garden_client/Assets/Script/ThirdParty/Alipay/AlipayManager.cs

using UnityEngine;

using System.Collections;
using System.Collections.Generic;

public class AliplayManager : UnitySingleton<AliplayManager> {

    private AndroidJavaObject androidUnityTool;

	public void Init()
	{
		androidUnityTool = new AndroidJavaObject("com.dashgame.unity.UnityTool");
		androidUnityTool.Call("setResponseGameObject", this.name);
	}

	public void Pay(){

		AndroidJavaClass jc = new AndroidJavaClass("com.unity3d.player.UnityPlayer");    
		AndroidJavaObject currentActivity = jc.GetStatic<AndroidJavaObject>("currentActivity");

		//Pay(string orderInfo, Activity activity)
		androidUnityTool.Call("pay", "a=3", currentActivity); // 传递的参数需与服务器协商

    }

    public void OnPayResult(string result)
	{
		//if result=9000 means pay success;
	}

}