PhotoBackupSettingsActivity.java 文件源码

private void setLastBackupTime()
{
    SwitchPreference dailyBackupPref = getDailyBackupPref();

    if( dailyBackupPref != null ) {
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
        Long lastBackupTime = sharedPreferences.getLong("last_backup_time", 0);

        String lastBackupString = getResources().getString(R.string.last_run)+": ";

        if (lastBackupTime > 0) {
            lastBackupString += DateFormat.getDateTimeInstance().format(lastBackupTime);
        } else {
            lastBackupString += getResources().getString(R.string.never);
        }

        dailyBackupPref.setSummary(lastBackupString);
    }
}