@TargetApi(Build.VERSION_CODES.KITKAT)
 @Override
 public boolean onPreferenceClick(Preference preference) {
   if (preference == exportConfig) {
     SyncthingUtils.exportConfig(getActivity());
     return true;
   } else if (preference == importConfig) {
     final File[] availableExports = SyncthingUtils.listExportedConfigs(getActivity());
     if (availableExports == null || availableExports.length == 0) {
       showFilePicker();
     } else {
       String[] items = new String[availableExports.length];
       for (int ii = 0; ii < items.length; ii++) {
         items[ii] = availableExports[ii].getName();
       }
       AlertDialog.Builder bob =
           new AlertDialog.Builder(getActivity())
               .setTitle(R.string.import_config)
               .setSingleChoiceItems(
                   items,
                   0,
                   new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                       File file = availableExports[which];
                       if (file.exists()) {
                         SyncthingUtils.importConfig(getActivity(), Uri.fromFile(file), false);
                         mSettings.setInitialized(ConfigXml.get(getActivity()) != null);
                       }
                     }
                   })
               .setNegativeButton(android.R.string.cancel, null)
               .setPositiveButton(
                   R.string.show_file_picker,
                   new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int which) {
                       showFilePicker();
                     }
                   });
       bob.show();
     }
     return true;
   }
   return false;
 }
 @Override
 public void onActivityResult(int requestCode, int resultCode, Intent data) {
   if (requestCode == ActivityRequestCodes.IMPORT_CONFIG && resultCode == Activity.RESULT_OK) {
     SyncthingUtils.importConfig(getActivity(), data.getData(), false);
     mSettings.setInitialized(ConfigXml.get(getActivity()) != null);
   } else {
     super.onActivityResult(requestCode, resultCode, data);
   }
 }
 @Override
 protected void onStop() {
   super.onStop();
   SyncthingUtils.notifyForegroundStateChanged(this, false);
 }