How to get screen dimensions as pixels in Android

Here we are going to explain how we can get screen Width and screen Height of a device.

If you want the display dimensions in pixels you can use getSize():

Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;

If you're not in an Activity you can get the default Display via WINDOW_SERVICE:

WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);

Display display = wm.getDefaultDisplay();

If you are in a fragment and want to accomplish this just use Activity.WindowManager (in Xamarin.Android) or getActivity().getWindowManager() (in java).

Before getSize() was introduced (in API level 13), you could use the getWidth() and getHeight() methods that are now deprecated:

Display display = getWindowManager().getDefaultDisplay(); 

int width = display.getWidth();  // deprecated

int height = display.getHeight();  // deprecated

Another way is: DisplayMetrics

A structure describing general information about a display, such as its size, density, and font scaling. To access the DisplayMetrics() members, initialize an object like this:

DisplayMetrics metrics = new DisplayMetrics();

getWindowManager().getDefaultDisplay().getMetrics(metrics);

Log.d("ApplicationName", "Display width in px is " + metrics.widthPixels);