第一节 iOS恢复购买

一、代码事例：
       iOS的购买分为可恢复与不可恢复购买，可恢复购买比如武器、解锁的关卡、新角色等；不可恢复购买比如金币、钻石等消耗品。
       用户在购买过道具后，删除游戏后又重新下载了游戏，或者同一个apple id帐号登录了其他iOS设备，此时游戏需能恢复用户已购买的非消耗性道具。
       针对可恢复的购买，代码需做以下处理：
       需在UI主界面放置一个按钮，上面有"Restore Purchases"的字样，默认不可见，其余代码如下：
       if (this.hs_gameEngine.getPlatform() == "IOS") {
           if (this.hs_gamedataAddin.getSystemVariate(xxx).getValue() == 0) { //超全局系统变量
               var btn_Restore = sender.getControl("button_Restore");
               btn_Restore.setVisible(true);
               btn_Restore.addMouseUpDown("iOS_Btn_Restore_Mouse");
           }
       }

       function iOS_Btn_Restore_Mouse(sender, e) {
           var mouseType = e.getMouseType();
           if (mouseType == 0) { //mouseDown
               menuSelectPlayer.start();
           } else if (mouseType == 1) {
               this.hs_gameEngine.invokeThirdpartyInterface("iOS_restore", null);
               this.hs_uiAddin.createDialog("xxxrestoreXXX.u").showDialog();
           }
       }

       function iOS_RestoreCallback(result) {
           if (result) {
               xxxUIForm.getControl("button_Restore").setVisible(false);
               this.hs_gamedataAddin.getSystemVariate(xxx).setValue(1);
               this.hs_gameEngine.saveSuperSystemVariates();
               this.showTips("restore success!");
           } else {
               this.showTips("restore failed!");
           }
       }

       function hs_ChargeCallback(result, payType, arg) {
           if (result != 0) {
               if (arg == "iOS_restore") {
                   this.iOS_showTips("Restore Failed!");
                   return;
               }
           }
           switch (payType) {
               case 1:
                   //...
                   if (arg == "iOS_restore") {
                       //若正常购买涉及到窗体关闭之类，此处应该不处理，直接把道具给到玩家。
                   }
                   //...
               break;
           }
       }


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