Showing the terrible practice of having a static reference to a context

MainActivity.java

public class MainActivity extends LocationManagingActivity implements ActionBar.OnNavigationListener,
        GooglePlayServicesClient.ConnectionCallbacks,
        GooglePlayServicesClient.OnConnectionFailedListener {
            
    //...

    private static MeTrackerStore mMeTrackerStore; 
    
    //...
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        //...
        
        mMeTrackerStore = new MeTrackerStore(this);
    }
}