一：cocos creator端js调用java代码实现微信登录功能：JS部分
废话不多说直接上代码：
wechatLogin : function(){
jsb.reflection.callStaticMethod("org/cocos2dx/javascript/AppActivity", "wxLogin", "()V");//调用java代码进行微信登录
this.getAccessTokenByCode(); //根据java返回的code获得accessToken
},
//获取微信登录所必须的code
getWechatCode : function(){
var self = this;
var isGetCode;
var code;
//发送获得code的请求
return new Promise(function(resolve,reject){
console.log("进入Promise");
self.schedule(function(){ //java端微信请求是有延迟的在这里我们等待获取code的状态为true的时候在获取code
isGetCode = jsb.reflection.callStaticMethod("org/cocos2dx/javascript/AppActivity", "getCodeSuccess", "()Z");
console.log("isGetCode is " ,isGetCode);
if(isGetCode){
console.log("------------>",isGetCode);
//取消所有计时器
self.unscheduleAllCallbacks();
//如果获得code证明是成功获得微信的响应
code = jsb.reflection.callStaticMethod("org/cocos2dx/javascript/AppActivity", "getCode", "()Ljava/lang/String;");
console.log("==============>>code is " + code);
resolve(code);
}
}.bind(self),0.5);
});
},
getAccessTokenByCode : function(){
var self = this;
this.getWechatCode().then(function(code){ //获取微信code的承诺返回了正常的结果
console.log("已经获得code");
console.log("in AccessTokenByCode " + code);
self.getAccessToken(code);
});
},
getAccessToken : function(code){ //获取accessToken
var url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=自己的appId&secret=自己的appId秘钥&code=" + code + "&grant_type=authorization_code";
var self = this;
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
if (xhr.readyState == 4 && (xhr.status >= 200 && xhr.status < 400)) {
var response = xhr.responseText;
console.log("response===>>>",response);
var msg = JSON.parse(response);
var access_token = msg.access_token;
var refresh_token = msg.refresh_token;
var openid = msg.openid;
//如果超时进行重新刷新accessToken
if(msg.expires_in >= 7200){
//刷新accesstoken
self.freshAccessToken(refresh_token).then(function(data){
console.log("刷新accessToken 是",data);
access_token = data;
self.getUserInfo(access_token,openid);
cc.director.loadScene("helloworld");
});
console.log("这个accessToken是刷新出来的token",access_token);
}else{
self.getUserInfo(access_token,openid);
cc.director.loadScene("helloworld");
}
}
};
xhr.open("GET",url,true);
xhr.send();
},
getUserInfo : function(access_token,openid){ //获取用户信息
console.log("accessToken is " + access_token);
console.log("openid is " + openid);
var url = "https://api.weixin.qq.com/sns/userinfo?access_token="+access_token + "&openid="+openid;
var self = this;
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function(){
if (xhr.readyState == 4 && (xhr.status >= 200 && xhr.status < 400)) {
var response = xhr.responseText;
console.log("response===>>>",response);
var msg = JSON.parse(response);
console.log("msg is " , msg);
console.log("nickName is " + msg.nickname);
console.log("city is " + msg.city);
console.log("country " + msg.country);
console.log("sex is " + msg.sex);
}
};
xhr.open("GET",url,true);
xhr.send();
},
freshAccessToken : function(refresh_token){
var url = "https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=自己的appId&grant_type=refresh_token&refresh_token="+refresh_token;
var self = this;
var xhr = new XMLHttpRequest();
var ac;
return new Promise(function(resolve,reject){
xhr.onreadystatechange = function(){
if (xhr.readyState == 4 && (xhr.status >= 200 && xhr.status < 400)) {
var response = xhr.responseText;
console.log("response===>>>",response);
var msg = JSON.parse(response);
ac = msg.access_token;
console.log("ac is " + ac);
resolve(ac);
}
};
xhr.open("GET",url,true);
xhr.send();
});
},二：java代码部分：集成微信第三方jar包
1：打开android-studio工程，在project项目目录下找到app下的build-gradle在添加如下的依赖
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile project(':libcocos2dx')
compile 'com.sina.weibo.sdk:core:2.0.3:openDefaultRelease@aar'
compile 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:+' //微信登录所需要的jar包
implementation files('libs/android-support-v4.jar')
implementation files('libs/open_sdk_r5990_lite.jar')
}然后重新编译:
2：在AndroidManifest.xml添加如下的activity
<activity android:name="org.cocos2d.helloworld.wxapi.WXEntryActivity" android:label="@string/app_name" android:exported="true">
3:添加package WXEntryActivity的包名必须跟你应用的包名一致如我应用的包名是org.cocos2d.helloworld那么该类的包名就是org.cocos2d.helloworld.wxapi这个一定不能错
4：新建WXEntryActivity类：
public class WXEntryActivity extends Activity implements IWXAPIEventHandler{ private static final String app_id = "自己的appId"; //微信appId private IWXAPI api; //微信发送的请求将回调该方法 private void regToWx(){ api = WXAPIFactory.createWXAPI(this,app_id,true); api.registerApp(app_id); System.out.println("###############"); System.out.println("In wxEntryActivity api is " + api); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); System.out.println("enter the wxEntryActivity"); regToWx(); //这句话很关键 try { api.handleIntent(getIntent(), this); } catch (Exception e) { e.printStackTrace(); } } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); System.out.println("intent is " + intent); setIntent(intent); api.handleIntent(intent, this); } @Override public void onReq(BaseReq baseReq) { } //向微信发送的请求的响应信息回调该方法 @Override public void onResp(BaseResp baseResp) { System.out.println("Enter the onResp"); System.out.println("api is " + api); if(baseResp.errCode == BaseResp.ErrCode.ERR_OK){ String code = ((SendAuth.Resp) baseResp).code; System.out.println("==========code is ==========="+code); AppActivity.code = code; AppActivity.isGetCode = true; } } }
5：接下来写AppActivity:
public class AppActivity extends Cocos2dxActivity {
//微信appId
private static String appId = "自己的appId";
public static AppActivity app;
public static IWXAPI api;
//微信登录所必须的code
public static String code;
//是否获得code
public static boolean isGetCode = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Workaround in https://stackoverflow.com/questions/16283079/re-launch-of-activity-on-home-button-but-only-the-first-time/16447508
if (!isTaskRoot()) {
// Android launched another instance of the root activity into an existing task
// so just quietly finish and go away, dropping the user back into the activity
// at the top of the stack (ie: the last state of this task)
// Don't need to finish it again since it's finished in super.onCreate .
return;
}
// DO OTHER INITIALIZATION BELOW
SDKWrapper.getInstance().init(this);
//初始化api
api = WXAPIFactory.createWXAPI(this,appId);
//将应用的appid注册到微信
api.registerApp(appId);
}
6:微信登录方法：
//获取微信登录第一步的code
public static void requestCode(){
final SendAuth.Req req = new SendAuth.Req();
req.scope = "snsapi_userinfo";
req.state = "wechat_sdk_demo_test";
System.out.println("req is " + req);
//利用微信api发送请求
api.sendReq(req);
System.out.println("发送请求完毕");
System.out.println("In AppActivity api is " + api);
}
public static boolean getCodeSuccess(){ //js端一直检测该值直到该值为true
System.out.println("isGetCode is " + isGetCode);
return isGetCode;
}
public static String getCode(){
System.out.println("code is " + code);
return code;
}
//微信登录接口
public static void wxLogin(){
System.out.println("Enter the wxLogin");
requestCode(); //向微信服务器请求code
}