android apk 微信登入_Android集成第三方微信登录

public classWXEntryActivity extends Activity implements IWXAPIEventHandler {privateIWXAPI api;private BaseResp resp = null;private String WX_APP_ID = "创建应用后得到的APP_ID";//获取第一步的code后，请求以下链接获取access_token

private String GetCodeRequest = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code";//获取用户个人信息

private String GetUserInfo = "https://api.weixin.qq.com/sns/userinfo?access_token=ACCESS_TOKEN&openid=OPENID";private String WX_APP_SECRET = "创建应用后得到的APP_SECRET";

@Overrideprotected voidonCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

api= WXAPIFactory.createWXAPI(this, WX_APP_ID, false);

api.handleIntent(getIntent(),this);

}//微信发送请求到第三方应用时，会回调到该方法

@Overridepublic voidonReq(BaseReq req) {

finish();

}//第三方应用发送到微信的请求处理后的响应结果，会回调到该方法

@Overridepublic voidonResp(BaseResp resp) {

String result= "";if (resp != null) {

resp=resp;

}switch(resp.errCode) {caseBaseResp.ErrCode.ERR_OK:

result= "发送成功";

Toast.makeText(this, result, Toast.LENGTH_LONG).show();

String code=((SendAuth.Resp) resp).code;/** 将你前面得到的AppID、AppSecret、code，拼接成URL 获取access_token等等的信息(微信)*/String get_access_token=getCodeRequest(code);

AsyncHttpClient client= newAsyncHttpClient();

client.post(get_access_token,newJsonHttpResponseHandler() {

@Overridepublic void onSuccess(intstatusCode, JSONObject response) {//TODO Auto-generated method stub

super.onSuccess(statusCode, response);try{if (!response.equals("")) {

String access_token=response

.getString("access_token");

String openid= response.getString("openid");

String get_user_info_url=getUserInfo(

access_token, openid);

getUserInfo(get_user_info_url);

}

}catch(Exception e) {//TODO Auto-generated catch block

e.printStackTrace();

}

}

});

finish();break;caseBaseResp.ErrCode.ERR_USER_CANCEL:

result= "发送取消";

Toast.makeText(this, result, Toast.LENGTH_LONG).show();

finish();break;caseBaseResp.ErrCode.ERR_AUTH_DENIED:

result= "发送被拒绝";

Toast.makeText(this, result, Toast.LENGTH_LONG).show();

finish();break;default:

result= "发送返回";

Toast.makeText(this, result, Toast.LENGTH_LONG).show();

finish();break;

}

}/**

* 通过拼接的用户信息url获取用户信息

*

* @param user_info_url*/

private voidgetUserInfo(String user_info_url) {

AsyncHttpClient client= newAsyncHttpClient();

client.get(user_info_url, newJsonHttpResponseHandler() {

@Overridepublic void onSuccess(intstatusCode, JSONObject response) {//TODO Auto-generated method stub

super.onSuccess(statusCode, response);try{

System.out.println("获取用户信息:" +response);if (!response.equals("")) {

String openid= response.getString("openid");

String nickname= response.getString("nickname");

String headimgurl= response.getString("headimgurl");

}

}catch(Exception e) {//TODO Auto-generated catch block

e.printStackTrace();

}

}

});

}

@Overrideprotected voidonNewIntent(Intent intent) {

super.onNewIntent(intent);

setIntent(intent);

api.handleIntent(intent,this);

finish();

}/**

* 获取access_token的URL(微信)

*

* @param code

* 授权时，微信回调给的

* @return URL*/

privateString getCodeRequest(String code) {

String result= null;

GetCodeRequest= GetCodeRequest.replace("APPID",

urlEnodeUTF8(WX_APP_ID));

GetCodeRequest= GetCodeRequest.replace("SECRET",

urlEnodeUTF8(WX_APP_SECRET));

GetCodeRequest= GetCodeRequest.replace("CODE", urlEnodeUTF8(code));

result=GetCodeRequest;returnresult;

}/**

* 获取用户个人信息的URL(微信)

*

* @param access_token

* 获取access_token时给的

* @param openid

* 获取access_token时给的

* @return URL*/

privateString getUserInfo(String access_token, String openid) {

String result= null;

GetUserInfo= GetUserInfo.replace("ACCESS_TOKEN",

urlEnodeUTF8(access_token));

GetUserInfo= GetUserInfo.replace("OPENID", urlEnodeUTF8(openid));

result=GetUserInfo;returnresult;

}privateString urlEnodeUTF8(String str) {

String result=str;try{

result= URLEncoder.encode(str, "UTF-8");

}catch(Exception e) {

e.printStackTrace();

}returnresult;

}

}

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