Get the screen height in Android

Question

How can I get the available height of the screen in Android? I need to the height minus the status bar / menu bar or any other decorations that might be on screen and I need it

Answer 1

final View view = findViewById(R.id.root);
ViewTreeObserver vto = view.getViewTreeObserver();
vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {
        // calculate the height in here...

        ViewTreeObserver vto = view.getViewTreeObserver();
        vto.removeGlobalOnLayoutListener(this);
    }
});

Use this listener inside onCreate (available since api 1). You will need to assign the id @+id/root to the parent in your xml layout. There is no way the size can return a result of 0, since this listener makes a callback whenever the layouts has been positioned in view.

Answer 2

If you want the 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) ctx.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
display.getSize(size);
int width = size.x;
int height = size.y;

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

Referred from : Get screen dimensions in pixels

Answer 3

Display currentDisplay = getWindowManager().getDefaultDisplay();
        float dw = currentDisplay.getWidth();
        float dh = currentDisplay.getHeight();

dh will give you the screen height.