How to disable the Slide Menu functionality in iOS Xamarin.Forms - xamarin.forms

Question

I'm facing some issue with Slide menu in Masterdetail page. I want to disable the functionality in iOS.
In Android, I'm able to disable. But, in iOS it's not working.
"IsGestureEnabled="False" - This Property is working in Android. But not in iOS.
Please help me out this issue.

Answer 1

It seems an existing,and you can use CustomRenderer . Here is a workaround .However , this workaround seems obsolete because of the update of Xamarin.So we can improve it .
[assembly: ExportRenderer (typeof(MasterDetailPage), typeof(ExtendedMasterDetailPageRenderer), UIUserInterfaceIdiom.Phone)]
namespace Core.iOS.Renderers
{
public class ExtendedMasterDetailPageRenderer : PhoneMasterDetailRenderer
{
private MasterDetailPage page;
public ExtendedMasterDetailPageRenderer ()
{
}
// add following override method
public override void ViewDidLayoutSubviews()
{
base.ViewDidLayoutSubviews();
((MasterDetailPage)this.Element).PropertyChanged += HandlePropertyChanged;
}
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
((MasterDetailPage)this.Element).PropertyChanged += HandlePropertyChanged;
}
private void HandlePropertyChanged (object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == MasterDetailPage.IsGestureEnabledProperty.PropertyName)
{
var panGesture = typeof(PhoneMasterDetailRenderer).GetField ("panGesture", BindingFlags.NonPublic | BindingFlags.Instance).GetValue (this) as UIPanGestureRecognizer;
var hasPanGesture = false;
if (panGesture != null)
{
for (int i = 0; i < this.View.GestureRecognizers.Length; i++)
{
if (this.View.GestureRecognizers [i] is UIPanGestureRecognizer)
{
hasPanGesture = true;
break;
}
}
if (((MasterDetailPage)this.Element).IsGestureEnabled)
{
if (!hasPanGesture)
{
this.View.AddGestureRecognizer (panGesture);
}
return;
}
if (hasPanGesture)
{
this.View.RemoveGestureRecognizer (panGesture);
}
}
}
}
}
}
And in your MasterDetailPage
protected override void OnAppearing()
{
base.OnAppearing();
IsGestureEnabled = false;
}
Update
Create a CustomRenderer of Page
[assembly: ExportRenderer(typeof(Page), typeof(MyPageRenderer), UIUserInterfaceIdiom.Phone)]
namespace xxx.iOS
{
class MyPageRenderer : PageRenderer
{
public override void ViewDidLayoutSubviews()
{
base.ViewDidLayoutSubviews();
if (this.NavigationController != null)
{
var items = this.NavigationController.NavigationBar.Items;
if(items.Length > 0)
{
UIBarButtonItem leftItem = items[0].LeftBarButtonItem;
if(this.NavigationController.ViewControllers.Length == 1)
{
leftItem.Enabled = false;
}
}
}
}
}
}