Android gridview wont fill screen - only small with scroll

Question

My problem is the gridView is only about 1 row high with a scroll bar and I cannot get it to fill the screen. You have to scroll down to see the other rows. I don't understand what variable makes it fill the screen or the space it has available - I have tried changing the obvious ones.

GridView gridview = (GridView) findViewById(R.id.gridview);

gridview.setAdapter(new ImageAdapter(this);
  

Answer 1

Try setting layout_with and layout_height to fill_parentin your XML layout

or

You have to set programmatically the layout params of your GridView based on its parent type like RelativeLayoutLayoutParams, LinearLayout.LayoutParams...

gridView.setLayoutParams(new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); // for example with RelativeLayout