使用eclipse实现cocos2d-x微信登录

作者: strayer_ | 来源:发表于2017-10-31 13:15 被阅读0次

使用eclipse导入proj.android。
创建包名.wxapi
导入微信sdk

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image.png

创建JinHelper.java

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AppActivity.java

public static final String TAG = "NiuBuTing_Weixin_SDK";
    public static final String APP_ID = "你的APP_iD";
    public static IWXAPI api;
    private static AppActivity instance = null;
 
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        instance = this;
        // 注册到微信
        regToWx();
    }
 
    //注册到微信
    private void regToWx() {
        //工厂模式创建微信api
        api = WXAPIFactory.createWXAPI(this, APP_ID, false);
 
        //注册程序
        api.registerApp(APP_ID);
    }
 
    //启动微信
    private static boolean LaunchWX() {
        boolean ret = false;
        if (!api.isWXAppInstalled())
        {//判断是否安装微信
            Toast.makeText(instance, "没有安装微信，请先安装微信!", Toast.LENGTH_LONG).show();
            return ret;
        }
        if (api.openWXApp())
        {//判断打开微信是否成功
            Log.d(TAG, "微信打开成功!");
            ret = true;
        }
        else
        {
            Log.d(TAG, "微信打开失败!");
            ret = false;
        }
 
        return ret;
    }
 
    //将图片解析成一个二进制数组
    private byte[] bmpToByteArrar(final Bitmap bitmap, final boolean isRecycle){
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
        if (isRecycle)
        {
            bitmap.recycle();
        }
 
        byte[] result = outputStream.toByteArray();
 
        try
        {
            outputStream.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
        return result;
    }
 
    //微信登录
    public static void WXLogin(){
        Log.d(TAG, "login-------------");
        WXEntryActivity.ReqState = 0;
        final SendAuth.Req req = new SendAuth.Req();
        req.scope = "snsapi_userinfo";  //这里不能改
        req.state = "QTNiuBuTing";  //这里改成你自己的数据
        api.sendReq(req);
    }
 
    //分享到聊天窗口
    public static void WXShareMsgToFriends(final String userNickName,
                                           final String roomNum,
                                           final String inningsNum,
                                           final String peopleNum,
                                           final int playType){
        //这里的参数是看你自己你需要的话就行，但是在cocos里面调用这个方法的你也传递数值过来
 
        String strPlayType = "轮庄牛牛";
 
        if (playType == 1)   //2为轮庄
        {
            strPlayType = "抢庄牛牛";
        }
 
        WXEntryActivity.ReqState = 1;
 
        //封装一个链接，点击跳转到指定网址
        WXWebpageObject webpag = new WXWebpageObject();
        webpag.webpageUrl = "https://www.xxxxxxxxxxxxx.com/";
 
        //封装游戏图标
        Bitmap bitmap = BitmapFactory.decodeResource(instance.getResources(), R.drawable.icon);
        Bitmap thumb = Bitmap.createScaledBitmap(bitmap, 108, 108, true);
        bitmap.recycle();
 
        //封装分享内容
        WXMediaMessage msg = new WXMediaMessage(webpag);
        msg.thumbData = instance.bmpToByteArrar(thumb, true);
        msg.title = "我是 " + userNickName;  //这个是标题
        msg.description = "[" + strPlayType + "]"  //这个是描述
                + " 房间号:" + roomNum + "。"
                + " 局数:" + inningsNum + "。"
                + " 人数:" + peopleNum + "人。"
                + "一起来玩一玩吧！";
 
        //封装请求
        SendMessageToWX.Req req = new SendMessageToWX.Req();
        req.transaction = buildTransaction("webpag");
        req.message = msg;
        req.scene = SendMessageToWX.Req.WXSceneSession;
 
        //发送请求
        api.sendReq(req);
    }
 
    //生成一个微信唯一请求标识符
    private static String buildTransaction(final String type) {
        return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis();
    }

WXEntryActivity.java

放到包名.wxapi文件夹下
WXEntryActivity.java 和 .wxapi 不要改名
包名对应的是微信记录的那个包名

public class WXEntryActivity extends Activity implements IWXAPIEventHandler {
    private final String TAG = "NiuBuTing_Weixin_SDK";
    public static int ReqState = -1;  //0为登录， 1为分享
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
        AppActivity.api.handleIntent(this.getIntent(), this);
        //如果没回调onResp，八成是这句没有写
    }
 
    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
 
        setIntent(intent);
        AppActivity.api.handleIntent(intent, this);
    }
 
    // 微信发送请求到第三方应用时，会回调到该方法
    @Override
    public void onReq(BaseReq req) {
        finish();
    }
 
    @Override
    public void onResp(BaseResp resp) {
        Log.d(TAG, "onResp:");
        switch (resp.errCode) {
            case BaseResp.ErrCode.ERR_OK:
                Log.d(TAG, "请求成功");
                if (ReqState == 0)  //这个是自己加用于判断是登录还是分享，你们可以去掉判断只要里面的代码就行了
                {
                    SendAuth.Resp sendResp = (SendAuth.Resp) resp;
                    JniHelper.onResp(sendResp.code); //这个登录了之后用于回调cocos端函数的映射代码
                    Log.d(TAG, sendResp.code);
                }
                break;
            case BaseResp.ErrCode.ERR_USER_CANCEL:
                //发送取消
                Toast.makeText(this, "请求取消", Toast.LENGTH_LONG).show();
                break;
            case BaseResp.ErrCode.ERR_AUTH_DENIED:
                //发送被拒绝
                Toast.makeText(this, "请求被拒绝", Toast.LENGTH_LONG).show();
                break;
            default:
                //发送返回
                Toast.makeText(this, "请求返回", Toast.LENGTH_LONG).show();
                break;
        }
        ReqState = -1;
        finish();
    }
}

AndroidManifest.xml

image.png

WXAPIManager.h

#ifndef __WXAPIMANAGER_H__
#define __WXAPIMANAGER_H__

#include "cocos2d.h"
#include "network/HttpClient.h"


USING_NS_CC;
using namespace network;


#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)  //判断是不是安卓环境
#include "platform/android/jni/JniHelper.h"
#endif

typedef enum {
    REQ_ERROR = 0,
    REQ_SUCCESS,
    CMD_ACCESS_TOKEN,
    CMD_USER_INFO,
    DEFAULT
}reqTag;

class WXAPIManager : Ref
{
public:
    static WXAPIManager *getInstance();

    //分享到好友
    void sendToFriend(const char *userNickName, const char *roomNum, const char *inningsNum, const char *peopleNum, const int playType);

    //微信登录
    void loginWX();

public:
    static WXAPIManager *_instance;

    void setCode(std::string szCode);

    
private:
    WXAPIManager();
    ~WXAPIManager();
    std::string code;
    reqTag lastTag; 
};
#endif // __WXAPIMANAGER_H__</void(std::string)>

WXAPIManager.cpp

#include "WXAPIManager.h"

WXAPIManager *WXAPIManager::_instance = nullptr;

WXAPIManager::WXAPIManager()
    :lastTag(reqTag::CMD_ACCESS_TOKEN)
{
}

WXAPIManager::~WXAPIManager()
{
}

WXAPIManager *WXAPIManager::getInstance()
{
    if (_instance == nullptr)
    {
        _instance = new(std::nothrow) WXAPIManager();
        _instance->autorelease();
        _instance->retain();
    }

    return _instance;
}

//分享给好友
void WXAPIManager::sendToFriend(const char *userNickName, const char *roomNum, const char *inningsNum, const char *peopleNum, const int playType)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) //判断是不是Android环境
    JniMethodInfo minfo;

    //调用java端的静态函数
    bool isHave = JniHelper::getStaticMethodInfo(minfo,
        "org/cocos2dx/cpp/AppActivity", //这个是固定的
        "WXShareMsgToFriends",   //这个是你要调用的java端的函数名
        "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;I)V");
    //后面跟的是java那边需要接收的参数

    if (!isHave) {
        log("jni:WXShareImgToFriends is null");
    }
    else {
        //这里需要把参数转换为java格式
        jstring jUserNickName = minfo.env->NewStringUTF(userNickName);
        jstring jRoomNum = minfo.env->NewStringUTF(roomNum);
        jstring jInnings = minfo.env->NewStringUTF(inningsNum);
        jstring jpeopleNum = minfo.env->NewStringUTF(peopleNum);
        jint jPlayType = playType;

        minfo.env->CallStaticVoidMethod(minfo.classID, minfo.methodID, jUserNickName, jRoomNum, jInnings, jpeopleNum, jPlayType);  //开始调用函数

                                                                                                                                   //删除参数
        minfo.env->DeleteLocalRef(jUserNickName);
        minfo.env->DeleteLocalRef(jRoomNum);
        minfo.env->DeleteLocalRef(jInnings);
        minfo.env->DeleteLocalRef(jpeopleNum);
    }
#endif
}

//微信登录
void WXAPIManager::loginWX()
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
    JniMethodInfo minfo;

    bool isHave = JniHelper::getStaticMethodInfo(minfo,
        "org/cocos2dx/cpp/AppActivity",
        "WXLogin",
        "()V");  //没有参数

    if (!isHave) {
        log("jni:WXLogin is null");
    }
    else
    {
        minfo.env->CallStaticVoidMethod(minfo.classID, minfo.methodID);
    }
#endif
}
void WXAPIManager :: setCode(std::string szCode) {
    code = szCode;
    //发送code值
    auto _eventDispatcher = Director::getInstance()->getEventDispatcher();
        _eventDispatcher->dispatchCustomEvent("code", &szCode);
}



#if(CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
//必须是C语言的函数，因为C++的函数会有不同的符号生成规则  
//1.Java_:是格式，必须加的  
//2.org_cocos2dx_cpp_tools_JniHelper:是包名+类名  
//3.onResp:是Andriod工程中声明的名字  
//4.中间需要_分开  
extern "C" {

    //给android调用的native代码，微信回调后会调用这个函数
    //这个代码是给安卓调用，那边传了一个code过来直接转换之后使用就行了
    /*
    微信的登录的流程：
    1、拉起微信登录界面，用户确认之后就回调java端的回调。
    2、Java端的回调执行之后根据代码在调用这个函数。
    3、接下来的步骤有cocos基础的基本都知道怎么执行了
    所以在cocos端首先执行的就是这里的代码。
    */
    JNIEXPORT void Java_org_cocos2dx_cpp_JniHelper_onResp(JNIEnv *env, jobject thiz, jstring code)
    {
    
        /*获取code值,进行类型转换*/
        const char *szCode = env->GetStringUTFChars(code, NULL);
        
        std::string sCode = szCode;
        
        /*调用setCode()方法*/
        WXAPIManager *_twm = WXAPIManager::getInstance();
    
        _twm->setCode(sCode);
    
    }
}
#endif</char>

微信登录

//微信登录 放到点击事件里
    auto manager = WXAPIManager::getInstance();
    manager->loginWX();

    /*接收code值*/
    _eventDispatcher->addCustomEventListener("code", [=](EventCustom* evn) {
        std::string* strValue = (std::string*)(evn->getUserData());
        Size size = Director::getInstance()->getWinSize();
        code = *strValue;
        /*显示所获得的code值*/
        TTFConfig nameTtf("font/ffa.ttf", 16);//字体自己随便找个
        nameTypeface = Label::createWithTTF(nameTtf, "423");
        nameTypeface->setTextColor(Color4B::BLUE);
        nameTypeface->setAnchorPoint(Vec2::ANCHOR_MIDDLE);
        nameTypeface->setPosition(size/2);
        nameTypeface->setString(code);
        addChild(nameTypeface);
        /*然后给服务器发送code值*/

Label* nameTypeface;放到方法外面，不要放到.h文件里会打包出错。放方法里面的话Label会不显示

打包

image.png

使用eclipse实现cocos2d-x微信登录

微信登录

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