Android Studio实现第三方QQ登录操作代码

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.tangxiaoying.qq2">
 <!-- QQ登录授权所需权限 -->
 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 <application
  android:allowBackup="true"
  android:icon="@mipmap/ic_launcher"
  android:label="@string/app_name"
  android:roundIcon="@mipmap/ic_launcher_round"
  android:supportsRtl="true"
  android:theme="@style/AppTheme">
  <activity android:name=".MainActivity">
   <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
   </intent-filter>
  </activity>
  <!-- 注册SDKActivity -->
  <activity
   android:name="com.tencent.tauth.AuthActivity"
   android:launchMode="singleTask"
   android:noHistory="true" >
   <intent-filter>
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.DEFAULT" />
    <category android:name="android.intent.category.BROWSABLE" />
    <data android:scheme="tencent1105602574" /> <!-- 开放平台获取的APPID -->
   </intent-filter>
  </activity>
  <activity android:name="com.tencent.connect.common.AssistActivity"
   android:theme="@android:style/Theme.Translucent.NoTitleBar"
   android:screenOrientation="portrait"/>
 </application>
</manifest>

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/activity_main"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
  >
 <Button
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:text="点击QQ登录"
  android:onClick="buttonLogin"
  android:layout_centerInParent="true"
  android:textSize="16sp"
  android:textColor="#f4736e"/>
</RelativeLayout>

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import com.tencent.connect.UserInfo;
import com.tencent.connect.auth.QQToken;
import com.tencent.connect.common.Constants;
import com.tencent.tauth.IUiListener;
import com.tencent.tauth.Tencent;
import com.tencent.tauth.UiError;
import org.json.JSONException;
import org.json.JSONObject;
public class MainActivity extends AppCompatActivity {
 private static final String TAG = "MainActivity";
 private static final String APP_ID = "1105602574";//官方获取的APPID
 private Tencent mTencent;
 private BaseUiListener mIUiListener;
 private UserInfo mUserInfo;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  //传入参数APPID和全局Context上下文
  mTencent = Tencent.createInstance(APP_ID,MainActivity.this.getApplicationContext());
 }
 public void buttonLogin(View v){
  /**通过这句代码，SDK实现了QQ的登录，这个方法有三个参数，第一个参数是context上下文，第二个参数SCOPO 是一个String类型的字符串，表示一些权限
   官方文档中的说明：应用需要获得哪些API的权限，由“，”分隔。例如：SCOPE = “get_user_info,add_t”；所有权限用“all”
   第三个参数，是一个事件监听器，IUiListener接口的实例，这里用的是该接口的实现类 */
  mIUiListener = new BaseUiListener();
  //all表示获取所有权限
  mTencent.login(MainActivity.this,"all", mIUiListener);
 }
 /**
  * 自定义监听器实现IUiListener接口后，需要实现的3个方法
  * onComplete完成 onError错误 onCancel取消
  */
 private class BaseUiListener implements IUiListener {
  @Override
  public void onComplete(Object response) {
   Toast.makeText(MainActivity.this, "授权成功", Toast.LENGTH_SHORT).show();
   Log.e(TAG, "response:" + response);
   JSONObject obj = (JSONObject) response;
   try {
    String openID = obj.getString("openid");
    String accessToken = obj.getString("access_token");
    String expires = obj.getString("expires_in");
    mTencent.setOpenId(openID);
    mTencent.setAccessToken(accessToken,expires);
    QQToken qqToken = mTencent.getQQToken();
    mUserInfo = new UserInfo(getApplicationContext(),qqToken);
    mUserInfo.getUserInfo(new IUiListener() {
     @Override
     public void onComplete(Object response) {
      Log.e(TAG,"登录成功"+response.toString());
     }
     @Override
     public void onError(UiError uiError) {
      Log.e(TAG,"登录失败"+uiError.toString());
     }
     @Override
     public void onCancel() {
      Log.e(TAG,"登录取消");
     }
    });
   } catch (JSONException e) {
    e.printStackTrace();
   }
  }
  @Override
  public void onError(UiError uiError) {
   Toast.makeText(MainActivity.this, "授权失败", Toast.LENGTH_SHORT).show();
  }
  @Override
  public void onCancel() {
   Toast.makeText(MainActivity.this, "授权取消", Toast.LENGTH_SHORT).show();
  }
 }
 /**
  * 在调用Login的Activity或者Fragment中重写onActivityResult方法
  * @param requestCode
  * @param resultCode
  * @param data
  */
 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  if(requestCode == Constants.REQUEST_LOGIN){
   Tencent.onActivityResultData(requestCode,resultCode,data,mIUiListener);
  }
  super.onActivityResult(requestCode, resultCode, data);
 }
}