连接到GoogleApiClient后GoogleApiClient.ConnectionCallbacks方法不会被调用 [英] GoogleApiClient.ConnectionCallbacks methods not being called after connecting to the GoogleApiClient

问题描述

我有一些code被连接到GoogleApiClient但onConnected不会被调用。

I've got some code which is connecting to the GoogleApiClient but onConnected is not being called.

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) {
    }

四大@覆盖方法都不是被称为，这是为什么？

None of the four @Override methods are being called, why is that?

推荐答案

您需要调用<一个href=\"https://developer.android.com/reference/com/google/android/gms/common/api/GoogleApiClient.Builder.html#addConnectionCallbacks(com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks)\">addConnectionCallbacks()和<一个href=\"https://developer.android.com/reference/com/google/android/gms/common/api/GoogleApiClient.Builder.html#addOnConnectionFailedListener(com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener)\">addOnConnectionFailedListener()在 GoogleApiClient.Builder ：

mApiClient = new GoogleApiClient.Builder( this )
    .addApi( Wearable.API )
    .addConnectionCallbacks(this)
    .addOnConnectionFailedListener(this)
    .build();

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