Android implements third-party login
Nowadays, third-party logins are very common, such as QQ, Weibo, and WeChat . Today, we will implement how to access QQ and log in to our project.
To use QQ to log in, we need to register an account on the Tencent Open Platform to obtain the developer qualification address: http ://open.qq.com/After the registration is completed, click on our management center in the upper right corner to
enter the management center, click on the following to create an application
and then select the Android platform to get the APPID and APPKEY After the creation is completed, we need to go to http://wiki. open.qq.com/wiki/mobile/SDK%E4%B8%8B%E8%BD%BDDownload the SDKJar package. Next, you can implement QQ login. Create a new project named QQLoginDemo and then unzip the SDK we just downloaded. The jar package in the jar folder is copied to our project libs The
project structure is as follows
Open our Android manifest and add permissions and register Activity as follows
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.shiran.qqlogindemo">
<!-- 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: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>
The layout file activity_main is a Button button
<?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"
tools:context="com.shiran.qqlogindemo.MainActivity">
<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>
The following is the code in our MainActivity
package com.shiran.qqlogindemo;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
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);
}
}
Let's take a look at the renderings
