public void YesClicked()
    {
        Debug.Log("Yes Clicked...");
        AlertCanvas.enabled = false;

        ButtonSetup("reward", false);
        // isRewardLoaded = false;
        //
        // buttonLoadReward.interactable = true;
        // buttonShowReward.interactable = false;

        //Parma 1 : Secret Key (Get it from Vdopia Portal : Required if server-to-server callback enabled)
        //Parma 2 : User name
        //Param 3 : Reward Name or measure
        //Param 4 : Reward Amount or quantity
        ChocolateUnityBridge.showRewardAd(30, "coin", "Chocolate1", "XNydpzNLIj2pBRM8");
    }
 private void showRewardAd()           //called when btnShowReward Clicked
 {
     log("Show Reward Ad...");
     ChocolateUnityBridge.showRewardAd(30, "coins", "", "qwer1234");
 }