Set ImageView width and height programmatically?

It may be too late but for the sake of others who have the same problem, to set the height of the ImageView:

imageView.getLayoutParams().height = 20;

Important. If you're setting the height after the layout has already been 'laid out', make sure you also call:

imageView.requestLayout();

If your image view is dynamic, the answer containing getLayout will fail with null-exception.

In that case the correct way is:

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(100, 100);iv.setLayoutParams(layoutParams);

This simple way to do your task:

setContentView(R.id.main);    ImageView iv = (ImageView) findViewById(R.id.left);int width = 60;int height = 60;LinearLayout.LayoutParams parms = new LinearLayout.LayoutParams(width,height);iv.setLayoutParams(parms);

and another way if you want to give screen size in height and width then use below code :

setContentView(R.id.main);    Display display = getWindowManager().getDefaultDisplay();ImageView iv = (LinearLayout) findViewById(R.id.left);int width = display.getWidth(); // ((display.getWidth()*20)/100)int height = display.getHeight();// ((display.getHeight()*30)/100)LinearLayout.LayoutParams parms = new LinearLayout.LayoutParams(width,height);iv.setLayoutParams(parms);

hope use full to you.