public static View SetupMenuCell(int position, IListItem inVm, View convertView)
{
var vm = inVm as BaseMenuItemViewModel;
var inflater = LayoutInflater.FromContext(Application.Context);
MenuViewHolder viewHolder = null;
if (convertView == null)
{
convertView = inflater.Inflate(Resource.Layout.DrawerCell, null, false);
convertView.Tag = new MenuViewHolder
{
Image = convertView.FindViewById <ImageView>(Resource.Id.DrawerCellImage),
Title = convertView.FindViewById <TextView>(Resource.Id.DrawerCellText),
Subtitle = convertView.FindViewById <TextView>(Resource.Id.DrawerCellFooterText),
HolderVm = vm
};
viewHolder = convertView.Tag as MenuViewHolder;
}
else
{
var oldViewHolder = convertView.Tag as MenuViewHolder;
//null check and see if the viewHolder's Vm is the same type as our current vm
if (oldViewHolder != null && oldViewHolder.HolderVm.GetType() != vm.GetType())
{
//They are different, so lets unbind the previous vm's property changed
if (oldViewHolder.PropertyChanger != null)
{
oldViewHolder.HolderVm.PropertyChanged -= oldViewHolder.PropertyChanger;
}
//Lets go ahead and remove the on select method if it exists
if (oldViewHolder.OnSelect != null)
{
convertView.Click -= oldViewHolder.OnSelect;
}
viewHolder = oldViewHolder;
viewHolder.HolderVm = vm;
}
else
{
return(convertView);
}
}
viewHolder.Image.SetImageResource(DrawableHelpers.GetDrawableResourceIdViaReflection(vm.ImageName));
viewHolder.Title.Text = vm.Title;
viewHolder.Subtitle.Text = vm.Subtitle;
viewHolder.PropertyChanger = (object sender, System.ComponentModel.PropertyChangedEventArgs e) =>
{
var senderVm = sender as BaseMenuItemViewModel;
switch (e.PropertyName)
{
case "Title":
viewHolder.Title.Text = senderVm.Title;
break;
case "Subtitle":
viewHolder.Subtitle.Text = senderVm.Subtitle;
break;
case "ImageName":
viewHolder.Image.SetImageResource(
DrawableHelpers.GetDrawableResourceIdViaReflection(senderVm.ImageName));
break;
case "UserInteractionEnabled":
convertView.Click -= viewHolder.OnSelect;
if (vm.UserInteractionEnabled)
{
convertView.Click += viewHolder.OnSelect;
}
break;
}
};
viewHolder.OnSelect = (sender, eventargs) => vm.Selected();
vm.PropertyChanged += viewHolder.PropertyChanger;
if (vm.UserInteractionEnabled)
{
convertView.Click += viewHolder.OnSelect;
}
convertView.Tag = viewHolder;
return(convertView);
}
public static View ProcessSocialCard(int position, BaseContentCardViewModel cardViewModel, View convertView, LayoutInflater inflater)
{
BaseCardViewHolder viewHolder = null;
if (convertView == null || convertView.Id != Resource.Id.DefaultCellMainLayout || convertView.Tag == null)
{
if (convertView != null)
{
convertView.Tag = null;
}
convertView = null;
convertView = inflater.Inflate(Resource.Layout.DefaultCell, null, false);
viewHolder = new BaseCardViewHolder()
{
MainImage = convertView.FindViewById <ImageView>(Resource.Id.DefaultCellMainImage),
ProfileImage = convertView.FindViewById <CircularImageView>(Resource.Id.DefaultCellProfileImage),
UserName = convertView.FindViewById <TextView>(Resource.Id.DefaultCellUserName),
DateText = convertView.FindViewById <TextView>(Resource.Id.DefaultCellDateText),
BodyText = convertView.FindViewById <TextView>(Resource.Id.DefaultCellMainText),
SocialImage = convertView.FindViewById <CircularImageView>(Resource.Id.DefaultCellSocialImage),
LikeButton = convertView.FindViewById <Button>(Resource.Id.DefaultCellLikeButton),
CommentButton = convertView.FindViewById <Button>(Resource.Id.DefaultCellCommentButton),
ShareButton = convertView.FindViewById <Button>(Resource.Id.DefaultCellShareButton),
CommentLineContainer = convertView.FindViewById <RelativeLayout>(Resource.Id.DefaultCellCommentLineContainer),
LinkedVM = cardViewModel
};
convertView.Tag = viewHolder;
}
else
{
viewHolder = convertView.Tag as BaseCardViewHolder;
if (viewHolder == null)
{
return(convertView);
}
// Fix this to optimize slightly
if (viewHolder.LinkedVM != cardViewModel)
{
if (viewHolder.CleanUpCell != null)
{
viewHolder.CleanUpCell();
}
}
else
{
return(convertView);
}
viewHolder.LinkedVM = cardViewModel;
viewHolder.PropertyChangedEventHandler = null;
viewHolder.LikeEventHandler = null;
viewHolder.CommentEventHandler = null;
viewHolder.ShareEventHandler = null;
viewHolder.CleanUpCell = null;
}
if (viewHolder.LikeEventHandler == null)
{
viewHolder.LikeEventHandler = (object sender, EventArgs e) =>
{
viewHolder.LikeButton.Selected = !viewHolder.LikeButton.Selected;
cardViewModel.LikeCommand.Execute(null);
};
viewHolder.LikeButton.Click += viewHolder.LikeEventHandler;
}
if (viewHolder.CommentEventHandler == null)
{
viewHolder.CommentEventHandler = (object sender, EventArgs e) => cardViewModel.CommentCommand.Execute(null);
viewHolder.CommentButton.Click += viewHolder.CommentEventHandler;
}
if (viewHolder.ShareEventHandler == null)
{
viewHolder.ShareEventHandler = (object sender, EventArgs e) => cardViewModel.ShareCommand.Execute(null);
viewHolder.ShareButton.Click += viewHolder.ShareEventHandler;
}
if (viewHolder.PropertyChangedEventHandler == null)
{
viewHolder.PropertyChangedEventHandler = (object sender, PropertyChangedEventArgs e) =>
{
switch (e.PropertyName)
{
case "IsLikedByUser":
case "LikeButtonText":
case "LikeButtonTextColor":
viewHolder.LikeButton.Text = cardViewModel.LikeButtonText;
viewHolder.LikeButton.SetTextColor(cardViewModel.LikeButtonTextColor.ToDroidColor());
break;
case "ShowLikeButton":
viewHolder.LikeButton.Visibility = cardViewModel.ShowLikeButton ? ViewStates.Visible : ViewStates.Invisible;
break;
case "IsCommentedByUser":
case "CommentButtonText":
case "CommentButtonTextColor":
viewHolder.CommentButton.Text = cardViewModel.CommentButtonText;
viewHolder.CommentButton.SetTextColor(cardViewModel.CommentButtonTextColor.ToDroidColor());
break;
case "ShowCommentButton":
viewHolder.CommentButton.Visibility = cardViewModel.ShowCommentButton ? ViewStates.Visible : ViewStates.Invisible;
break;
case "IsSharedByUser":
case "ShareButtonText":
case "ShareButtonTextColor":
viewHolder.ShareButton.Text = cardViewModel.ShareButtonText;
viewHolder.ShareButton.SetTextColor(cardViewModel.ShareButtonTextColor.ToDroidColor());
break;
case "ShowShareButton":
viewHolder.ShareButton.Visibility = cardViewModel.ShowShareButton ? ViewStates.Visible : ViewStates.Invisible;
break;
case "ShowDateTime":
case "DisplayDateTime":
viewHolder.DateText.Visibility = cardViewModel.ShowDateTime ? ViewStates.Visible : ViewStates.Gone;
viewHolder.DateText.Text = cardViewModel.DisplayDateTime;
break;
}
};
cardViewModel.PropertyChanged += viewHolder.PropertyChangedEventHandler;
}
if (viewHolder.CleanUpCell == null)
{
viewHolder.CleanUpCell = () =>
{
viewHolder.LinkedVM.PropertyChanged -= viewHolder.PropertyChangedEventHandler;
viewHolder.LikeButton.Click -= viewHolder.LikeEventHandler;
viewHolder.CommentButton.Click -= viewHolder.CommentEventHandler;
viewHolder.ShareButton.Click -= viewHolder.ShareEventHandler;
};
}
viewHolder.UserName.Text = cardViewModel.UserName;
viewHolder.BodyText.TextFormatted = Html.FromHtml(cardViewModel.Text);
viewHolder.SocialImage.Visibility = cardViewModel.ShowSocialMediaImage ? ViewStates.Visible : ViewStates.Invisible;
viewHolder.SocialImage.SetImageResource(DrawableHelpers.GetDrawableResourceIdViaReflection(cardViewModel.SocialMediaImage));
viewHolder.LikeButton.Text = cardViewModel.LikeButtonText;
viewHolder.LikeButton.SetTextColor(cardViewModel.LikeButtonTextColor.ToDroidColor());
viewHolder.LikeButton.Visibility = cardViewModel.ShowLikeButton ? ViewStates.Visible : ViewStates.Invisible;
viewHolder.CommentButton.Text = cardViewModel.CommentButtonText;
viewHolder.CommentButton.SetTextColor(cardViewModel.CommentButtonTextColor.ToDroidColor());
viewHolder.CommentButton.Visibility = cardViewModel.ShowCommentButton ? ViewStates.Visible : ViewStates.Invisible;
viewHolder.ShareButton.Text = cardViewModel.ShareButtonText;
viewHolder.ShareButton.SetTextColor(cardViewModel.ShareButtonTextColor.ToDroidColor());
viewHolder.ShareButton.Visibility = cardViewModel.ShowShareButton ? ViewStates.Visible : ViewStates.Invisible;
viewHolder.DateText.Visibility = cardViewModel.ShowDateTime ? ViewStates.Visible : ViewStates.Gone;
viewHolder.DateText.Text = cardViewModel.DisplayDateTime;
if (!string.IsNullOrWhiteSpace(cardViewModel.UserImageUrl))
{
UrlImageViewHelper.SetUrlDrawable(viewHolder.ProfileImage, cardViewModel.UserImageUrl, SharedDrawableHelpers.GetSharedDrawableResourceIdViaReflection(cardViewModel.UserImagePlaceholder));
}
else
{
viewHolder.ProfileImage.SetImageResource(SharedDrawableHelpers.GetSharedDrawableResourceIdViaReflection(cardViewModel.UserImagePlaceholder));
}
if (cardViewModel.ShowImage)
{
viewHolder.MainImage.Visibility = ViewStates.Visible;
UrlImageViewHelper.SetUrlDrawable(viewHolder.MainImage, cardViewModel.ImageUrl);
}
else
{
viewHolder.MainImage.Visibility = ViewStates.Gone;
}
viewHolder.CommentLineContainer.Visibility = cardViewModel.ShowTimeline ? ViewStates.Visible : ViewStates.Gone;
convertView.Tag = viewHolder;
return(convertView);
}
