Question

我需要你宝贵的帮助;）

我有 Android服务，在后台运行定期修复设备的位置（位置轮询 STRONG>）。当我使用使用Google Play服务的new Android Location API更新代码时。让我们来看看服务：

public class NewLocationPollerService extends Service implements GooglePlayServicesClient.ConnectionCallbacks, GooglePlayServicesClient.OnConnectionFailedListener
{
    private LocationRequest mLocationRequest    = null;
    private LocationClient  mLocationClient     = null;

    ...
    private class PollerThread extends WakefulThread
    {
        protected void onPreExecute()
        {
            if ( GooglePlayServicesUtility.areServicesConnected( NewLocationPollerService.this ) )
                mLocationClient.requestLocationUpdates(mLocationRequest, intent);
        }

        protected void onPostExecute()
        {
            if ( GooglePlayServicesUtility.areServicesConnected( NewLocationPollerService.this ) )
                mLocationClient.removeLocationUpdates(intent);

            super.onPostExecute();
        }
    }
    ...
}

方法“ areServicesConnected（）”如下：

public class GooglePlayServicesUtility
{
    private static final String TAG = GooglePlayServicesUtility.class.getSimpleName();

    public static boolean areServicesConnected(Context context)
    {
        int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(context);
        if (ConnectionResult.SUCCESS == resultCode)
            return true;
        else
            return false;
    }
    ...
}

有时服务崩溃和日志如下：

java.lang.IllegalStateException: Not connected. Call connect() and wait for onConnected() to be called.
at com.google.android.gms.internal.k.B(Unknown Source)
at com.google.android.gms.internal.bh.a(Unknown Source)
at com.google.android.gms.internal.bh$c.B(Unknown Source)
at com.google.android.gms.internal.bg.requestLocationUpdates(Unknown Source)
at com.google.android.gms.internal.bh.requestLocationUpdates(Unknown Source)
at com.google.android.gms.location.LocationClient.requestLocationUpdates(Unknown Source)
at     me.app.location.NewLocationPollerService$PollerThread.onPreExecute(NewLocationPollerService.java:210    )
at me.app.thread.WakefulThread.onLooperPrepared(WakefulThread.java:79)
at android.os.HandlerThread.run(HandlerThread.java:59)
at me.app.thread.WakefulThread.run(WakefulThread.java:94)

你怎么看？我读了similar post，但不是一回事。似乎有时候如果方法isServicesConnected（）返回true，稍后由于某些原因服务将被断开。

谢谢，非常感谢每一位帮助！

快乐的编码;）

Answer 1

isGooglePlayServicesAvailable并未告诉您已连接，只是检查服务的可用性。

你应该完全按照你的logcat做什么。致电LocationClient.connect()，一旦您的代码到达ConnectionCallbacks.onConnected的实施内容，您就会联系到我的问题。

新的Location API Android。错误“调用connect（）并等待onConnected（）被调用”

1 个答案: