[Android] Input controls should not change keyboard visibility - UITest

src/Controls/tests/TestCases.HostApp/Issues/Issue29558.xaml

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+<?xml version="1.0" encoding="UTF-8"?>
+<Shell xmlns:controls="clr-namespace:Maui.Controls.Sample.Issues"
+       xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+       xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+       x:Class="Maui.Controls.Sample.Issues.Issue29558">
+        <ShellContent
+                Title="Home"
+                Route="MainPage">
+                <ContentPage>
+                        <Shell.SearchHandler>
+                                <SearchHandler x:Name="searchHandler"
+                                               Placeholder="searchHandler"
+                                               Keyboard="Plain"/>
+                        </Shell.SearchHandler>
+                        <StackLayout>
+                                <Entry AutomationId="entry"
+                                       x:Name="entry"/>
+                                <Editor AutomationId="editor"
+                                        x:Name="editor"/>
+                                <SearchBar AutomationId="searchBar"
+                                           x:Name="searchBar"/>
+                                <Button Text="Unfocus"
+                                        Clicked="UnfocusButton_Clicked"
+                                        AutomationId="unfocusButton"/>
+                        </StackLayout>
+                </ContentPage>
+        </ShellContent>
+</Shell>

src/Controls/tests/TestCases.HostApp/Issues/Issue29558.xaml.cs

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+namespace Maui.Controls.Sample.Issues;
+
+[Issue(IssueTracker.Github, 29558, "Input controls should not change keyboard visibility", PlatformAffected.Android)]
+public partial class Issue29558 : Shell
+{
+	int _action = 0;
+
+	public Issue29558()
+	{
+		InitializeComponent();
+	}
+
+	private void UnfocusButton_Clicked(object sender, EventArgs e)
+	{
+		switch (_action)
+		{
+			case 0:
+				searchHandler.Unfocus();
+				break;
+			case 1:
+				entry.Unfocus();
+				break;
+			case 2:
+				editor.Unfocus();
+				break;
+			default:
+				_action = 0;
+				break;
+		}
+
+		_action = (_action + 1) % 3;
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue29558.cs

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+#if ANDROID ///This test only runs on Android because UnFocus behavior differs across platforms: on Android the input view should remain visible after UnFocus, whereas on iOS it automatically hides.
+
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+
+public class Issue29558 : _IssuesUITest
+{
+	public Issue29558(TestDevice testDevice) : base(testDevice) { }
+
+	public override string Issue => "Input controls should not change keyboard visibility";
+
+	[Test]
+	[Category(UITestCategories.SoftInput)]
+	public void Issue29558InputViewShouldNotHideOnUnfocusCall()
+	{
+		bool isKeyboardVisible;
+		App.WaitForElement("unfocusButton");
+
+		List<string> inputControls = ["entry", "editor", "searchBar", "searchHandler"];
+		foreach (var control in inputControls)
+		{
+			App.Click(control);
+			isKeyboardVisible = App.IsKeyboardShown();
+			Assert.That(isKeyboardVisible, Is.True);
+			App.Click("unfocusButton");
+			isKeyboardVisible = App.IsKeyboardShown();
+			Assert.That(isKeyboardVisible, Is.True);
+			App.DismissKeyboard();
+			isKeyboardVisible = App.IsKeyboardShown();
+			Assert.That(isKeyboardVisible, Is.False);
+		}
+	}
+}
+#endif