Merge pull request #2904 from qkolj/back-button

Add configurable behavior of the back button

3 files changed, 60 insertions, 0 deletions

diff --git a/core/src/main/java/de/danoeh/antennapod/core/preferences/UserPreferences.java b/core/src/main/java/de/danoeh/antennapod/core/preferences/UserPreferences.java
index e6b5f9e1b..c44999c88 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/preferences/UserPreferences.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/preferences/UserPreferences.java
@@ -52,6 +52,8 @@ public class UserPreferences {
     public static final String PREF_COMPACT_NOTIFICATION_BUTTONS = "prefCompactNotificationButtons";
     public static final String PREF_LOCKSCREEN_BACKGROUND = "prefLockscreenBackground";
     private static final String PREF_SHOW_DOWNLOAD_REPORT = "prefShowDownloadReport";
+    public static final String PREF_BACK_BUTTON_BEHAVIOR = "prefBackButtonBehavior";
+    private static final String PREF_BACK_BUTTON_GO_TO_PAGE = "prefBackButtonGoToPage";
 
     // Queue
     private static final String PREF_QUEUE_ADD_TO_FRONT = "prefQueueAddToFront";
@@ -809,4 +811,29 @@ public class UserPreferences {
     public enum VideoBackgroundBehavior {
         STOP, PICTURE_IN_PICTURE, CONTINUE_PLAYING
     }
+
+    public enum BackButtonBehavior {
+        DEFAULT, OPEN_DRAWER, DOUBLE_TAP, SHOW_PROMPT, GO_TO_PAGE
+    }
+
+    public static BackButtonBehavior getBackButtonBehavior() {
+        switch (prefs.getString(PREF_BACK_BUTTON_BEHAVIOR, "default")) {
+            case "default": return BackButtonBehavior.DEFAULT;
+            case "drawer": return BackButtonBehavior.OPEN_DRAWER;
+            case "doubletap": return BackButtonBehavior.DOUBLE_TAP;
+            case "prompt": return BackButtonBehavior.SHOW_PROMPT;
+            case "page": return BackButtonBehavior.GO_TO_PAGE;
+            default: return BackButtonBehavior.DEFAULT;
+        }
+    }
+
+    public static String getBackButtonGoToPage() {
+        return prefs.getString(PREF_BACK_BUTTON_GO_TO_PAGE, "QueueFragment");
+    }
+
+    public static void setBackButtonGoToPage(String tag) {
+        prefs.edit()
+                .putString(PREF_BACK_BUTTON_GO_TO_PAGE, tag)
+                .apply();
+    }
 }
diff --git a/core/src/main/res/values/arrays.xml b/core/src/main/res/values/arrays.xml
index 7e2fed054..3a618b8c2 100644
--- a/core/src/main/res/values/arrays.xml
+++ b/core/src/main/res/values/arrays.xml
@@ -277,4 +277,26 @@
         <item>@string/select_all_above</item>
         <item>@string/select_all_below</item>
     </string-array>
+
+    <string-array name="back_button_behavior_options">
+        <item>@string/back_button_default</item>
+        <item>@string/back_button_go_to_page</item>
+        <item>@string/back_button_open_drawer</item>
+        <item>@string/back_button_double_tap</item>
+        <item>@string/back_button_show_prompt</item>
+    </string-array>
+
+    <string-array name="back_button_behavior_values">
+        <item>default</item>
+        <item>page</item>
+        <item>drawer</item>
+        <item>doubletap</item>
+        <item>prompt</item>
+    </string-array>
+
+    <string-array name="back_button_go_to_pages">
+        <item>@string/queue_label</item>
+        <item>@string/episodes_label</item>
+        <item>@string/subscriptions_label</item>
+    </string-array>
 </resources>
diff --git a/core/src/main/res/values/strings.xml b/core/src/main/res/values/strings.xml
index ad91ecc76..1a3c2373c 100644
--- a/core/src/main/res/values/strings.xml
+++ b/core/src/main/res/values/strings.xml
@@ -470,6 +470,17 @@
     <string name="pref_videoBehavior_sum">Behavior when leaving video playback</string>
     <string name="stop_playback">Stop playback</string>
     <string name="continue_playback">Continue audio playback</string>
+    <string name="behavior">Behavior</string>
+    <string name="pref_back_button_behavior_title">Back Button Behavior</string>
+    <string name="pref_back_button_behavior_sum">Change behavior of the back button.</string>
+    <string name="back_button_default">Default</string>
+    <string name="back_button_open_drawer">Open navigation drawer</string>
+    <string name="back_button_double_tap">Double tap to exit</string>
+    <string name="back_button_show_prompt">Confirm to exit</string>
+    <string name="close_prompt">Are you sure you want to close AntennaPod?</string>
+    <string name="double_tap_toast">Tap back button again to exit</string>
+    <string name="back_button_go_to_page">Go to page</string>
+    <string name="back_button_go_to_page_title">Select page</string>
 
     <!-- Auto-Flattr dialog -->
     <string name="auto_flattr_enable">Enable automatic flattring</string>