unity3d+androidstudio：接微信官方分享sdk

￡神魔★判官ぃ 2022-04-22 04:02 185阅读 0赞

## AndroidStudio： ##

## 导入unity与微信的两个jar包 ##

![在这里插入图片描述][20181102091056265.png]

## MyWxShare类 ##

package com.luoyikun.mywxshare;
    
    import android.app.Activity;
    import android.app.Fragment;
    import android.content.Context;
    import android.graphics.Bitmap;
    import android.graphics.BitmapFactory;
    import android.os.Bundle;
    
    import com.tencent.mm.opensdk.modelmsg.SendMessageToWX;
    import com.tencent.mm.opensdk.modelmsg.WXMediaMessage;
    import com.tencent.mm.opensdk.modelmsg.WXTextObject;
    import com.tencent.mm.opensdk.modelmsg.WXWebpageObject;
    import com.tencent.mm.opensdk.openapi.IWXAPI;
    import com.tencent.mm.opensdk.openapi.WXAPIFactory;
    import com.unity3d.player.UnityPlayer;
    
    public class MyWxShare extends Fragment {
    
        String m_gameObjectName;
        String m_funcName;
    
        private Context unityContext;
        private Activity unityActivity;
    
        private static final String TAG = "MyWxShare";
    
    
        public static final String APP_ID ="你的appid";
        public IWXAPI api;
    
        public void regToWx()
        {
            api = WXAPIFactory.createWXAPI(unityContext,APP_ID,true);
            api.registerApp(APP_ID);
    
        }
        public void UnityFunc(String gameObjectName, String funcName)
        {
            m_gameObjectName = gameObjectName;
            m_funcName = funcName;
        }
    
        private static MyWxShare Instance = null;
    
        public static MyWxShare GetInstanceByAndroid(Activity activity,Context context)
        {
            if (Instance == null)
            {
                Instance = new MyWxShare();
                Instance.unityActivity = activity;
                Instance.unityContext = context;
    
                activity.getFragmentManager().beginTransaction().add(Instance, TAG).commit();
            }
            return Instance;
        }
    
        public static MyWxShare GetInstance()
        {
            if(Instance == null)
            {
                Instance = new MyWxShare();
                Instance.unityActivity = UnityPlayer.currentActivity;
                Instance.unityContext = Instance.unityActivity.getBaseContext();
                UnityPlayer.currentActivity.getFragmentManager().beginTransaction().add(Instance, TAG).commit();
            }
            return Instance;
        }
    
        @Override
        public void onCreate(Bundle savedInstanceState)
        {
            super.onCreate(savedInstanceState);
            setRetainInstance(true);  // 这一句很重要，保存对该Fragment的引用，防止在旋转屏幕等操作时时丢失引用（Fragment隶属于Activity）
            regToWx();
        }
    
        // 调用 Unity
        // gameObjectName 为接受消息的Unity 中 GameObject 的名字
        // functionName   为接受消息的GameObject 挂载 C# 脚本中的函数名
        // _content       为发送给Unity 的内容
        public void CallUnity( String _content)
        {
            UnityPlayer.UnitySendMessage(m_gameObjectName, m_funcName, _content);
        }
    
        private String buildTransaction(final String type) {
            return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis();
        }
    
        public void shareText(String text,int wxShareType)
        {
            WXTextObject textObj = new WXTextObject();
            textObj.text = text;
             WXMediaMessage msg = new WXMediaMessage();
             msg.mediaObject =textObj;
             msg.description = text;
    
             SendMessageToWX.Req req = new SendMessageToWX.Req();
             req.transaction = buildTransaction("text");
             req.message = msg;
             req.scene = wxShareType;
             api.sendReq(req);
        }
    
        public void shareWebpage(String shareUrl, String title,  String desc,String image,int shareType) {
    
            WXWebpageObject webPage = new WXWebpageObject();
            webPage.webpageUrl = shareUrl;
            WXMediaMessage msg = new WXMediaMessage(webPage);
            msg.title = title;
            msg.description = desc;
            //图片加载是使用的ImageLoader.loadImageSync() 同步方法
            //并且还要创建图片的缩略图，因为微信限制了图片的大小
           /* Bitmap thumbBmp = Bitmap.createScaledBitmap(ImageLoaderUtil.getBitmap(image), 200, 200, true);
            msg.setThumbImage(thumbBmp);
            thumbBmp.recycle();*/
            SendMessageToWX.Req req = new SendMessageToWX.Req();
            req.transaction = buildTransaction("webpage");
            req.message = msg;
            //好友
            req.scene =  shareType;
            // 调用api接口发送数据到微信
            api.sendReq(req);
        }
    }

## WXEntryActivity类：微信返回通知的活动 ##

package 你的app包名.wxapi;
    
    import android.app.Activity;
    import android.content.Intent;
    import android.os.Bundle;
    import android.widget.Toast;
    
    import com.luoyikun.mywxshare.MyWxShare;
    import com.tencent.mm.opensdk.modelbase.BaseReq;
    import com.tencent.mm.opensdk.modelbase.BaseResp;
    import com.tencent.mm.opensdk.openapi.IWXAPI;
    import com.tencent.mm.opensdk.openapi.IWXAPIEventHandler;
    import com.tencent.mm.opensdk.openapi.WXAPIFactory;
    import com.unity3d.player.UnityPlayer;
    
    public class WXEntryActivity extends Activity implements IWXAPIEventHandler {
        private IWXAPI api;
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            api = WXAPIFactory.createWXAPI(this, MyWxShare.APP_ID);
            //把接受到的Intent给wxapi这个对象，它会解析回调结果，通过我们实现的IWXAPIEventHandler接口回调给我们
            api.handleIntent(getIntent(), this);
        }
    
        protected void onNewIntent(Intent intent) {
            super.onNewIntent(intent);
            setIntent(intent);
            api.handleIntent(intent, this);
        }
    
        @Override
        public void onReq(BaseReq req) {
        }
    
        //这里是核心:也就是微信支付结果会通知这个回调函数 在回调里我们通过UnityPlayer.UnitySendMessage通知Unity客户端支付结果
        @Override
        public void onResp(BaseResp resp) {
            //resp就是回调所带的参数 微信->安卓层->Unity  (resp)
            switch (resp.errCode) {
                case BaseResp.ErrCode.ERR_OK:
                    //分享成功
                    Toast.makeText(this, "分享成功", Toast.LENGTH_SHORT).show();
                    break;
                case BaseResp.ErrCode.ERR_USER_CANCEL:
                    //分享取消
                    Toast.makeText(this, "分享取消", Toast.LENGTH_SHORT).show();
                    break;
                case BaseResp.ErrCode.ERR_AUTH_DENIED:
                    //分享拒绝
                    Toast.makeText(this, "分享拒绝", Toast.LENGTH_SHORT).show();
                    break;
            }
    
            //Toast.makeText(this, retCode, Toast.LENGTH_SHORT).show();
            //通过这个方法 通知Unity层的某个物体上的某个方法  retCode就是调用Unity方法时候传递的参数
            //UnityPlayer.UnitySendMessage("Cube","GetWxRsp", retCode);
            finish();
    
        }
    
    }

## AndroidManifest文件修改 ##

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="com.luoyikun.mywxshare" >
        <uses-permission android:name="android.permission.INTERNET"/>
    
        <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    
        <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    
        <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    
        <application
            android:allowBackup="true">
    
            //回调创建的Activity 如果还有其它 就在下面加入
            <activity android:name="你的包名.wxapi.WXEntryActivity"
                android:exported="true"
                android:launchMode="singleTop"/>
        </application>
    
    </manifest>

## Grade修改 ##

apply plugin: 'com.android.library'
    
    android {
        compileSdkVersion 28
    
    
    
        defaultConfig {
            minSdkVersion 21
            targetSdkVersion 28
            versionCode 1
            versionName "1.0"
    
            testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    
        }
    
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            }
        }
    
    }
    
    dependencies {
        implementation files('libs/libammsdk.jar')
        //implementation 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:+'
        implementation files('libs/classes.jar')
    }

## Unity端： ##

## 包签名 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70]  
然后用打出的apk用官方签名apk得到签名在后台生成 AppId

## C\#调用 ##

public static void WxShareText(string text,EnWxShareType type)
        {
            AndroidJavaObject pluginObject = new AndroidJavaClass("com.luoyikun.mywxshare.MyWxShare").CallStatic<AndroidJavaObject>("GetInstance");
            pluginObject.Call("shareText", text,(int)type);
        }
    
        public static void WxShareWebpage(string url,string title,string descr,string img, EnWxShareType type = EnWxShareType.WXSceneSession)
        {
            AndroidJavaObject pluginObject = new AndroidJavaClass("com.luoyikun.mywxshare.MyWxShare").CallStatic<AndroidJavaObject>("GetInstance");
            pluginObject.Call("shareWebpage", url,title,descr,img, (int)type);
        }

## 特别注意 ##

1.得到的签名在微信后台一定要填对，不然返回-6  
2.如果测试微信调不起来，清除微信缓存，即可，因为上次的错误信息保存了

[20181102091056265.png]: /images/20220422/e9bd1666a337496cbcdc4ba6df015ef6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_16_color_FFFFFF_t_70]: /images/20220422/ec091e9040e74c6b9b41dba8cc08bfb9.png