如何从手机启动 android wear 活动

Question

我一直在做一个项目，我需要手机上的一个按钮来启动手表上的活动。我一直在浏览 sdk 中的数据层示例，但无法使其正常工作。我设置了一个可穿戴监听服务类，但它没有接收任何消息。该服务已添加到清单中，但仍无法正常工作。我也有其他服务，我想我可能有太多服务。

在 Wear 手表上，是否必须运行某个 Activity 才能启动另一个 Activity？我希望手表在收到消息之前什么都不运行，这可能吗？

另外，磨损模块的编辑配置设置应该是什么？ （例如，不启动活动、启动默认值或从活动启动）我只希望可穿戴设备在收到消息时启动。

如果有人能指出我正确的方向，将不胜感激。

谢谢。

Answer 1

手机

访问可穿戴数据层

MainActivity.java

public class MainActivity extends Activity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener{
private GoogleApiClient mGoogleApiClient;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addApi(Wearable.API)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .build();
    mGoogleApiClient.connect();
}

@Override
public void onConnected(Bundle bundle) {
    Log.d("GoogleApi", "onConnected: " + bundle);
}

@Override
public void onConnectionSuspended(int i) {
    Log.d("GoogleApi", "onConnectionSuspended: " + i);
}

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
    Log.d("GoogleApi", "onConnectionFailed: " + connectionResult);
}

GetConnectedNodes

Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).setResultCallback(new ResultCallback<NodeApi.GetConnectedNodesResult>() {
                @Override
                public void onResult(NodeApi.GetConnectedNodesResult getConnectedNodesResult) {
                    for (Node node : getConnectedNodesResult.getNodes()) {
                        sendMessage(node.getId());
                    }
                }
            });

发送消息

public static final String START_ACTIVITY_PATH = "/start/MainActivity";


private void sendMessage(String node) {
        Wearable.MessageApi.sendMessage(mGoogleApiClient , node , START_ACTIVITY_PATH , new byte[0]).setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() {
            @Override
            public void onResult(MessageApi.SendMessageResult sendMessageResult) {
                if (!sendMessageResult.getStatus().isSuccess()) {
                    Log.e("GoogleApi", "Failed to send message with status code: "
                            + sendMessageResult.getStatus().getStatusCode());
                }
            }
        });
    }

穿戴

实现消息监听器

WearDataLayerListenerService.java

public class WearDataLayerListenerService extends WearableListenerService {
public static final String START_ACTIVITY_PATH = "/start/MainActivity";
@Override
public void onMessageReceived(MessageEvent messageEvent) {
    super.onMessageReceived(messageEvent);
    if(messageEvent.getPath().equals(START_ACTIVITY_PATH)){
        Intent intent = new Intent(this , MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);
    }
}}

将侦听器服务添加到清单

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