android - 如何为 Android Wear 使用 setOnApplyWindowInsetsListener

Question

我试图检测我的应用程序何时在圆形 Wear 设备上运行，但我无法通过此 post 使 OnApplyWindowInsetsListener 工作.

我可以将其附加到我的布局中的任何 View 对象，还是我的布局本身？什么时候调用？我无法让听众开火。任何代码示例将不胜感激。

我在我的 OnResume 方法中创建并添加这个 ImageView 到我的主布局:

backgroundImage = new ImageView(this);
    backgroundImage.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
        @Override
        public WindowInsets onApplyWindowInsets(View view, WindowInsets windowInsets) {
            if (windowInsets.isRound()){
                Log.d("DEVELOPER", "......screen is round");
            }
            Log.d("DEVELOPER", "......windowinsets called");
            return null;
        }
    });

Answer 1

根据我的经验，并非所有 View 都会调用此监听器。

同时检查文档: https://developer.android.com/reference/android/view/View.html#onApplyWindowInsets(android.view.WindowInsets)

使用 WatchViewStub 您可以轻松获得它:

WatchViewStub stub = (WatchViewStub) findViewById(R.id.stub);
stub.setOnApplyWindowInsetsListener(new View.OnApplyWindowInsetsListener() {
            @Override
            public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {

                if(insets.isRound()) {
                    // Yes device is round
                } 
                return null;
            }
        });

这里使用的布局:

<android.support.wearable.view.WatchViewStub
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/stub"
        app:rectLayout="@layout/rect_layout"
        app:roundLayout="@layout/round_layout"/>