android - google api客户端已连接返回false

Question

在我的代码中，即使正在连接，google api 客户端也会返回错误值

GoogleApiClient mGoogleApiClient;
btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Log.i(TAG,"btn is clicked");
            buildGoogleApiClient();
            Log.i(TAG,"build google api completed");
            mGoogleApiClient.connect();
            if(mGoogleApiClient.isConnected())
            Log.i(TAG,"client conneted");
            Log.i(TAG,String.valueOf(mGoogleApiClient.isConnected()));


        }
});

protected synchronized void buildGoogleApiClient() {
    Log.i(TAG, "Building GoogleApiClient");
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();
    createLocationRequest();
}

protected void createLocationRequest() {
    mLocationRequest = new LocationRequest();
    mLocationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS);
    mLocationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
}

提前致谢

Answer 1

mGoogleApiClient.connect(); 不是同步操作 - 这就是您在构建 GoogleApiClient 时设置 addConnectionCallbacks(this) 的原因.

您必须等待 onConnected() mGoogleApiClient.isConnected() 之前的回调将返回 true，您可以使用 GoogleApiClient。