How can I change the accessible name of the "OK" hamburger button in an app built from the-CodePudding

I've built a Xamarin Android app based on the Xamarin AppShell template in VS. The hamburger button which invokes the flyout gets announced by the TalkBack screen reader as having a name of "OK". This doesn't seem a good match for the purpose of the button, perhaps a name of "Menu" would be more helpful. I've not found a way to change the AutomationProperties.Name of the hamburger button.

How can I change the hamburger button such that TalkBack announces it as the "Menu" button?

CodePudding user response：

I'm not familiar with Xamarin but with basic Android coding, you'd use android:contentDescription to specify the text you want the screen reader (Talkback) to announce.

contentDescription is also mentioned in https://docs.microsoft.com/en-us/xamarin/android/app-fundamentals/accessibility

CodePudding user response：

In the Android, there is a property named toolbar.NavigationContentDescription for the hamburger button in the app shell. You can set it by a custom shell renderer.

custom shell renderer :https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/shell/customrenderers

And set the property

 public class MyShellToolbarAppearanceTracker : ShellToolbarAppearanceTracker
{
    public MyShellToolbarAppearanceTracker(IShellContext context) : base(context)
    {
    }

    public override void SetAppearance(Toolbar toolbar, IShellToolbarTracker toolbarTracker, ShellAppearance appearance)
    {
        base.SetAppearance(toolbar, toolbarTracker, appearance);
        // I had debug the value of description and it's "ok".
       // string description = toolbar.NavigationContentDescription;
        toolbar.NavigationContentDescription = "menu";
    }
}