Android: Calling non-static methods from a static Handler class

Question

Given this code:

public class MainActivity extends FragmentActivity implements ActionBar.TabListener {

public static final int MESSAGE_NOT_CONNECTED = 1;

@Over         


        

Answer 1

Since you are now using a WeakReference, mTarget.get() might return null. In your edited code, you are not checking if target is null before executing target.setStatus(R.string.title_not_connected). So this may throw a NullPointerException if the weakreference object has been GC'ed.