public ChatView(ViewModelBase bindingContext)
{
BindingContext = bindingContext;
var chat = new SfChat
{
Messages = ((ChatViewModel)BindingContext).Messages,
CurrentUser = ((ChatViewModel)BindingContext).CurrentUser,
ShowOutgoingMessageTimestamp = true,
ShowTypingIndicator = false,
ShowIncomingMessageAuthorName = true,
ShowIncomingMessageTimestamp = true,
ShowTimeBreak = true,
IncomingMessageTimestampFormat = "HH:mm",
OutgoingMessageTimestampFormat = "HH:mm",
TypingIndicator = ((ChatViewModel)BindingContext).TypingIndicator,
};
chat.SendMessage += (sender, args) => ((ChatViewModel)BindingContext).MessageSent(sender, args);
var stackLayout = new StackLayout
{
Spacing = 10,
Children = { chat }
};
Content = stackLayout;
}
/// <summary>
/// Method will be called when the view is attached to the window
/// </summary>
/// <param name="bindable">SampleView type parameter as bindable</param>
protected override void OnAttachedTo(SampleView bindable)
{
this.sfChat = bindable.FindByName <SfChat>("sfChat");
this.viewModel = bindable.FindByName <FlightBookingViewModel>("viewModel");
this.viewModel.Messages.CollectionChanged += OnMessagesCollectionChanged;
base.OnAttachedTo(bindable);
}
protected override void OnDetachingFrom(MainPage bindable)
{
this.viewModel.Messages.CollectionChanged -= Messages_CollectionChanged;
this.sfChat = null;
this.viewModel = null;
base.OnDetachingFrom(bindable);
}
protected override void OnAttachedTo(MainPage bindable)
{
this.sfChat = bindable.FindByName <SfChat>("sfChat");
this.viewModel = bindable.FindByName <GettingStattedViewModel>("viewModel");
this.viewModel.Messages.CollectionChanged += Messages_CollectionChanged;
base.OnAttachedTo(bindable);
}
/// <summary>
/// Method will be called when the view is detached from window
/// </summary>
/// <param name="bindable">SampleView type of bindAble parameter</param>
protected override void OnDetachingFrom(ContentPage bindable)
{
this.viewModel.Messages.CollectionChanged -= OnMessagesCollectionChanged;
Connectivity.ConnectivityChanged -= this.viewModel.BotService.OnConnectivityChanged;
this.sfChat = null;
this.viewModel = null;
base.OnDetachingFrom(bindable);
}
public App()
{
InitializeComponent();
SfChat sfChat = new SfChat();
MainPage = new MainPage();
}
public ChatPage()
{
InitializeComponent();
sfChat = new SfChat();
viewModel = new GettingStartedViewModel();
this.sfChat.Messages = viewModel.Messages;
this.sfChat.CurrentUser = viewModel.CurrentUser;
this.sfChat.MessageTemplate = new MessageTemplateSelector(sfChat);
this.sfChat.ShowIncomingMessageAvatar = true;
this.sfChat.ShowOutgoingMessageAvatar = true;
this.Content = sfChat;
}
/// <summary>
/// Disposes the created instances.
/// </summary>
private void Dispose()
{
this.sfChat.Scrolled -= ChatScrolled;
if (this.sfChat != null)
{
this.sfChat.Dispose();
this.sfChat = null;
}
if (this.viewModel != null)
{
this.viewModel = null;
}
}
public ChatPage()
{
InitializeComponent();
sfChat = new SfChat();
viewModel = new GettingStartedViewModel();
this.sfChat.Messages = viewModel.Messages;
this.sfChat.CurrentUser = viewModel.CurrentUser;
this.sfChat.MessageTemplate = new ChatMessageTemplateSelector()
{
Chat = this.sfChat
};
this.Content = sfChat;
}
/// <summary>
/// Method will be called when the view is detached from window
/// </summary>
/// <param name="bindable">SampleView type of bindAble parameter</param>
protected override void OnDetachingFrom(SampleView bindable)
{
this.viewModel.Messages.CollectionChanged -= OnMessagesCollectionChanged;
Connectivity.ConnectivityChanged -= this.viewModel.BotService.OnConnectivityChanged;
this.viewModel.Bot = null;
if (this.sfChat != null)
{
this.sfChat.Dispose();
this.sfChat = null;
}
if (this.viewModel != null)
{
this.viewModel = null;
}
base.OnDetachingFrom(bindable);
}
private void InitViews(View sampleView = null)
{
if (sampleView != null)
{
this.loadMoreView = sampleView.FindByName <LoadMoreView>("LoadMoreView");
this.sfChat = loadMoreView.FindByName <SfChat>("sfChat");
this.viewModel = loadMoreView.FindByName <LoadMoreViewModel>("viewModel");
this.InitBadgeView(loadMoreView.FindByName <SfBadgeView>("ScrollDown"));
this.sfChat.Scrolled += ChatScrolled;
}
else
{
this.loadMoreView = new LoadMoreView();
this.sfChat = loadMoreView.FindByName <SfChat>("sfChat");
this.viewModel = loadMoreView.FindByName <LoadMoreViewModel>("viewModel");
this.InitBadgeView(loadMoreView.FindByName <SfBadgeView>("ScrollDown"));
this.sfChat.Scrolled += ChatScrolled;
}
}
public MessageTemplateSelector(SfChat chat) : base(chat)
{
}
public MessageTemplateSelector(SfChat sfChat) : base(sfChat)
{
this.Chat = sfChat;
this.ratingDataTemplate = new DataTemplate(typeof(RatingTemplate));
}
public MessageTemplateSelector(SfChat sfChat) : base(sfChat)
{
this.customMessageTemplate = new DataTemplate(typeof(CustomMessageTemplate));
}