61 lines
2.0 KiB
C#
61 lines
2.0 KiB
C#
using Android.Content;
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using Android.Views;
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using Bit.Droid.Renderers;
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using Google.Android.Material.BottomNavigation;
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using Xamarin.Forms;
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using Xamarin.Forms.Platform.Android;
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using Xamarin.Forms.Platform.Android.AppCompat;
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[assembly: ExportRenderer(typeof(TabbedPage), typeof(CustomTabbedRenderer))]
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namespace Bit.Droid.Renderers
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{
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public class CustomTabbedRenderer : TabbedPageRenderer, BottomNavigationView.IOnNavigationItemReselectedListener
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{
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private TabbedPage _page;
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public CustomTabbedRenderer(Context context) : base(context) { }
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protected override void OnElementChanged(ElementChangedEventArgs<TabbedPage> e)
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{
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base.OnElementChanged(e);
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if (e.NewElement != null)
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{
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_page = e.NewElement;
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GetBottomNavigationView()?.SetOnNavigationItemReselectedListener(this);
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}
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else
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{
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_page = e.OldElement;
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}
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}
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private BottomNavigationView GetBottomNavigationView()
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{
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for (var i = 0; i < ViewGroup.ChildCount; i++)
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{
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var childView = ViewGroup.GetChildAt(i);
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if (childView is ViewGroup viewGroup)
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{
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for (var j = 0; j < viewGroup.ChildCount; j++)
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{
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var childRelativeLayoutView = viewGroup.GetChildAt(j);
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if (childRelativeLayoutView is BottomNavigationView bottomNavigationView)
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{
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return bottomNavigationView;
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}
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}
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}
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}
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return null;
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}
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public void OnNavigationItemReselected(IMenuItem item)
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{
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if (_page?.CurrentPage?.Navigation != null && _page.CurrentPage.Navigation.NavigationStack.Count > 0)
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{
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Device.BeginInvokeOnMainThread(async () => await _page.CurrentPage.Navigation.PopToRootAsync());
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}
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}
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}
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}
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