unity3d+android：支付宝

桃扇骨 2022-05-03 00:58 286阅读 0赞

## android studio： ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x1b3lpa3Vu_size_27_color_FFFFFF_t_70]

## MyAliPay代码 ##

package com.luoyikun.myalipay;
    
    import android.app.Activity;
    import android.app.Fragment;
    import android.content.Context;
    import android.os.Bundle;
    import android.os.Handler;
    import android.os.Message;
    import android.text.TextUtils;
    import android.widget.Toast;
    
    import com.alipay.sdk.app.PayTask;
    import com.unity3d.player.UnityPlayer;
    
    import java.util.Map;
    
    public class MyAliPay extends Fragment {
    
        String m_gameObjectName;
        String m_funcName;
    
        private Context unityContext;
        private Activity unityActivity;
    
        private static final String TAG = "MyAliPay";
    
    
        private static final int SDK_PAY_FLAG = 1;
    
        private static final String RESULT_SUCCESS = "9000";
        private static final String TIP_PAY_SUCCESS = "支付成功";
        private static final String TIP_PAY_FAILED = "支付失败";
    
        public void UnityFunc(String gameObjectName, String funcName)
        {
            m_gameObjectName = gameObjectName;
            m_funcName = funcName;
        }
    
        private static MyAliPay Instance = null;
    
        public static MyAliPay GetInstanceByAndroid(Activity activity,Context context)
        {
            if (Instance == null)
            {
                Instance = new MyAliPay();
                Instance.unityActivity = activity;
                Instance.unityContext = context;
    
                activity.getFragmentManager().beginTransaction().add(Instance, TAG).commit();
            }
            return Instance;
        }
    
        public static MyAliPay GetInstance()
        {
            if(Instance == null)
            {
                Instance = new MyAliPay();
                //Instance.gameObjectName = gameObject;
                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）
        }
    
        // 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);
        }
    
        //支付回调:同步通知
        private Handler mHandler = new Handler() {
            public void handleMessage(Message msg) {
                @SuppressWarnings("unchecked")
                PayResult payResult = new PayResult((Map<String, String>) msg.obj);
                //根据支付结果返回的参数进行判断,resultStatus:结果状态
                //如果resultStatus为9000则是支付成功,否则则判定为支付失败
                String resultStatus = payResult.getResultStatus();
                if(TextUtils.equals(resultStatus,RESULT_SUCCESS)){
                    //支付成功
                    Toast.makeText(unityActivity, TIP_PAY_SUCCESS, Toast.LENGTH_SHORT).show();
                }
                else {
                    //支付失败
                    Toast.makeText(unityActivity, TIP_PAY_FAILED, Toast.LENGTH_SHORT).show();
                }
    
                //Toast.makeText(MainActivity.this, payResult.getResult(),
                // Toast.LENGTH_LONG).show();
    
            }
        };
    
        //支付方法,提供给Unity调用,info参数是服务器加签后传递给客户端的最终请求参数.再由客户端调用该方法的时候传递.
        //方法体是官方提供调用支付宝SDK支付的代码.
        public  void PayING(final String info){
    
            final String orderInfo = info;   // 订单信息
    
            //支付代码
            Runnable payRunnable = new Runnable() {
    
    
                @Override
                public void run() {
                    PayTask alipay = new PayTask(unityActivity);
                    Map<String, String> result = alipay.payV2(orderInfo,true);//ture表示unity到支付宝这个跳转的过程,是否会有一个过渡的动画
    
                    //支付结果回调:就是执行了以上的mHandler
                    Message msg = new Message();
                    msg.what = SDK_PAY_FLAG;
                    msg.obj = result;
                    mHandler.sendMessage(msg);
                }
            };
            // 必须异步调用
            Thread payThread = new Thread(payRunnable);
            payThread.start();
    
        }
    }

## PayResult代码： ##

package com.luoyikun.myalipay;
    
    import android.text.TextUtils;
    
    import java.util.Map;
    
    public class PayResult {
        private String resultStatus;
        private String result;
        private String memo;
    
        public PayResult(Map<String, String> rawResult) {
            if (rawResult == null) {
                return;
            }
    
            for (String key : rawResult.keySet()) {
                //keySet 获取到map的所有key集合 equals 判断key的名称是否等于xxx
                if (TextUtils.equals(key, "resultStatus")) {
                    resultStatus = rawResult.get(key);
                } else if (TextUtils.equals(key, "result")) {
                    result = rawResult.get(key);
                } else if (TextUtils.equals(key, "memo")) {
                    memo = rawResult.get(key);
                }
            }
        }
    
        @Override
        public String toString() {
            return "resultStatus={" + resultStatus + "};memo={" + memo
                    + "};result={" + result + "}";
        }
    
        /**
         * @return the resultStatus
         */
        public String getResultStatus() {
            return resultStatus;
        }
    
        /**
         * @return the memo
         */
        public String getMemo() {
            return memo;
        }
    
        /**
         * @return the result
         */
        public String getResult() {
            return result;
        }
    }

## 修改Grade ##

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 fileTree(dir: 'libs', include: ['*.jar'])
    
        implementation 'com.android.support:appcompat-v7:28.0.0'
        testImplementation 'junit:junit:4.12'
        androidTestImplementation 'com.android.support.test:runner:1.0.2'
        androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
        compile files('libs/alipaySdk-20170725.jar')
        implementation files('libs/classes.jar')
    }

## 修改AndroidManifest ##

增加权限，与两个h5活动

## 增加混淆proguard-rules ##

-keep class com.alipay.android.app.IAlixPay{*;}
    -keep class com.alipay.android.app.IAlixPay$Stub{*;}
    -keep class com.alipay.android.app.IRemoteServiceCallback{*;}
    -keep class com.alipay.android.app.IRemoteServiceCallback$Stub{*;}
    -keep class com.alipay.sdk.app.PayTask{ public *;}
    -keep class com.alipay.sdk.app.AuthTask{ public *;}
    -keep class com.alipay.sdk.app.H5PayCallback {
        <fields>;
        <methods>;
    }
    -keep class com.alipay.android.phone.mrpc.core.** { *; }
    -keep class com.alipay.apmobilesecuritysdk.** { *; }
    -keep class com.alipay.mobile.framework.service.annotation.** { *; }
    -keep class com.alipay.mobilesecuritysdk.face.** { *; }
    -keep class com.alipay.tscenter.biz.rpc.** { *; }
    -keep class org.json.alipay.** { *; }
    -keep class com.alipay.tscenter.** { *; }
    -keep class com.ta.utdid2.** { *;}
    -keep class com.ut.device.** { *;}

## unity3d端调用： ##

给服务器发商品id与数量，服务器向支付宝后台请求下单信息，服务器再发给客户端调用android端

public static void AliPay(string info)
        {
            AndroidJavaObject pluginObject = new AndroidJavaClass("com.luoyikun.myalipay.MyAliPay").CallStatic<AndroidJavaObject>("GetInstance");
            pluginObject.Call("PayING", info);
        }

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