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using System.ComponentModel;
using UIKit;
namespace Xamarin.Forms.Platform.iOS
{
public class TextCellRenderer : CellRenderer
{
static readonly Color DefaultDetailColor = new Color(.32, .4, .57);
static readonly Color DefaultTextColor = Color.Black;
public override UITableViewCell GetCell(Cell item, UITableViewCell reusableCell, UITableView tv)
{
var textCell = (TextCell)item;
var tvc = reusableCell as CellTableViewCell;
if (tvc == null)
tvc = new CellTableViewCell(UITableViewCellStyle.Subtitle, item.GetType().FullName);
else
tvc.Cell.PropertyChanged -= tvc.HandlePropertyChanged;
tvc.Cell = textCell;
textCell.PropertyChanged += tvc.HandlePropertyChanged;
tvc.PropertyChanged = HandlePropertyChanged;
tvc.TextLabel.Text = textCell.Text;
tvc.DetailTextLabel.Text = textCell.Detail;
tvc.TextLabel.TextColor = textCell.TextColor.ToUIColor(DefaultTextColor);
tvc.DetailTextLabel.TextColor = textCell.DetailColor.ToUIColor(DefaultDetailColor);
WireUpForceUpdateSizeRequested(item, tvc, tv);
UpdateIsEnabled(tvc, textCell);
UpdateBackground(tvc, item);
return tvc;
}
protected virtual void HandlePropertyChanged(object sender, PropertyChangedEventArgs args)
{
var tvc = (CellTableViewCell)sender;
var textCell = (TextCell)tvc.Cell;
if (args.PropertyName == TextCell.TextProperty.PropertyName)
{
tvc.TextLabel.Text = ((TextCell)tvc.Cell).Text;
tvc.TextLabel.SizeToFit();
}
else if (args.PropertyName == TextCell.DetailProperty.PropertyName)
{
tvc.DetailTextLabel.Text = ((TextCell)tvc.Cell).Detail;
tvc.DetailTextLabel.SizeToFit();
}
else if (args.PropertyName == TextCell.TextColorProperty.PropertyName)
tvc.TextLabel.TextColor = textCell.TextColor.ToUIColor(DefaultTextColor);
else if (args.PropertyName == TextCell.DetailColorProperty.PropertyName)
tvc.DetailTextLabel.TextColor = textCell.DetailColor.ToUIColor(DefaultTextColor);
else if (args.PropertyName == Cell.IsEnabledProperty.PropertyName)
UpdateIsEnabled(tvc, textCell);
}
static void UpdateIsEnabled(CellTableViewCell cell, TextCell entryCell)
{
cell.UserInteractionEnabled = entryCell.IsEnabled;
cell.TextLabel.Enabled = entryCell.IsEnabled;
cell.DetailTextLabel.Enabled = entryCell.IsEnabled;
}
}
}
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