“AmbientLifecycleObserver”是抽象的;无法实例化

谷歌更新了WearOS中环境模式的工作方式,但我在实现这些更改时遇到了问题。

这是他们做出的改变: https://android-review.googlesource.com/c/platform/frameworks/support/+/2534423

重命名AmbientLifecycleObserverInterface->环境生命周期观察者

问题是我现在收到以下错误消息:

“AmbientLifecycleObserver”是抽象的;无法实例化

我的代码看起来与他们提供的示例代码完全相同:

https://android-review.googlesource.com/c/platform/frameworks/support/+/2534423/4/wear/wear-samples-ambient/src/main/java/androidx/wear/samples/ambient/MainActivity.kt

所以我对自己做错了什么感到困惑。这是的代码 AmbientLifecycleObserver 以下为:

https://android-review.googlesource.com/c/platform/frameworks/support/+/2534423/4/wear/wear/src/main/java/androidx/wear/ambient/AmbientLifecycleObserver.kt

这是我的代码:

private AmbientLifecycleObserver mAmbientLifecycleObserver;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //getting error 'AmbientLifecycleObserver' is abstract; cannot be instantiated
    mAmbientLifecycleObserver = new AmbientLifecycleObserver(this, mAmbientCallback);
            
    getLifecycle().addObserver(mAmbientLifecycleObserver);
}



final AmbientLifecycleObserver.AmbientLifecycleCallback mAmbientCallback = new AmbientLifecycleObserver.AmbientLifecycleCallback() {

    @Override
    public void onEnterAmbient(@NonNull AmbientLifecycleObserver.AmbientDetails ambientDetails) {

    }

    @Override
    public void onUpdateAmbient() {

    }

    @Override
    public void onExitAmbient() {

    }
};