Android隐藏标题设置全屏，设置背景

//隐藏标题
        getWindow().requestFeature(Window.FEATURE_NO_TITLE);
        // 全屏
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
        // 设置背景
        getWindow().setBackgroundDrawableResource(R.drawable.splash);