diff options
Diffstat (limited to 'Xamarin.Forms.ControlGallery.Android/CustomRenderers.cs')
| -rw-r--r-- | Xamarin.Forms.ControlGallery.Android/CustomRenderers.cs | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/Xamarin.Forms.ControlGallery.Android/CustomRenderers.cs b/Xamarin.Forms.ControlGallery.Android/CustomRenderers.cs index b1bf1fe8..1faa7a98 100644 --- a/Xamarin.Forms.ControlGallery.Android/CustomRenderers.cs +++ b/Xamarin.Forms.ControlGallery.Android/CustomRenderers.cs @@ -4,6 +4,7 @@ using Android.App; using System.Collections.Generic; using Android.Views; using System.Collections; +using System.ComponentModel; using System.Linq; using Xamarin.Forms.Controls; using Xamarin.Forms.Platform.Android; @@ -29,9 +30,10 @@ using System.Reflection; #endif namespace Xamarin.Forms.ControlGallery.Android { - public class NativeDroidMasterDetail : Xamarin.Forms.Platform.Android.AppCompat.MasterDetailPageRenderer { + MasterDetailPage _page; + protected override void OnElementChanged(VisualElement oldElement, VisualElement newElement) { base.OnElementChanged(oldElement, newElement); @@ -41,16 +43,32 @@ namespace Xamarin.Forms.ControlGallery.Android return; } - MasterDetailPage page = newElement as MasterDetailPage; - page.PropertyChanged += (object sender, System.ComponentModel.PropertyChangedEventArgs e) => pChange(); - page.LayoutChanged += Page_LayoutChanged; + _page = newElement as MasterDetailPage; + _page.PropertyChanged += Page_PropertyChanged; + _page.LayoutChanged += Page_LayoutChanged; + } + + void Page_PropertyChanged(object sender, PropertyChangedEventArgs propertyChangedEventArgs) + { + pChange(); } - private void Page_LayoutChanged(object sender, EventArgs e) + void Page_LayoutChanged(object sender, EventArgs e) { pChange(); } + protected override void Dispose(bool disposing) + { + if (disposing && _page != null) + { + _page.LayoutChanged -= Page_LayoutChanged; + _page.PropertyChanged -= Page_PropertyChanged; + } + + base.Dispose(disposing); + } + public void pChange() { if (Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop) |