C# (CSharp) NativeView.FindViewById示例

示例#1

文件： WindowHandler.Android.cs 项目： hevey/maui

        void UpdateToolbar()
        {
            _ = MauiContext ?? throw new InvalidOperationException($"{nameof(MauiContext)} should have been set by base class.");

            var appbarLayout = NativeView.FindViewById <ViewGroup>(Microsoft.Maui.Resource.Id.navigationlayout_appbar);

            if (appbarLayout == null || VirtualView is not IToolbarElement te)
            {
                return;
            }

            var nativeToolBar = te.Toolbar?.ToNative(MauiContext, true);

            if (nativeToolBar == null || nativeToolBar.Parent == nativeToolBar)
            {
                return;
            }

            appbarLayout.AddView(nativeToolBar, 0);
        }