Extract data folder dialog layout

This is in preparation to add a progress bar displaying the amount of
used/free space in the dialog (#3049). Since we'll need a custom view to
do it, this extracts the layout beforehand.

1 files changed, 5 insertions, 69 deletions

diff --git a/app/src/main/java/de/danoeh/antennapod/dialog/ChooseDataFolderDialog.java b/app/src/main/java/de/danoeh/antennapod/dialog/ChooseDataFolderDialog.java
index d5d2398dd..c185a5557 100644
--- a/app/src/main/java/de/danoeh/antennapod/dialog/ChooseDataFolderDialog.java
+++ b/app/src/main/java/de/danoeh/antennapod/dialog/ChooseDataFolderDialog.java
@@ -1,21 +1,11 @@
 package de.danoeh.antennapod.dialog;
 
 import android.content.Context;
-import android.os.Build;
-import android.support.v4.content.ContextCompat;
-import android.text.Html;
 
 import com.afollestad.materialdialogs.MaterialDialog;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
 import de.danoeh.antennapod.R;
-import de.danoeh.antennapod.core.preferences.UserPreferences;
-import de.danoeh.antennapod.core.util.Converter;
-import de.danoeh.antennapod.core.util.StorageUtils;
+import de.danoeh.antennapod.adapter.DataFolderAdapter;
 
 public class ChooseDataFolderDialog {
 
@@ -32,12 +22,9 @@ public class ChooseDataFolderDialog {
     private ChooseDataFolderDialog() {}
 
     public static void showDialog(final Context context, RunnableWithString handlerFunc) {
-        File dataFolder = UserPreferences.getDataFolder(null);
-        HashMap<String, List<String>> options = getStorageOptions(context);
-        final List<String> entries = options.get("entries");
-        final List<String> folders = options.get("folders");
+        DataFolderAdapter adapter = new DataFolderAdapter(context, handlerFunc);
 
-        if (dataFolder == null || entries.isEmpty()) {
+        if (adapter.getItemCount() == 0) {
             new MaterialDialog.Builder(context)
                     .title(R.string.error_label)
                     .content(R.string.external_storage_error_msg)
@@ -46,66 +33,15 @@ public class ChooseDataFolderDialog {
             return;
         }
 
-        int selectedIndex = folders.indexOf(dataFolder.getAbsolutePath());
         MaterialDialog dialog = new MaterialDialog.Builder(context)
                 .title(R.string.choose_data_directory)
                 .content(R.string.choose_data_directory_message)
-                .items(entries)
-                .itemsCallbackSingleChoice(selectedIndex, (dialog1, itemView, which, text) -> {
-                    String folder = folders.get(which);
-                    handlerFunc.run(folder);
-                    return true;
-                })
+                .adapter(adapter, null)
                 .negativeText(R.string.cancel_label)
                 .cancelable(true)
                 .build();
+        adapter.setDialog(dialog);
         dialog.show();
     }
 
-    private static HashMap<String, List<String>> getStorageOptions(Context context) {
-        File[] mediaDirs = ContextCompat.getExternalFilesDirs(context, null);
-        final List<String> folders = new ArrayList<>(mediaDirs.length);
-        final List<String> entries = new ArrayList<>(mediaDirs.length);
-        for (File dir : mediaDirs) {
-            if (isNotWritable(dir)) continue;
-
-            String path = dir.getAbsolutePath();
-            String location = getStorageLocation(path);
-            String availableSpace = getAvailableSpace(path);
-            folders.add(path);
-            entries.add(storageEntry(location, availableSpace));
-        }
-        return new HashMap<String, List<String>>() {{
-            put("folders", folders);
-            put("entries", entries);
-        }};
-    }
-
-    private static String storageEntry(String location, String availableSpace) {
-        String html = String.format("<small>%1$s [%2$s]</small>", location, availableSpace);
-        return fromHtmlVersioned(html).toString();
-    }
-
-    private static String getAvailableSpace(String path) {
-        long spaceAvailable = StorageUtils.getFreeSpaceAvailable(path);
-        return Converter.byteToString(spaceAvailable);
-    }
-
-    private static String getStorageLocation(String path) {
-        int prefixIndex = path.indexOf("Android");
-        return (prefixIndex > 0) ? path.substring(0, prefixIndex) : path;
-    }
-
-    private static boolean isNotWritable(File dir) {
-        return dir == null || !dir.exists() || !dir.canRead() || !dir.canWrite();
-    }
-
-    @SuppressWarnings("deprecation")
-    private static CharSequence fromHtmlVersioned(final String html) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
-            return Html.fromHtml(html);
-        }
-        return Html.fromHtml(html, Html.FROM_HTML_MODE_LEGACY);
-    }
-
 }
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