Can I find out width of screen programmatically in android app?

Question

Can I find out the width of screen programmatically in android app? I need to paint canvas but its width should be almost like screen and I could not set match_parent in java part program.

Answer 1

You can get default Display instance and then read width/height from it:

int width = getWindowManager().getDefaultDisplay().getWidth();
int height = getWindowManager().getDefaultDisplay().getHeight();

Answer 2

You can do this:

DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);

dm.widthPixels contains the width and dm.heightPixels contains the height.

Answer 3

You could also overwrite onSizeChanged(int,int,int,int) in any view and set it in there.