Question

我正在使用GoogleApiClient通过侦听android.intent.action.BOOT_COMPLETED的BroadcastReceiver侦听在启动时启动的服务上的位置。

    @Override
    public void onReceive(Context context, Intent intent) {
        Intent serviceA = new Intent(context, ServiceA.class);
        startWakefulService(context, serviceA);
    }

在我使用的服务上：

    mGoogleApiClient = new GoogleApiClient.Builder(ServiceB.this)
        .addConnectionCallbacks(mConnectionCallbacks)
        .addOnConnectionFailedListener(mOnConnectionFailedListener)
        .addApi(LocationServices.API).build();
    mGoogleApiClient.connect();

服务在启动时启动，但我的问题是mConnectionCallbacks和mOnConnectionFailedListener都没有被调用。

我正在做的事情有什么问题。当我在活动或活动开始的服务上使用它时，这种调用GoogleApiClient的方式很有效。

谢谢

Answer 1

import com.google.android.gms.common.ConnectionResult;

import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationServices;

public class YourActivity extends Activity implements  GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener    {

protected GoogleApiClient mGoogleApiClient;

@Override
public void onCreate() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}


@Override
protected void onStart() {
super.onStart();


ConnectivityManager cm =
(ConnectivityManager) getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean isConnected = activeNetwork != null &&
activeNetwork.isConnectedOrConnecting();


if (isConnected) {


mGoogleApiClient.connect();

}

}


/**
* Runs when a GoogleApiClient object successfully connects.
*/
@Override
public void onConnected(Bundle connectionHint) {
//do your works here. it is connected now
}


 @Override
public void onConnectionSuspended(int cause) {
    // The connection to Google Play services was lost for some reason. We call connect() to
    // attempt to re-establish the connection.


    mGoogleApiClient.connect();
}


@Override
public void onConnectionFailed(ConnectionResult result) {
    // Refer to the javadoc for ConnectionResult to see what error codes might be returned in
    // onConnectionFailed.


}

GoogleApiClient在启动时未启用服务

1 个答案: