Presently, I am working on app that works like "To Do Task List". I have successfully implemented the NotificationService and SchedularService in my application. Also I am getting the alerts(Notifications) at the time set for the tasks. Here are my queries as below:
- With this code will my alarms will be deleted after reboot ? If yes, how to overcome this.
- I have kept the Priority feature for the tasks. But i want the mechanism such that if user selects priority "High" then he should receive notifications thrice, say, before 30 minutes, before 15 minutes and on the time set. How to achieve this ?
- I want to set Phone's vibrate feature when Notifications are raised. How to achieve this ?
- And i want to know about, what can be done for the deprecated methods and constructor in NotifyService.java. Thesse are deprecated in API level 11:
Notification notification = new Notification(icon, text, time);
andnotification.setLatestEventInfo(this, title, text, contentIntent);
. On developer.android.com, they have suggested to UseNotification.Builder
instead. So how to make my app compatible with all the API levels.
Here's my snippet code for scheduling alarm:
...
scheduleClient.setAlarmForNotification(c, tmp_task_id);
...
Here's the class ScheduleClient.java:
public class ScheduleClient {
private ScheduleService mBoundService;
private Context mContext;
private boolean mIsBound;
public ScheduleClient(Context context)
{
mContext = context;
}
public void doBindService()
{
mContext.bindService(new Intent(mContext, ScheduleService.class), mConnection, Context.BIND_AUTO_CREATE);
mIsBound = true;
}
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
mBoundService = ((ScheduleService.ServiceBinder) service).getService();
}
public void onServiceDisconnected(ComponentName className) {
mBoundService = null;
}
};
public void setAlarmForNotification(Calendar c, int tmp_task_id){
mBoundService.setAlarm(c, tmp_task_id);
}
public void doUnbindService() {
if (mIsBound)
{
mContext.unbindService(mConnection);
mIsBound = false;
}
}
}
Here's the ScheduleService.java:
public class ScheduleService extends Service {
int task_id;
public class ServiceBinder extends Binder {
ScheduleService getService() {
return ScheduleService.this;
}
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return START_STICKY;
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
private final IBinder mBinder = new ServiceBinder();
public void setAlarm(Calendar c, int tmp_task_id) {
new AlarmTask(this, c, tmp_task_id).run();
}
}
Here's the AlarmTask.java:
public class AlarmTask implements Runnable{
private final Calendar date;
private final AlarmManager am;
private final Context context;
int task_id;
public AlarmTask(Context context, Calendar date, int tmp_task_id) {
this.context = context;
this.am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
this.date = date;
task_id = tmp_task_id;
}
@Override
public void run() {
Intent intent = new Intent(context, NotifyService.class);
intent.putExtra(NotifyService.INTENT_NOTIFY, true);
intent.putExtra("task_id", task_id);
PendingIntent pendingIntent = PendingIntent.getService(context, 0, intent, 0);
am.set(AlarmManager.RTC, date.getTimeInMillis(), pendingIntent);
}
}
Here's the NotifyService.java:
public class NotifyService extends Service {
public class ServiceBinder extends Binder
{
NotifyService getService()
{
return NotifyService.this;
}
}
int task_id;
private static final int NOTIFICATION = 123;
public static final String INTENT_NOTIFY = "com.todotaskmanager.service.INTENT_NOTIFY";
private NotificationManager mNM;
SQLiteDatabase database;
@Override
public void onCreate() {
mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
String tmp_task_brief = null;
task_id = intent.getIntExtra("task_id", 0);
loadDatabase();
Cursor cursor = database.query("task_info", new String[]{"task_brief"}, "task_id=?", new String[]{task_id+""}, null, null, null);
while(cursor.moveToNext())
{
tmp_task_brief = cursor.getString(0);
}
cursor.close();
if(intent.getBooleanExtra(INTENT_NOTIFY, false))
showNotification(tmp_task_brief);
return START_NOT_STICKY;
}
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
private final IBinder mBinder = new ServiceBinder();
private void showNotification(String tmp_task_brief) {
CharSequence title = "To Do Task Notification!!";
int icon = R.drawable.e7ca62cff1c58b6709941e51825e738f;
CharSequence text = tmp_task_brief;
long time = System.currentTimeMillis();
Notification notification = new Notification(icon, text, time);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, TaskDetails.class), 0);
notification.setLatestEventInfo(this, title, text, contentIntent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
mNM.notify(NOTIFICATION, notification);
stopSelf();
}
void loadDatabase()
{
database = openOrCreateDatabase("ToDoDatabase.db",
SQLiteDatabase.OPEN_READWRITE, null);
}
}