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author | Stephane Delcroix <stephane@delcroix.org> | 2016-09-08 20:39:05 +0200 |
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committer | Jason Smith <jason.smith@xamarin.com> | 2016-09-08 11:39:05 -0700 |
commit | 85426c5d9495eb1d55b3128bf97e50c68a73b53f (patch) | |
tree | 2f81e5868ce61eb90d15c6c51a354603b8395627 /Xamarin.Forms.Platform.iOS/Extensions/UIViewExtensions.cs | |
parent | 11326e1c182b3ff5c3d82c6ef7d09c193bc19891 (diff) | |
download | xamarin-forms-85426c5d9495eb1d55b3128bf97e50c68a73b53f.tar.gz xamarin-forms-85426c5d9495eb1d55b3128bf97e50c68a73b53f.tar.bz2 xamarin-forms-85426c5d9495eb1d55b3128bf97e50c68a73b53f.zip |
Native Bindings (#278)
* [C, I, A, W] Support Native Bindings
* fix tabs
Diffstat (limited to 'Xamarin.Forms.Platform.iOS/Extensions/UIViewExtensions.cs')
-rw-r--r-- | Xamarin.Forms.Platform.iOS/Extensions/UIViewExtensions.cs | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.iOS/Extensions/UIViewExtensions.cs b/Xamarin.Forms.Platform.iOS/Extensions/UIViewExtensions.cs index 9847867c..73475b13 100644 --- a/Xamarin.Forms.Platform.iOS/Extensions/UIViewExtensions.cs +++ b/Xamarin.Forms.Platform.iOS/Extensions/UIViewExtensions.cs @@ -2,6 +2,8 @@ using System.Collections.Generic; using System.Drawing; using System.Linq; using System; +using static System.String; + #if __UNIFIED__ using UIKit; @@ -28,6 +30,47 @@ namespace Xamarin.Forms.Platform.iOS return new SizeRequest(request, minimum); } + public static void SetBinding(this UIView view, string propertyName, BindingBase bindingBase, string updateSourceEventName = null) + { + var binding = bindingBase as Binding; + //This will allow setting bindings from Xaml by reusing the MarkupExtension + updateSourceEventName = updateSourceEventName ?? binding?.UpdateSourceEventName; + + if (!IsNullOrEmpty(updateSourceEventName)) + { + NativeBindingHelpers.SetBinding(view, propertyName, bindingBase, updateSourceEventName); + return; + } + + NativeViewPropertyListener nativePropertyListener = null; + if (bindingBase.Mode == BindingMode.TwoWay) { + nativePropertyListener = new NativeViewPropertyListener(propertyName); + view.AddObserver(nativePropertyListener, propertyName, 0, IntPtr.Zero); + } + + NativeBindingHelpers.SetBinding(view, propertyName, bindingBase, nativePropertyListener); + } + + public static void SetBinding(this UIView self, BindableProperty targetProperty, BindingBase binding) + { + NativeBindingHelpers.SetBinding(self, targetProperty, binding); + } + + public static void SetValue(this UIView target, BindableProperty targetProperty, object value) + { + NativeBindingHelpers.SetValue(target, targetProperty, value); + } + + public static void SetBindingContext(this UIView target, object bindingContext, Func<UIView, IEnumerable<UIView>> getChildren = null) + { + NativeBindingHelpers.SetBindingContext(target, bindingContext, getChildren); + } + + internal static void TransferbindablePropertiesToWrapper(this UIView target, View wrapper) + { + NativeBindingHelpers.TransferBindablePropertiesToWrapper(target, wrapper); + } + internal static T FindDescendantView<T>(this UIView view) where T : UIView { var queue = new Queue<UIView>(); |