Android OutOfMemoryError:?

Question

I am sporadically getting an OutOfMemoryError: (Heap Size=49187KB, Allocated=41957KB) in one of my apps. What can I do to diagnose this?

  01-09         


        

Answer 1

This may happen if the bitmap resource is not disposed correctly. It is better to read the dimensions to see if it fits the memory. http://developer.android.com/training/displaying-bitmaps/load-bitmap.html

Answer 2

Common fixes:

1. Fix your contexts:

Try using the appropiate context: For example since a Toast can be seen in many activities instead of in just one, use getApplicationContext() for toasts, and since services can keep running even though an activity has ended start a service with:

Intent myService = new Intent(getApplicationContext(), MyService.class)

Use this table as a quick guide for what context is appropiate:

Original article on context here.

2. Check that you're actually finishing your services.

For example I have an intentService that use google location service api. And I forgot to call googleApiClient.disconnect();:

//Disconnect from API onDestroy()
    if (googleApiClient.isConnected()) {
        LocationServices.FusedLocationApi.removeLocationUpdates(googleApiClient, GoogleLocationService.this);
        googleApiClient.disconnect();
    }

3. Check image and bitmaps usage:

If you are using square's library Picasso I found I was leaking memory by not using the .fit(), that drastically reduced my memory footprint from 50MB in average to less than 19MB:

Picasso.with(ActivityExample.this)                   //Activity context
                .load(object.getImageUrl())           
                .fit()                                //This avoided the OutOfMemoryError
                .centerCrop()                         //makes image to not stretch
                .into(imageView);

4. If you are using broadcast receivers unregister them.

5. If you are using java.util.Observer (Observer pattern):

Make sure to to use deleteObserver(observer);