I am having a Simple AutoStart Application with TimerTask implementation, that works fine in almost many devices. The problem is that it is not working in Samsung Galaxy Y(2.3.6) and DELL XCD35(2.2) . When the device boots TimerTask works for some seconds and then shuts down. I check in the Application->Manage Application , I saw that the Applcation was already in Force Stop State. That means some how my Application gets stopped after some seconds. So, what is the reason for this weird behaviour in these two devices, if anyone has the solution do share it.
Below is my code.
MyReceiver.java
public class MyReceiver extends BroadcastReceiver{
private Timer mTimer = new Timer();
@Override
public void onReceive(Context context, Intent arg1) {
Toast.makeText(context, "Device Booted", Toast.LENGTH_LONG).show();
Log.d("TAG","Device Booted");
mTimer.scheduleAtFixedRate(new MyTimerTask(), 2000,2000);
}
private class MyTimerTask extends TimerTask
{
@Override
public void run() {
Log.d("TAG","TimerTask executed....");
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.autostart.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<receiver android:name=".MyReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
</application>
</manifest>
Source: Tips4all
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I will suggest you to use AlarmManager instead of TimerTask, as I faced the same problem you described in many devices.
ReplyDeletepublic void onReceive(Context context, Intent arg1) {
Toast.makeText(context, "Device Booted", Toast.LENGTH_LONG).show();
Log.d("TAG","Device Booted");
AlarmManager AM =(AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent();
intent.setAction("ALARM_MANAGER_ACTION");//can add any string action here
PendingIntent pi = PendingIntent.getBroadcast(mContext
.getApplicationContext(), 0, intent,0);
AM.set(AlarmManager.RTC,selectedTime, pi);
AM.setRepeating(AM.RTC_WAKEUP, System.currentTimeMillis()+2000, 2000, pi);
}
public class MyReceiver1 extends BroadcastReceiver{
//event will come here
private Timer mTimer = new Timer();
@Override
public void onReceive(Context context, Intent arg1) {
// check if event is same as you broadcasted through alarmManager
Toast.makeText(context, "Device Booted", Toast.LENGTH_LONG).show();
Log.d("TAG","TimerTask executed....");
}
add a Broadcast receiver in your app, which should listen ("ALARM_MANAGER_ACTION") action. and add this action into manifest file.
I bet it will work in these two devices as well.
I think in some of the Android OS sometimes the OS kills the threads that are running while the Devices Boots which Android is not familiar with or doesn't recognize it. This is the reason why the TimerTask is working in some Devices and in some Devices just works for a 5-10 seconds and then the Application is ForceStopped automatically by the Android OS on Device Boot(Note - Its Force Stop from Manage Application and not Force close so I am not getting any error in the Logcat).
ReplyDeleteSo in that case the solution is to use the inbuilt Mechanism which Android OS recognizes and doesn't kill it and keeps it in a running mode. In this case I managed using AlarmManager to perform my task and it works.
I might not be right but my final solution was to use AlarmManager to make my Application working in every Device.
@Override
public void onReceive(Context context, Intent arg1) {
Log.v("Device Booted", "************ DEVICE BOOTED ******************");
Intent myIntent = new Intent(context, AlarmService.class);
PendingIntent pendingIntent = PendingIntent.
getService(context, 0, myIntent, 0);
AlarmManager alarmManager = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis() + 2000, 2000, pendingIntent);
}