简短摘要:我正在尝试使用PutDataRequest和GoogleApiClient将Android Wear Watch 中的数据发送到Android手机 . 日志似乎表明数据已成功发送,但onDataChanged永远不会触发 . 我使用的是Android Studio 1.0.2 . 我没有使用任何模拟器,而是使用我自己的Android Wear Watch - 我已配对并通过手机上的Android Wear设备和Android Wear应用程序启用调试 . 在手机和Wear的AndroidManifest.xml上,我都包含了com.google.android.gms.version .
在Android手机(Android 4.4.4版本)上,我使用了一个侦听器服务,该服务通过AndroidManifest.xml绑定,并通过手机上的主要活动启动 . 从日志中,我可以确认在手机上成功创建了服务,但是没有收到任何数据(onDataChanged永远不会触发 - 准确地说) .
<!-- Phone manifest, registers the listener -->
<service android:name=".DataLayerListenerService" >
<intent-filter>
<action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
</intent-filter>
</service>
这是在手机上运行的监听服务:
public class DataLayerListenerService extends WearableListenerService {
private static final String TAG = DataLayerListenerService.class.getName();
private GoogleApiClient mGoogleApiClient;
private static final String WEARABLE_DATA_PATH = "/audio";
@Override
public void onCreate() {
// I can see this fires properly on the Android mobile phone
Logger.d(TAG, "onCreate");
}
@Override
public void onDataChanged(DataEventBuffer dataEvents) {
// This never fires on the Android mobile phone, even though Wear says data was sent successfully
Logger.d(TAG, "on change");
}
}
在Wear设备上,我有一个主要活动,可以创建一个Google API客户端 . 我使用UI按钮从音频生成输入(代码未显示),我知道这是因为日志记录正常工作 . 然后我尝试将这些数据从磨损设备发送到手机 . 在日志中,我看到“结果可用 . 状态:状态{statusCode = SUCCESS,resolution = null}”(我使用结果回调来跟踪) .
public class MainActivity extends Activity implements
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
private static final String TAG = MainActivity.class.getName();
private static final int SPEECH_REQUEST_CODE = 1;
private static final int RECORDER_SAMPLERATE = 44100;
private static final int RECORDER_CHANNELS = AudioFormat.CHANNEL_IN_STEREO;
private static final int RECORDER_AUDIO_ENCODING = AudioFormat.ENCODING_PCM_16BIT;
private TextView mTextView;
private AudioRecord recorder;
private int bufferSize = 0;
private Thread recordingThread = null;
private GoogleApiClient mGoogleApiClient;
private volatile boolean isRecording;
@Override
protected void onCreate(Bundle savedInstanceState) {
Log.d(TAG, "Creating MainActivity");
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
mTextView = (TextView) stub.findViewById(R.id.text);
}
});
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
}
// Connect to the data layer when the Activity starts
@Override
protected void onStart() {
super.onStart();
mGoogleApiClient.connect();
}
protected void onResume() {
if (null != mGoogleApiClient && !mGoogleApiClient.isConnected()) {
mGoogleApiClient.connect();
}
super.onResume();
}
@Override
protected void onStop() {
if (null != mGoogleApiClient && mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
super.onStop();
}
// Placeholders for required connection callbacks
@Override
public void onConnectionSuspended(int cause) {
Log.d(TAG, "Connection suspended");
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Log.d(TAG, "Connection failed");
}
@Override
public void onConnected(Bundle connectionHint) {
Log.d(TAG, "Connected successfully");
}
// This is invoked from the UI, via a helper method not shown. Logs show the method is invoked fine.
private void processRawAudioData() {
byte data[] = new byte[bufferSize];
int read = 0;
while(isRecording) {
read = recorder.read(data, 0, bufferSize);
if(AudioRecord.ERROR_INVALID_OPERATION != read) {
Log.d(TAG, "Successfully read " + data.length + " bytes of audio");
Log.d(TAG, "Initial ten bytes: " + data[0] + data[1] + data[2] + data[3]
+ data[4] + data[5] + data[6] + data[7] + data[8] + data[9] + data[10]);
Asset myAsset = Asset.createFromBytes(data);
PutDataRequest request = PutDataRequest.create("/audio");
// might need to change time each time for other end to see change.
request.putAsset("profileImage", myAsset);
PendingResult<DataApi.DataItemResult> result =
Wearable.DataApi.putDataItem(mGoogleApiClient, request);
result.setResultCallback(new ResultCallback<DataApi.DataItemResult>() {
@Override
public void onResult(DataApi.DataItemResult dataItemResult) {
// LOGS SHOW STATUS "MainActivity﹕ result available. Status: Status{statusCode=SUCCESS, resolution=null}"
Log.d(TAG, "result available. Status: " + dataItemResult.getStatus());
}
});
}
}
}
}
6 回答
为了使
WearableListenerService
触发'onDataChanged'
事件,main app
和可穿戴应用中的applicationId's
必须匹配(build.gradle files
) .另外,你不能发送静态数据,数据必须改变 . 这意味着PutDataMapRequest对象中的数据必须更改 .
我遇到了同样的问题,根据我在Google开发人员上所读到的内容,onDataChanged将永远不会在设备上触发,因为它不会侦听来自可穿戴设备的事件:
https://developer.android.com/training/wearables/data-layer/events.html#Listen
在send dataapimap map.put中添加一个键值(“timestamp”,System.currentmillions())
你的onReceive被调用了吗?
我有一个类似的问题,手持设备发送数据,但不会调用监听器服务 . 这是由于app和磨损gradle文件之间的不一致 .
我的应用程序有多种口味,我不得不删除,并使得成绩与磨损相同,并在那之后顺利工作
你有没有在听众方应用程序中添加 Wearable.DataApi.addListener() ?
好的,所以我遇到了同样的问题,我发现事件是从手机发送的时候我没有连接,所以我从来没有看过它 . 关键是: onDataChanged() will not fire unless the GoogleApiClient is connected and listening at the time of sending. 重新连接后,它似乎没有向您发送您错过的事件;您必须在connect()时手动轮询错过的DataItems .
至少,这对我来说似乎是一个错误:我希望onDataChanged()可以触发客户端断开连接时发送的任何事件 . 我假设错了吗?
无论如何,这是我每次连接时手动轮询我错过的事件的方式: