Android : Starting a Service from an Intent service

Question

I have got the Activity Recognition Intent Service form the Location API running in my app. I would like to start a service when the user activity changes. But I cant seem to get it work. Here is what I have tried:

In the Intent Service class for the activity recognition intent service: (Edit: Added a log to the if condition.)

 @Override
 protected void onHandleIntent(Intent intent) 
 {
        // Get the update
        ActivityRecognitionResult result = ActivityRecognitionResult.extractResult(intent);

        // Get the most probable activity from the list of activities in the update
        DetectedActivity mostProbableActivity = result.getMostProbableActivity();

        // Get the type of activity
        int currentActivity = mostProbableActivity.getType();      

        if(currentActivity == DetectedActivity.IN_VEHICLE)
        {
            Log.w("Rakshak", "in the if condition"); <-- this gets posted.
            sendNotification(); // this just send a notification that the service has started. 
            Intent i = new Intent(this, MyService.class);
            intent.setAction("start");
            startService(i);   <-- this dose'nt start the service. 

        }
}

In the Manifest:

 <uses-permission android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION" />

 <application
     ....

     <service android:name="driver.rakshak.drivetrackeradmin.MyService"/>    

    <service android:name="driver.rakshak.drivetrackeradmin.ActivityRecognitionIntentService"/>  
 </application>

I have got a button that the user can click to manually start the service and that works fine. It is only here when I would like the service to start automatically it doesn't work.

The app doesn't crash so I don't have any errors form the log to post.

Let me know if you need to see any more of the code.

Cheers.

Answer 1

Since the Context of the IntentService is destroyed after onHandleIntent returns, the Intent created by

Intent i = new Intent(this, MyService.class);

isn't valid anymore.

Try creating your Intent via getApplicationContext()

Intent i = new Intent(getApplicationContext(), MyService.class);

This might solve this issue.