Android穿戴式：如何处理连接设备的事件？ [英] Android wearables: How to handle the event of a connected device?

问题描述

从智能手表，我想拦截连接到智能手机的事件。这是由Android和Android的自动管理的穿，所以我需要从上表运行我的应用程序获取此事件。

From the smartwatch I'd like to intercept the event of the connection to a smartphone. This is automatically managed by Android and Android Wear so I need to get this event from my app running on the watch.

我发现这对WearableAPI没有投票Wearable.NodeApi.getConnectedNodes被通知

I found out this on WearableAPI to be notified without polling Wearable.NodeApi.getConnectedNodes

public class MyService extends WearableListenerService {
  @Override
  public void onPeerConnected(Node peer) {
    Log.i("my wear service", "connected");
    super.onPeerConnected(peer);
    // here I would use MessageAPI to send data saved on "disk" to the smartphone
  }
}

这是不是正确的方式？因此，这是一个正常的服务？我一定要启动它，或者它会自动在后台运行？
是否有任何其他的方法来完成这项任务？

Is it the right way? So is this a normal Service? Do I have to start it or is it automatically running in background? Are there any other ways to perform this task?

这是<一个href=\"https://developers.google.com/android/reference/com/google/android/gms/wearable/WearableListenerService\"相对=nofollow>引用

推荐答案

要穿戴式和手持式应用程序，我强烈建议你使用 Wearable.DataApi 之间交换数据或 Wearable.MessageApi 。你可能会想有 WearableListenerService 在两侧运行和处理通信 onDataChanged / <$的子类C $ C> onMessageReceived 。它们对超类的空的实现。所以，你必须重写你需要的。如果您使用 DataApi 你必须重写 onDataChanged ， onMessageReceived 其他。

to exchange data between the wearable and the handheld app I strongly suggest you to use the Wearable.DataApi or the Wearable.MessageApi. You will probably want to to have a subclass of WearableListenerService running on both side, and handling the communication onDataChanged/onMessageReceived. They have an empty implementation on the super class. So you have to override the one you need. If you use the DataApi you'll have to override onDataChanged, onMessageReceived otherwise.

我一定要启动它，或者它会自动在后台运行

Do I have to start it or is it automatically running in background

您必须声明在清单的子类，并使用 BIND_LISTENER 作为动作，

you have to declare your subclass in the manifest, and use BIND_LISTENER as action,

<intent-filter>
   <action android:name="com.google.android.gms.wearable.BIND_LISTENER"/>
</intent-filter>

Android的负责剩下的照顾。

Android takes care of the rest.

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