Notification with a Sound File

Show local notification

var notification = new NotificationRequest
{
    NotificationId = 100,
    Title = "Test",
    Description = "Test Description",
    // if not specified, default sound will be played. In Android, this must be set at the channel level. 
    Sound = DeviceInfo.Platform == DevicePlatform.Android ?  "<file name without extension>" : "file name with extension", 
};
LocalNotificationCenter.Current.Show(notification);

.Net MAUI

public static class MauiProgram
{
	public static MauiApp CreateMauiApp()
	{
		var builder = MauiApp.CreateBuilder();
		builder
			.UseMauiApp<App>()
			....
			.UseLocalNotification(config =>
			{
                                config.AddAndroid(android =>
				{
					android.AddChannel(new NotificationChannelRequest
					{
						Sound = "good_things_happen"
					});
				});
			});
               return builder.Build();
	}
}

Xamarin.Forms

public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
	protected override void OnCreate(Bundle savedInstanceState)
	{
                .....
                // Must create a Notification Channel when API >= 26
                // you can create multiple Notification Channels with different names.
                LocalNotificationCenter.CreateNotificationChannel(
                        new Plugin.LocalNotification.Platform.Droid.NotificationChannelRequest
                        {
                                Sound = Resource.Raw.<file name without extension>.ToString()
                        });
		.....	
                LoadApplication(new App());
		.....	
		LocalNotificationCenter.NotifyNotificationTapped(Intent);
	}

	protected override void OnNewIntent(Intent intent)
	{
		LocalNotificationCenter.NotifyNotificationTapped(intent);
		base.OnNewIntent(intent);
	}
}

Android

1. Have to respect Android naming convention (everything in lowercase letters)
2. Must be 128kps (320kps does not work)

.Net MAUI

Add the sound file under Platforms\Android\Resources\raw (create the raw folder if does not exist)

Xamarin.Forms

Add the sound file under Resources\raw (create the raw folder if does not exist)

When Android >= 26, Sound must be set in Channel level. (After Version 4.0.0).

Create different Notification Channels with different names if you want to play different sound files.

iOS

Add the sound file under Resources.

.Net MAUI

Also, make sure to add BundleResource link in csproj

  <ItemGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">
    <BundleResource Include="Platforms\iOS\Resources\good_things_happen.aiff" Link="Resources\good_things_happen.aiff" />
  </ItemGroup>

Xamarin.Forms