private void setUpdateIntervalText() {
   Context context = ui.getActivity().getApplicationContext();
   String val;
   long interval = UserPreferences.getUpdateInterval();
   if (interval > 0) {
     int hours = (int) TimeUnit.MILLISECONDS.toHours(interval);
     String hoursStr =
         context.getResources().getQuantityString(R.plurals.time_hours_quantified, hours, hours);
     val =
         String.format(context.getString(R.string.pref_autoUpdateIntervallOrTime_every), hoursStr);
   } else {
     int[] timeOfDay = UserPreferences.getUpdateTimeOfDay();
     if (timeOfDay.length == 2) {
       Calendar cal = new GregorianCalendar();
       cal.set(Calendar.HOUR_OF_DAY, timeOfDay[0]);
       cal.set(Calendar.MINUTE, timeOfDay[1]);
       String timeOfDayStr = DateFormat.getTimeFormat(context).format(cal.getTime());
       val =
           String.format(
               context.getString(R.string.pref_autoUpdateIntervallOrTime_at), timeOfDayStr);
     } else {
       val = context.getString(R.string.pref_smart_mark_as_played_disabled);
     }
   }
   String summary =
       context.getString(R.string.pref_autoUpdateIntervallOrTime_sum)
           + "\n"
           + String.format(context.getString(R.string.pref_current_value), val);
   ui.findPreference(UserPreferences.PREF_UPDATE_INTERVAL).setSummary(summary);
 }
  private void buildAutodownloadSelectedNetworsPreference() {
    final Activity activity = ui.getActivity();

    if (selectedNetworks != null) {
      clearAutodownloadSelectedNetworsPreference();
    }
    // get configured networks
    WifiManager wifiservice = (WifiManager) activity.getSystemService(Context.WIFI_SERVICE);
    List<WifiConfiguration> networks = wifiservice.getConfiguredNetworks();

    if (networks != null) {
      selectedNetworks = new CheckBoxPreference[networks.size()];
      List<String> prefValues = Arrays.asList(UserPreferences.getAutodownloadSelectedNetworks());
      PreferenceScreen prefScreen =
          (PreferenceScreen) ui.findPreference(PreferenceController.AUTO_DL_PREF_SCREEN);
      Preference.OnPreferenceClickListener clickListener =
          preference -> {
            if (preference instanceof CheckBoxPreference) {
              String key = preference.getKey();
              List<String> prefValuesList =
                  new ArrayList<>(Arrays.asList(UserPreferences.getAutodownloadSelectedNetworks()));
              boolean newValue = ((CheckBoxPreference) preference).isChecked();
              Log.d(TAG, "Selected network " + key + ". New state: " + newValue);

              int index = prefValuesList.indexOf(key);
              if (index >= 0 && !newValue) {
                // remove network
                prefValuesList.remove(index);
              } else if (index < 0 && newValue) {
                prefValuesList.add(key);
              }

              UserPreferences.setAutodownloadSelectedNetworks(
                  prefValuesList.toArray(new String[prefValuesList.size()]));
              return true;
            } else {
              return false;
            }
          };
      // create preference for each known network. attach listener and set
      // value
      for (int i = 0; i < networks.size(); i++) {
        WifiConfiguration config = networks.get(i);

        CheckBoxPreference pref = new CheckBoxPreference(activity);
        String key = Integer.toString(config.networkId);
        pref.setTitle(config.SSID);
        pref.setKey(key);
        pref.setOnPreferenceClickListener(clickListener);
        pref.setPersistent(false);
        pref.setChecked(prefValues.contains(key));
        selectedNetworks[i] = pref;
        prefScreen.addPreference(pref);
      }
    } else {
      Log.e(TAG, "Couldn't get list of configure Wi-Fi networks");
    }
  }
 @Override
 public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
   if (key.equals(UserPreferences.PREF_SONIC)) {
     CheckBoxPreference prefSonic =
         (CheckBoxPreference) ui.findPreference(UserPreferences.PREF_SONIC);
     if (prefSonic != null) {
       prefSonic.setChecked(sharedPreferences.getBoolean(UserPreferences.PREF_SONIC, false));
     }
   }
 }
  private void setEpisodeCacheSizeText(int cacheSize) {
    final Resources res = ui.getActivity().getResources();

    String s;
    if (cacheSize == res.getInteger(R.integer.episode_cache_size_unlimited)) {
      s = res.getString(R.string.pref_episode_cache_unlimited);
    } else {
      s = Integer.toString(cacheSize) + res.getString(R.string.episodes_suffix);
    }
    ui.findPreference(UserPreferences.PREF_EPISODE_CACHE_SIZE).setSummary(s);
  }
  private void clearAutodownloadSelectedNetworsPreference() {
    if (selectedNetworks != null) {
      PreferenceScreen prefScreen =
          (PreferenceScreen) ui.findPreference(PreferenceController.AUTO_DL_PREF_SCREEN);

      for (CheckBoxPreference network : selectedNetworks) {
        if (network != null) {
          prefScreen.removePreference(network);
        }
      }
    }
  }
  @SuppressWarnings("deprecation")
  private void checkItemVisibility() {
    boolean hasFlattrToken = FlattrUtils.hasToken();
    ui.findPreference(PreferenceController.PREF_FLATTR_SETTINGS)
        .setEnabled(FlattrUtils.hasAPICredentials());
    ui.findPreference(PreferenceController.PREF_FLATTR_AUTH).setEnabled(!hasFlattrToken);
    ui.findPreference(PreferenceController.PREF_FLATTR_REVOKE).setEnabled(hasFlattrToken);
    ui.findPreference(PreferenceController.PREF_AUTO_FLATTR_PREFS).setEnabled(hasFlattrToken);

    boolean autoDownload = UserPreferences.isEnableAutodownload();
    ui.findPreference(UserPreferences.PREF_EPISODE_CACHE_SIZE).setEnabled(autoDownload);
    ui.findPreference(UserPreferences.PREF_ENABLE_AUTODL_ON_BATTERY).setEnabled(autoDownload);
    ui.findPreference(UserPreferences.PREF_ENABLE_AUTODL_WIFI_FILTER).setEnabled(autoDownload);
    setSelectedNetworksEnabled(autoDownload && UserPreferences.isEnableAutodownloadWifiFilter());

    ui.findPreference(PREF_SEND_CRASH_REPORT).setEnabled(CrashReportWriter.getFile().exists());

    if (Build.VERSION.SDK_INT >= 16) {
      ui.findPreference(UserPreferences.PREF_SONIC).setEnabled(true);
    } else {
      Preference prefSonic = ui.findPreference(UserPreferences.PREF_SONIC);
      prefSonic.setSummary("[Android 4.1+]\n" + prefSonic.getSummary());
    }
  }
 private void updateGpodnetPreferenceScreen() {
   final boolean loggedIn = GpodnetPreferences.loggedIn();
   ui.findPreference(PreferenceController.PREF_GPODNET_LOGIN).setEnabled(!loggedIn);
   ui.findPreference(PreferenceController.PREF_GPODNET_SETLOGIN_INFORMATION).setEnabled(loggedIn);
   ui.findPreference(PreferenceController.PREF_GPODNET_SYNC).setEnabled(loggedIn);
   ui.findPreference(PreferenceController.PREF_GPODNET_LOGOUT).setEnabled(loggedIn);
   if (loggedIn) {
     String format = ui.getActivity().getString(R.string.pref_gpodnet_login_status);
     String summary =
         String.format(format, GpodnetPreferences.getUsername(), GpodnetPreferences.getDeviceID());
     ui.findPreference(PreferenceController.PREF_GPODNET_LOGOUT)
         .setSummary(Html.fromHtml(summary));
   } else {
     ui.findPreference(PreferenceController.PREF_GPODNET_LOGOUT).setSummary(null);
   }
   ui.findPreference(PreferenceController.PREF_GPODNET_HOSTNAME)
       .setSummary(GpodnetPreferences.getHostname());
 }
  private void buildEpisodeCleanupPreference() {
    final Resources res = ui.getActivity().getResources();

    ListPreference pref = (ListPreference) ui.findPreference(UserPreferences.PREF_EPISODE_CLEANUP);
    String[] values = res.getStringArray(R.array.episode_cleanup_values);
    String[] entries = new String[values.length];
    for (int x = 0; x < values.length; x++) {
      int v = Integer.parseInt(values[x]);
      if (v == UserPreferences.EPISODE_CLEANUP_QUEUE) {
        entries[x] = res.getString(R.string.episode_cleanup_queue_removal);
      } else if (v == UserPreferences.EPISODE_CLEANUP_NULL) {
        entries[x] = res.getString(R.string.episode_cleanup_never);
      } else if (v == 0) {
        entries[x] = res.getString(R.string.episode_cleanup_after_listening);
      } else {
        entries[x] = res.getQuantityString(R.plurals.episode_cleanup_days_after_listening, v, v);
      }
    }
    pref.setEntries(entries);
  }
  private void buildSmartMarkAsPlayedPreference() {
    final Resources res = ui.getActivity().getResources();

    ListPreference pref =
        (ListPreference) ui.findPreference(UserPreferences.PREF_SMART_MARK_AS_PLAYED_SECS);
    String[] values = res.getStringArray(R.array.smart_mark_as_played_values);
    String[] entries = new String[values.length];
    for (int x = 0; x < values.length; x++) {
      if (x == 0) {
        entries[x] = res.getString(R.string.pref_smart_mark_as_played_disabled);
      } else {
        Integer v = Integer.parseInt(values[x]);
        if (v < 60) {
          entries[x] = res.getQuantityString(R.plurals.time_seconds_quantified, v, v);
        } else {
          v /= 60;
          entries[x] = res.getQuantityString(R.plurals.time_minutes_quantified, v, v);
        }
      }
    }
    pref.setEntries(entries);
  }
 private void setDataFolderText() {
   File f = UserPreferences.getDataFolder(null);
   if (f != null) {
     ui.findPreference(PreferenceController.PREF_CHOOSE_DATA_DIR).setSummary(f.getAbsolutePath());
   }
 }
  private void setParallelDownloadsText(int downloads) {
    final Resources res = ui.getActivity().getResources();

    String s = Integer.toString(downloads) + res.getString(R.string.parallel_downloads_suffix);
    ui.findPreference(UserPreferences.PREF_PARALLEL_DOWNLOADS).setSummary(s);
  }
  public void onCreate() {
    final Activity activity = ui.getActivity();

    if (android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
      // disable expanded notification option on unsupported android versions
      ui.findPreference(PreferenceController.PREF_EXPANDED_NOTIFICATION).setEnabled(false);
      ui.findPreference(PreferenceController.PREF_EXPANDED_NOTIFICATION)
          .setOnPreferenceClickListener(
              preference -> {
                Toast toast =
                    Toast.makeText(
                        activity, R.string.pref_expand_notify_unsupport_toast, Toast.LENGTH_SHORT);
                toast.show();
                return true;
              });
    }
    ui.findPreference(PreferenceController.PREF_FLATTR_REVOKE)
        .setOnPreferenceClickListener(
            preference -> {
              FlattrUtils.revokeAccessToken(activity);
              checkItemVisibility();
              return true;
            });
    ui.findPreference(PreferenceController.PREF_ABOUT)
        .setOnPreferenceClickListener(
            preference -> {
              activity.startActivity(new Intent(activity, AboutActivity.class));
              return true;
            });
    ui.findPreference(PreferenceController.STATISTICS)
        .setOnPreferenceClickListener(
            preference -> {
              activity.startActivity(new Intent(activity, StatisticsActivity.class));
              return true;
            });
    ui.findPreference(PreferenceController.PREF_OPML_EXPORT)
        .setOnPreferenceClickListener(
            preference -> {
              new OpmlExportWorker(activity).executeAsync();
              return true;
            });
    ui.findPreference(PreferenceController.PREF_CHOOSE_DATA_DIR)
        .setOnPreferenceClickListener(
            preference -> {
              if (Build.VERSION_CODES.KITKAT <= Build.VERSION.SDK_INT
                  && Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1) {
                showChooseDataFolderDialog();
              } else {
                int readPermission =
                    ActivityCompat.checkSelfPermission(
                        activity, Manifest.permission.READ_EXTERNAL_STORAGE);
                int writePermission =
                    ActivityCompat.checkSelfPermission(
                        activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
                if (readPermission == PackageManager.PERMISSION_GRANTED
                    && writePermission == PackageManager.PERMISSION_GRANTED) {
                  openDirectoryChooser();
                } else {
                  requestPermission();
                }
              }
              return true;
            });
    ui.findPreference(PreferenceController.PREF_CHOOSE_DATA_DIR)
        .setOnPreferenceClickListener(
            preference -> {
              if (Build.VERSION.SDK_INT >= 19) {
                showChooseDataFolderDialog();
              } else {
                Intent intent = new Intent(activity, DirectoryChooserActivity.class);
                activity.startActivityForResult(
                    intent, DirectoryChooserActivity.RESULT_CODE_DIR_SELECTED);
              }
              return true;
            });
    ui.findPreference(UserPreferences.PREF_THEME)
        .setOnPreferenceChangeListener(
            (preference, newValue) -> {
              Intent i = new Intent(activity, MainActivity.class);
              i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
              activity.finish();
              activity.startActivity(i);
              return true;
            });
    ui.findPreference(UserPreferences.PREF_HIDDEN_DRAWER_ITEMS)
        .setOnPreferenceClickListener(
            preference -> {
              showDrawerPreferencesDialog();
              return true;
            });

    ui.findPreference(UserPreferences.PREF_COMPACT_NOTIFICATION_BUTTONS)
        .setOnPreferenceClickListener(
            preference -> {
              showNotificationButtonsDialog();
              return true;
            });

    ui.findPreference(UserPreferences.PREF_UPDATE_INTERVAL)
        .setOnPreferenceClickListener(
            preference -> {
              showUpdateIntervalTimePreferencesDialog();
              return true;
            });

    ui.findPreference(UserPreferences.PREF_ENABLE_AUTODL)
        .setOnPreferenceChangeListener(
            (preference, newValue) -> {
              if (newValue instanceof Boolean) {
                boolean enabled = (Boolean) newValue;
                ui.findPreference(UserPreferences.PREF_EPISODE_CACHE_SIZE).setEnabled(enabled);
                ui.findPreference(UserPreferences.PREF_ENABLE_AUTODL_ON_BATTERY)
                    .setEnabled(enabled);
                ui.findPreference(UserPreferences.PREF_ENABLE_AUTODL_WIFI_FILTER)
                    .setEnabled(enabled);
                setSelectedNetworksEnabled(
                    enabled && UserPreferences.isEnableAutodownloadWifiFilter());
              }
              return true;
            });
    ui.findPreference(UserPreferences.PREF_ENABLE_AUTODL_WIFI_FILTER)
        .setOnPreferenceChangeListener(
            (preference, newValue) -> {
              if (newValue instanceof Boolean) {
                setSelectedNetworksEnabled((Boolean) newValue);
                return true;
              } else {
                return false;
              }
            });
    ui.findPreference(UserPreferences.PREF_PARALLEL_DOWNLOADS)
        .setOnPreferenceChangeListener(
            (preference, o) -> {
              if (o instanceof String) {
                try {
                  int value = Integer.parseInt((String) o);
                  if (1 <= value && value <= 50) {
                    setParallelDownloadsText(value);
                    return true;
                  }
                } catch (NumberFormatException e) {
                  return false;
                }
              }
              return false;
            });
    // validate and set correct value: number of downloads between 1 and 50 (inclusive)
    final EditText ev =
        ((EditTextPreference) ui.findPreference(UserPreferences.PREF_PARALLEL_DOWNLOADS))
            .getEditText();
    ev.addTextChangedListener(
        new TextWatcher() {
          @Override
          public void beforeTextChanged(CharSequence s, int start, int count, int after) {}

          @Override
          public void onTextChanged(CharSequence s, int start, int before, int count) {}

          @Override
          public void afterTextChanged(Editable s) {
            if (s.length() > 0) {
              try {
                int value = Integer.parseInt(s.toString());
                if (value <= 0) {
                  ev.setText("1");
                } else if (value > 50) {
                  ev.setText("50");
                }
              } catch (NumberFormatException e) {
                ev.setText("6");
              }
              ev.setSelection(ev.getText().length());
            }
          }
        });
    ui.findPreference(UserPreferences.PREF_EPISODE_CACHE_SIZE)
        .setOnPreferenceChangeListener(
            (preference, o) -> {
              if (o instanceof String) {
                setEpisodeCacheSizeText(UserPreferences.readEpisodeCacheSize((String) o));
              }
              return true;
            });
    ui.findPreference(PreferenceController.PREF_PLAYBACK_SPEED_LAUNCHER)
        .setOnPreferenceClickListener(
            preference -> {
              VariableSpeedDialog.showDialog(activity);
              return true;
            });
    ui.findPreference(PreferenceController.PREF_GPODNET_SETLOGIN_INFORMATION)
        .setOnPreferenceClickListener(
            preference -> {
              AuthenticationDialog dialog =
                  new AuthenticationDialog(
                      activity,
                      R.string.pref_gpodnet_setlogin_information_title,
                      false,
                      false,
                      GpodnetPreferences.getUsername(),
                      null) {

                    @Override
                    protected void onConfirmed(
                        String username, String password, boolean saveUsernamePassword) {
                      GpodnetPreferences.setPassword(password);
                    }
                  };
              dialog.show();
              return true;
            });
    ui.findPreference(PreferenceController.PREF_GPODNET_SYNC)
        .setOnPreferenceClickListener(
            preference -> {
              GpodnetSyncService.sendSyncIntent(ui.getActivity().getApplicationContext());
              Toast toast =
                  Toast.makeText(
                      ui.getActivity(), R.string.pref_gpodnet_sync_started, Toast.LENGTH_SHORT);
              toast.show();
              return true;
            });
    ui.findPreference(PreferenceController.PREF_GPODNET_LOGOUT)
        .setOnPreferenceClickListener(
            preference -> {
              GpodnetPreferences.logout();
              Toast toast =
                  Toast.makeText(activity, R.string.pref_gpodnet_logout_toast, Toast.LENGTH_SHORT);
              toast.show();
              updateGpodnetPreferenceScreen();
              return true;
            });
    ui.findPreference(PreferenceController.PREF_GPODNET_HOSTNAME)
        .setOnPreferenceClickListener(
            preference -> {
              GpodnetSetHostnameDialog.createDialog(activity)
                  .setOnDismissListener(dialog -> updateGpodnetPreferenceScreen());
              return true;
            });

    ui.findPreference(PreferenceController.PREF_AUTO_FLATTR_PREFS)
        .setOnPreferenceClickListener(
            preference -> {
              AutoFlattrPreferenceDialog.newAutoFlattrPreferenceDialog(
                  activity,
                  new AutoFlattrPreferenceDialog.AutoFlattrPreferenceDialogInterface() {
                    @Override
                    public void onCancelled() {}

                    @Override
                    public void onConfirmed(boolean autoFlattrEnabled, float autoFlattrValue) {
                      UserPreferences.setAutoFlattrSettings(autoFlattrEnabled, autoFlattrValue);
                      checkItemVisibility();
                    }
                  });
              return true;
            });
    ui.findPreference(UserPreferences.PREF_IMAGE_CACHE_SIZE)
        .setOnPreferenceChangeListener(
            (preference, o) -> {
              if (o instanceof String) {
                int newValue = Integer.parseInt((String) o) * 1024 * 1024;
                if (newValue != UserPreferences.getImageCacheSize()) {
                  AlertDialog.Builder dialog = new AlertDialog.Builder(ui.getActivity());
                  dialog.setTitle(android.R.string.dialog_alert_title);
                  dialog.setMessage(R.string.pref_restart_required);
                  dialog.setPositiveButton(android.R.string.ok, null);
                  dialog.show();
                }
                return true;
              }
              return false;
            });
    ui.findPreference(PREF_PROXY)
        .setOnPreferenceClickListener(
            preference -> {
              ProxyDialog dialog = new ProxyDialog(ui.getActivity());
              dialog.createDialog().show();
              return true;
            });
    ui.findPreference(PREF_KNOWN_ISSUES)
        .setOnPreferenceClickListener(
            preference -> {
              openInBrowser("https://github.com/AntennaPod/AntennaPod/labels/bug");
              return true;
            });
    ui.findPreference(PREF_FAQ)
        .setOnPreferenceClickListener(
            preference -> {
              openInBrowser("http://antennapod.org/faq.html");
              return true;
            });
    ui.findPreference(PREF_SEND_CRASH_REPORT)
        .setOnPreferenceClickListener(
            preference -> {
              Intent emailIntent = new Intent(Intent.ACTION_SEND);
              emailIntent.setType("text/plain");
              emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[] {"*****@*****.**"});
              emailIntent.putExtra(Intent.EXTRA_SUBJECT, "AntennaPod Crash Report");
              emailIntent.putExtra(
                  Intent.EXTRA_TEXT, "Please describe what you were doing when the app crashed");
              // the attachment
              emailIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(CrashReportWriter.getFile()));
              String intentTitle = ui.getActivity().getString(R.string.send_email);
              ui.getActivity().startActivity(Intent.createChooser(emailIntent, intentTitle));
              return true;
            });
    // checks whether Google Play Services is installed on the device (condition necessary for Cast
    // support)
    ui.findPreference(UserPreferences.PREF_CAST_ENABLED)
        .setOnPreferenceChangeListener(
            (preference, o) -> {
              if (o instanceof Boolean && ((Boolean) o)) {
                final int googlePlayServicesCheck =
                    GoogleApiAvailability.getInstance()
                        .isGooglePlayServicesAvailable(ui.getActivity());
                if (googlePlayServicesCheck == ConnectionResult.SUCCESS) {
                  return true;
                } else {
                  GoogleApiAvailability.getInstance()
                      .getErrorDialog(ui.getActivity(), googlePlayServicesCheck, 0)
                      .show();
                  return false;
                }
              }
              return true;
            });
    buildEpisodeCleanupPreference();
    buildSmartMarkAsPlayedPreference();
    buildAutodownloadSelectedNetworsPreference();
    setSelectedNetworksEnabled(UserPreferences.isEnableAutodownloadWifiFilter());
  }