android - GoogleApiClient onConnected 从未在可穿戴设备上调用

Question

我有一个可穿戴设备，我正在尝试连接到 GoogleApiClient，但从未调用回调(onConnected、onConnectionSuspended 或 onConnectionFailed)。其他一切工作正常，DataLayerListenerService 能够从手持设备接收消息，并且在连接时调用 onPeerConnected。我在模拟器和三星 Gear Live 设备上都试过了。这是我在尝试连接到 GoogleApiClient 的 Activity 中的代码。

public class WearReaderActivity extends Activity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
    public static final String CONTENT_EXTRA = "contentExtra";
    private String LOG_TAG = WearReaderActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.reader);
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(Wearable.API)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();
    }

    private GoogleApiClient mGoogleApiClient;

    @Override
    protected void onStart() {
        super.onStart();
        Log.e("Connected?", String.valueOf(mGoogleApiClient.isConnected()));
        //new Thread(new GetContent()).start();
    }

    @Override
    public void onConnected(Bundle bundle) {
        Log.d("Connected", "Connected");
        new Thread(new GetContent()).start();
    }

    @Override
    public void onConnectionSuspended(int i) {
        Log.d("Connection suspened", "Connection suspended");
    }

    @Override
    public void onConnectionFailed(ConnectionResult connectionResult) {
        Log.d("Connection suspened", "Connection suspended");
    }
...
}

不确定是否有帮助，但这是我的可穿戴应用 list

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="my.packagename">
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.DeviceDefault" >
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

    <activity
        android:name=".WearReaderActivity"
        android:label="Reading" >
        <intent-filter>
           <action android:name="android.intent.action.MAIN" />
           <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

<meta-data android:name="com.google.android.gms.version"
       android:value="@integer/google_play_services_version" />

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

</application>

有什么想法吗？

编辑:在可穿戴 list 中添加了以下内容，但仍然无法正常工作

<meta-data android:name="com.google.android.gms.version"
           android:value="@integer/google_play_services_version" />

Answer 1

哇哦，答案简单得令人尴尬。我错过了在 onStart() 中需要调用 mGoogleApiClient.connect() 的部分。