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我有一個錶盤，我正在尋找使用數據層發送幾個字符串。我通過將該服務添加到清單並創建DataLayerListenerService類來遵循guide。通過WearableListenerService將數據發送到手機可穿戴
我該怎麼做才能將數據發送到服務的可穿戴設備？我已經在我的配置活動中使用PutDataRequest之前完成了這個工作。我現在想定期向可穿戴設備發送電池統計數據，天氣信息等。我該怎麼做呢？
這是到目前爲止我的類別：
public class DataLayerListenerService extends WearableListenerService {
private static final String TAG = DataLayerListenerService.class.getSimpleName();
public static final String EXTRAS_PATH = "/extras";
private static final String START_ACTIVITY_PATH = "/start-activity";
private static final String DATA_ITEM_RECEIVED_PATH = "/data-item-received";
private GoogleApiClient mGoogleApiClient;
public static void LOGD(final String tag, String message) {
if (Log.isLoggable(tag, Log.DEBUG)) {
Log.d(tag, message);
}
}
@Override
public void onCreate() {
super.onCreate();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.build();
mGoogleApiClient.connect();
}
@Override
public void onDataChanged(DataEventBuffer dataEvents) {
LOGD(TAG, "onDataChanged: " + dataEvents);
if (!mGoogleApiClient.isConnected() || !mGoogleApiClient.isConnecting()) {
ConnectionResult connectionResult = mGoogleApiClient
.blockingConnect(30, TimeUnit.SECONDS);
if (!connectionResult.isSuccess()) {
Log.e(TAG, "DataLayerListenerService failed to connect to GoogleApiClient, "
+ "error code: " + connectionResult.getErrorCode());
return;
}
}
// Loop through the events and send a message back to the node that created the data item.
for (DataEvent event : dataEvents) {
Uri uri = event.getDataItem().getUri();
String path = uri.getPath();
if (EXTRAS_PATH.equals(path)) {
// Get the node id of the node that created the data item from the host portion of
// the uri.
String nodeId = uri.getHost();
// Set the data of the message to be the bytes of the Uri.
byte[] payload = uri.toString().getBytes();
// Send the rpc
Wearable.MessageApi.sendMessage(mGoogleApiClient, nodeId, DATA_ITEM_RECEIVED_PATH,
payload);
}
}
}