private File getExternalFilesDirOrThrowException(Context context, String type)
throws DownloadRequestException {
File result = UserPreferences.getDataFolder(context, type);
if (result == null) {
throw new DownloadRequestException("Failed to access external storage");
}
return result;
}
private void showChooseDataFolderDialog() {
Context context = ui.getActivity();
File dataFolder = UserPreferences.getDataFolder(null);
if (dataFolder == null) {
new MaterialDialog.Builder(ui.getActivity())
.title(R.string.error_label)
.content(R.string.external_storage_error_msg)
.neutralText(android.R.string.ok)
.show();
return;
}
String dataFolderPath = dataFolder.getAbsolutePath();
int selectedIndex = -1;
File[] mediaDirs = ContextCompat.getExternalFilesDirs(context, null);
List<String> folders = new ArrayList<>(mediaDirs.length);
List<CharSequence> choices = new ArrayList<>(mediaDirs.length);
for (int i = 0; i < mediaDirs.length; i++) {
File dir = mediaDirs[i];
if (dir == null || !dir.exists() || !dir.canRead() || !dir.canWrite()) {
continue;
}
String path = mediaDirs[i].getAbsolutePath();
folders.add(path);
if (dataFolderPath.equals(path)) {
selectedIndex = i;
}
int index = path.indexOf("Android");
String choice;
if (index >= 0) {
choice = path.substring(0, index);
} else {
choice = path;
}
long bytes = StorageUtils.getFreeSpaceAvailable(path);
String freeSpace =
String.format(
context.getString(R.string.free_space_label), Converter.byteToString(bytes));
choices.add(
Html.fromHtml("<html><small>" + choice + " [" + freeSpace + "]" + "</small></html>"));
}
if (choices.size() == 0) {
new MaterialDialog.Builder(ui.getActivity())
.title(R.string.error_label)
.content(R.string.external_storage_error_msg)
.neutralText(android.R.string.ok)
.show();
return;
}
MaterialDialog dialog =
new MaterialDialog.Builder(ui.getActivity())
.title(R.string.choose_data_directory)
.content(R.string.choose_data_directory_message)
.items(choices.toArray(new CharSequence[choices.size()]))
.itemsCallbackSingleChoice(
selectedIndex,
(dialog1, itemView, which, text) -> {
String folder = folders.get(which);
Log.d(TAG, "data folder: " + folder);
UserPreferences.setDataFolder(folder);
setDataFolderText();
return true;
})
.negativeText(R.string.cancel_label)
.cancelable(true)
.build();
dialog.show();
}
private void setDataFolderText() {
File f = UserPreferences.getDataFolder(null);
if (f != null) {
ui.findPreference(PreferenceController.PREF_CHOOSE_DATA_DIR).setSummary(f.getAbsolutePath());
}
}
