连接到GoogleApiClient后没有调用GoogleApiClient.ConnectionCallbacks方法
问题描述:
我有一些连接到GoogleApiClient的代码,但onConnected没有被调用。连接到GoogleApiClient后没有调用GoogleApiClient.ConnectionCallbacks方法
public class MainActivity extends Activity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
private GoogleApiClient mApiClient;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initGoogleApiClient();
}
private void initGoogleApiClient() {
mApiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.build();
mApiClient.connect(); // On completion onConnected() will be called
}
@Override
public void onConnected(Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
protected void onDestroy() {
super.onDestroy();
mApiClient.disconnect();
}
@Override
public void onConnectionFailed(com.google.android.gms.common.ConnectionResult connectionResult) {
}
没有四个@Override方法被调用,为什么?
答
你需要调用addConnectionCallbacks()和addOnConnectionFailedListener()您GoogleApiClient.Builder
:
mApiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();