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Usage 9.2.0

Elvin (Tharindu) Thudugala edited this page Jul 26, 2022 · 1 revision

Setup

Platform Support

Feature Xamarin.iOS Xamarin.Android
Required SDK >= 10 >= API 19
Title
Description
Subtitle
Scheduled
Custom Sounds
Images
Notification Actions
Clear Delivered Notifications
Get Pending Notifications
Get Delivered Notifications

Usage

Show local notification

var notification = new NotificationRequest
{
    NotificationId = 100,
    Title = "Test",
    Description = "Test Description",
    ReturningData = "Dummy data", // Returning data when tapped on notification.
    Schedule = 
    {
        NotifyTime = DateTime.Now.AddSeconds(30) // Used for Scheduling local notification, if not specified notification will show immediately.
    }
};
await NotificationCenter.Current.Show(notification);

Or with Notification Request Builder

await NotificationCenter.Current.Show((notification) => notification                     
			.WithScheduleOptions((schedule) => schedule
					.NotifyAt(DateTime.Now.AddSeconds(30)) // Used for Scheduling local notification, if not specified notification will show immediately.
					.Build())
                        .WithTitle("Test Title")
                        .WithDescription("Test Description")
                        .WithReturningData("Dummy Data") // Returning data when tapped on notification.
                        .WithNotificationId(100)
                        .Create());

With platform specific options

await NotificationCenter.Current.Show((notification) => notification
                    .WithScheduleOptions((schedule) => schedule
					.NotifyAt(DateTime.Now.AddSeconds(30))
					.Build())
                    .WithAndroidOptions((android) => android
                         .WithAutoCancel(true)
                         .WithChannelId("General")
                         .WithPriority(NotificationPriority.High)
                         .WithOngoingStatus(true)
                         .Build())
                    .WithiOSOptions((ios) => ios
                        .WithForegroundAlertStatus(true)
                        .WithForegroundSoundStatus(true)
                        .Build())
                    .WithReturningData("Dummy Data")
                    .WithTitle("Test Title")
                    .WithDescription("Test Description")
                    .WithNotificationId(100)
                    .Create());

Receive local notification tap event

public partial class App : Application
{
	public App()
	{
		InitializeComponent();

		// Local Notification tap event listener
		NotificationCenter.Current.NotificationTapped += OnLocalNotificationTapped;

		MainPage = new MainPage();
	}
	
	private void OnLocalNotificationTapped(NotificationEventArgs e)
    	{
		// your code goes here
	}
}

Notification received event

On iOS this event is fired only when the app is in foreground

public partial class App : Application
{
	public App()
	{
		InitializeComponent();

		// Local Notification received event listener
		NotificationCenter.Current.NotificationReceived += OnLocalNotificationReceived;

		MainPage = new MainPage();
	}
	
	private void OnLocalNotificationReceived(NotificationEventArgs e)
    	{
		// your code goes here
	}
}

Platform Specific Notes

Android

Project should target Android framework 12.0+

image

Setup

To receive Local Notification tap event. Include the following code in the OnNewIntent() method of MainActivity:

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 created multiple Notification Channels with different names.
        	NotificationCenter.CreateNotificationChannel();		
		.....		
		LoadApplication(new App());
		.....	
		NotificationCenter.NotifyNotificationTapped(Intent);
	}

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

iOS

Setup

You must get permission from the user to allow the app to show local notifications. Also, To receive Local Notification tap event. Include the following code in the FinishedLaunching() method of AppDelegate:

public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate
{        
        public override bool FinishedLaunching(UIApplication app, NSDictionary options)
        {
            global::Xamarin.Forms.Forms.Init();

            // Ask the user for permission to show notifications on iOS 10.0+ at startup.
            // If not asked at startup, user will be asked when showing the first notification.
            Plugin.LocalNotification.NotificationCenter.AskPermission();

            LoadApplication(new App());

            return base.FinishedLaunching(app, options);
        }

	public override void WillEnterForeground(UIApplication uiApplication)
        {
            Plugin.LocalNotification.NotificationCenter.ResetApplicationIconBadgeNumber(uiApplication);
        }
}