public ChatPage(Conversation con) : this()
{
var vm = new Chat.ViewModels.ChatPageViewModel(con);
vm.View = this;
this.BindingContext = vm;
this.Title = con.Title;
ScrollListCommand = new Command(() =>
{
ChatList.ScrollToLast();
});
if (!string.IsNullOrEmpty(con.HTMLTable))
{
var webView = MessageBoard.FindByName <WebView>("webView");
webView.Source = new HtmlWebViewSource
{
Html = con.HTMLTable
};
}
// ChatList.Opacity = 0;
//var itemSource = ChatList.ItemsSource as ObservableCollection<GroupedMessage>;
//var lastMessage = itemSource.Last().Last();
ChatList.ScrollToLast();
//ChatList.ScrollToLast();
//ChatList.ScrollTo(lastMessage, ScrollToPosition.MakeVisible, false);
// ChatList.Opacity = 1;
}
public void ScrollTap(object sender, System.EventArgs e)
{
lock (new object())
{
if (BindingContext != null)
{
var vm = BindingContext as ChatPageViewModel;
Device.BeginInvokeOnMainThread(() =>
{
vm.ShowScrollTap = false;
vm.LastMessageVisible = true;
vm.PendingMessageCount = 0;
ChatList.ScrollToLast();
});
}
}
}
public void ScrollTap(object sender, System.EventArgs e)
{
lock (new object())
{
if (BindingContext != null)
{
ChatPageViewModel vm = BindingContext as ChatPageViewModel;
Device.BeginInvokeOnMainThread(() =>
{
while (vm.DelayedMessages.Count > 0)
{
//vm.Messages.Insert(0, vm.DelayedMessages.Dequeue());
vm.Messages.Add(vm.DelayedMessages.Dequeue());
}
vm.ShowScrollTap = false;
vm.LastMessageVisible = true;
vm.PendingMessageCount = 0;
ChatList?.ScrollToLast();
});
}
}
}