Use storage access framework for backup files

app/build.gradle

@@ -19,8 +19,8 @@ android {
     defaultConfig {
         testApplicationId "org.tasks.test"
         applicationId "org.tasks"
-        versionCode 545
+        versionCode 546
-        versionName "6.3.1"
+        versionName "6.4"
         targetSdkVersion 28
         minSdkVersion 16
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

app/src/main/java/com/todoroo/astrid/backup/TasksXmlImporter.java

@@ -8,14 +8,14 @@ package com.todoroo.astrid.backup;
 import android.app.Activity;
 import android.app.ProgressDialog;
 import android.content.res.Resources;
+import android.net.Uri;
 import android.os.Handler;
 import android.text.TextUtils;
+
 import com.todoroo.andlib.utility.DialogUtilities;
 import com.todoroo.astrid.dao.TaskDao;
 import com.todoroo.astrid.data.Task;
-import java.io.FileReader;
+
-import java.io.IOException;
-import javax.inject.Inject;
 import org.tasks.LocalBroadcastManager;
 import org.tasks.R;
 import org.tasks.backup.XmlReader;
@@ -35,8 +35,18 @@ import org.tasks.dialogs.DialogBuilder;
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlPullParserFactory;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.StringReader;
+
+import javax.inject.Inject;
+
 import timber.log.Timber;
 
+import static org.tasks.files.FileHelper.fromUri;
+
 public class TasksXmlImporter {
 
   private static final String FORMAT2 = "2"; // $NON-NLS-1$
@@ -57,7 +67,7 @@ public class TasksXmlImporter {
   private int skipCount = 0;
   private int errorCount = 0;
   private ProgressDialog progressDialog;
-  private String input;
+  private Uri input;
 
   @Inject
   public TasksXmlImporter(
@@ -85,7 +95,7 @@ public class TasksXmlImporter {
     handler.post(() -> progressDialog.setMessage(message));
   }
 
-  public void importTasks(Activity activity, String input, ProgressDialog progressDialog) {
+  public void importTasks(Activity activity, Uri input, ProgressDialog progressDialog) {
     this.activity = activity;
     this.input = input;
     this.progressDialog = progressDialog;
@@ -110,7 +120,9 @@ public class TasksXmlImporter {
   private void performImport() throws IOException, XmlPullParserException {
     XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
     XmlPullParser xpp = factory.newPullParser();
-    xpp.setInput(new FileReader(input));
+    InputStream inputStream = fromUri(activity, input);
+    InputStreamReader reader = new InputStreamReader(inputStream);
+    xpp.setInput(reader);
 
     try {
       while (xpp.next() != XmlPullParser.END_DOCUMENT) {
@@ -135,6 +147,8 @@ public class TasksXmlImporter {
         }
       }
     } finally {
+      reader.close();
+      inputStream.close();
       localBroadcastManager.broadcastRefresh();
       handler.post(
           () -> {
@@ -154,7 +168,7 @@ public class TasksXmlImporter {
         .setMessage(
             activity.getString(
                 R.string.import_summary_message,
-                input,
+                "",
                 r.getQuantityString(R.plurals.Ntasks, taskCount, taskCount),
                 r.getQuantityString(R.plurals.Ntasks, importCount, importCount),
                 r.getQuantityString(R.plurals.Ntasks, skipCount, skipCount),

app/src/main/java/com/todoroo/astrid/service/StartupService.java

@@ -9,6 +9,8 @@ import static com.google.common.base.Strings.isNullOrEmpty;
 
 import android.content.Context;
 import android.os.Environment;
+
+import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableListMultimap;
 import com.google.common.collect.ListMultimap;
@@ -46,6 +48,7 @@ public class StartupService {
   private static final int V5_3_0 = 491;
   private static final int V6_0_beta_1 = 522;
   private static final int V6_0_beta_2 = 523;
+  private static final int V6_4 = 546;
 
   private final Database database;
   private final Preferences preferences;
@@ -122,6 +125,9 @@ public class StartupService {
         if (from < V6_0_beta_2) {
           migrateGoogleTaskAccount();
         }
+        if (from < V6_4) {
+          migrateUris();
+        }
         tracker.reportEvent(Tracking.Events.UPGRADE, Integer.toString(from));
       }
       preferences.setCurrentVersion(to);
@@ -191,6 +197,22 @@ public class StartupService {
     }
   }
 
+  private void migrateUris() {
+    String backupDirectory = preferences.getStringValue(R.string.p_backup_dir);
+    if (!Strings.isNullOrEmpty(backupDirectory)) {
+      File file = new File(backupDirectory);
+      try {
+        if (file.canWrite()) {
+          preferences.setUri(R.string.p_backup_dir, file.toURI());
+        } else {
+          preferences.remove(R.string.p_backup_dir);
+        }
+      } catch (SecurityException ignored) {
+        preferences.remove(R.string.p_backup_dir);
+      }
+    }
+  }
+
   private String migrate(String input) {
     return input
         .replaceAll(

app/src/main/java/org/tasks/backup/TasksJsonExporter.java

@@ -1,28 +1,19 @@
 package org.tasks.backup;
 
-import static org.tasks.date.DateTimeUtils.newDateTime;
-
 import android.app.Activity;
 import android.app.ProgressDialog;
 import android.content.Context;
+import android.net.Uri;
 import android.os.Handler;
-import androidx.annotation.Nullable;
 import android.widget.Toast;
+
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.todoroo.andlib.utility.DialogUtilities;
 import com.todoroo.astrid.backup.BackupConstants;
 import com.todoroo.astrid.dao.TaskDao;
 import com.todoroo.astrid.data.Task;
-import java.io.File;
+
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStreamWriter;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import javax.inject.Inject;
 import org.tasks.BuildConfig;
 import org.tasks.R;
 import org.tasks.data.AlarmDao;
@@ -35,9 +26,24 @@ import org.tasks.data.TagDao;
 import org.tasks.data.TagDataDao;
 import org.tasks.data.TaskAttachmentDao;
 import org.tasks.data.UserActivityDao;
+import org.tasks.files.FileHelper;
 import org.tasks.preferences.Preferences;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.inject.Inject;
+
+import androidx.annotation.Nullable;
 import timber.log.Timber;
 
+import static org.tasks.date.DateTimeUtils.newDateTime;
+
 public class TasksJsonExporter {
 
   // --- public interface
@@ -59,7 +65,7 @@ public class TasksJsonExporter {
   private int exportCount = 0;
   private ProgressDialog progressDialog;
   private Handler handler;
-  private File backupDirectory;
+  private Uri backupDirectory;
   private String latestSetVersionName;
 
   @Inject
@@ -128,16 +134,18 @@ public class TasksJsonExporter {
 
   private void runBackup(ExportType exportType) {
     try {
-      String output = setupFile(backupDirectory, exportType);
+      String filename = getFileName(exportType);
-
       List<Task> tasks = taskDao.getAll();
 
       if (tasks.size() > 0) {
-        doTasksExport(output, tasks);
+        Uri uri = FileHelper.newFile(context, backupDirectory, "application/json", filename);
+        OutputStream os = context.getContentResolver().openOutputStream(uri);
+        doTasksExport(os, tasks);
+        os.close();
       }
 
       if (exportType == ExportType.EXPORT_TYPE_MANUAL) {
-        onFinishExport(output);
+        onFinishExport(filename);
       }
     } catch (IOException e) {
       Timber.e(e);
@@ -153,7 +161,7 @@ public class TasksJsonExporter {
     }
   }
 
-  private void doTasksExport(String output, List<Task> tasks) throws IOException {
+  private void doTasksExport(OutputStream os, List<Task> tasks) throws IOException {
 
     List<BackupContainer.TaskBackup> taskBackups = new ArrayList<>();
 
@@ -186,14 +194,10 @@ public class TasksJsonExporter {
             caldavDao.getAccounts(),
             caldavDao.getCalendars()));
 
-    File file = new File(output);
+    OutputStreamWriter out = new OutputStreamWriter(os);
-    file.createNewFile();
-    FileOutputStream fos = new FileOutputStream(file);
-    OutputStreamWriter out = new OutputStreamWriter(fos);
     Gson gson = BuildConfig.DEBUG ? new GsonBuilder().setPrettyPrinting().create() : new Gson();
     out.write(gson.toJson(data));
     out.close();
-    fos.close();
     exportCount = taskBackups.size();
   }
 
@@ -217,38 +221,16 @@ public class TasksJsonExporter {
         });
   }
 
-  /**
+  private String getFileName(ExportType type) {
-   * Creates directories if necessary and returns fully qualified file
+    switch (type) {
-   *
-   * @return output file name
-   */
-  private String setupFile(File directory, ExportType exportType) throws IOException {
-    if (directory != null) {
-      // Check for /sdcard/astrid directory. If it doesn't exist, make it.
-      if (directory.exists() || directory.mkdir()) {
-        String fileName;
-        switch (exportType) {
       case EXPORT_TYPE_SERVICE:
-            fileName = String.format(BackupConstants.BACKUP_FILE_NAME, getDateForExport());
+        return String.format(BackupConstants.BACKUP_FILE_NAME, getDateForExport());
-            break;
       case EXPORT_TYPE_MANUAL:
-            fileName = String.format(BackupConstants.EXPORT_FILE_NAME, getDateForExport());
+        return String.format(BackupConstants.EXPORT_FILE_NAME, getDateForExport());
-            break;
       case EXPORT_TYPE_ON_UPGRADE:
-            fileName = String.format(BackupConstants.UPGRADE_FILE_NAME, latestSetVersionName);
+        return String.format(BackupConstants.UPGRADE_FILE_NAME, latestSetVersionName);
-            break;
       default:
-            throw new IllegalArgumentException("Invalid export type"); // $NON-NLS-1$
+        throw new UnsupportedOperationException("Unhandled export type");
-        }
-        return directory.getAbsolutePath() + File.separator + fileName;
-      } else {
-        // Unable to make the /sdcard/astrid directory.
-        throw new IOException(
-            context.getString(R.string.DLG_error_sdcard, directory.getAbsolutePath()));
-      }
-    } else {
-      // Unable to access the sdcard because it's not in the mounted state.
-      throw new IOException(context.getString(R.string.DLG_error_sdcard_general));
     }
   }
 

app/src/main/java/org/tasks/backup/TasksJsonImporter.java

@@ -3,17 +3,16 @@ package org.tasks.backup;
 import android.app.Activity;
 import android.app.ProgressDialog;
 import android.content.res.Resources;
+import android.net.Uri;
 import android.os.Handler;
-import com.google.common.io.CharStreams;
+
 import com.google.gson.Gson;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 import com.todoroo.andlib.utility.DialogUtilities;
 import com.todoroo.astrid.dao.TaskDao;
 import com.todoroo.astrid.data.Task;
-import java.io.FileReader;
+
-import java.io.IOException;
-import javax.inject.Inject;
 import org.tasks.LocalBroadcastManager;
 import org.tasks.R;
 import org.tasks.data.Alarm;
@@ -40,8 +39,17 @@ import org.tasks.data.TaskAttachmentDao;
 import org.tasks.data.UserActivity;
 import org.tasks.data.UserActivityDao;
 import org.tasks.dialogs.DialogBuilder;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+
+import javax.inject.Inject;
+
 import timber.log.Timber;
 
+import static org.tasks.files.FileHelper.fromUri;
+
 public class TasksJsonImporter {
 
   private final TagDataDao tagDataDao;
@@ -64,7 +72,7 @@ public class TasksJsonImporter {
   private int importCount = 0;
   private int skipCount = 0;
   private ProgressDialog progressDialog;
-  private String input;
+  private Uri input;
 
   @Inject
   public TasksJsonImporter(
@@ -100,30 +108,21 @@ public class TasksJsonImporter {
     handler.post(() -> progressDialog.setMessage(message));
   }
 
-  public void importTasks(Activity activity, String input, ProgressDialog progressDialog) {
+  public void importTasks(Activity activity, Uri input, ProgressDialog progressDialog) {
     this.activity = activity;
     this.input = input;
     this.progressDialog = progressDialog;
 
     handler = new Handler();
 
-    new Thread(
+    new Thread(this::performImport).start();
-            () -> {
-              try {
-                performImport();
-              } catch (IOException e) {
-                Timber.e(e);
-              }
-            })
-        .start();
   }
 
-  private void performImport() throws IOException {
+  private void performImport() {
-    FileReader fileReader = new FileReader(input);
-    String string = CharStreams.toString(fileReader);
-    fileReader.close();
     Gson gson = new Gson();
-    JsonObject input = gson.fromJson(string, JsonObject.class);
+    InputStream is = fromUri(activity, this.input);
+    InputStreamReader reader = new InputStreamReader(is);
+    JsonObject input = gson.fromJson(reader, JsonObject.class);
 
     try {
       JsonElement data = input.get("data");
@@ -200,6 +199,10 @@ public class TasksJsonImporter {
         }
         importCount++;
       }
+      reader.close();
+      is.close();
+    } catch (IOException e) {
+      Timber.e(e);
     } finally {
       localBroadcastManager.broadcastRefresh();
       handler.post(
@@ -220,7 +223,7 @@ public class TasksJsonImporter {
         .setMessage(
             activity.getString(
                 R.string.import_summary_message,
-                input,
+                "",
                 r.getQuantityString(R.plurals.Ntasks, taskCount, taskCount),
                 r.getQuantityString(R.plurals.Ntasks, importCount, importCount),
                 r.getQuantityString(R.plurals.Ntasks, skipCount, skipCount),

app/src/main/java/org/tasks/dialogs/ImportTasksDialog.java

@@ -2,27 +2,39 @@ package org.tasks.dialogs;
 
 import android.app.Dialog;
 import android.app.ProgressDialog;
+import android.content.Context;
+import android.net.Uri;
 import android.os.Bundle;
+import android.webkit.MimeTypeMap;
+
 import com.todoroo.astrid.backup.TasksXmlImporter;
-import javax.inject.Inject;
+
 import org.tasks.analytics.Tracker;
 import org.tasks.analytics.Tracking;
 import org.tasks.backup.TasksJsonImporter;
+import org.tasks.injection.ForApplication;
 import org.tasks.injection.InjectingNativeDialogFragment;
 import org.tasks.injection.NativeDialogFragmentComponent;
 
+import java.io.IOException;
+
+import javax.inject.Inject;
+
+import timber.log.Timber;
+
 public class ImportTasksDialog extends InjectingNativeDialogFragment {
 
-  private static final String EXTRA_PATH = "extra_path";
+  private static final String EXTRA_URI = "extra_uri";
   @Inject TasksXmlImporter xmlImporter;
   @Inject TasksJsonImporter jsonImporter;
   @Inject DialogBuilder dialogBuilder;
   @Inject Tracker tracker;
+  @Inject @ForApplication Context context;
 
-  public static ImportTasksDialog newImportTasksDialog(String path) {
+  public static ImportTasksDialog newImportTasksDialog(Uri data) {
     ImportTasksDialog importTasksDialog = new ImportTasksDialog();
     Bundle args = new Bundle();
-    args.putString(EXTRA_PATH, path);
+    args.putParcelable(EXTRA_URI, data);
     importTasksDialog.setArguments(args);
     return importTasksDialog;
   }
@@ -30,21 +42,32 @@ public class ImportTasksDialog extends InjectingNativeDialogFragment {
   @Override
   public Dialog onCreateDialog(Bundle savedInstanceState) {
     Bundle arguments = getArguments();
-    String path = arguments.getString(EXTRA_PATH);
+    Uri data = arguments.getParcelable(EXTRA_URI);
     ProgressDialog progressDialog = dialogBuilder.newProgressDialog();
     progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
     progressDialog.setCancelable(false);
     progressDialog.setIndeterminate(true);
     progressDialog.show();
     setCancelable(false);
-    if (path.endsWith(".xml")) {
+    try {
-      xmlImporter.importTasks(getActivity(), path, progressDialog);
+      String extension = MimeTypeMap.getFileExtensionFromUrl(data.getPath());
-      tracker.reportEvent(Tracking.Events.IMPORT_XML);
+      switch (extension) {
-    } else {
+        case "json":
-      jsonImporter.importTasks(getActivity(), path, progressDialog);
+          jsonImporter.importTasks(getActivity(), data, progressDialog);
           tracker.reportEvent(Tracking.Events.IMPORT_JSON);
+          break;
+        case "xml":
+          xmlImporter.importTasks(getActivity(), data, progressDialog);
+          tracker.reportEvent(Tracking.Events.IMPORT_XML);
+          break;
+        default:
+          throw new IOException("Invalid file type");
       }
       return progressDialog;
+    } catch (IOException e) {
+      Timber.e(e);
+    }
+    return null;
   }
 
   @Override

app/src/main/java/org/tasks/files/FileExplore.java

@@ -93,6 +93,7 @@ public class FileExplore extends InjectingAppCompatActivity {
         File file = com.nononsenseapps.filepicker.Utils.getFileForUri(uri);
         Intent intent = new Intent();
         intent.putExtra(directoryMode ? EXTRA_DIRECTORY : EXTRA_FILE, file.getAbsolutePath());
+        intent.setData(uri);
         setResult(Activity.RESULT_OK, intent);
       }
       finish();

app/src/main/java/org/tasks/files/FileHelper.java

@@ -1,7 +1,5 @@
 package org.tasks.files;
 
-import static com.todoroo.andlib.utility.AndroidUtilities.atLeastLollipop;
-
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
@@ -10,13 +8,94 @@ import android.content.pm.ResolveInfo;
 import android.database.Cursor;
 import android.net.Uri;
 import android.provider.MediaStore;
-import androidx.core.content.FileProvider;
+
 import com.todoroo.astrid.utility.Constants;
+
+import org.tasks.preferences.BasicPreferences;
+import org.tasks.preferences.Preferences;
+
 import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.List;
 
+import javax.annotation.Nullable;
+
+import androidx.core.content.FileProvider;
+import androidx.documentfile.provider.DocumentFile;
+import timber.log.Timber;
+
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastKitKat;
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastLollipop;
+
 public class FileHelper {
 
+  public static void newFilePicker(Activity activity, int rc, @Nullable Uri initial, String... mimeTypes) {
+    if (atLeastKitKat()) {
+      Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+      intent.addCategory(Intent.CATEGORY_OPENABLE);
+      if (initial != null) {
+        intent.setData(initial);
+      }
+      if (mimeTypes.length == 1) {
+        intent.setType(mimeTypes[0]);
+      } else {
+        intent.setType("*/*");
+        if (mimeTypes.length > 1) {
+          intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
+        }
+      }
+      activity.startActivityForResult(intent, rc);
+    } else {
+      Intent intent = new Intent(activity, FileExplore.class);
+      if (initial != null) {
+        intent.putExtra(
+            FileExplore.EXTRA_START_PATH,
+            new File(initial.getPath()));
+      }
+      activity.startActivityForResult(intent, rc);
+    }
+  }
+
+  public static void newDirectoryPicker(Activity activity, int rc, @Nullable Uri initial) {
+    if (atLeastLollipop()) {
+      Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
+      intent.addFlags(
+          Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION
+              | Intent.FLAG_GRANT_WRITE_URI_PERMISSION
+              | Intent.FLAG_GRANT_READ_URI_PERMISSION);
+      intent.putExtra("android.content.extra.SHOW_ADVANCED",true);
+      activity.startActivityForResult(intent, rc);
+    } else {
+      Intent intent = new Intent(activity, FileExplore.class);
+      intent.putExtra(FileExplore.EXTRA_DIRECTORY_MODE, true);
+      if (initial != null) {
+        intent.putExtra(
+            FileExplore.EXTRA_START_PATH,
+            new File(initial.getPath()));
+      }
+      activity.startActivityForResult(intent, rc);
+    }
+  }
+
+  public static InputStream fromUri(Context context, Uri uri) {
+    try {
+      switch (uri.getScheme()) {
+        case "content":
+          return context.getContentResolver().openInputStream(uri);
+        case "file":
+          return new FileInputStream(new File(uri.getPath()));
+        default:
+          throw new IllegalArgumentException("Unhandled scheme: " + uri.getScheme());
+      }
+    } catch (FileNotFoundException e) {
+      Timber.e(e);
+      return null;
+    }
+  }
+
   public static String getPathFromUri(Activity activity, Uri uri) {
     String[] projection = {MediaStore.Images.Media.DATA};
     Cursor cursor = activity.managedQuery(uri, projection, null, null, null);
@@ -57,4 +136,29 @@ public class FileHelper {
       }
     }
   }
+
+  public static Uri newFile(Context context, Uri destination, String mimeType, String filename)
+      throws IOException {
+    switch (destination.getScheme()) {
+      case "content":
+        DocumentFile tree = DocumentFile.fromTreeUri(context, destination);
+        DocumentFile f1 = tree.createFile(mimeType, filename);
+        if (f1 == null) {
+          throw new FileNotFoundException("Failed to create " + filename);
+        }
+        return f1.getUri();
+      case "file":
+        File dir = new File(destination.getPath());
+        if (!dir.exists() && !dir.mkdirs()) {
+          throw new IOException("Failed to create %s" + dir.getAbsolutePath());
+        }
+        File f2 = new File(dir.getAbsolutePath() + File.separator + filename);
+        if (f2.createNewFile()) {
+          return Uri.fromFile(f2);
+        }
+        throw new FileNotFoundException("Failed to create " + filename);
+      default:
+        throw new IllegalArgumentException("Unknown URI scheme: " + destination.getScheme());
+    }
+  }
 }

app/src/main/java/org/tasks/jobs/BackupWork.java

@@ -1,33 +1,46 @@
 package org.tasks.jobs;
 
-import static com.google.common.collect.Iterables.skip;
-import static com.google.common.collect.Lists.newArrayList;
-import static com.todoroo.andlib.utility.DateUtilities.now;
-import static java.util.Collections.emptyList;
-
 import android.content.Context;
-import androidx.annotation.NonNull;
+import android.net.Uri;
-import androidx.work.WorkerParameters;
+
+import com.google.common.base.Predicate;
+import com.google.common.collect.Lists;
+
+import org.tasks.R;
+import org.tasks.backup.TasksJsonExporter;
+import org.tasks.injection.ForApplication;
+import org.tasks.injection.JobComponent;
+import org.tasks.preferences.Preferences;
+
 import java.io.File;
 import java.io.FileFilter;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
+
 import javax.inject.Inject;
-import org.tasks.R;
+
-import org.tasks.backup.TasksJsonExporter;
+import androidx.annotation.NonNull;
-import org.tasks.injection.ForApplication;
+import androidx.documentfile.provider.DocumentFile;
-import org.tasks.injection.JobComponent;
+import androidx.work.WorkerParameters;
-import org.tasks.preferences.Preferences;
 import timber.log.Timber;
 
+import static com.google.common.collect.Iterables.filter;
+import static com.google.common.collect.Iterables.skip;
+import static com.google.common.collect.Lists.newArrayList;
+import static com.todoroo.andlib.utility.DateUtilities.now;
+import static java.util.Collections.emptyList;
+
 public class BackupWork extends RepeatingWorker {
 
   static final String BACKUP_FILE_NAME_REGEX = "auto\\.[-\\d]+\\.json";
-  static final FileFilter FILE_FILTER = f -> f.getName().matches(BACKUP_FILE_NAME_REGEX);
+  static final Predicate<String> FILENAME_FILTER = f -> f.matches(BACKUP_FILE_NAME_REGEX);
+  static final FileFilter FILE_FILTER = f -> FILENAME_FILTER.apply(f.getName());
   private static final Comparator<File> BY_LAST_MODIFIED =
       (f1, f2) -> Long.compare(f2.lastModified(), f1.lastModified());
+  private static final Comparator<DocumentFile> DOCUMENT_FILE_COMPARATOR =
+      (d1, d2) -> Long.compare(d2.lastModified(), d1.lastModified());
 
   private static final int DAYS_TO_KEEP_BACKUP = 7;
   @Inject @ForApplication Context context;
@@ -61,6 +74,17 @@ public class BackupWork extends RepeatingWorker {
     return newArrayList(skip(files, keepNewest));
   }
 
+  private static List<DocumentFile> getDeleteList(DocumentFile[] fileArray) {
+    if (fileArray == null) {
+      return emptyList();
+    }
+
+    List<DocumentFile> files = Arrays.asList(fileArray);
+    files = newArrayList(filter(files, file -> FILENAME_FILTER.apply(file.getName())));
+    Collections.sort(files, DOCUMENT_FILE_COMPARATOR);
+    return newArrayList(skip(files, DAYS_TO_KEEP_BACKUP));
+  }
+
   @Override
   protected void inject(JobComponent component) {
     component.inject(this);
@@ -82,17 +106,25 @@ public class BackupWork extends RepeatingWorker {
   }
 
   private void deleteOldBackups() {
-    File astridDir = preferences.getBackupDirectory();
+    Uri uri = preferences.getBackupDirectory();
-    if (astridDir == null) {
+    switch (uri.getScheme()) {
-      return;
+      case "content":
+        DocumentFile dir = DocumentFile.fromTreeUri(context, uri);
+        for (DocumentFile file : getDeleteList(dir.listFiles())) {
+          if (!file.delete()) {
+            Timber.e("Unable to delete: %s", file);
           }
-
+        }
-    // grab all backup files, sort by modified date, delete old ones
+        break;
+      case "file":
+        File astridDir = new File(uri.getPath());
         File[] fileArray = astridDir.listFiles(FILE_FILTER);
         for (File file : getDeleteList(fileArray, DAYS_TO_KEEP_BACKUP)) {
           if (!file.delete()) {
             Timber.e("Unable to delete: %s", file);
           }
         }
+        break;
+    }
   }
 }

app/src/main/java/org/tasks/preferences/BasicPreferences.java

@@ -1,22 +1,17 @@
 package org.tasks.preferences;
 
-import static com.todoroo.andlib.utility.AndroidUtilities.atLeastJellybeanMR1;
-import static org.tasks.dialogs.ExportTasksDialog.newExportTasksDialog;
-import static org.tasks.dialogs.ImportTasksDialog.newImportTasksDialog;
-import static org.tasks.locale.LocalePickerDialog.newLocalePickerDialog;
-import static org.tasks.themes.ThemeColor.LAUNCHERS;
-
 import android.app.Activity;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.pm.PackageManager;
+import android.net.Uri;
 import android.os.Bundle;
 import android.preference.Preference;
+
 import com.google.common.base.Strings;
 import com.todoroo.astrid.core.OldTaskPreferences;
 import com.todoroo.astrid.reminders.ReminderPreferences;
-import java.io.File;
+
-import javax.inject.Inject;
 import org.tasks.BuildConfig;
 import org.tasks.R;
 import org.tasks.activities.ColorPickerActivity;
@@ -28,6 +23,7 @@ import org.tasks.billing.BillingClient;
 import org.tasks.billing.Inventory;
 import org.tasks.dialogs.DialogBuilder;
 import org.tasks.files.FileExplore;
+import org.tasks.files.FileHelper;
 import org.tasks.injection.ActivityComponent;
 import org.tasks.injection.InjectingPreferenceActivity;
 import org.tasks.locale.Locale;
@@ -37,6 +33,18 @@ import org.tasks.themes.ThemeBase;
 import org.tasks.themes.ThemeCache;
 import org.tasks.themes.ThemeColor;
 
+import java.io.File;
+
+import javax.inject.Inject;
+
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastJellybeanMR1;
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastKitKat;
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastLollipop;
+import static org.tasks.dialogs.ExportTasksDialog.newExportTasksDialog;
+import static org.tasks.dialogs.ImportTasksDialog.newImportTasksDialog;
+import static org.tasks.locale.LocalePickerDialog.newLocalePickerDialog;
+import static org.tasks.themes.ThemeColor.LAUNCHERS;
+
 public class BasicPreferences extends InjectingPreferenceActivity
     implements LocalePickerDialog.LocaleSelectionHandler {
 
@@ -146,10 +154,7 @@ public class BasicPreferences extends InjectingPreferenceActivity
     findPreference(R.string.backup_BAc_import)
         .setOnPreferenceClickListener(
             preference -> {
-              Intent intent = new Intent(BasicPreferences.this, FileExplore.class);
+              FileHelper.newFilePicker(BasicPreferences.this, REQUEST_PICKER, preferences.getBackupDirectory());
-              intent.putExtra(
-                  FileExplore.EXTRA_START_PATH, preferences.getBackupDirectory().getAbsolutePath());
-              startActivityForResult(intent, REQUEST_PICKER);
               return false;
             });
 
@@ -230,13 +235,19 @@ public class BasicPreferences extends InjectingPreferenceActivity
       }
     } else if (requestCode == REQUEST_CODE_BACKUP_DIR) {
       if (resultCode == RESULT_OK && data != null) {
-        String dir = data.getStringExtra(FileExplore.EXTRA_DIRECTORY);
+        Uri dir = data.getData();
-        preferences.setString(R.string.p_backup_dir, dir);
+        if (atLeastLollipop()) {
+          getContentResolver()
+              .takePersistableUriPermission(
+                  dir,
+                  Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
+        }
+        preferences.setString(R.string.p_backup_dir, dir.toString());
         updateBackupDirectory();
       }
     } else if (requestCode == REQUEST_PICKER) {
       if (resultCode == RESULT_OK) {
-        newImportTasksDialog(data.getStringExtra(FileExplore.EXTRA_FILE))
+        newImportTasksDialog(data.getData())
             .show(getFragmentManager(), FRAG_TAG_IMPORT_TASKS);
       }
     } else {
@@ -278,10 +289,8 @@ public class BasicPreferences extends InjectingPreferenceActivity
     findPreference(getString(R.string.p_backup_dir))
         .setOnPreferenceClickListener(
             p -> {
-              Intent filesDir = new Intent(BasicPreferences.this, FileExplore.class);
+              FileHelper.newDirectoryPicker(this, REQUEST_CODE_BACKUP_DIR, preferences.getBackupDirectory());
-              filesDir.putExtra(FileExplore.EXTRA_DIRECTORY_MODE, true);
+              return false;
-              startActivityForResult(filesDir, REQUEST_CODE_BACKUP_DIR);
-              return true;
             });
     updateBackupDirectory();
   }
@@ -291,8 +300,10 @@ public class BasicPreferences extends InjectingPreferenceActivity
   }
 
   private String getBackupDirectory() {
-    File dir = preferences.getBackupDirectory();
+    Uri uri = preferences.getBackupDirectory();
-    return dir == null ? "" : dir.getAbsolutePath();
+    return uri.getScheme().equals("file")
+        ? new File(uri.getPath()).getAbsolutePath()
+        : uri.toString();
   }
 
   private void setLauncherIcon(int index) {

app/src/main/java/org/tasks/preferences/Preferences.java

@@ -1,36 +1,47 @@
 package org.tasks.preferences;
 
-import static android.content.SharedPreferences.Editor;
-import static com.google.common.collect.Iterables.transform;
-import static com.google.common.collect.Sets.newHashSet;
-import static java.util.Collections.emptySet;
-
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.media.RingtoneManager;
 import android.net.Uri;
+import android.os.Binder;
 import android.preference.PreferenceManager;
-import androidx.core.app.NotificationCompat;
 import android.text.TextUtils;
+
 import com.android.billingclient.api.Purchase;
+import com.google.common.base.Strings;
 import com.google.gson.GsonBuilder;
 import com.todoroo.astrid.activity.BeastModePreferences;
 import com.todoroo.astrid.api.AstridApiConstants;
 import com.todoroo.astrid.core.SortHelper;
 import com.todoroo.astrid.data.Task;
-import java.io.File;
+
-import java.util.Collection;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicReference;
-import javax.inject.Inject;
 import org.tasks.BuildConfig;
 import org.tasks.R;
 import org.tasks.data.TaskAttachment;
 import org.tasks.injection.ForApplication;
 import org.tasks.time.DateTime;
+
+import java.io.File;
+import java.util.Collection;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicReference;
+
+import javax.inject.Inject;
+
+import androidx.core.app.NotificationCompat;
+import androidx.documentfile.provider.DocumentFile;
 import timber.log.Timber;
 
+import static android.content.SharedPreferences.Editor;
+import static com.google.common.collect.Iterables.transform;
+import static com.google.common.collect.Sets.newHashSet;
+import static com.todoroo.andlib.utility.AndroidUtilities.atLeastKitKat;
+import static java.util.Collections.emptySet;
+
 public class Preferences {
 
   private static final String P_CURRENT_VERSION = "cv"; // $NON-NLS-1$
@@ -259,6 +270,19 @@ public class Preferences {
     }
   }
 
+  public Uri getUri(int key) {
+    String uri = getStringValue(key);
+    return Strings.isNullOrEmpty(uri) ? null : Uri.parse(uri);
+  }
+
+  public void setUri(int key, java.net.URI uri) {
+    setString(key, uri.toString());
+  }
+
+  public void setUri(int key, Uri uri) {
+    setString(key, uri.toString());
+  }
+
   public void setString(int key, String newValue) {
     setString(context.getString(key), newValue);
   }
@@ -405,18 +429,43 @@ public class Preferences {
     return dir + File.separator + name;
   }
 
-  public File getBackupDirectory() {
+  public Uri getBackupDirectory() {
-    File directory = null;
+    Uri uri = getUri(R.string.p_backup_dir);
-    String customDir = getStringValue(R.string.p_backup_dir);
+    if (uri != null) {
-    if (permissionChecker.canWriteToExternalStorage() && !TextUtils.isEmpty(customDir)) {
+      switch (uri.getScheme()) {
-      directory = new File(customDir);
+        case "file":
+          File file = new File(uri.getPath());
+          try {
+            if (file.canWrite()) {
+              return uri;
+            }
+          } catch (SecurityException ignored) {
+          }
+          break;
+        case "content":
+          if (hasWritePermission(context, uri)) {
+            return uri;
+          }
+          break;
+      }
     }
 
-    if (directory == null || !directory.exists()) {
+    if (atLeastKitKat()) {
-      directory = getDefaultFileLocation("backups");
+      return DocumentFile.fromFile(context.getExternalFilesDir(null))
+          .createDirectory("backups")
+          .getUri();
+    } else {
+      return Uri.fromFile(getDefaultFileLocation("backups"));
+    }
   }
 
-    return directory;
+  private boolean hasWritePermission(Context context, Uri uri) {
+    return PackageManager.PERMISSION_GRANTED
+        == context.checkUriPermission(
+            uri,
+            Binder.getCallingPid(),
+            Binder.getCallingUid(),
+            Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
   }
 
   public int getNotificationDefaults() {

app/src/main/res/values-bg-rBG/strings.xml

@@ -21,8 +21,6 @@
 %4$s вече съществуват\n
 %5$s имат грешки\n</string>
 	<string name="import_progress_read">Прочитане на задачи %d...</string>
-	<string name="DLG_error_sdcard">Нямате достъп до папка: %s</string>
-	<string name="DLG_error_sdcard_general">SD картата не може да бъде достъпена!</string>
 	<string name="read_permission_label">Tasks Разрешение</string>
 	<string name="discard_confirmation">Сигурни ли сте че искате да отхвърлите промените си?</string>
 	<string name="keep_editing">Продължаване на редактиране</string>

app/src/main/res/values-ca/strings.xml

@@ -14,8 +14,6 @@
 	<string name="export_toast_no_tasks">Sense tasques que exportar</string>
 	<string name="import_summary_title">Resum de Restauració</string>
 	<string name="import_progress_read">S\'està llegint la tasca %d</string>
-	<string name="DLG_error_sdcard">No es pot accedir a la carpeta: %s</string>
-	<string name="DLG_error_sdcard_general">No s\'ha pogut accedir a la targeta SD.</string>
 	<string name="read_permission_label">Permís de l\'Tasks</string>
 	<string name="DLG_delete_this_task_question">Voleu suprimir aquesta tasca?</string>
 	<string name="DLG_hour_minutes">Temps (hores : minuts)</string>

app/src/main/res/values-cs/strings.xml

@@ -17,8 +17,6 @@
 	<string name="import_summary_title">Souhrn obnovy</string>
 	<string name="import_summary_message">Soubor %1$s obsahuje %2$s.\n\n %3$s importováno,\n %4$s již existuje\n %5$s je chybných\n</string>
 	<string name="import_progress_read">Načítávání úkolu %d...</string>
-	<string name="DLG_error_sdcard">Chyba v přístupu k adresáři: %s</string>
-	<string name="DLG_error_sdcard_general">Chyba v přístupu k SD kartě!</string>
 	<string name="read_permission_label">Tasks Práva</string>
 	<string name="DLG_delete_this_task_question">Smazat tento úkol?</string>
 	<string name="DLG_hour_minutes">Čas (hodin : minut)</string>

app/src/main/res/values-da/strings.xml

@@ -16,8 +16,6 @@
 	<string name="import_summary_title">Opsummering af gendannelse</string>
 	<string name="import_summary_message">Filen %1$s indeholdt %2$s.\n\n %3$s importeret,\n %4$s findes allerede\n %5$s indeholdt fejl\n</string>
 	<string name="import_progress_read">Læser opgave %d...</string>
-	<string name="DLG_error_sdcard">Kan ikke få adgang til mappen: %s</string>
-	<string name="DLG_error_sdcard_general">Kan ikke få adgang til dig SD-kort!</string>
 	<string name="read_permission_label">Tasks Tilladelser</string>
 	<string name="DLG_delete_this_task_question">Slet denne opgave?</string>
 	<string name="DLG_hour_minutes">Tid (timer : minutter)</string>

app/src/main/res/values-de/strings.xml

@@ -16,8 +16,6 @@
 	<string name="import_summary_title">Zusammenfassung wiederherstellen</string>
 	<string name="import_summary_message">Datei %1$s enthielt %2$s Aufgaben.\n\n %3$s wurden importiert,\n %4$s waren schon vorhanden (übersprungen)\n %5$s waren fehlerhaft\n</string>
 	<string name="import_progress_read">Aufgabe %d wird gelesen …</string>
-	<string name="DLG_error_sdcard">Ordner konnte nicht geöffnet werden: %s</string>
-	<string name="DLG_error_sdcard_general">Auf die SD-Karte konnte nicht zugegriffen werden!</string>
 	<string name="read_permission_label">Tasks Zugriffsrechte</string>
 	<string name="discard_confirmation">Änderungen wirklich verwerfen?</string>
 	<string name="keep_editing">Weiter bearbeiten</string>

app/src/main/res/values-el/strings.xml

@@ -19,8 +19,6 @@
 %4$s υπάρχει ήδηt\n
 %5$s έχει σφάλματα\n</string>
 	<string name="import_progress_read">Ανάγνωση εργασίας %d...</string>
-	<string name="DLG_error_sdcard">Δεν υπάρχει πρόσβαση στον φάκελο: %s</string>
-	<string name="DLG_error_sdcard_general">Δεν υπάρχει πρόσβαση στην SD κάρτα!</string>
 	<string name="read_permission_label">Άδεια εργασιών</string>
 	<string name="DLG_delete_this_task_question">Διαγραφή εργασίας;</string>
 	<string name="DLG_hour_minutes">Ώρα (ώρες : λεπτά)</string>

app/src/main/res/values-es/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Resumen de restauración</string>
 	<string name="import_summary_message">El fichero %1$s contenia %2$s.\n\n %3$s importadas\n %4$s ya existian\n %5$s tenian errores\n</string>
 	<string name="import_progress_read">Leyendo tarea %d...</string>
-	<string name="DLG_error_sdcard">No se puede acceder a la carpeta: %s</string>
-	<string name="DLG_error_sdcard_general">¡No se pudo acceder a su tarjeta de memoria SD!</string>
 	<string name="read_permission_label">Permisos de Tasks</string>
 	<string name="discard_confirmation">¿Quieres descartar los cambios?</string>
 	<string name="keep_editing">Seguir editando</string>

app/src/main/res/values-fi/strings.xml

@@ -21,8 +21,6 @@
 %4$s jo olemassa\n
 %5$s virheitä\n</string>
 	<string name="import_progress_read">Luetaan tehtävää %d...</string>
-	<string name="DLG_error_sdcard">Ei pääsyä kansioon: %s</string>
-	<string name="DLG_error_sdcard_general">Ei pääsyä SD kortillesi!</string>
 	<string name="read_permission_label">Tasks käyttöoikeus</string>
 	<string name="discard_confirmation">Oletko varma että haluat hylätä muutokset?</string>
 	<string name="keep_editing">Jatka muokkausta</string>

app/src/main/res/values-fr/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Résumé de la restauration</string>
 	<string name="import_summary_message">Le fichier %1$s contenait %2$s.\n\n %3$s importées,\n %4$s existent déjà\n %5$s avaient des erreurs\n</string>
 	<string name="import_progress_read">Lecture de la tâche %d…</string>
-	<string name="DLG_error_sdcard">Impossible d\'accéder au dossier : %s</string>
-	<string name="DLG_error_sdcard_general">Impossible d\'accéder à la carte SD !</string>
 	<string name="read_permission_label">Permissions de Tasks</string>
 	<string name="discard_confirmation">Êtes-vous sûr de vouloir annuler vos modifications ?</string>
 	<string name="keep_editing">Continuer l\'édition</string>

app/src/main/res/values-gl/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Resumen de restauración</string>
 	<string name="import_summary_message">El fichero %1$s contenia %2$s.\n\n %3$s importadas\n %4$s ya existian\n %5$s tenian errores\n</string>
 	<string name="import_progress_read">Leyendo tarea %d...</string>
-	<string name="DLG_error_sdcard">No se puede acceder a la carpeta: %s</string>
-	<string name="DLG_error_sdcard_general">¡No se pudo acceder a su tarjeta de memoria SD!</string>
 	<string name="read_permission_label">Permisos de Tasks</string>
 	<string name="discard_confirmation">¿Quieres descartar los cambios?</string>
 	<string name="keep_editing">Seguir editando</string>

app/src/main/res/values-hu/strings.xml

@@ -21,8 +21,6 @@
 %4$s már létezett\n
 %5$s hibás\n</string>
 	<string name="import_progress_read">%d feladat olvasása...</string>
-	<string name="DLG_error_sdcard">Könyvtár nem elérhető: %s</string>
-	<string name="DLG_error_sdcard_general">SD kártya nem elérhető</string>
 	<string name="read_permission_label">Tasks Engedélyek</string>
 	<string name="discard_confirmation">Biztosan el akarja vetni a változtatásokat?</string>
 	<string name="keep_editing">Vissza a szerkesztéshez</string>

app/src/main/res/values-it/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Ripristina sommario</string>
 	<string name="import_summary_message">Il File %1$s contiene %2$s.\n\n %3$s importati\n %4$s esiste già\n %5$s contiene errori\n</string>
 	<string name="import_progress_read">Lettura compito %d...</string>
-	<string name="DLG_error_sdcard">Impossibile accedere alla cartella: %s</string>
-	<string name="DLG_error_sdcard_general">Impossibile accedere alla scheda SD!</string>
 	<string name="read_permission_label">Permessi attività</string>
 	<string name="discard_confirmation">Sicuro di voler annullare tutte le modifiche?</string>
 	<string name="keep_editing">Continua modifica</string>

app/src/main/res/values-iw/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">סיכום פעולת השחזור</string>
 	<string name="import_summary_message">\"הקובץ \' %1$s\' הכיל  %2$s משימות: \n\n %3$s יובאו,\n %4$s היו קיימות כבר,\nוב־%5$s היו שגיאות.\n\"</string>
 	<string name="import_progress_read">קוראת משימה %d...</string>
-	<string name="DLG_error_sdcard">לא ניתן לגשת לתיקיה: %s</string>
-	<string name="DLG_error_sdcard_general">לא ניתן לגשת לכרטיס ה־SD שלך!</string>
 	<string name="read_permission_label">הרשאות אסטריד</string>
 	<string name="discard_confirmation">להתעלם מהשינויים ?</string>
 	<string name="keep_editing">המשך לערוך</string>

app/src/main/res/values-ja/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">復元の概要</string>
 	<string name="import_summary_message">ファイル %1$s の %2$s 中、\n\n成功: %3$s\n既に存在: %4$s\n失敗: %5$s\n</string>
 	<string name="import_progress_read">タスク %d を読み込み中</string>
-	<string name="DLG_error_sdcard">フォルダ %s を開けません</string>
-	<string name="DLG_error_sdcard_general">SDカードにアクセスできません</string>
 	<string name="read_permission_label">タスクの読み込み</string>
 	<string name="discard_confirmation">変更を破棄してもよろしいですか?</string>
 	<string name="keep_editing">編集を続ける</string>

app/src/main/res/values-ko/strings.xml

@@ -21,8 +21,6 @@
 %4$s 개 이미 존재,\n
 %5$s 개 에러 발생\n</string>
 	<string name="import_progress_read">할일 %d 읽는 중...</string>
-	<string name="DLG_error_sdcard">폴더에 접근 불가: %s</string>
-	<string name="DLG_error_sdcard_general">SD 카드에 접근할 수 없습니다!</string>
 	<string name="read_permission_label">Tasks 권한</string>
 	<string name="discard_confirmation">변경 사항을 버리시겠습니까?</string>
 	<string name="keep_editing">계속 편집</string>

app/src/main/res/values-lt/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Atstatyti suvestinę</string>
 	<string name="import_summary_message">Failas %1$s turėjo %2$s.\n\n %3$s suimportuota,\n %4$s jau egzistavo\n %5$s turėjo klaidų\n</string>
 	<string name="import_progress_read">Nuskaitoma užduotis %d...</string>
-	<string name="DLG_error_sdcard">Nėra prieigos prie aplanko: %s</string>
-	<string name="DLG_error_sdcard_general">Nėra prieigos prie SD kortelės!</string>
 	<string name="read_permission_label">Tasks leidimas</string>
 	<string name="discard_confirmation">Ar tikrai norite atmesti pakeitimus?</string>
 	<string name="keep_editing">Tęsti redagavimą</string>

app/src/main/res/values-nb/strings.xml

@@ -14,8 +14,6 @@
 	<string name="import_summary_title">Gjennopprettingssammendrag</string>
 	<string name="import_summary_message">Filen %1$s inneholder %2$s.\n\n %3$s importert,\n %4$s eksisterer allerede\n %5$s inneholdt feil\n</string>
 	<string name="import_progress_read">Leser oppgave %d...</string>
-	<string name="DLG_error_sdcard">Får ikke tilgang til mappen: %s</string>
-	<string name="DLG_error_sdcard_general">Ditt SD-kort er ikke tilgjengelig!</string>
 	<string name="read_permission_label">Tasks Tillatelse</string>
 	<string name="DLG_delete_this_task_question">Slett denne oppgaven?</string>
 	<string name="DLG_hour_minutes">Tid (timer : minutter)</string>

app/src/main/res/values-nl/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Samenvatting herstellen</string>
 	<string name="import_summary_message">Bestand %1$s bevat %2$s.\n\n %3$s geïmporteerd,\n %4$s bestaan al\n %5$s had fouten\n</string>
 	<string name="import_progress_read">Taak %d lezen...</string>
-	<string name="DLG_error_sdcard">Toegang geweigerd tot map: %s</string>
-	<string name="DLG_error_sdcard_general">Toegang tot SD-kaart geweigerd!</string>
 	<string name="read_permission_label">Taak toestemmingen</string>
 	<string name="discard_confirmation">Weet u zeker dat u de wijzigingen niet wilt opslaan?</string>
 	<string name="keep_editing">Blijf editen</string>

app/src/main/res/values-pl/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Podsumowanie odzyskiwania</string>
 	<string name="import_summary_message">Plik %1$s zawiera %2$s.\n\n %3$s zaimportowanych,\n %4$s już istnieje\n %5$s zawiera błędy\n</string>
 	<string name="import_progress_read">Czytanie zadania %d...</string>
-	<string name="DLG_error_sdcard">Brak dostępu do folderu: %s</string>
-	<string name="DLG_error_sdcard_general">Brak dostępu do Twojej karty SD!</string>
 	<string name="read_permission_label">Uprawnienia Tasks</string>
 	<string name="discard_confirmation">Czy jesteś pewien, że chcesz porzucić zmiany?</string>
 	<string name="keep_editing">Kontynuuj edycję</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -20,8 +20,6 @@
 %4$s já existiam\n
 %5$s tinham erros\n</string>
 	<string name="import_progress_read">Lendo tarefa %d...</string>
-	<string name="DLG_error_sdcard">Não foi possível acessar a pasta: %s</string>
-	<string name="DLG_error_sdcard_general">Não foi possível acessar seu cartão SD!</string>
 	<string name="read_permission_label">Permissões do Tasks</string>
 	<string name="discard_confirmation">Você tem certeza que deseja descartar suas mudanças?</string>
 	<string name="keep_editing">Continuar editando</string>

app/src/main/res/values-pt/strings.xml

@@ -20,8 +20,6 @@
 %4$s já existiam\n
 %5$s possuem erros\n</string>
 	<string name="import_progress_read">A ler tarefa %d...</string>
-	<string name="DLG_error_sdcard">Não é possível aceder à pasta: %s</string>
-	<string name="DLG_error_sdcard_general">Não é possível aceder ao seu cartão SD!</string>
 	<string name="read_permission_label">Permissões do Tasks</string>
 	<string name="discard_confirmation">Tem a certeza que deseja descartar as alterações?</string>
 	<string name="keep_editing">Continuar a editar</string>

app/src/main/res/values-ru/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Итог восстановления</string>
 	<string name="import_summary_message">Файл %1$s содержал %2$s.\n\n %3$s импортировано,\n %4$s существовало\n %5$s с ошибками\n</string>
 	<string name="import_progress_read">Чтение задачи %d…</string>
-	<string name="DLG_error_sdcard">Нет доступа к папке:%s</string>
-	<string name="DLG_error_sdcard_general">Нет доступа к карте памяти!</string>
 	<string name="read_permission_label">Разрешения Tasks</string>
 	<string name="discard_confirmation">Вы действительно хотите отказаться от сделанных изменений?</string>
 	<string name="keep_editing">Продолжить редактировать</string>

app/src/main/res/values-sk/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Obnoviť zhrnutie</string>
 	<string name="import_summary_message">Súbor %1$s obsahuje %2$s.\n\n %3$s importované,\n %4$s už existuje\n%5$s je chybných\n</string>
 	<string name="import_progress_read">Čítanie úloh %d...</string>
-	<string name="DLG_error_sdcard">Chyba v prístupe do priečinka. %s</string>
-	<string name="DLG_error_sdcard_general">Chyba v prístupe k SD karte!</string>
 	<string name="read_permission_label">Povolenia Úloh</string>
 	<string name="discard_confirmation">Naozaj chceš zmazať zmeny?</string>
 	<string name="keep_editing">Pokračuj v úpravách</string>

app/src/main/res/values-sl-rSI/strings.xml

@@ -19,8 +19,6 @@
 %4$s že obstaja\n
 %5$s imel napake\n</string>
 	<string name="import_progress_read">Berem opravek %d...</string>
-	<string name="DLG_error_sdcard">Datoteka:%s ni dostopna</string>
-	<string name="DLG_error_sdcard_general">Tvoja SD kartica ni dostopna.</string>
 	<string name="read_permission_label">Dovoljenje Opravkom</string>
 	<string name="DLG_delete_this_task_question">Zbrišem ta opravek?</string>
 	<string name="DLG_hour_minutes">Čas (ure : minute)</string>

app/src/main/res/values-sv/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">Återställningssammanfattning</string>
 	<string name="import_summary_message">Filen %1$s innehöll %2$s.\n\n %3$s importerade,\n %4$s existerar redan\n %5$s hade fel\n</string>
 	<string name="import_progress_read">Läser uppgift %d...</string>
-	<string name="DLG_error_sdcard">Mappåtkomst nekad: %s</string>
-	<string name="DLG_error_sdcard_general">SD-kort ej tillgängligt!</string>
 	<string name="read_permission_label">Tasks Tillstånd</string>
 	<string name="discard_confirmation">Är du säker på att du inte vill spara dina ändringar?</string>
 	<string name="keep_editing">Fortsätt redigera</string>

app/src/main/res/values-th/strings.xml

@@ -9,8 +9,6 @@
 	<string name="actfm_picture_clear">ล้างภาพ</string>
 	<string name="backup_BPr_header">สำรองข้อมูล</string>
 	<string name="import_progress_read">กำลังอ่านแผนงาน %d...</string>
-	<string name="DLG_error_sdcard">ไม่สามารถเข้าถึงแฟ้ม: %s</string>
-	<string name="DLG_error_sdcard_general">ไม่สามารถเข้าถึง SD Card ได้!</string>
 	<string name="DLG_delete_this_task_question">ลบงานนี้?</string>
 	<string name="DLG_hour_minutes">เวลา (ชั่วโมง : นาที)</string>
 	<string name="WID_dateButtonUnset">คลิก เพื่อตั้งค่า</string>

app/src/main/res/values-tr/strings.xml

@@ -22,8 +22,6 @@
  %5$s hatalar var
 </string>
 	<string name="import_progress_read">%d görev okunuyor..</string>
-	<string name="DLG_error_sdcard">%s dizinine erişilemedi.</string>
-	<string name="DLG_error_sdcard_general">Bellek kartınıza erişilemiyor!</string>
 	<string name="read_permission_label">Tasks İzni</string>
 	<string name="discard_confirmation">Değişikliklerinizi gözden çıkarmak istediğinize emin misiniz?</string>
 	<string name="keep_editing">Düzenlemeyi sürdür</string>

app/src/main/res/values-uk/strings.xml

@@ -21,8 +21,6 @@
 %4$s вже існує\n
 %5$s має помилку\n</string>
 	<string name="import_progress_read">Читання завдання %d...</string>
-	<string name="DLG_error_sdcard">Немає доступу до папки: %s</string>
-	<string name="DLG_error_sdcard_general">Немає доступу до карти SD!</string>
 	<string name="read_permission_label">Дозволи Tasks</string>
 	<string name="discard_confirmation">Дійсно хочете скасувати ваші зміни?</string>
 	<string name="keep_editing">Продовжити редагування</string>

app/src/main/res/values-zh-rCN/strings.xml

@@ -18,8 +18,6 @@
 	<string name="import_summary_title">还原摘要</string>
 	<string name="import_summary_message">文件 %1$s 包含 %2$s 个任务。\n\n %3$s 个已导入,\n %4$s 个已存在\n %5$s 个存在错误\n</string>
 	<string name="import_progress_read">读取任务 %d...</string>
-	<string name="DLG_error_sdcard">无法开启文件夹：%s</string>
-	<string name="DLG_error_sdcard_general">无法访问您的 SD 卡！</string>
 	<string name="read_permission_label">清单小助理权限</string>
 	<string name="discard_confirmation">确定放弃你的改变吗？</string>
 	<string name="keep_editing">继续编辑</string>

app/src/main/res/values-zh-rTW/strings.xml

@@ -16,8 +16,6 @@
 	<string name="import_summary_title">還原摘要</string>
 	<string name="import_summary_message">檔案 %1$s 已包含 %2$s.\n\n %3$s 已匯入,\n %4$s 已存在\n %5$s 有問題\n</string>
 	<string name="import_progress_read">讀取工作 %d...</string>
-	<string name="DLG_error_sdcard">無法開啟資料夾: %s</string>
-	<string name="DLG_error_sdcard_general">無法存取您的SD卡!</string>
 	<string name="read_permission_label">Tasks 權限</string>
 	<string name="DLG_delete_this_task_question">確認刪除?</string>
 	<string name="DLG_hour_minutes">時間 (小時:分鐘)</string>

app/src/main/res/values/strings.xml

@@ -46,12 +46,6 @@ File %1$s contained %2$s.\n\n
   <!-- Progress Dialog text for import reading task (%d -> task number)-->
   <string name="import_progress_read">Reading task %d…</string>
 
-  <!-- Backup: Dialog when unable to open SD card folder (%s => folder) -->
-  <string name="DLG_error_sdcard">Cannot access folder: %s</string>
-
-  <!-- Backup: Dialog when unable to open SD card in general -->
-  <string name="DLG_error_sdcard_general">Cannot access your SD card!</string>
-
   <!-- ================================================== AndroidManifest == -->
 
   <!-- permission title for READ_TASKS -->