Pg 645 - Crash on onPostExecute


Hi there, your chapter example works fine but the one I’ve built does not and I can’t work out the difference between my code and yours no matter what!

I get the location fix and the received JSON just fine, but then this happens:

Attempt to invoke virtual method ‘void android.widget.ImageView.setImageBitmap(’ on a null object reference

So the line mImageView.setImageBitmap(mBitmap); is crashing for me due to it being a null object, but I can’t see how it is a null object and your chapter example code does exactly the same and runs ok. Maybe something further up my code is wrong? Any ideas? I’ve compared what I can and it looks identical so far.


It looks like your ImageView is null. Are you sure it’s in your layout file? Does your findViewById call work and return an ImageView?