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Android: Get the screen resolution / pixels as integer values

Posted by: admin May 14, 2020 Leave a comment


this is a really simple question on which I’ve found no answer :/
How can I quickly access the screen resolution (width, height) as integer values?

I’ve tried this one, but it always shows zero on my emulator:

DisplayMetrics dm = new DisplayMetrics();
int width = dm.widthPixels / 2;

In my case I want to dynamically create a table with tableRows, each containing two cols. This cols all shall fill half of the screen in width.

Can someone give me a hint?

How to&Answers:

The easiest way will be to implement onSizeChanged. You are probably getting a value of 0 because the view hasn’t initialized yet. You can’t call the above code in the View constructor for example.


The trashkalmar answer is correct.

However, the results will be specific to the activity context. If you want the whole device screen resolution:

DisplayMetrics displayMetrics = new DisplayMetrics();
WindowManager wm = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE); // the results will be higher than using the activity context object or the getWindowManager() shortcut
int screenWidth = displayMetrics.widthPixels;
int screenHeight = displayMetrics.heightPixels;

Note that the results also depend on the current device orientation.


You can get screen metrics in this way:

Display d = ((WindowManager)getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int width = d.getWidth();
int height = d.getHeight();


1.Simply use This inside activity to get screen width and height pixels.

DisplayMetrics metrics = new DisplayMetrics();
int width = metrics.widthPixels;
int height = metrics.heightPixels;

2.This can also be used But requires Api level inlined check

Display display = getWindowManager().getDefaultDisplay();

Point size = new Point();
    int width2 = size.x;
    int height2 = size.y;

} else {
    int width2 = display.getWidth();
    int height2 = display.getHeight();

3.Use This when you are not in activity but having context

WindowManager wm = (WindowManager) context.getSystemService(
Display display1 = wm.getDefaultDisplay();
Point size1 = new Point();

int width1;
int height1;


    width1 = size1.x;
    height1 = size1.y;

} else {
    width2 = display.getWidth();
    height2 = display.getHeight();


I use the following:

int scrWidth  = getWindowManager().getDefaultDisplay().getWidth();
int scrHeight = getWindowManager().getDefaultDisplay().getHeight();

No muss, no fuss, just 2 class variables