我正在执行here所述的相同步骤（Google Fit客户端连接部分工作正常）。
final DataType dataType=TYPE_STEP_COUNT_DELTA;
DataSourcesRequest requestData = new DataSourcesRequest.Builder()
.setDataTypes(dataType) // At least one datatype must be specified.
.build();
Fitness.SensorsApi.findDataSources(mClient, requestData)
.setResultCallback(new ResultCallback<DataSourcesResult>() {
@Override
public void onResult(DataSourcesResult dataSourcesResult) {
Log.i(TAG, "Result: " + dataSourcesResult.getDataSources().size() + " sources "
+ dataSourcesResult.getStatus().toString());
for (DataSource dataSource : dataSourcesResult.getDataSources()) {
Log.i(TAG, "Data source found: " + dataSource.toString());
Log.i(TAG, "Data Source type: " + dataSource.getDataType().getName());
}
}
});
当我要求数据源时，我只得到一个结果就是智能手机。如果我添加一个监听器，那么我真的得到数据，所以它正在工作。
然而，它还与手机上的Android Wear智能手表Gear Live和Android Wear应用程序相关联。 Google Fit已安装在两者中，但我想从智能手表获取数据。
在我阅读的官方指南中
Sensors API提供对原始传感器数据流的访问 Android设备上提供的传感器和可用的传感器 配套设备，例如可穿戴设备。
此代码正在智能手机上运行，所以我认为从配套智能手表中获取数据源也是正确的。但它就像我的手机应用程序看不见。难道我做错了什么？
编辑：
public class MainActivity extends AppCompatActivity {
private final static String TAG = "main_mobile";
private static final int REQUEST_OAUTH = 1;
private final static String DATE_FORMAT = "yyyy.MM.dd HH:mm:ss";
private static final String AUTH_PENDING = "auth_state_pending";
private boolean authInProgress = false;
private GoogleApiClient mClient = null;
private final static DataType dataType = TYPE_STEP_COUNT_DELTA;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (savedInstanceState != null) {
authInProgress = savedInstanceState.getBoolean(AUTH_PENDING);
}
mClient = new GoogleApiClient.Builder(this)
.addApi(Fitness.SENSORS_API)
.addApi(Fitness.RECORDING_API)
.addApi(Fitness.HISTORY_API)
.addScope(new Scope(Scopes.FITNESS_ACTIVITY_READ_WRITE))
.addConnectionCallbacks(connectionCallbacks)
.addOnConnectionFailedListener(connectionFailCallbacks)
.build();
}
private void initFitness() {
DataSourcesRequest requestData = new DataSourcesRequest.Builder()
.setDataTypes(dataType)
.build();
Fitness.SensorsApi.findDataSources(mClient, requestData)
.setResultCallback(new ResultCallback<DataSourcesResult>() {
@Override
public void onResult(DataSourcesResult dataSourcesResult) {
Log.i(TAG, "Result: " + dataSourcesResult.getDataSources().size() + " sources " + dataSourcesResult.getStatus().toString());
for (DataSource dataSource : dataSourcesResult.getDataSources()) {
Log.i(TAG, "\nData source found: \n\t" + dataSource.toString() + "\n\tType: " + dataSource.getDataType().getName());
}
}
});
}
@Override
protected void onStart() {
super.onStart();
Log.i(TAG, "Connecting...");
mClient.connect();
}
@Override
protected void onStop() {
super.onStop();
if (mClient.isConnected()) {
mClient.disconnect();
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean(AUTH_PENDING, authInProgress);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_OAUTH) {
authInProgress = false;
if (resultCode == RESULT_OK) {
// Make sure the app is not already connected or attempting to connect
if (!mClient.isConnecting() && !mClient.isConnected()) {
mClient.connect();
}
}
}
}
GoogleApiClient.ConnectionCallbacks connectionCallbacks = new GoogleApiClient.ConnectionCallbacks() {
@Override
public void onConnected(Bundle bundle) {
Log.i(TAG, "Connected!!!");
// Now you can make calls to the Fitness APIs.
// Put application specific code here.
initFitness();
}
@Override
public void onConnectionSuspended(int i) {
// If your connection to the sensor gets lost at some point,
// you'll be able to determine the reason and react to it here.
if (i == GoogleApiClient.ConnectionCallbacks.CAUSE_NETWORK_LOST) {
Log.i(TAG, "Connection lost. Cause: Network Lost.");
} else if (i == GoogleApiClient.ConnectionCallbacks.CAUSE_SERVICE_DISCONNECTED) {
Log.i(TAG, "Connection lost. Reason: Service Disconnected");
}
}
};
GoogleApiClient.OnConnectionFailedListener connectionFailCallbacks = new GoogleApiClient.OnConnectionFailedListener() {
// Called whenever the API client fails to connect.
@Override
public void onConnectionFailed(ConnectionResult result) {
Log.i(TAG, "Connection failed. Cause: " + result.toString());
if (!result.hasResolution()) {
// Show the localized error dialog
GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), MainActivity.this, 0).show();
return;
}
// The failure has a resolution. Resolve it.
// Called typically when the app is not yet authorized, and an
// authorization dialog is displayed to the user.
if (!authInProgress) {
try {
Log.i(TAG, "Attempting to resolve failed connection");
authInProgress = true;
result.startResolutionForResult(MainActivity.this, REQUEST_OAUTH);
} catch (IntentSender.SendIntentException e) {
Log.e(TAG, "Exception while starting resolution activity", e);
}
}
}
};
}
答案 0 :(得分：7)
我没有尝试过这些。
似乎三星Gear Live传感器不支持开箱即用，但您可以通过software sensors使其正常工作：
如this SO answer所述，
Samsung Gear Live手表不会将自己宣传为BLE heart rate monitor，因此不会生成心率数据 通过普通Bluetooth Low Energy API或Google提供 基于它的Fit API。
Google Fit支持移动设备上的传感器和 蓝牙低功耗传感器与设备配对。谷歌健身让 开发人员实现对其他传感器的支持并将其公开为 Android应用中的软件传感器。 Google Fit支持的传感器是 可用于Android应用作为数据源对象。
implement additional software sensors似乎有可能。
（复制的模板位于帖子的底部，因为它很长）。
您可以在get-heart-rate-from-sensor-samsung-gear-live之后获取有关可穿戴设备的数据。
将此添加到您的清单文件中：
<service android:name="com.example.MySensorService" android:process=":sensor"> <intent-filter> <action android:name="com.google.android.gms.fitness.service.FitnessSensorService"/> <!-- include at least one mimeType filter for the supported data types --> <data android:mimeType="vnd.google.fitness.data_type/com.google.heart_rate.bpm"/> </intent-filter> </service>
并将此Service加出来：
import com.google.android.gms.common.*; import com.google.android.gms.common.api.*; import com.google.android.gms.fitness.*; import com.google.android.gms.fitness.data.*; import com.google.android.gms.fitness.service.*; ... public class MySensorService extends FitnessSensorService { @Override public void onCreate() { super.onCreate(); // 1. Initialize your software sensor(s). // 2. Create DataSource representations of your software sensor(s). // 3. Initialize some data structure to keep track of a registration for each sensor. } @Override protected List<DataSource> onFindDataSources(List<DataType> dataTypes) { // 1. Find which of your software sensors provide the data types requested. // 2. Return those as a list of DataSource objects. } @Override protected boolean onRegister(FitnessSensorServiceRequest request) { // 1. Determine which sensor to register with request.getDataSource(). // 2. If a registration for this sensor already exists, replace it with this one. // 3. Keep (or update) a reference to the request object. // 4. Configure your sensor according to the request parameters. // 5. When the sensor has new data, deliver it to the platform by calling // request.getDispatcher().publish(List<DataPoint> dataPoints) } @Override protected boolean onUnregister(DataSource dataSource) { // 1. Configure this sensor to stop delivering data to the platform // 2. Discard the reference to the registration request object } }