I think I know the answer, but will this alarm continue to repeat if the
phone is rebooted?
If not, should I use a Service instead? I want to use the alarm to send
out a Notification every few hours.
// AlarmActivity.java
public class AlarmActivity<AlarmController> extends Activity {
Toast mToast;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Watch for button clicks.
// Button button = (Button)findViewById(R.id.one_shot);
// button.setOnClickListener(mOneShotListener);
Button button = (Button)findViewById(R.id.start_repeating);
button.setOnClickListener(mStartRepeatingListener);
button = (Button)findViewById(R.id.stop_repeating);
button.setOnClickListener(mStopRepeatingListener);
}
private OnClickListener mStartRepeatingListener = new OnClickListener()
{
public void onClick(View v) {
// When the alarm goes off, we want to broadcast an Intent to
our
// BroadcastReceiver. Here we make an Intent with an explicit
class
// name to have our own receiver (which has been published in
// AndroidManifest.xml) instantiated and called, and then
create an
// IntentSender to have the intent executed as a broadcast.
// Note that unlike above, this IntentSender is configured to
// allow itself to be sent multiple times.
Intent intent = new Intent(AlarmActivity.this,
RepeatingAlarm.class);
PendingIntent sender =
PendingIntent.getBroadcast(AlarmActivity.this,
0, intent, 0);
// We want the alarm to go off 30 seconds from now.
long firstTime = SystemClock.elapsedRealtime();
firstTime += 5*1000;
// Schedule the alarm!
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
firstTime, 3*60*60*1000, sender);
// Tell the user about what we did.
if (mToast != null) {
mToast.cancel();
}
mToast = Toast.makeText(AlarmActivity.this,
"Started: Repeating Alarm (every 5s)",
Toast.LENGTH_SHORT);
mToast.show();
}
};
private OnClickListener mStopRepeatingListener = new OnClickListener() {
public void onClick(View v) {
// Create the same intent, and thus a matching IntentSender, for
// the one that was scheduled.
Intent intent = new Intent(AlarmActivity.this,
RepeatingAlarm.class);
PendingIntent sender =
PendingIntent.getBroadcast(AlarmActivity.this,
0, intent, 0);
// And cancel the alarm.
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
am.cancel(sender);
// Tell the user about what we did.
if (mToast != null) {
mToast.cancel();
}
mToast = Toast.makeText(AlarmActivity.this,
"Stopped: Repeating Alarm",
Toast.LENGTH_SHORT);
mToast.show();
}
};
}
// RepeatingAlarm.java
public class RepeatingAlarm extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
//HACK:
http://stackoverflow.com/questions/368094/system-currenttimemillis-vs-new-date-vs-calendar-getinstance-gettime
Toast.makeText(context, "Repeating Alarm now!",
Toast.LENGTH_SHORT).show();
// Send a notification.
}
}
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