Making image full screen on android tutorial app

Question

Using the Hello, World Gridview tutorial example, I am attempting to make the image fullscreen on click instead of display the position of the image in the array. As I am u

Answer 1

Here, you're taking the ID of the view that was clicked (passed in the view argument) and using it to look up itself again:

ImageView imgView = (ImageView) findViewById(view.getId()); 

That makes no sense, especially since the clicked view apparently has no ID, causing findViewById to return null.

You probably want to pass the ID of your ImageView instead:

ImageView imgView = (ImageView) findViewById(R.id.whatever_the_id_of_the_image_view_is);