android activity设置全屏以及Android获得屏幕的宽和高

android activity设置全屏
            requestWindowFeature(Window.FEATURE_NO_TITLE);

Android获得屏幕的宽和高

    int screenWidth;
    int screenHeight;

    WindowManager windowManager = getWindowManager();

    Display display = windowManager.getDefaultDisplay();
    screenWidth = display.getWidth();
    screenHeight = display.getHeight();