当我们阻止屏幕截图时如何举杯消息显示

Question

我要显示吐司消息“不能捕获截屏”

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,
                WindowManager.LayoutParams.FLAG_SECURE);
    setContentView(R.layout.activity_main);
}