CODEWITHSUNDEEP
javaandroid
AM031447
AM031447

Reputation: 495

I tried using 'AlarmManager' set the alarm, but did not succeed, what went wrong?

I followed the teaching tried to register the alarm, it should display "TEST" After five seconds,but it did not show any edit- Although you want to do it for five seconds after the alarm, but actually they want to be executed in a fixed time every day -

I should have done all settings, is where it went wrong?

--- AndroidManifest.xml

        <receiver android:name=".AlarmClass" android:process=".abc">//What is the role of .abc?
    </receiver>

---MainActivity.java

    public void AddAlarm(View view){
    AlarmManager alm;
    PendingIntent pen;
    Calendar cal;

    SimpleDateFormat formatter = new SimpleDateFormat("yyyy;MM;dd;HH;mm;ss");
    Date curDate = new Date(System.currentTimeMillis()) ; 
    String str = formatter.format(curDate);
    String[] aArray = str.split(";");//Split time string

    cal = Calendar.getInstance();
    cal.set(Integer.parseInt(aArray[0]), Integer.parseInt(aArray[1]), Integer.parseInt(aArray[2]), Integer.parseInt(aArray[3]), Integer.parseInt(aArray[4]), Integer.parseInt(aArray[5]) + 3);
    Intent intent = new Intent(this,AlarmClass.class);
    alm = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
    pen = PendingIntent.getBroadcast(this,0,intent,PendingIntent.FLAG_ONE_SHOT);//If I want to set multiple alarms should change the second argument?
    alm.set(AlarmManager.RTC_WAKEUP,cal.getTimeInMillis(),pen);
}

---AlarmCless.java

public class AlarmClass extends BroadcastReceiver {
@Override
public void onReceive (Context context,Intent intent){
        Toast.makeText(context, "TEST", Toast.LENGTH_LONG).show();
}

}

And if I want to set multiple alarms, for example, five seconds and ten seconds later, passing different parameters For example

Toast.makeText(context, teststring, Toast.LENGTH_LONG).show();

But 'teststring' appear differently, how do?

Upvotes: 0

Views: 59

Answers (1)

Kartheek
Kartheek

Reputation: 7214

Specify the action tag for the receiver in Manifest.xml

 <receiver android:name=".AlarmClass" android:process=".abc">
   <action android:name="your_action" />
 </receiver>

Here android:process=".abc" specifies the name of the process in which the broadcast receiver should run.
Declare an intent for sending the broadcast.

  Intent intent = new Intent("your_action");
    alm = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);

Declare PendingIntent with its own notification id, bacause no two notification should has the same id, it they has the same id they get overrided.

pen = PendingIntent.getBroadcast(this,notification_id,intent,PendingIntent.FLAG_ONE_SHOT);//If I want to set multiple alarms should change the second argument?

Since you need to send the broadcast after 5sec form now use System.currentTimeMillis()+5000

alm.set(AlarmManager.RTC_WAKEUP,System.currentTimeMillis()+5000,pen);

If you want to send another broadcast after 10sec then follow same above procedure but with different notification_id and use System.currentTimeMillis()+10000 instead of System.currentTimeMillis()+5000

Upvotes: 1

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