How do you setLayoutParams() for an ImageView?

Question

I want to set the LayoutParams for an ImageView but cant seem to find out the proper way to do it.

I can only find documentation in the API for the various ViewGroups, but not an ImageView. Yet the ImageView seems to have this functionality.

This code doesn't work...

myImageView.setLayoutParams(new ImageView.LayoutParams(30,30)); 

How do I do it?

Answer 1

You need to set the LayoutParams of the ViewGroup the ImageView is sitting in. For example if your ImageView is inside a LinearLayout, then you create a

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(30, 30); yourImageView.setLayoutParams(layoutParams); 

This is because it's the parent of the View that needs to know what size to allocate to the View.

Answer 2

Old thread but I had the same problem now. If anyone encounters this he'll probably find this answer:

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(30, 30); yourImageView.setLayoutParams(layoutParams); 

This will work only if you add the ImageView as a subView to a LinearLayout. If you add it to a RelativeLayout you will need to call:

RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(30, 30); yourImageView.setLayoutParams(layoutParams);