对于ConnectionResult类型,未定义getIntentSender()方法

Question

我尝试在我的应用中使用Google+登录信息.

在编写代码时,我遇到了这个问题:

对于ConnectionResult类型,未定义getIntentSender()方法

我添加了Internet,getaccounts和usecredentials的权限.我添加了Google+服务库.

代码在这里:

package com.niranjan.googleplus;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.plus.Plus;

public class MainActivity extends ActionBarActivity implements ConnectionCallbacks, OnConnectionFailedListener {

    private GoogleApiClient googleapi;
    private static final int RC_SIGN_IN = 0;
    private boolean mIntentInProgress;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        googleapi = new GoogleApiClient.Builder(this)
        .addConnectionCallbacks(this)
        .addOnConnectionFailedListener(this)
        .addApi(Plus.API, null)
        .addScope(Plus.SCOPE_PLUS_LOGIN)
        .build();

    }

    protected void onStart(){
        super.onStart();
        googleapi.connect();
    }

    protected void onStop(){
        super.onStop();
        if(googleapi.isConnected()){
            googleapi.disconnect();
        }
    }

    @Override
    public void onConnectionFailed(ConnectionResult result) {
        if (!mIntentInProgress && result.hasResolution()) {
            try {
                mIntentInProgress = true;
                startIntentSenderForResult(result.getIntentSender(),
                                           RC_SIGN_IN, null, 0, 0, 0);
            }
            catch (SendIntentException e) {
                // The intent was canceled before it was sent. Return to the default
                // state and attempt to connect to get an updated ConnectionResult.
                mIntentInProgress = false;
                googleapi.connect();
            }
        }
    }

    protected void onActivityResult(int requestCode, int responseCode, Intent intent) {
        if (requestCode == RC_SIGN_IN) {
            mIntentInProgress = false;

            if (!googleapi.isConnecting()) {
                googleapi.connect();
            }
        }
    }

    public void onConnectionSuspended(int cause) {
        googleapi.connect();
    }

    @Override
    public void onConnected(Bundle arg0) {

        setContentView(R.layout.activity_main);
    }

    @Override
    public void onDisconnected() {
        // TODO Auto-generated method stub
    }
}

我已更新代码,但在运行时我得到一个Nullpointer异常...

Answer 1

使用:

result.getResolution().getIntentSender()

我有这个问题并以这种方式解决了.