Android第三方登录之腾讯QQ登录的实例代码

<TextView
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="登录成功"
  android:textSize="25sp"
  android:layout_marginTop="100dp"
  />

<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="tencent1106163416" /> <!-- 开放平台获取的APPID -->
  </intent-filter>
</activity>

public class MainActivity extends AppCompatActivity {
  private static final String TAG = "MainActivity";
  private static final String APP_ID = "1106163416";//官方获取的APPID
  private Tencent mTencent;
  private BaseUiListener mIUiListener;
  private UserInfo mUserInfo;
  private Button button;
  @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) {
            Intent inten = new Intent(MainActivity.this,NextActivity.class);
            startActivity(inten);
            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);
  }
}

<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>