android 全屏显示

     //全屏显示        if (Build.VERSION.SDK_INT >= 19) {            View decorView = getWindow().getDecorView();            decorView.setSystemUiVisibility(                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION                            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN                            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION                            | View.SYSTEM_UI_FLAG_FULLSCREEN                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);        } else {            View decorView = getWindow().getDecorView();            int option = View.SYSTEM_UI_FLAG_FULLSCREEN;            decorView.setSystemUiVisibility(option);        }