我创建一个Android应用程序磨损延伸推送通知。我的应用程序从服务器下载大约10时，图像推送通知进来，对手表显示这些额外的图像。这些图像是具体到Android磨损应用程序和手持设备上不显示。

I am creating an android wear app that extends push notifications. My app downloads approximately 10 images from a server when a push notification comes in and displays these additional images on the watch. These images are specific to the android wear app and are not shown on the handheld device.

我如何判断手持设备搭配一个Android设备的磨损，这样我可以决定是否有必要下载所需磨损应用程序中的其他图像？

How do I tell if the handheld device is paired with an android wear device so that I can determine if it is necessary to download the additional images required for the wear app?

谢谢！

推荐答案

您需要使用 NodeApi ，特别是 NodeApi.getConnectedNodes（） 。

You need to use the NodeApi, in particular NodeApi.getConnectedNodes().

例如（从后台线程 - 以其它方式使用 setResultCallback（），而不是等待（））：

For example (from a background thread -- otherwise use setResultCallback() and not await()):

List<Node> connectedNodes =
    Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).await().getNodes();

如果返回的节点的列表包含至少一个元素，则有一连接Android Wear装置，否则有不

If the list of nodes returned contains at least one element, then there is a connected Android Wear device, otherwise there isn't.

更新：随着的谷歌播放服务7.3 ，可同时连接多台Android Wear设备的支持已被添加。您可以使用 CapabilityApi 请求节点具有特定的功能。

Update: With the release of Google Play Services 7.3, support for multiple Android Wear devices connected simultaneously has been added. You can use the CapabilityApi to request nodes with specific capabilities.