DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
System.out.println("heigth1 : " + dm.heightPixels);
System.out.println("width1 : " + dm.widthPixels);
DisplayMetrics dm2 = getResources().getDisplayMetrics();
System.out.println("heigth2 : " + dm2.heightPixels);
System.out.println("width2 : " + dm2.widthPixels);
Display display = getWindowManager().getDefaultDisplay();
System.out.println("width-display :" + display.getWidth());
System.out.println("heigth-display :" + display.getHeight());