From 77840bea99c206a593b14f2683e0d520d2274c91 Mon Sep 17 00:00:00 2001
From: Tom Hennen <tom.hennen@gmail.com>
Date: Sun, 11 Jan 2015 18:45:53 -0500
Subject: Updated QueueFragment to have a refresh button.

Issue #595

Also resolved an issue that may have been latent when 'All Episodes'
was default. Namely, that the search and other option menus didn't
show up until you navigated away and then back to the fragment.
This was happening because the items weren't loaded yet, which prevented
the options menu from being created.  If we switch back to 'All Episodes'
as being default, this problem may appear again.
---
 .../danoeh/antennapod/fragment/QueueFragment.java  | 50 ++++++++++++++++++++++
 app/src/main/res/menu/queue.xml                    | 13 ++++++
 2 files changed, 63 insertions(+)
 create mode 100644 app/src/main/res/menu/queue.xml

(limited to 'app/src')

diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
index ce77229d9..0c794fc44 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
@@ -3,6 +3,7 @@ package de.danoeh.antennapod.fragment;
 import android.app.Activity;
 import android.content.Context;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.v4.app.Fragment;
@@ -30,11 +31,15 @@ import de.danoeh.antennapod.adapter.DefaultActionButtonCallback;
 import de.danoeh.antennapod.adapter.QueueListAdapter;
 import de.danoeh.antennapod.core.asynctask.DownloadObserver;
 import de.danoeh.antennapod.core.feed.EventDistributor;
+import de.danoeh.antennapod.core.feed.Feed;
 import de.danoeh.antennapod.core.feed.FeedItem;
 import de.danoeh.antennapod.core.feed.FeedMedia;
+import de.danoeh.antennapod.core.service.download.DownloadService;
 import de.danoeh.antennapod.core.service.download.Downloader;
 import de.danoeh.antennapod.core.storage.DBReader;
+import de.danoeh.antennapod.core.storage.DBTasks;
 import de.danoeh.antennapod.core.storage.DBWriter;
+import de.danoeh.antennapod.core.storage.DownloadRequester;
 import de.danoeh.antennapod.menuhandler.MenuItemUtils;
 import de.danoeh.antennapod.menuhandler.NavDrawerActivity;
 
@@ -57,6 +62,7 @@ public class QueueFragment extends Fragment {
 
     private boolean itemsLoaded = false;
     private boolean viewsCreated = false;
+    private boolean isUpdatingFeeds = false;
 
     private AtomicReference<Activity> activity = new AtomicReference<Activity>();
 
@@ -125,10 +131,19 @@ public class QueueFragment extends Fragment {
         resetViewState();
     }
 
+    private final MenuItemUtils.UpdateRefreshMenuItemChecker updateRefreshMenuItemChecker = new MenuItemUtils.UpdateRefreshMenuItemChecker() {
+        @Override
+        public boolean isRefreshing() {
+            return DownloadService.isRunning && DownloadRequester.getInstance().isDownloadingFeeds();
+        }
+    };
+
     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
         super.onCreateOptionsMenu(menu, inflater);
         if (itemsLoaded && !MenuItemUtils.isActivityDrawerOpen((NavDrawerActivity) getActivity())) {
+            inflater.inflate(R.menu.queue, menu);
+
             final SearchView sv = new SearchView(getActivity());
             MenuItemUtils.addSearchItem(menu, sv);
             sv.setQueryHint(getString(R.string.search_hint));
@@ -145,7 +160,27 @@ public class QueueFragment extends Fragment {
                     return false;
                 }
             });
+            isUpdatingFeeds = MenuItemUtils.updateRefreshMenuItem(menu, R.id.refresh_item, updateRefreshMenuItemChecker);
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (!super.onOptionsItemSelected(item)) {
+            switch (item.getItemId()) {
+                case R.id.refresh_item:
+                    List<Feed> feeds = ((MainActivity) getActivity()).getFeeds();
+                    if (feeds != null) {
+                        DBTasks.refreshAllFeeds(getActivity(), feeds);
+                    }
+                    return true;
+                default:
+                    return false;
+            }
+        } else {
+            return true;
         }
+
     }
 
     @Override
@@ -258,6 +293,18 @@ public class QueueFragment extends Fragment {
             downloadObserver.onResume();
         }
         listAdapter.notifyDataSetChanged();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+            // we need to refresh the options menu because it sometimes
+            // needs data that may have just been loaded.
+            // Things will still work on APIs lower than honeycomb
+            // but they may have to change away from this view
+            // and then back to get the options menu.
+            Activity theActivity = activity.get();
+            if (theActivity != null) {
+                theActivity.invalidateOptionsMenu();
+            }
+        }
     }
 
     private DownloadObserver.Callback downloadObserverCallback = new DownloadObserver.Callback() {
@@ -307,6 +354,9 @@ public class QueueFragment extends Fragment {
         public void update(EventDistributor eventDistributor, Integer arg) {
             if ((arg & EVENTS) != 0) {
                 startItemLoader();
+                if (isUpdatingFeeds != updateRefreshMenuItemChecker.isRefreshing()) {
+                    getActivity().supportInvalidateOptionsMenu();
+                }
             }
         }
     };
diff --git a/app/src/main/res/menu/queue.xml b/app/src/main/res/menu/queue.xml
new file mode 100644
index 000000000..0f06ea952
--- /dev/null
+++ b/app/src/main/res/menu/queue.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:custom="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/refresh_item"
+        android:title="@string/refresh_label"
+        android:menuCategory="container"
+        custom:showAsAction="ifRoom"
+        android:icon="?attr/navigation_refresh"/>
+    
+</menu>
\ No newline at end of file
-- 
cgit v1.2.3


From 86e5e9ea1373980576f76ad1abf676a4c9911fac Mon Sep 17 00:00:00 2001
From: Tom Hennen <tom.hennen@gmail.com>
Date: Sun, 11 Jan 2015 18:53:11 -0500
Subject: Simlified invalidation of options menu. #595

---
 .../java/de/danoeh/antennapod/fragment/QueueFragment.java  | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

(limited to 'app/src')

diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
index 0c794fc44..302739b6a 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
@@ -294,17 +294,9 @@ public class QueueFragment extends Fragment {
         }
         listAdapter.notifyDataSetChanged();
 
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
-            // we need to refresh the options menu because it sometimes
-            // needs data that may have just been loaded.
-            // Things will still work on APIs lower than honeycomb
-            // but they may have to change away from this view
-            // and then back to get the options menu.
-            Activity theActivity = activity.get();
-            if (theActivity != null) {
-                theActivity.invalidateOptionsMenu();
-            }
-        }
+        // we need to refresh the options menu because it sometimes
+        // needs data that may have just been loaded.
+        getActivity().supportInvalidateOptionsMenu();
     }
 
     private DownloadObserver.Callback downloadObserverCallback = new DownloadObserver.Callback() {
-- 
cgit v1.2.3


From 2d68f025d7429103e702c3ba4e15b0529573aa02 Mon Sep 17 00:00:00 2001
From: Tim Butram <tbutram@worldsproject.org>
Date: Tue, 26 Aug 2014 21:18:00 -0400
Subject: Added option to delete epidode upon completion of playback.

Conflicts:
	app/dslv
---
 app/src/main/res/xml/preferences.xml | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'app/src')

diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index 5175acdcb..dedfb74c3 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -35,6 +35,12 @@
             android:key="prefFollowQueue"
             android:summary="@string/pref_followQueue_sum"
             android:title="@string/pref_followQueue_title"/>
+        <CheckBoxPreference
+            android:defaultValue="false"
+            android:enabled="true"
+            android:key="prefAutoDelete"
+            android:summary="Delete epidsode when playback completes"
+            android:title="Delete On Finish"/>
         <Preference
             android:key="prefPlaybackSpeedLauncher"
             android:summary="@string/pref_playback_speed_sum"
-- 
cgit v1.2.3


From 7f02e1b1875d2fa3391308a57def055b95d76c3d Mon Sep 17 00:00:00 2001
From: Sam Whited <sam@samwhited.com>
Date: Sun, 18 Jan 2015 19:53:53 -0500
Subject: Option to delete episode after playback

Fixes #498
---
 app/src/main/res/xml/preferences.xml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'app/src')

diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index dedfb74c3..a5887e205 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -39,13 +39,13 @@
             android:defaultValue="false"
             android:enabled="true"
             android:key="prefAutoDelete"
-            android:summary="Delete epidsode when playback completes"
-            android:title="Delete On Finish"/>
+            android:summary="@string/pref_auto_delete_sum"
+            android:title="@string/pref_auto_delete_title"/>
         <Preference
             android:key="prefPlaybackSpeedLauncher"
             android:summary="@string/pref_playback_speed_sum"
             android:title="@string/pref_playback_speed_title" />
-        
+
         <CheckBoxPreference
             android:defaultValue="false"
             android:enabled="true"
-- 
cgit v1.2.3


From 520ed8327c5d04134619f47eebf3c81615665f13 Mon Sep 17 00:00:00 2001
From: drabux <drabux@fouragan.net>
Date: Thu, 22 Jan 2015 23:37:07 -0500
Subject: Options to sort queue by date

---
 .../de/danoeh/antennapod/fragment/QueueFragment.java   |  6 ++++++
 app/src/main/res/menu/queue.xml                        | 18 ++++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

(limited to 'app/src')

diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
index 302739b6a..185af0e93 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
@@ -174,6 +174,12 @@ public class QueueFragment extends Fragment {
                         DBTasks.refreshAllFeeds(getActivity(), feeds);
                     }
                     return true;
+                case R.id.queue_sort_date_asc:
+                    DBWriter.sortQueueItemByDate(getActivity(), true, true);
+                    return true;
+                case R.id.queue_sort_date_desc:
+                    DBWriter.sortQueueItemByDate(getActivity(), false, true);
+                    return true;
                 default:
                     return false;
             }
diff --git a/app/src/main/res/menu/queue.xml b/app/src/main/res/menu/queue.xml
index 0f06ea952..fa4d21b21 100644
--- a/app/src/main/res/menu/queue.xml
+++ b/app/src/main/res/menu/queue.xml
@@ -9,5 +9,19 @@
         android:menuCategory="container"
         custom:showAsAction="ifRoom"
         android:icon="?attr/navigation_refresh"/>
-    
-</menu>
\ No newline at end of file
+
+    <item
+        android:id="@+id/queue_sort"
+        android:title="@string/sort">
+
+        <menu>
+          <item
+            android:id="@+id/queue_sort_date_asc"
+            android:title="@string/date_asc"/>
+          <item
+            android:id="@+id/queue_sort_date_desc"
+            android:title="@string/date_desc"/>
+        </menu>
+      </item>
+
+</menu>
-- 
cgit v1.2.3


From 9764b8093544857261bb5abf99c1ab9dbfcda65a Mon Sep 17 00:00:00 2001
From: drabux <drabux@fouragan.net>
Date: Sat, 24 Jan 2015 13:17:19 -0500
Subject: Options to sort queue refactor, add sort by alpha and duration

---
 .../danoeh/antennapod/fragment/QueueFragment.java  | 17 +++++++-
 app/src/main/res/menu/queue.xml                    | 50 +++++++++++++++++++---
 2 files changed, 58 insertions(+), 9 deletions(-)

(limited to 'app/src')

diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
index 185af0e93..ca8543b4c 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/QueueFragment.java
@@ -40,6 +40,7 @@ import de.danoeh.antennapod.core.storage.DBReader;
 import de.danoeh.antennapod.core.storage.DBTasks;
 import de.danoeh.antennapod.core.storage.DBWriter;
 import de.danoeh.antennapod.core.storage.DownloadRequester;
+import de.danoeh.antennapod.core.util.QueueSorter;
 import de.danoeh.antennapod.menuhandler.MenuItemUtils;
 import de.danoeh.antennapod.menuhandler.NavDrawerActivity;
 
@@ -174,11 +175,23 @@ public class QueueFragment extends Fragment {
                         DBTasks.refreshAllFeeds(getActivity(), feeds);
                     }
                     return true;
+                case R.id.queue_sort_alpha_asc:
+                    QueueSorter.sort(getActivity(), QueueSorter.Rule.ALPHA_ASC, true);
+                    return true;
+                case R.id.queue_sort_alpha_desc:
+                    QueueSorter.sort(getActivity(), QueueSorter.Rule.ALPHA_DESC, true);
+                    return true;
                 case R.id.queue_sort_date_asc:
-                    DBWriter.sortQueueItemByDate(getActivity(), true, true);
+                    QueueSorter.sort(getActivity(), QueueSorter.Rule.DATE_ASC, true);
                     return true;
                 case R.id.queue_sort_date_desc:
-                    DBWriter.sortQueueItemByDate(getActivity(), false, true);
+                    QueueSorter.sort(getActivity(), QueueSorter.Rule.DATE_DESC, true);
+                    return true;
+                case R.id.queue_sort_duration_asc:
+                    QueueSorter.sort(getActivity(), QueueSorter.Rule.DURATION_ASC, true);
+                    return true;
+                case R.id.queue_sort_duration_desc:
+                    QueueSorter.sort(getActivity(), QueueSorter.Rule.DURATION_DESC, true);
                     return true;
                 default:
                     return false;
diff --git a/app/src/main/res/menu/queue.xml b/app/src/main/res/menu/queue.xml
index fa4d21b21..b85279e5a 100644
--- a/app/src/main/res/menu/queue.xml
+++ b/app/src/main/res/menu/queue.xml
@@ -15,13 +15,49 @@
         android:title="@string/sort">
 
         <menu>
-          <item
-            android:id="@+id/queue_sort_date_asc"
-            android:title="@string/date_asc"/>
-          <item
-            android:id="@+id/queue_sort_date_desc"
-            android:title="@string/date_desc"/>
+            <item
+                android:id="@+id/queue_sort_alpha"
+                android:title="@string/alpha">
+
+                <menu>
+                    <item
+                        android:id="@+id/queue_sort_alpha_asc"
+                        android:title="@string/ascending"/>
+                    <item
+                        android:id="@+id/queue_sort_alpha_desc"
+                        android:title="@string/descending"/>
+                </menu>
+            </item>
+
+            <item
+                android:id="@+id/queue_sort_date"
+                android:title="@string/date">
+
+                <menu>
+                    <item
+                        android:id="@+id/queue_sort_date_asc"
+                        android:title="@string/ascending"/>
+                    <item
+                        android:id="@+id/queue_sort_date_desc"
+                        android:title="@string/descending"/>
+                </menu>
+            </item>
+
+            <item
+                android:id="@+id/queue_sort_duration"
+                android:title="@string/duration">
+
+                <menu>
+                    <item
+                        android:id="@+id/queue_sort_duration_asc"
+                        android:title="@string/ascending"/>
+                    <item
+                        android:id="@+id/queue_sort_duration_desc"
+                        android:title="@string/descending"/>
+                </menu>
+            </item>
+
         </menu>
-      </item>
+    </item>
 
 </menu>
-- 
cgit v1.2.3


From ad583e453d6be87b1c0d9a045119114c75faaf23 Mon Sep 17 00:00:00 2001
From: Tobias Preuss <tobias.preuss@googlemail.com>
Date: Sun, 25 Jan 2015 10:27:46 +0100
Subject: Use design time attributes to assist layouting and value preview.

+ See: http://tools.android.com/tips/layout-designtime-attributes
+ This commit introduces no functional code changes!
---
 app/src/main/res/layout-v14/directory_chooser.xml  | 15 +++++--
 app/src/main/res/layout/audioplayer_activity.xml   | 49 +++++++++++++++-------
 app/src/main/res/layout/cover_fragment.xml         |  4 +-
 app/src/main/res/layout/directory_chooser.xml      | 12 ++++--
 .../res/layout/downloaded_episodeslist_item.xml    | 27 ++++++++----
 app/src/main/res/layout/downloadlist_item.xml      | 25 +++++++----
 app/src/main/res/layout/downloadlog_item.xml       | 24 ++++++++---
 .../main/res/layout/ellipsize_start_listitem.xml   |  8 +++-
 .../main/res/layout/external_player_fragment.xml   | 17 ++++++--
 app/src/main/res/layout/feedinfo.xml               | 30 +++++++++----
 .../main/res/layout/feeditem_fragment_header.xml   | 27 ++++++++----
 app/src/main/res/layout/feeditemlist_header.xml    | 18 +++++---
 app/src/main/res/layout/feeditemlist_item.xml      | 33 +++++++++++----
 app/src/main/res/layout/gpodnet_podcast_list.xml   | 11 +++--
 .../main/res/layout/gpodnet_podcast_listitem.xml   | 14 +++++--
 .../main/res/layout/gpodnetauth_credentials.xml    |  5 ++-
 app/src/main/res/layout/gpodnetauth_device.xml     |  4 +-
 .../main/res/layout/itemdescription_listitem.xml   | 14 +++++--
 app/src/main/res/layout/main.xml                   | 11 +++--
 app/src/main/res/layout/nav_feedlistitem.xml       | 10 ++++-
 app/src/main/res/layout/nav_list.xml               | 15 +++++--
 app/src/main/res/layout/nav_listitem.xml           | 16 +++++--
 app/src/main/res/layout/nav_section_item.xml       |  6 ++-
 app/src/main/res/layout/new_episodes_fragment.xml  | 10 ++++-
 app/src/main/res/layout/new_episodes_listitem.xml  | 30 +++++++++----
 app/src/main/res/layout/onlinefeedview_header.xml  | 17 ++++++--
 app/src/main/res/layout/opml_import.xml            | 11 +++--
 app/src/main/res/layout/queue_listitem.xml         | 25 +++++++----
 app/src/main/res/layout/searchlist_item.xml        | 21 +++++++---
 app/src/main/res/layout/secondary_action.xml       |  4 +-
 app/src/main/res/layout/simplechapter_item.xml     | 24 ++++++++---
 app/src/main/res/layout/time_dialog.xml            |  7 +++-
 app/src/main/res/layout/vertical_list_divider.xml  |  4 +-
 app/src/main/res/values/design_time_attributes.xml | 24 +++++++++++
 34 files changed, 427 insertions(+), 145 deletions(-)
 create mode 100644 app/src/main/res/values/design_time_attributes.xml

(limited to 'app/src')

diff --git a/app/src/main/res/layout-v14/directory_chooser.xml b/app/src/main/res/layout-v14/directory_chooser.xml
index fb45d9937..8f9c4ee93 100644
--- a/app/src/main/res/layout-v14/directory_chooser.xml
+++ b/app/src/main/res/layout-v14/directory_chooser.xml
@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent" >
+    android:layout_height="match_parent"
+    tools:background="@android:color/darker_gray">
 
     <RelativeLayout
         android:id="@+id/footer"
@@ -62,7 +64,9 @@
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
             android:background="?attr/selectableItemBackground"
-            android:src="?attr/navigation_up" />
+            android:src="?attr/navigation_up"
+            tools:src="@drawable/navigation_up"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvSelectedFolderLabel"
@@ -74,7 +78,8 @@
             android:layout_marginTop="8dp"
             android:layout_toRightOf="@id/butNavUp"
             android:text="@string/selected_folder_label"
-            android:textStyle="bold" >
+            android:textStyle="bold"
+            tools:background="@android:color/holo_green_dark">
         </TextView>
 
         <TextView
@@ -87,7 +92,9 @@
             android:layout_toRightOf="@id/butNavUp"
             android:ellipsize="start"
             android:scrollHorizontally="true"
-            android:singleLine="true" />
+            android:singleLine="true"
+            tools:text="/path/to/selected/folder"
+            tools:background="@android:color/holo_green_dark"/>
 
         <View
             android:id="@+id/divider"
diff --git a/app/src/main/res/layout/audioplayer_activity.xml b/app/src/main/res/layout/audioplayer_activity.xml
index 4d04771dd..644d8fe90 100644
--- a/app/src/main/res/layout/audioplayer_activity.xml
+++ b/app/src/main/res/layout/audioplayer_activity.xml
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/drawer_layout"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    tools:background="@android:color/holo_red_dark">
 
     <LinearLayout
         android:layout_width="match_parent"
@@ -14,7 +16,8 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:background="?attr/colorPrimary"
-            android:minHeight="?attr/actionBarSize">
+            android:minHeight="?attr/actionBarSize"
+            tools:background="@android:color/darker_gray">
 
             <LinearLayout
                 android:layout_width="match_parent"
@@ -34,7 +37,9 @@
                     android:gravity="left"
                     android:maxLines="2"
                     android:textColor="?android:attr/textColorPrimary"
-                    android:textSize="16sp" />
+                    android:textSize="16sp"
+                    tools:text="Audio title"
+                    tools:background="@android:color/holo_green_dark" />
 
                 <ImageButton
                     android:id="@+id/butCover"
@@ -44,7 +49,9 @@
                     android:layout_marginLeft="8dp"
                     android:background="?attr/selectableItemBackground"
                     android:contentDescription="@string/show_cover_label"
-                    android:gravity="right" />
+                    android:gravity="right"
+                    tools:src="@drawable/ic_stat_antenna_default"
+                    tools:background="@android:color/holo_green_dark" />
 
 
             </LinearLayout>
@@ -63,7 +70,8 @@
                 android:layout_width="match_parent"
                 android:layout_height="@dimen/audioplayer_playercontrols_length"
                 android:layout_alignParentBottom="true"
-                android:background="?attr/overlay_background">
+                android:background="?attr/overlay_background"
+                tools:background="@android:color/holo_purple">
 
                 <ImageButton
                     android:id="@+id/butPlay"
@@ -72,7 +80,9 @@
                     android:layout_centerHorizontal="true"
                     android:background="?attr/selectableItemBackground"
                     android:contentDescription="@string/pause_label"
-                    android:src="?attr/av_pause" />
+                    android:src="?attr/av_pause"
+                    tools:src="@drawable/ic_pause_white_36dp"
+                    tools:background="@android:color/holo_green_dark" />
 
                 <ImageButton
                     android:id="@+id/butRev"
@@ -81,7 +91,9 @@
                     android:layout_toLeftOf="@id/butPlay"
                     android:background="?attr/selectableItemBackground"
                     android:contentDescription="@string/rewind_label"
-                    android:src="?attr/av_rew_big" />
+                    android:src="?attr/av_rew_big"
+                    tools:src="@drawable/ic_fast_rewind_white_36dp"
+                    tools:background="@android:color/holo_blue_dark" />
 
                 <ImageButton
                     android:id="@+id/butFF"
@@ -90,7 +102,9 @@
                     android:layout_toRightOf="@id/butPlay"
                     android:background="?attr/selectableItemBackground"
                     android:contentDescription="@string/fast_forward_label"
-                    android:src="?attr/av_ff_big" />
+                    android:src="?attr/av_ff_big"
+                    tools:src="@drawable/ic_fast_forward_white_36dp"
+                    tools:background="@android:color/holo_blue_dark" />
 
                 <Button
                     android:id="@+id/butPlaybackSpeed"
@@ -102,7 +116,8 @@
                     android:src="?attr/av_fast_forward"
                     android:textColor="@color/gray"
                     android:textSize="@dimen/text_size_medium"
-                    android:visibility="gone" />
+                    android:visibility="gone"
+                    tools:background="@android:color/holo_green_dark" />
 
                 <ImageButton
                     android:id="@+id/butNavChaptersShownotes"
@@ -110,7 +125,9 @@
                     android:layout_height="match_parent"
                     android:layout_toLeftOf="@id/butRev"
                     android:background="?attr/selectableItemBackground"
-                    android:scaleType="centerInside" />
+                    android:scaleType="centerInside"
+                    android:src="@drawable/ic_toc_white_36dp"
+                    tools:background="@android:color/holo_green_dark" />
             </RelativeLayout>
 
             <RelativeLayout
@@ -131,7 +148,8 @@
                     android:layout_marginTop="16dp"
                     android:text="@string/position_default_label"
                     android:textColor="?android:attr/textColorSecondary"
-                    android:textSize="@dimen/text_size_micro" />
+                    android:textSize="@dimen/text_size_micro"
+                    tools:background="@android:color/holo_green_dark" />
 
                 <TextView
                     android:id="@+id/txtvLength"
@@ -144,7 +162,8 @@
                     android:layout_marginTop="16dp"
                     android:text="@string/position_default_label"
                     android:textColor="?android:attr/textColorSecondary"
-                    android:textSize="@dimen/text_size_micro" />
+                    android:textSize="@dimen/text_size_micro"
+                    tools:background="@android:color/holo_green_dark" />
 
                 <SeekBar
                     android:id="@+id/sbPosition"
@@ -156,7 +175,8 @@
                     android:layout_marginTop="16dp"
                     android:layout_toLeftOf="@id/txtvLength"
                     android:layout_toRightOf="@id/txtvPosition"
-                    android:max="500" />
+                    android:max="500"
+                    tools:background="@android:color/holo_green_dark" />
             </RelativeLayout>
 
             <FrameLayout
@@ -165,7 +185,8 @@
                 android:layout_height="0px"
                 android:layout_above="@id/playtime_layout"
                 android:layout_alignParentTop="true"
-                android:foreground="?android:windowContentOverlay" />
+                android:foreground="?android:windowContentOverlay"
+                tools:background="@android:color/holo_orange_light" />
 
         </RelativeLayout>
 
diff --git a/app/src/main/res/layout/cover_fragment.xml b/app/src/main/res/layout/cover_fragment.xml
index e6325da4b..7d86346e3 100644
--- a/app/src/main/res/layout/cover_fragment.xml
+++ b/app/src/main/res/layout/cover_fragment.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/cover_fragment_root"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -12,6 +13,7 @@
         android:layout_height="match_parent"
         android:layout_gravity="center"
         android:adjustViewBounds="true"
-        android:scaleType="centerCrop" />
+        android:scaleType="centerCrop"
+        tools:src="@android:drawable/sym_def_app_icon" />
 
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/directory_chooser.xml b/app/src/main/res/layout/directory_chooser.xml
index 7511c164a..93cd1c0d3 100644
--- a/app/src/main/res/layout/directory_chooser.xml
+++ b/app/src/main/res/layout/directory_chooser.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent" >
 
@@ -40,7 +41,9 @@
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
             android:background="?attr/selectableItemBackground"
-            android:src="?attr/navigation_up" />
+            android:src="?attr/navigation_up"
+            tools:src="@drawable/navigation_up"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvSelectedFolderLabel"
@@ -52,7 +55,8 @@
             android:layout_marginTop="8dp"
             android:layout_toRightOf="@id/butNavUp"
             android:text="@string/selected_folder_label"
-            android:textStyle="bold" >
+            android:textStyle="bold"
+            tools:background="@android:color/holo_blue_bright">
         </TextView>
 
         <TextView
@@ -65,7 +69,9 @@
             android:layout_toRightOf="@id/butNavUp"
             android:ellipsize="start"
             android:scrollHorizontally="true"
-            android:singleLine="true" />
+            android:singleLine="true"
+            tools:text="/path/to/selected/folder"
+            tools:background="@android:color/holo_blue_bright"/>
 
         <View
             android:id="@+id/divider"
diff --git a/app/src/main/res/layout/downloaded_episodeslist_item.xml b/app/src/main/res/layout/downloaded_episodeslist_item.xml
index 18db746b2..6b5f7369a 100644
--- a/app/src/main/res/layout/downloaded_episodeslist_item.xml
+++ b/app/src/main/res/layout/downloaded_episodeslist_item.xml
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/listitem_threeline_height"
-    android:orientation="horizontal">
+    android:orientation="horizontal"
+    tools:background="@android:color/darker_gray">
 
     <ImageView
         android:id="@+id/imgvImage"
@@ -14,7 +16,9 @@
         android:layout_marginLeft="@dimen/listitem_threeline_horizontalpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
         android:contentDescription="@string/cover_label"
-        android:scaleType="centerCrop" />
+        android:scaleType="centerCrop"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark" />
 
     <RelativeLayout
         android:layout_width="0dp"
@@ -22,7 +26,8 @@
         android:layout_marginLeft="@dimen/listitem_threeline_textleftpadding"
         android:layout_marginRight="@dimen/listitem_threeline_textrightpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
-        android:layout_weight="1">
+        android:layout_weight="1"
+        tools:background="@android:color/holo_red_dark">
 
         <TextView
             android:id="@+id/txtvTitle"
@@ -33,7 +38,9 @@
             android:layout_alignParentRight="true"
             android:layout_alignParentTop="true"
             android:layout_centerVertical="true"
-            android:layout_marginBottom="4dp" />
+            android:layout_marginBottom="4dp"
+            tools:text="Downloaded episode title"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvSize"
@@ -41,7 +48,9 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
-            android:layout_below="@id/txtvTitle" />
+            android:layout_below="@id/txtvTitle"
+            tools:text="23 MB"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvPublished"
@@ -49,7 +58,9 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentRight="true"
-            android:layout_below="@id/txtvTitle" />
+            android:layout_below="@id/txtvTitle"
+            tools:text="Jan 23"
+            tools:background="@android:color/holo_green_dark" />
 
     </RelativeLayout>
 
@@ -64,6 +75,8 @@
         android:contentDescription="@string/remove_episode_lable"
         android:focusable="false"
         android:focusableInTouchMode="false"
-        android:src="?attr/content_discard" />
+        android:src="?attr/content_discard"
+        tools:src="@drawable/ic_delete_white_24dp"
+        tools:background="@android:color/holo_green_dark" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/downloadlist_item.xml b/app/src/main/res/layout/downloadlist_item.xml
index df6ebf762..e7694502b 100644
--- a/app/src/main/res/layout/downloadlist_item.xml
+++ b/app/src/main/res/layout/downloadlist_item.xml
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/listitem_threeline_height"
-    android:orientation="horizontal">
+    android:orientation="horizontal"
+    tools:background="@android:color/darker_gray">
 
     <LinearLayout
         android:layout_width="0dp"
@@ -19,7 +21,9 @@
             android:ellipsize="end"
             android:lines="1"
             android:textColor="?android:attr/textColorPrimary"
-            android:textSize="16sp" />
+            android:textSize="16sp"
+            tools:text="Download item title"
+            tools:background="@android:color/holo_green_dark" />
 
         <ProgressBar
             android:id="@+id/progProgress"
@@ -29,7 +33,8 @@
             android:layout_marginBottom="4dp"
             android:layout_marginLeft="@dimen/listitem_threeline_horizontalpadding"
             android:layout_marginRight="@dimen/listitem_threeline_horizontalpadding"
-            android:layout_marginTop="4dp" />
+            android:layout_marginTop="4dp"
+            tools:background="@android:color/holo_blue_light" />
 
         <RelativeLayout
             android:layout_width="match_parent"
@@ -46,7 +51,9 @@
                 android:ellipsize="end"
                 android:lines="1"
                 android:textColor="?android:attr/textColorPrimary"
-                android:textSize="@dimen/text_size_small" />
+                android:textSize="@dimen/text_size_small"
+                tools:text="21 MB / 42 MB"
+                tools:background="@android:color/holo_green_dark" />
 
             <TextView
                 android:id="@+id/txtvPercent"
@@ -56,7 +63,9 @@
                 android:ellipsize="end"
                 android:lines="1"
                 android:textColor="?android:attr/textColorPrimary"
-                android:textSize="@dimen/text_size_small" />
+                android:textSize="@dimen/text_size_small"
+                tools:text="50%"
+                tools:background="@android:color/holo_green_dark" />
         </RelativeLayout>
 
     </LinearLayout>
@@ -72,5 +81,7 @@
         android:contentDescription="@string/cancel_download_label"
         android:focusable="false"
         android:focusableInTouchMode="false"
-        android:src="?attr/navigation_cancel" />
-</LinearLayout>
\ No newline at end of file
+        android:src="?attr/navigation_cancel"
+        tools:src="@drawable/ic_cancel_white_24dp"
+        tools:background="@android:color/holo_green_dark" />
+</LinearLayout>
diff --git a/app/src/main/res/layout/downloadlog_item.xml b/app/src/main/res/layout/downloadlog_item.xml
index c2ef93c71..df1501222 100644
--- a/app/src/main/res/layout/downloadlog_item.xml
+++ b/app/src/main/res/layout/downloadlog_item.xml
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    tools:background="@android:color/darker_gray">
 
     <RelativeLayout
         android:layout_width="match_parent"
@@ -17,7 +19,9 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentRight="true"
-            android:layout_marginLeft="@dimen/listitem_threeline_textleftpadding" />
+            android:layout_marginLeft="@dimen/listitem_threeline_textleftpadding"
+            tools:text="Media file"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvTitle"
@@ -26,7 +30,9 @@
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
-            android:layout_toLeftOf="@id/txtvType" />
+            android:layout_toLeftOf="@id/txtvType"
+            tools:text="Download item title"
+            tools:background="@android:color/holo_blue_light" />
     </RelativeLayout>
 
     <RelativeLayout
@@ -42,14 +48,18 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
-            android:layout_marginRight="8dp" />
+            android:layout_marginRight="8dp"
+            tools:text="January 23"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvStatus"
             style="@style/AntennaPod.TextView.ListItemSecondaryTitle"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_alignParentRight="true" />
+            android:layout_alignParentRight="true"
+            tools:text="successful"
+            tools:background="@android:color/holo_green_dark" />
 
     </RelativeLayout>
 
@@ -61,6 +71,8 @@
         android:layout_marginLeft="@dimen/listitem_threeline_horizontalpadding"
         android:layout_marginRight="@dimen/listitem_threeline_horizontalpadding"
         android:textColor="?android:attr/textColorTertiary"
-        android:textSize="@dimen/text_size_micro" />
+        android:textSize="@dimen/text_size_micro"
+        tools:text="@string/design_time_downloaded_log_failure_reason"
+        tools:background="@android:color/holo_green_dark" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/ellipsize_start_listitem.xml b/app/src/main/res/layout/ellipsize_start_listitem.xml
index 161e1aa37..f737b60d3 100644
--- a/app/src/main/res/layout/ellipsize_start_listitem.xml
+++ b/app/src/main/res/layout/ellipsize_start_listitem.xml
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
               android:orientation="vertical"
               android:layout_width="match_parent"
-              android:layout_height="match_parent">
+              android:layout_height="match_parent"
+              tools:background="@android:color/darker_gray">
 
     <TextView
         android:id="@+id/txtvTitle"
@@ -14,6 +16,8 @@
         android:lines="1"
         android:singleLine="true"
         android:layout_margin="16dp"
-        android:ellipsize="start"/>
+        android:ellipsize="start"
+        tools:text="List item title"
+        tools:background="@android:color/holo_green_dark"/>
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/external_player_fragment.xml b/app/src/main/res/layout/external_player_fragment.xml
index 2b5c90847..f9608fafc 100644
--- a/app/src/main/res/layout/external_player_fragment.xml
+++ b/app/src/main/res/layout/external_player_fragment.xml
@@ -1,11 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
               android:id="@+id/fragmentLayout"
               android:layout_width="match_parent"
               android:layout_height="wrap_content"
               android:orientation="vertical"
               android:visibility="gone"
-              android:background="?attr/colorPrimary">
+              android:background="?attr/colorPrimary"
+              tools:visibility="visible"
+              tools:background="@android:color/darker_gray">
 
     <View
         android:layout_width="match_parent"
@@ -32,7 +35,9 @@
                 android:padding="4dp"
                 android:adjustViewBounds="true"
                 android:cropToPadding="true"
-                android:scaleType="fitXY"/>
+                android:scaleType="fitXY"
+                tools:src="@drawable/ic_stat_antenna_default"
+                tools:background="@android:color/holo_green_dark" />
 
             <TextView
                 android:id="@+id/txtvTitle"
@@ -46,7 +51,9 @@
                 android:ellipsize="end"
                 android:maxLines="2"
                 android:textSize="18sp"
-                android:fontFamily="sans-serif-light"/>
+                android:fontFamily="sans-serif-light"
+                tools:text="Playback item title"
+                tools:background="@android:color/holo_green_dark"/>
         </RelativeLayout>
 
         <ImageButton
@@ -54,7 +61,9 @@
             android:contentDescription="@string/pause_label"
             android:layout_width="@dimen/external_player_height"
             android:layout_height="@dimen/external_player_height"
-            android:background="?attr/selectableItemBackground"/>
+            android:background="?attr/selectableItemBackground"
+            tools:src="@drawable/ic_play_arrow_white_36dp"
+            tools:background="@android:color/holo_green_dark"/>
     </LinearLayout>
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/feedinfo.xml b/app/src/main/res/layout/feedinfo.xml
index 6da200951..a52104afa 100644
--- a/app/src/main/res/layout/feedinfo.xml
+++ b/app/src/main/res/layout/feedinfo.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              xmlns:tools="http://schemas.android.com/tools"
               android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:orientation="vertical">
@@ -19,7 +20,9 @@
             android:layout_height="70dp"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
-            android:layout_margin="4dp"/>
+            android:layout_margin="4dp"
+            tools:src="@drawable/ic_stat_antenna_default"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvTitle"
@@ -28,7 +31,9 @@
             android:layout_centerVertical="true"
             android:layout_margin="4dp"
             android:layout_toRightOf="@id/imgvCover"
-            style="@style/AntennaPod.TextView.Heading"/>
+            style="@style/AntennaPod.TextView.Heading"
+            tools:text="Feed title"
+            tools:background="@android:color/holo_green_dark" />
 
         <View
             android:id="@+id/divider"
@@ -67,7 +72,8 @@
                     android:layout_alignParentLeft="true"
                     android:layout_margin="8dp"
                     android:text="@string/author_label"
-                    android:textColor="?android:attr/textColorPrimary"/>
+                    android:textColor="?android:attr/textColorPrimary"
+                    tools:background="@android:color/holo_red_light" />
 
                 <TextView
                     android:id="@+id/txtvAuthor"
@@ -75,7 +81,9 @@
                     android:layout_height="wrap_content"
                     android:layout_alignParentRight="true"
                     android:layout_margin="8dp"
-                    android:layout_toRightOf="@id/center_divider"/>
+                    android:layout_toRightOf="@id/center_divider"
+                    tools:text="Daniel Oeh"
+                    tools:background="@android:color/holo_green_dark" />
 
                 <TextView
                     android:id="@+id/lblLanguage"
@@ -85,7 +93,8 @@
                     android:layout_below="@id/txtvAuthor"
                     android:layout_margin="8dp"
                     android:text="@string/language_label"
-                    android:textColor="?android:attr/textColorPrimary"/>
+                    android:textColor="?android:attr/textColorPrimary"
+                    tools:background="@android:color/holo_red_light" />
 
                 <TextView
                     android:id="@+id/txtvLanguage"
@@ -94,7 +103,9 @@
                     android:layout_alignParentRight="true"
                     android:layout_below="@id/txtvAuthor"
                     android:layout_margin="8dp"
-                    android:layout_toRightOf="@id/center_divider"/>
+                    android:layout_toRightOf="@id/center_divider"
+                    tools:text="English"
+                    tools:background="@android:color/holo_green_dark" />
             </RelativeLayout>
 
             <TextView
@@ -115,7 +126,8 @@
                 android:layout_margin="8dp"
                 android:text="@string/auto_download_label"
                 android:enabled="false"
-                android:textColor="?android:attr/textColorPrimary"/>
+                android:textColor="?android:attr/textColorPrimary"
+                tools:background="@android:color/holo_red_light" />
 
             <TextView
                 android:id="@+id/txtvAuthentication"
@@ -196,7 +208,9 @@
                 android:id="@+id/txtvDescription"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:layout_margin="8dp"/>
+                android:layout_margin="8dp"
+                android:text="@string/design_time_lorem_ipsum"
+                tools:background="@android:color/holo_green_dark" />
 
         </LinearLayout>
     </ScrollView>
diff --git a/app/src/main/res/layout/feeditem_fragment_header.xml b/app/src/main/res/layout/feeditem_fragment_header.xml
index bab089d3b..5956ae062 100644
--- a/app/src/main/res/layout/feeditem_fragment_header.xml
+++ b/app/src/main/res/layout/feeditem_fragment_header.xml
@@ -1,12 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/header"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_gravity="center_horizontal"
     android:background="?attr/colorPrimary"
     android:gravity="center_horizontal"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    tools:background="@android:color/darker_gray">
 
 
     <RelativeLayout
@@ -24,7 +26,9 @@
             android:layout_marginBottom="8dp"
             android:layout_marginTop="16dp"
             android:contentDescription="@string/cover_label"
-            android:gravity="center_vertical" />
+            android:gravity="center_vertical"
+            tools:src="@drawable/ic_stat_antenna_default"
+            tools:background="@android:color/holo_green_dark" />
 
 
         <ImageButton
@@ -36,7 +40,9 @@
             android:background="?attr/selectableItemBackground"
             android:contentDescription="@string/butAction_label"
             android:paddingTop="4dp"
-            android:src="?attr/ic_action_overflow" />
+            android:src="?attr/ic_action_overflow"
+            tools:src="@drawable/ic_info_white_24dp"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvTitle"
@@ -50,7 +56,9 @@
             android:layout_marginTop="16dp"
             android:layout_toLeftOf="@id/butMoreActions"
             android:layout_toRightOf="@id/imgvCover"
-            android:maxLines="5" />
+            android:maxLines="5"
+            tools:text="Podcast title"
+            tools:background="@android:color/holo_green_dark" />
     </RelativeLayout>
 
     <ProgressBar
@@ -67,7 +75,8 @@
         android:layout_width="match_parent"
         android:layout_height="?attr/actionBarSize"
         android:layout_marginRight="8dp"
-        android:orientation="horizontal">
+        android:orientation="horizontal"
+        tools:background="@android:color/holo_blue_bright">
 
         <Button
             android:id="@+id/butAction1"
@@ -80,7 +89,9 @@
             android:ellipsize="end"
             android:paddingTop="4dp"
             android:textColor="?android:attr/textColorPrimary"
-            android:textSize="@dimen/text_size_small" />
+            android:textSize="@dimen/text_size_small"
+            tools:text="Button 1"
+            tools:background="@android:color/holo_red_light" />
 
         <Button
             android:id="@+id/butAction2"
@@ -93,7 +104,9 @@
             android:ellipsize="end"
             android:paddingTop="4dp"
             android:textColor="?android:attr/textColorPrimary"
-            android:textSize="@dimen/text_size_small" />
+            android:textSize="@dimen/text_size_small"
+            tools:text="Button 2"
+            tools:background="@android:color/holo_orange_dark" />
 
     </LinearLayout>
 
diff --git a/app/src/main/res/layout/feeditemlist_header.xml b/app/src/main/res/layout/feeditemlist_header.xml
index e55ef4c3e..4619580e3 100644
--- a/app/src/main/res/layout/feeditemlist_header.xml
+++ b/app/src/main/res/layout/feeditemlist_header.xml
@@ -4,7 +4,8 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/feeditemlist_header_height"
-    tools:context="de.danoeh.antennapod.activity.MainActivity">
+    tools:context="de.danoeh.antennapod.activity.MainActivity"
+    tools:background="@android:color/darker_gray">
 
     <ImageView
         android:id="@+id/imgvBackground"
@@ -22,7 +23,9 @@
         android:layout_marginBottom="16dp"
         android:layout_marginLeft="16dp"
         android:layout_marginTop="16dp"
-        android:contentDescription="@string/cover_label" />
+        android:contentDescription="@string/cover_label"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark"/>
 
     <ImageButton
         android:id="@+id/butShowInfo"
@@ -35,7 +38,8 @@
         android:layout_marginTop="8dp"
         android:background="?attr/selectableItemBackground"
         android:contentDescription="@string/show_info_label"
-        android:src="@drawable/ic_info_white_24dp" />
+        android:src="@drawable/ic_info_white_24dp"
+        tools:background="@android:color/holo_green_dark"/>
 
     <TextView
         android:id="@+id/txtvTitle"
@@ -52,7 +56,9 @@
         android:maxLines="2"
         android:shadowColor="@color/black"
         android:shadowRadius="3"
-        android:textColor="@color/white" />
+        android:textColor="@color/white"
+        tools:text="Podcast title"
+        tools:background="@android:color/holo_green_dark" />
 
     <TextView
         android:id="@+id/txtvAuthor"
@@ -68,7 +74,9 @@
         android:shadowColor="@color/black"
         android:shadowRadius="3"
         android:textColor="@color/white"
-        android:textSize="@dimen/text_size_small" />
+        android:textSize="@dimen/text_size_small"
+        tools:text="Podcast author"
+        tools:background="@android:color/holo_green_dark" />
 
 
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/feeditemlist_item.xml b/app/src/main/res/layout/feeditemlist_item.xml
index 4d9f79394..03595990e 100644
--- a/app/src/main/res/layout/feeditemlist_item.xml
+++ b/app/src/main/res/layout/feeditemlist_item.xml
@@ -4,14 +4,16 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/listitem_threeline_height"
-    android:orientation="horizontal">
+    android:orientation="horizontal"
+    tools:background="@android:color/darker_gray">
 
     <RelativeLayout
 
         android:layout_width="0dp"
         android:layout_height="match_parent"
         android:layout_marginLeft="@dimen/listitem_threeline_horizontalpadding"
-        android:layout_weight="1">
+        android:layout_weight="1"
+        tools:background="@android:color/holo_orange_dark">
 
         <TextView
             android:id="@+id/statusUnread"
@@ -20,7 +22,9 @@
             android:layout_height="wrap_content"
             android:layout_alignParentRight="true"
             android:layout_alignParentTop="true"
-            android:layout_margin="16dp" />
+            android:layout_margin="16dp"
+            tools:text="Status unread"
+            tools:background="@android:color/white" />
 
         <TextView
             android:id="@+id/txtvItemname"
@@ -31,7 +35,9 @@
             android:layout_alignParentTop="true"
             android:layout_marginBottom="8dp"
             android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
-            android:layout_toLeftOf="@id/statusUnread" />
+            android:layout_toLeftOf="@id/statusUnread"
+            tools:text="Feed item name"
+            tools:background="@android:color/holo_green_dark" />
 
 
         <ImageView
@@ -43,7 +49,9 @@
             android:layout_marginRight="4dp"
             android:contentDescription="@string/in_queue_label"
             android:src="?attr/stat_playlist"
-            android:visibility="visible" />
+            android:visibility="visible"
+            tools:src="@drawable/ic_list_white_24dp"
+            tools:background="@android:color/holo_red_light" />
 
         <ImageView
             android:id="@+id/imgvType"
@@ -52,7 +60,9 @@
             android:layout_below="@id/txtvItemname"
             android:layout_marginRight="4dp"
             android:layout_toLeftOf="@+id/imgvInPlaylist"
-            tools:ignore="ContentDescription" />
+            tools:ignore="ContentDescription"
+            tools:src="@drawable/ic_hearing_white_18dp"
+            tools:background="@android:color/holo_red_light" />
 
         <TextView
             android:id="@+id/txtvLenSize"
@@ -60,7 +70,9 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
-            android:layout_below="@id/txtvItemname" />
+            android:layout_below="@id/txtvItemname"
+            tools:text="00:42:23"
+            tools:background="@android:color/holo_green_dark" />
 
         <ProgressBar
             android:id="@+id/pbar_episode_progress"
@@ -71,7 +83,8 @@
             android:layout_marginLeft="4dp"
             android:layout_marginRight="4dp"
             android:layout_toLeftOf="@id/imgvType"
-            android:layout_toRightOf="@id/txtvLenSize" />
+            android:layout_toRightOf="@id/txtvLenSize"
+            tools:background="@android:color/holo_blue_light" />
 
 
         <TextView
@@ -81,7 +94,9 @@
             android:layout_height="wrap_content"
             android:layout_below="@id/txtvItemname"
             android:layout_marginRight="4dp"
-            android:layout_toLeftOf="@id/imgvType" />
+            android:layout_toLeftOf="@id/imgvType"
+            tools:text="Jan 23"
+            tools:background="@android:color/holo_green_dark" />
     </RelativeLayout>
 
     <include layout="@layout/vertical_list_divider"/>
diff --git a/app/src/main/res/layout/gpodnet_podcast_list.xml b/app/src/main/res/layout/gpodnet_podcast_list.xml
index be9da61e2..05df70f31 100644
--- a/app/src/main/res/layout/gpodnet_podcast_list.xml
+++ b/app/src/main/res/layout/gpodnet_podcast_list.xml
@@ -35,7 +35,10 @@
         android:layout_margin="16dp"
         android:textAlignment="center"
         android:textSize="@dimen/text_size_small"
-        android:visibility="gone" />
+        android:visibility="gone"
+        tools:visibility="visible"
+        tools:text="Error message"
+        tools:background="@android:color/holo_red_light" />
 
     <Button
         android:id="@+id/butRetry"
@@ -45,5 +48,7 @@
         android:layout_centerHorizontal="true"
         android:layout_margin="16dp"
         android:text="@string/retry_label"
-        android:visibility="gone" />
-</RelativeLayout>
\ No newline at end of file
+        android:visibility="gone"
+        tools:visibility="visible"
+        tools:background="@android:color/holo_red_light" />
+</RelativeLayout>
diff --git a/app/src/main/res/layout/gpodnet_podcast_listitem.xml b/app/src/main/res/layout/gpodnet_podcast_listitem.xml
index 94a77dd7f..2ade8e478 100644
--- a/app/src/main/res/layout/gpodnet_podcast_listitem.xml
+++ b/app/src/main/res/layout/gpodnet_podcast_listitem.xml
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+   xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="@dimen/listitem_threeline_height">
+    android:layout_height="@dimen/listitem_threeline_height"
+    tools:background="@android:color/darker_gray">
 
     <ImageView
         android:id="@+id/imgvCover"
@@ -17,7 +19,9 @@
         android:adjustViewBounds="true"
         android:contentDescription="@string/cover_label"
         android:cropToPadding="true"
-        android:scaleType="fitXY" />
+        android:scaleType="fitXY"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark" />
 
     <TextView
         android:id="@+id/txtvTitle"
@@ -28,5 +32,7 @@
         android:layout_marginBottom="@dimen/listitem_threeline_verticalpadding"
         android:layout_marginRight="@dimen/listitem_threeline_horizontalpadding"
         android:layout_toRightOf="@id/imgvCover"
-        android:maxLines="1" />
-</RelativeLayout>
\ No newline at end of file
+        android:maxLines="1"
+        tools:text="Podcast title"
+        tools:background="@android:color/holo_green_dark" />
+</RelativeLayout>
diff --git a/app/src/main/res/layout/gpodnetauth_credentials.xml b/app/src/main/res/layout/gpodnetauth_credentials.xml
index 3e3c4e54f..8436570fc 100644
--- a/app/src/main/res/layout/gpodnetauth_credentials.xml
+++ b/app/src/main/res/layout/gpodnetauth_credentials.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:tools="http://schemas.android.com/tools"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent">
 
@@ -61,7 +62,9 @@
         android:maxLines="2"
         android:ellipsize="end"
         android:gravity="center"
-        android:layout_margin="16dp"/>
+        android:layout_margin="16dp"
+        tools:text="Error message"
+        tools:background="@android:color/holo_green_dark" />
 
     <ProgressBar
         android:id="@+id/progBarLogin"
diff --git a/app/src/main/res/layout/gpodnetauth_device.xml b/app/src/main/res/layout/gpodnetauth_device.xml
index 33d3d2718..38455f02c 100644
--- a/app/src/main/res/layout/gpodnetauth_device.xml
+++ b/app/src/main/res/layout/gpodnetauth_device.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:tools="http://schemas.android.com/tools"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent">
 
@@ -70,7 +71,8 @@
         android:textColor="@color/download_failed_red"
         android:layout_margin="16dp"
         android:textSize="@dimen/text_size_small"
-        />
+        tools:text="Error message"
+        tools:background="@android:color/holo_green_dark" />
 
     <ProgressBar
         android:id="@+id/progbarCreateDevice"
diff --git a/app/src/main/res/layout/itemdescription_listitem.xml b/app/src/main/res/layout/itemdescription_listitem.xml
index 418271aad..ca8f974bf 100644
--- a/app/src/main/res/layout/itemdescription_listitem.xml
+++ b/app/src/main/res/layout/itemdescription_listitem.xml
@@ -1,16 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical">
+    android:orientation="vertical"
+    tools:background="@android:color/holo_orange_light">
 
     <TextView
         android:id="@+id/txtvTitle"
         style="@style/AntennaPod.TextView.ListItemPrimaryTitle"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_margin="16dp" />
+        android:layout_margin="16dp"
+        tools:text="Feed item title"
+        tools:background="@android:color/holo_green_dark" />
 
     <TextView
         android:id="@+id/txtvDescription"
@@ -20,5 +24,7 @@
         android:layout_marginBottom="16dp"
         android:layout_marginLeft="16dp"
         android:layout_marginRight="16dp"
-        android:lines="3" />
-</LinearLayout>
\ No newline at end of file
+        android:lines="3"
+        tools:text="Feed item description"
+        tools:background="@android:color/holo_green_dark" />
+</LinearLayout>
diff --git a/app/src/main/res/layout/main.xml b/app/src/main/res/layout/main.xml
index 914d5fa6f..46be5bc5f 100644
--- a/app/src/main/res/layout/main.xml
+++ b/app/src/main/res/layout/main.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/drawer_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
@@ -14,7 +15,9 @@
             android:id="@+id/playerFragment"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_alignParentBottom="true" />
+            android:layout_alignParentBottom="true"
+            tools:layout_height="64dp"
+            tools:background="@android:color/holo_green_light" />
 
         <android.support.v7.widget.Toolbar
             android:id="@+id/toolbar"
@@ -22,14 +25,16 @@
             android:layout_height="wrap_content"
             android:layout_alignParentTop="true"
             android:background="?attr/colorPrimary"
-            android:minHeight="?attr/actionBarSize"/>
+            android:minHeight="?attr/actionBarSize"
+            tools:background="@android:color/holo_blue_dark" />
         <FrameLayout
             android:id="@+id/main_view"
             android:layout_width="match_parent"
             android:layout_height="0px"
             android:layout_above="@id/playerFragment"
             android:layout_below="@id/toolbar"
-            android:foreground="?android:windowContentOverlay" />
+            android:foreground="?android:windowContentOverlay"
+            tools:background="@android:color/holo_red_dark" />
 
     </RelativeLayout>
 
diff --git a/app/src/main/res/layout/nav_feedlistitem.xml b/app/src/main/res/layout/nav_feedlistitem.xml
index 4a7cb17de..e942d1b08 100644
--- a/app/src/main/res/layout/nav_feedlistitem.xml
+++ b/app/src/main/res/layout/nav_feedlistitem.xml
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:tools="http://schemas.android.com/tools"
                 android:orientation="vertical"
                 android:layout_width="match_parent"
-                android:layout_height="@dimen/listitem_iconwithtext_height">
+                android:layout_height="@dimen/listitem_iconwithtext_height"
+                tools:background="@android:color/darker_gray">
 
 
     <ImageView
@@ -18,7 +20,9 @@
         android:scaleType="fitXY"
         android:layout_marginTop="8dp"
         android:layout_marginBottom="8dp"
-        android:layout_marginLeft="@dimen/listitem_icon_leftpadding"/>
+        android:layout_marginLeft="@dimen/listitem_icon_leftpadding"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark"/>
 
 
     <TextView
@@ -36,5 +40,7 @@
         android:layout_marginBottom="@dimen/listitem_iconwithtext_textverticalpadding"
         android:layout_marginRight="@dimen/listitem_icon_rightpadding"
         android:layout_toRightOf="@id/imgvCover"
+        tools:text="Navigation feed item title"
+        tools:background="@android:color/holo_green_dark"
         />
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/nav_list.xml b/app/src/main/res/layout/nav_list.xml
index a22520b2d..8c46e456d 100644
--- a/app/src/main/res/layout/nav_list.xml
+++ b/app/src/main/res/layout/nav_list.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/nav_layout"
     android:layout_width="@dimen/drawer_width"
     android:layout_height="match_parent"
@@ -19,13 +20,16 @@
         android:dividerHeight="0dp"
         android:paddingBottom="@dimen/list_vertical_padding"
         android:paddingTop="@dimen/list_vertical_padding"
-        android:scrollbarStyle="outsideOverlay" />
+        android:scrollbarStyle="outsideOverlay"
+        tools:listitem="@layout/nav_listitem"
+        tools:background="@android:color/holo_purple" />
 
     <View
         android:layout_width="@dimen/drawer_width"
         android:layout_height="1dp"
         android:layout_centerVertical="true"
-        android:background="?android:attr/listDivider" />
+        android:background="?android:attr/listDivider"
+        tools:background="@android:color/holo_red_dark" />
 
     <LinearLayout
         android:id="@+id/nav_settings"
@@ -49,7 +53,9 @@
             android:cropToPadding="true"
             android:padding="8dp"
             android:scaleType="centerCrop"
-            android:src="?attr/ic_settings" />
+            android:src="?attr/ic_settings"
+            tools:src="@android:drawable/sym_def_app_icon"
+            tools:background="@android:color/holo_orange_dark" />
 
         <TextView
             android:layout_width="0dp"
@@ -60,7 +66,8 @@
             android:gravity="center_vertical"
             android:text="@string/settings_label"
             android:textColor="?android:attr/textColorPrimary"
-            android:textSize="@dimen/text_size_navdrawer" />
+            android:textSize="@dimen/text_size_navdrawer"
+            tools:background="@android:color/holo_green_light"/>
 
     </LinearLayout>
 
diff --git a/app/src/main/res/layout/nav_listitem.xml b/app/src/main/res/layout/nav_listitem.xml
index 2559c1cd6..bb5865ee6 100644
--- a/app/src/main/res/layout/nav_listitem.xml
+++ b/app/src/main/res/layout/nav_listitem.xml
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:tools="http://schemas.android.com/tools"
                 android:orientation="vertical"
                 android:layout_width="match_parent"
-                android:layout_height="@dimen/listitem_iconwithtext_height">
+                android:layout_height="@dimen/listitem_iconwithtext_height"
+                tools:background="@android:color/darker_gray">
 
     <ImageView
         android:id="@+id/imgvCover"
@@ -18,7 +20,9 @@
         android:padding="8dp"
         android:layout_marginLeft="@dimen/listitem_icon_leftpadding"
         android:layout_marginTop="8dp"
-        android:layout_marginBottom="8dp"/>
+        android:layout_marginBottom="8dp"
+        tools:src="@drawable/ic_new_releases_white_24dp"
+        tools:background="@android:color/holo_green_dark"/>
 
 
     <TextView
@@ -36,6 +40,8 @@
         android:layout_marginBottom="@dimen/listitem_iconwithtext_textverticalpadding"
         android:layout_marginRight="48dp"
         android:layout_toRightOf="@id/imgvCover"
+        tools:text="Navigation item title"
+        tools:background="@android:color/holo_green_dark"
         />
 
     <TextView
@@ -50,5 +56,7 @@
         android:layout_marginBottom="14dp"
         android:layout_marginRight="@dimen/listitem_icon_rightpadding"
         android:layout_alignParentRight="true"
-        android:layout_centerVertical="true"/>
-</RelativeLayout>
\ No newline at end of file
+        android:layout_centerVertical="true"
+        tools:text="23"
+        tools:background="@android:color/holo_green_dark"/>
+</RelativeLayout>
diff --git a/app/src/main/res/layout/nav_section_item.xml b/app/src/main/res/layout/nav_section_item.xml
index 3682ca811..77b2ff253 100644
--- a/app/src/main/res/layout/nav_section_item.xml
+++ b/app/src/main/res/layout/nav_section_item.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="24dp"
     android:background="@android:color/transparent"
@@ -10,5 +11,6 @@
         android:layout_width="match_parent"
         android:layout_height="1dp"
         android:layout_centerVertical="true"
-        android:background="?android:attr/listDivider" />
-</RelativeLayout>
\ No newline at end of file
+        android:background="?android:attr/listDivider"
+        tools:background="@android:color/holo_red_dark"/>
+</RelativeLayout>
diff --git a/app/src/main/res/layout/new_episodes_fragment.xml b/app/src/main/res/layout/new_episodes_fragment.xml
index c09a1cdf3..19db02f1d 100644
--- a/app/src/main/res/layout/new_episodes_fragment.xml
+++ b/app/src/main/res/layout/new_episodes_fragment.xml
@@ -2,6 +2,7 @@
 
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:dslv="http://schemas.android.com/apk/res-auto"
+             xmlns:tools="http://schemas.android.com/tools"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent">
@@ -25,7 +26,8 @@
             dslv:sort_enabled="false"
             dslv:track_drag_sort="false"
             dslv:float_background_color="?attr/dragview_float_background"
-            dslv:use_default_controller="true"/>
+            dslv:use_default_controller="true"
+            tools:background="@android:color/holo_green_dark"/>
 
     <TextView
         android:id="@id/android:empty"
@@ -41,6 +43,10 @@
         android:layout_height="wrap_content"
         android:layout_gravity="center"
         android:indeterminateOnly="true"
-        android:visibility="gone"/>
+        android:visibility="gone"
+        tools:visibility="visible"
+        tools:layout_width="match_parent"
+        tools:layout_height="64dp"
+        tools:background="@android:color/holo_red_light"/>
 
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/new_episodes_listitem.xml b/app/src/main/res/layout/new_episodes_listitem.xml
index 7312f18a2..43ada14b0 100644
--- a/app/src/main/res/layout/new_episodes_listitem.xml
+++ b/app/src/main/res/layout/new_episodes_listitem.xml
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/listitem_threeline_height"
-    android:orientation="horizontal">
+    android:orientation="horizontal"
+    tools:background="@android:color/darker_gray">
 
     <ImageView
         android:id="@+id/imgvImage"
@@ -14,7 +16,9 @@
         android:layout_marginLeft="@dimen/listitem_threeline_horizontalpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
         android:contentDescription="@string/cover_label"
-        android:scaleType="centerCrop" />
+        android:scaleType="centerCrop"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark" />
 
     <RelativeLayout
         android:layout_width="0dp"
@@ -23,7 +27,8 @@
         android:layout_marginLeft="@dimen/listitem_threeline_textleftpadding"
         android:layout_marginRight="@dimen/listitem_threeline_textrightpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
-        android:layout_weight="1">
+        android:layout_weight="1"
+        tools:background="@android:color/white" >
 
 
         <TextView
@@ -41,7 +46,9 @@
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
-            android:layout_toLeftOf="@id/statusUnread" />
+            android:layout_toLeftOf="@id/statusUnread"
+            tools:text="Episode title"
+            tools:background="@android:color/holo_green_dark" />
 
         <RelativeLayout
             android:id="@+id/bottom_bar"
@@ -50,7 +57,8 @@
             android:layout_alignParentBottom="true"
             android:layout_alignParentLeft="true"
             android:layout_alignParentRight="true"
-            android:layout_marginTop="16dp">
+            android:layout_marginTop="16dp"
+            tools:background="@android:color/holo_red_light" >
 
             <ImageView
                 android:id="@id/imgvInPlaylist"
@@ -60,7 +68,9 @@
                 android:layout_marginLeft="8dp"
                 android:layout_marginRight="4dp"
                 android:contentDescription="@string/in_queue_label"
-                android:src="?attr/stat_playlist" />
+                android:src="?attr/stat_playlist"
+                tools:src="@drawable/ic_list_grey600_24dp"
+                tools:background="@android:color/black" />
 
             <ProgressBar
                 android:id="@+id/pbar_download_progress"
@@ -78,7 +88,9 @@
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
                 android:layout_alignParentLeft="true"
-                android:layout_toLeftOf="@id/imgvInPlaylist" />
+                android:layout_toLeftOf="@id/imgvInPlaylist"
+                tools:text="00:42:23"
+                tools:background="@android:color/holo_blue_dark" />
 
             <TextView
                 android:id="@+id/txtvPublished"
@@ -87,7 +99,9 @@
                 android:layout_height="wrap_content"
                 android:layout_alignParentTop="true"
                 android:layout_toLeftOf="@id/imgvInPlaylist"
-                android:ellipsize="end" />
+                android:ellipsize="end"
+                tools:text="Jan 23"
+                tools:background="@android:color/holo_green_dark" />
 
         </RelativeLayout>
     </RelativeLayout>
diff --git a/app/src/main/res/layout/onlinefeedview_header.xml b/app/src/main/res/layout/onlinefeedview_header.xml
index 66d3039e4..491d955fb 100644
--- a/app/src/main/res/layout/onlinefeedview_header.xml
+++ b/app/src/main/res/layout/onlinefeedview_header.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
@@ -13,7 +14,9 @@
         android:layout_marginLeft="16dp"
         android:layout_marginRight="16dp"
         android:layout_marginTop="16dp"
-        android:contentDescription="@string/cover_label" />
+        android:contentDescription="@string/cover_label"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark" />
 
     <TextView
         android:id="@+id/txtvTitle"
@@ -27,7 +30,9 @@
         android:layout_toRightOf="@id/imgvCover"
         android:ellipsize="end"
         android:gravity="center_vertical"
-        android:maxLines="2" />
+        android:maxLines="2"
+        tools:text="Online feed title"
+        tools:background="@android:color/holo_green_dark" />
 
     <TextView
         android:id="@+id/txtvAuthor"
@@ -40,7 +45,9 @@
         android:ellipsize="end"
         android:lines="1"
         android:textColor="?android:attr/textColorSecondary"
-        android:textSize="@dimen/text_size_small" />
+        android:textSize="@dimen/text_size_small"
+        tools:text="Online feed author"
+        tools:background="@android:color/holo_green_dark" />
 
     <LinearLayout
         android:layout_width="match_parent"
@@ -75,7 +82,9 @@
             android:layout_marginLeft="16dp"
             android:layout_marginRight="16dp"
             android:textColor="?android:attr/textColorSecondary"
-            android:textSize="@dimen/text_size_small" />
+            android:textSize="@dimen/text_size_small"
+            tools:text="@string/design_time_lorem_ipsum"
+            tools:background="@android:color/holo_green_dark"/>
 
     </LinearLayout>
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/opml_import.xml b/app/src/main/res/layout/opml_import.xml
index 919e30551..3e45a0400 100644
--- a/app/src/main/res/layout/opml_import.xml
+++ b/app/src/main/res/layout/opml_import.xml
@@ -1,20 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical" >
+    android:orientation="vertical"
+    tools:background="@android:color/darker_gray">
 
     <TextView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_margin="8dp"
-        android:text="@string/opml_import_explanation" />
+        android:text="@string/opml_import_explanation"
+        tools:background="@android:color/holo_green_dark" />
 
     <TextView
         android:id="@+id/txtvPath"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_margin="8dp" />
+        android:layout_margin="8dp"
+        tools:text="Path"
+        tools:background="@android:color/holo_green_dark" />
 
     <Button
         android:id="@+id/butStartImport"
diff --git a/app/src/main/res/layout/queue_listitem.xml b/app/src/main/res/layout/queue_listitem.xml
index 68fb53c2c..74c6ed785 100644
--- a/app/src/main/res/layout/queue_listitem.xml
+++ b/app/src/main/res/layout/queue_listitem.xml
@@ -4,7 +4,8 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/listitem_threeline_height"
-    android:orientation="horizontal">
+    android:orientation="horizontal"
+    tools:background="@android:color/darker_gray" >
 
     <ImageView
         android:id="@+id/drag_handle"
@@ -13,7 +14,9 @@
         android:layout_margin="8dp"
         android:contentDescription="@string/drag_handle_content_description"
         android:scaleType="center"
-        android:src="?attr/dragview_background" />
+        android:src="?attr/dragview_background"
+        tools:src="@drawable/ic_drag_handle"
+        tools:background="@android:color/holo_green_dark" />
 
     <ImageView
         android:id="@+id/imgvImage"
@@ -23,7 +26,9 @@
         android:layout_marginBottom="@dimen/listitem_threeline_verticalpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
         android:contentDescription="@string/cover_label"
-        android:scaleType="centerCrop" />
+        android:scaleType="centerCrop"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark"/>
 
     <RelativeLayout
         android:layout_width="0dp"
@@ -32,7 +37,8 @@
         android:layout_marginLeft="@dimen/listitem_threeline_textleftpadding"
         android:layout_marginRight="@dimen/listitem_threeline_textrightpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
-        android:layout_weight="1">
+        android:layout_weight="1"
+        tools:background="@android:color/holo_red_dark">
 
         <TextView
             android:id="@+id/txtvTitle"
@@ -41,7 +47,9 @@
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
             android:layout_alignParentRight="true"
-            android:layout_alignParentTop="true" />
+            android:layout_alignParentTop="true"
+            android:text="Queue item title"
+            tools:background="@android:color/holo_blue_light" />
 
         <RelativeLayout
             android:id="@+id/bottom_bar"
@@ -57,7 +65,9 @@
                 style="@style/AntennaPod.TextView.ListItemSecondaryTitle"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_alignParentLeft="true" />
+                android:layout_alignParentLeft="true"
+                android:text="00:42:23"
+                tools:background="@android:color/holo_blue_light" />
 
             <ProgressBar
                 android:id="@+id/pbar_download_progress"
@@ -67,7 +77,8 @@
                 android:layout_alignParentRight="true"
                 android:layout_marginLeft="8dp"
                 android:layout_toRightOf="@id/txtvPosition"
-                android:max="100" />
+                android:max="100"
+                tools:background="@android:color/holo_blue_light" />
 
         </RelativeLayout>
     </RelativeLayout>
diff --git a/app/src/main/res/layout/searchlist_item.xml b/app/src/main/res/layout/searchlist_item.xml
index ff4d490e9..a8b8e7b62 100644
--- a/app/src/main/res/layout/searchlist_item.xml
+++ b/app/src/main/res/layout/searchlist_item.xml
@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="@dimen/listitem_threeline_height">
+                xmlns:tools="http://schemas.android.com/tools"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/listitem_threeline_height"
+                tools:background="@android:color/darker_gray">
 
     <ImageView
         android:id="@+id/imgvFeedimage"
@@ -13,7 +15,9 @@
         android:layout_marginLeft="@dimen/listitem_threeline_horizontalpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
         android:contentDescription="@string/cover_label"
-        android:scaleType="centerCrop" />
+        android:scaleType="centerCrop"
+        tools:src="@drawable/ic_stat_antenna_default"
+        tools:background="@android:color/holo_green_dark"/>
 
     <LinearLayout
         android:layout_width="wrap_content"
@@ -22,21 +26,26 @@
         android:layout_marginRight="@dimen/listitem_threeline_verticalpadding"
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
         android:layout_toRightOf="@id/imgvFeedimage"
-        android:orientation="vertical">
+        android:orientation="vertical"
+        tools:background="@android:color/holo_red_dark">
 
         <TextView
             android:id="@+id/txtvTitle"
             style="@style/AntennaPod.TextView.ListItemPrimaryTitle"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_marginBottom="8dp" />
+            android:layout_marginBottom="8dp"
+            tools:text="Search item title"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvSubtitle"
             style="@style/AntennaPod.TextView.ListItemSecondaryTitle"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:lines="1" />
+            android:lines="1"
+            tools:text="Search item subtitle"
+            tools:background="@android:color/holo_blue_light"/>
     </LinearLayout>
 
 </RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/secondary_action.xml b/app/src/main/res/layout/secondary_action.xml
index eb1871abc..b2aea03f8 100644
--- a/app/src/main/res/layout/secondary_action.xml
+++ b/app/src/main/res/layout/secondary_action.xml
@@ -8,4 +8,6 @@
     android:clickable="false"
     android:focusable="false"
     android:focusableInTouchMode="false"
-    tools:ignore="ContentDescription" />
\ No newline at end of file
+    tools:ignore="ContentDescription"
+    tools:src="@drawable/ic_play_arrow_grey600_36dp"
+    tools:background="@android:color/holo_green_dark" />
diff --git a/app/src/main/res/layout/simplechapter_item.xml b/app/src/main/res/layout/simplechapter_item.xml
index b7f4cdb18..fae6bac8c 100644
--- a/app/src/main/res/layout/simplechapter_item.xml
+++ b/app/src/main/res/layout/simplechapter_item.xml
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="@dimen/listitem_threeline_height"
-    android:orientation="horizontal">
+    android:orientation="horizontal"
+    tools:background="@android:color/darker_gray">
 
     <TextView
         android:id="@+id/txtvStart"
@@ -11,7 +13,9 @@
         android:layout_height="match_parent"
         android:layout_gravity="center_vertical"
         android:layout_marginLeft="@dimen/listitem_threeline_horizontalpadding"
-        android:gravity="center_vertical" />
+        android:gravity="center_vertical"
+        tools:text="Start"
+        tools:background="@android:color/holo_green_dark" />
 
     <LinearLayout
         android:layout_width="0dp"
@@ -22,7 +26,8 @@
         android:layout_marginTop="@dimen/listitem_threeline_verticalpadding"
         android:layout_weight="1"
         android:gravity="center_vertical"
-        android:orientation="vertical">
+        android:orientation="vertical"
+        tools:background="@android:color/holo_red_dark">
 
         <TextView
             android:id="@+id/txtvTitle"
@@ -32,7 +37,9 @@
             android:ellipsize="end"
             android:maxLines="2"
             android:textColor="?android:attr/textColorPrimary"
-            android:textSize="16sp" />
+            android:textSize="16sp"
+            tools:text="Chapter title"
+            tools:background="@android:color/holo_green_dark" />
 
         <TextView
             android:id="@+id/txtvLink"
@@ -41,7 +48,10 @@
             android:focusable="false"
             android:focusableInTouchMode="false"
             android:maxLines="1"
-            android:visibility="gone" />
+            android:visibility="gone"
+            tools:visibility="visible"
+            tools:text="Link"
+            tools:background="@android:color/holo_green_dark" />
 
     </LinearLayout>
 
@@ -56,6 +66,8 @@
         android:contentDescription="@string/chapters_label"
         android:focusable="false"
         android:focusableInTouchMode="false"
-        android:src="?attr/av_play" />
+        android:src="?attr/av_play"
+        tools:src="@drawable/ic_play_arrow_white_36dp"
+        tools:background="@android:color/holo_green_dark" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/time_dialog.xml b/app/src/main/res/layout/time_dialog.xml
index 95cc9a5a7..a42f87781 100644
--- a/app/src/main/res/layout/time_dialog.xml
+++ b/app/src/main/res/layout/time_dialog.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical" >
@@ -42,13 +43,15 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginRight="8dp"
-            android:layout_weight="1" />
+            android:layout_weight="1"
+            tools:text="Confirm" />
 
         <Button
             android:id="@+id/butCancel"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_weight="1" />
+            android:layout_weight="1"
+            tools:text="Cancel" />
     </LinearLayout>
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/vertical_list_divider.xml b/app/src/main/res/layout/vertical_list_divider.xml
index 00b1752f6..61739cbcd 100644
--- a/app/src/main/res/layout/vertical_list_divider.xml
+++ b/app/src/main/res/layout/vertical_list_divider.xml
@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <View xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="1dp"
     android:layout_height="match_parent"
     android:layout_marginBottom="16dp"
     android:layout_marginTop="16dp"
-    android:background="?android:attr/listDivider"/>
\ No newline at end of file
+    android:background="?android:attr/listDivider"
+    tools:background="@android:color/holo_red_dark" />
diff --git a/app/src/main/res/values/design_time_attributes.xml b/app/src/main/res/values/design_time_attributes.xml
new file mode 100644
index 000000000..bdd03ec38
--- /dev/null
+++ b/app/src/main/res/values/design_time_attributes.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources
+        xmlns:tools="http://schemas.android.com/tools"
+        tools:ignore="MissingTranslation">
+
+    <!--
+    DESIGN TIME ATTRIBUTES
+    Put too long strings to embed in layout files here.
+    -->
+
+    <string name="design_time_lorem_ipsum">
+        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus ullamcorper
+        tempor metus, at varius tellus dignissim et. Fusce quis justo sollicitudin,
+        feugiat mi in, accumsan erat. Fusce tempor, sapien ut luctus scelerisque,
+        lectus nisi hendrerit odio, eget mattis lorem massa id eros. Integer consequat
+        tellus eu rhoncus pellentesque. Quisque et leo faucibus, aliquam nisi ut,
+        feugiat lectus.
+    </string>
+    <string name="design_time_downloaded_log_failure_reason">
+        IO Error: failed to connect to feeds.example.com/100.100.100.100
+        (port 80) after 3000ms: isConnected failed: ECONNREFUSED (Connection refused)
+    </string>
+
+</resources>
-- 
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