chore: Add required permission on iOS

Author: MartinZikmund

samples/Uno.Toolkit.Samples/Uno.Toolkit.Samples.Shared/Content/Helpers/MediaGalleryHelperSamplePage.xaml

@@ -19,7 +19,6 @@
                         <Button Command="{Binding Data.CheckAccessCommand}">Check access</Button>
                         <Button Command="{Binding Data.SaveCommand}">Save UnoLogo.png to gallery</Button>
                         <Button Command="{Binding Data.SaveRandomNameCommand}">Save with random name to gallery</Button>
-                        <Button Command="{Binding Data.SaveAndOverwriteCommand}">Save UnoLogo.png to gallery and overwrite</Button>
                     </StackPanel>
                 </DataTemplate>
             </sample:SamplePageLayout.DesignAgnosticTemplate>

samples/Uno.Toolkit.Samples/Uno.Toolkit.Samples.Shared/Content/Helpers/MediaGalleryHelperSamplePage.xaml.cs

@@ -109,24 +109,5 @@ public class MediaGalleryHelperSampleVM : ViewModelBase
 			}.ShowAsync();
 		}
 	});
-
-	public ICommand SaveAndOverwriteCommand => new Command(async (_) =>
-	{
-		if (await MediaGallery.CheckAccessAsync())
-		{
-			var file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/UnoLogo.png", UriKind.Absolute));
-			using var stream = await file.OpenStreamForReadAsync();
-			await MediaGallery.SaveAsync(MediaFileType.Image, stream, "UnoLogo.png");
-		}
-		else
-		{
-			await new ContentDialog
-			{
-				Title = "Permission required",
-				Content = "The app requires access to the device's gallery to save the image.",
-				CloseButtonText = "OK"
-			}.ShowAsync();
-		}
-	});
 #endif
 }

samples/Uno.Toolkit.WinUI.Samples/Uno.Toolkit.WinUI.Samples.Mobile/MacCatalyst/Info.plist

@@ -16,7 +16,8 @@
 		</array>
 		<key>XSAppIconAssets</key>
 		<string>Assets.xcassets/iconapp.appiconset</string>
-
+		<key>NSPhotoLibraryAddUsageDescription</key>
+		<string>This app would like to save photos to your gallery</string>
 		<!--
 		Adjust this to your application's encryption usage.
 		<key>ITSAppUsesNonExemptEncryption</key>

samples/Uno.Toolkit.WinUI.Samples/Uno.Toolkit.WinUI.Samples.Mobile/iOS/Info.plist

@@ -49,7 +49,8 @@
 	<string>Assets.xcassets/iconapp.appiconset</string>
 	<key>UIApplicationSupportsIndirectInputEvents</key>
 	<true/>
-
+	<key>NSPhotoLibraryAddUsageDescription</key>
+	<string>This app would like to save photos to your gallery</string>
 	<!--
 	Adjust this to your application's encryption usage.
 	<key>ITSAppUsesNonExemptEncryption</key>