public async Task <IList <ResponseRichMenu> > CreateRichMenuAsync(bool isRefresh)
{
var menuList = await MessagingClient.GetRichMenuListAsync();
if (isRefresh)
{
await DeleteRichMenusAsync(menuList);
}
var newMenuList = new List <ResponseRichMenu>();
newMenuList.Add(await RegisterRichMenuAsync(RichMenuA));
newMenuList.Add(await RegisterRichMenuAsync(RichMenuB));
newMenuList.Add(await RegisterRichMenuAsync(RichMenuC));
newMenuList.Add(await RegisterRichMenuAsync(RichMenuD));
return(newMenuList);
async Task <ResponseRichMenu> RegisterRichMenuAsync(RichMenu newItem)
{
var item = menuList.FirstOrDefault(menu => menu.Name == newItem.Name);
if (item == null)
{
var id = await MessagingClient.CreateRichMenuAsync(newItem);
var image = CreateRichMenuImage(newItem);
await UploadRichMenuImageAsync(image, id);
item = newItem.ToResponseRichMenu(id);
}
return(item);
}
}
protected override async Task OnPostbackAsync(PostbackEvent ev)
{
var menuList = await MessagingClient.GetRichMenuListAsync();
var nextMenu = menuList.FirstOrDefault(menu => menu.Name == ev.Postback.Data);
if (nextMenu == null)
{
await MessagingClient.ReplyMessageAsync(ev.ReplyToken, $"Error!! {ev.Postback.Data} not found.");
}
await MessagingClient.LinkRichMenuToUserAsync(ev.Source.UserId, nextMenu.RichMenuId);
await MessagingClient.ReplyMessageAsync(ev.ReplyToken, $"I changed a rich menu to {nextMenu.ChatBarText}");
}