I'm trying to create a custom entry control with EntryType property which I then use inside custom renderers to set platform specific values. But the EntryType is never set when used from Xaml. Here's my code:
public class ExtendedEntry : Xamarin.Forms.Entry
{
public static readonly BindableProperty EntryTypeProperty = BindableProperty.Create(
propertyName: "EntryType",
returnType: typeof(int),
declaringType: typeof(EntryTextType),
defaultValue: 1
);
public EntryTextType EntryType
{
get
{
return (EntryTextType)GetValue(EntryTypeProperty);
}
set
{
SetValue(EntryTypeProperty, value);
}
}
protected override void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
base.OnPropertyChanged(propertyName);
if (propertyName == EntryTypeProperty.PropertyName)
{
}
}
}
public enum EntryTextType
{
Any,
Numeric,
Url,
Email
}
public class ExtendedEntryRenderer : EntryRenderer
{
public ExtendedEntryRenderer(Android.Content.Context context) : base(context)
{
}
protected override void OnElementChanged(ElementChangedEventArgs<Entry> e)
{
base.OnElementChanged(e);
if (Control != null)
{
var element = (ExtendedEntry)Element;
Control.Hint = element.Placeholder;
switch(element.EntryType)
{
case EntryTextType.Numeric:
Control.SetRawInputType(Android.Text.InputTypes.ClassNumber);
break;
default:
break;
}
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
var p = e.PropertyName;
base.OnElementPropertyChanged(sender, e);
}
}
And then in XAML, I use the control as this:
<controls:ExtendedEntry Placeholder="Password" IsPassword="True" Text="{Binding Secret}" EntryType="Any"/>
The problem is, EntryType never gets set to EntryTextType.Any, and always uses the default value of EntryTextType.Numeric. What am I missing here? Thanks.