public App42RewardService()
 {
     rewardName = "Golden Reward" + DateTime.Now.Millisecond;
     rewardService = App42API.BuildRewardService();
     if (Constant.sessionId != null && Constant.sessionId != "")
     {
         rewardService.SetSessionId(Constant.sessionId);
     }
     if (Constant.adminKey != null && Constant.adminKey != "")
     {
         rewardService.SetAdminKey(Constant.adminKey);
     }
     this.InitializeComponent();
     this.navigationHelper = new NavigationHelper(this);
     this.navigationHelper.LoadState += navigationHelper_LoadState;
 }