/**
* Setup missing application files into the "home directory".
*
* @param targetDir
* @throws IOException
* @return true on success
*/
private boolean restoreMissingFiles(final File targetDir) throws IOException {
Debug.enter();
boolean success = false;
final SharedPreferences prefs = Settings.INSTANCE.getSharedPreferences();
final String oldTarball = prefs.getString(SettingsStorage.FIELD_TARBALL, null);
final String newTarball = getString(R.string.build_tarball);
final boolean keepOldFiles = newTarball.equals(oldTarball);
try {
// extract the tar-ball to recover any missing file, if any
final TarArchive tarball = new TarArchive(new GZIPInputStream(tarballFile()));
tarball.keepOldFiles = keepOldFiles;
tarball.extract(targetDir);
tarball.close();
// once the restore is completed successfully,
// we need to update the shared preference, if necessary
if (!keepOldFiles) {
final SharedPreferences.Editor edit = prefs.edit();
edit.putString(SettingsStorage.FIELD_TARBALL, newTarball);
success = edit.commit();
} else {
success = true;
}
} catch (final Resources.NotFoundException ex) {
// this exception usually would happen from the unit-tests
Debug.error(ex, "tarball resources not found", keepOldFiles);
// not really a fatal error if keepOldFiles is true
if (!keepOldFiles) {
Debug.leave();
throw new IOException("Tarball resources missing");
}
} catch (final TarArchive.TarHeaderException ex) {
Debug.error(ex, "invalid tarball header", keepOldFiles);
Debug.leave();
throw new IOException("Invalid tarball format");
} catch (final IOException ex) {
Debug.error(ex, "unable to install tarball", keepOldFiles);
// not really a fatal error if keepOldFiles is true
if (!keepOldFiles) {
Debug.leave();
throw ex;
}
}
Debug.leave(success);
return success;
}
/** {@inheritDoc} */
@Override
public void onConfigurationChanged(final Configuration newConfig) {
super.onConfigurationChanged(newConfig);
{
Debug.enter();
try {
Debug.print(tag, "configurationChanged", newConfig.locale);
Android.App.setLocale(newConfig.locale);
} catch (final IOException ex) {
Debug.error(ex, tag, "unable to set new locale", newConfig.locale);
}
Debug.leave();
}
}