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>