在android中实现google play服务

我将继续学习教程，并且在

onConnectionFailed

类中未定义类型ConnectionResult的getIntentSender（）方法

完整代码

package com.alfalfa.thisthat;

import android.app.Activity;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.os.Bundle;
import android.view.Menu;

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 LoginActivity extends Activity implements
ConnectionCallbacks, OnConnectionFailedListener {

    /* Request code used to invoke sign in user interactions. */
    private static final int RC_SIGN_IN = 0;

    /* Client used to interact with Google APIs. */
    private GoogleApiClient mGoogleApiClient;

    /* A flag indicating that a PendingIntent is in progress and prevents
     * us from starting further intents.
     */
    private boolean mIntentInProgress;

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

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

    protected void onStop() {
        super.onStop();

        if (mGoogleApiClient.isConnected()) {
            mGoogleApiClient.disconnect();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @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;
              mGoogleApiClient.connect();
            }
          }
        }

    @Override
    public void onConnected(Bundle connectionHint) {
        // We've resolved any connection errors.  mGoogleApiClient can be used to
        // access Google APIs on behalf of the user.
    }

    @Override
    public void onConnectionSuspended(int cause) {
          mGoogleApiClient.connect();
    }

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

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

编辑： LogCat

---

从今天起，Google Play SDK版本15已被替换为

result.startResolutionForResult(this, // your activity
                                RC_SIGN_IN);

根据更新的。

希望对您有所帮助

result.getResolution().getIntentSender()

---

如果我将该行更改为上面的行，LoginActivity类不会显示任何错误，但是如果我运行程序的目的是从MainActivity到LoginActivity，则应用程序强制关闭。还有什么我做得不对的吗？谢谢。如果是强制关闭，请发布日志。该错误看起来好像您没有在清单中声明您的活动之一，并且与Google Play服务无关。谢谢，这消除了错误。我说“发生了一个内部错误”，屏幕在闪烁。不知道那是什么。但我想我会把它留给另一个问题。谢谢你的帮助。嗨，这很可能解决问题。。。但是，如果你能提供一些关于它如何工作以及为什么工作的解释，那就太好了：）别忘了——堆栈溢出上有很多新手，他们可以从你的专业知识中学到一两件事——对你来说显而易见的事对他们来说可能不是这样。

result.getResolution().getIntentSender()