public async void Init() { await Task.Delay(100); this.mInAppPurchaseService.View = this; Mvx.Resolve <IMvxMessenger>().Publish(new ProgressMessage(this, true)); //get list product ids from server var rs = await mApiService.GetProductIds(Mvx.Resolve <IPlatformService>().OS == OS.Touch? "apple" : "android"); if (rs != null && rs.Response != null && rs.Response.Products != null && rs.Response.Products.Count > 0) { List <string> productIds = new List <string>(); foreach (var item in rs.Response.Products) { productIds.Add(item.ProductId); } var productsInfo = await mInAppPurchaseService.RequestProductsInformation(productIds); } else { Mvx.Resolve <IMvxMessenger>().Publish(new ToastMessage(this, rs.Response != null ? rs.Response.ErrorCode : "Error")); } Mvx.Resolve <IMvxMessenger>().Publish(new ProgressMessage(this, false)); }