How to send and receive push notifications for Windows Phone 8.1

Question

I followed Microsoft's article on sending and receiving push notifications on Windows Phone 8.0:

https://msdn.microsoft.com/en-us/library/windows/apps/hh202967(v=vs.105).aspx

It works fine, but now we are creating a new Windows Phone 8.1 application and trying to rewrite the same 8.0 code, but some classes are not available in WP 8.1.

Please help me how we can implement them for Windows Phone 8.1.

Answer 1

Here is my class that I use to receive push notifications and handle ChannelUri . Just call the UpdateChannelUri method. If necessary, the Uri channel will be updated, and the ChannelUriUpdated event will be fired, and the same will be saved in the application data settings.

If your application is running and you receive a notification, one of four methods will be executed with the contents of the notifications, determined by the type of notification.

 public sealed class PushService { private const string ChannelUriKey = "ChannelUri"; private const string ChannelUriDefault = null; private PushNotificationChannel _channel; private string _channelUri; /// <summary> /// Initializes a new instance of the <see cref="Services.PushService"/> class. /// </summary> public PushService() { this._channelUri = LocalSettingsLoad(ApplicationData.Current.LocalSettings, ChannelUriKey, ChannelUriDefault); } /// <summary> /// Gets the push notification channel URI. If no channel URI was yet created /// then the value will be <c>null</c>. /// </summary> public string ChannelUri { get { return _channelUri; } private set { if (_channelUri != value) { this._channelUri = value; LocalSettingsStore(ApplicationData.Current.LocalSettings, ChannelUriKey, value); } } } /// <summary> /// Requests a new push channel URI. /// </summary> public async Task<string> UpdateChannelUri() { var retries = 3; var difference = 10; // In seconds var currentRetry = 0; do { try { _channel = await PushNotificationChannelManager.CreatePushNotificationChannelForApplicationAsync(); _channel.PushNotificationReceived += OnPushNotificationReceived; if (!_channel.Uri.Equals(ChannelUri)) { ChannelUri = _channel.Uri; // TODO send channel uri to your server to your server this.RaiseChannelUriUpdated(); return _channel.Uri; } } catch { // Could not create a channel } await Task.Delay(TimeSpan.FromSeconds(difference)); } while (currentRetry++ < retries); return null; } private void OnPushNotificationReceived(PushNotificationChannel sender, PushNotificationReceivedEventArgs args) { switch (args.NotificationType) { case PushNotificationType.Badge: this.OnBadgeNotificationReceived(args.BadgeNotification.Content.GetXml()); break; case PushNotificationType.Tile: this.OnTileNotificationReceived(args.TileNotification.Content.GetXml()); break; case PushNotificationType.Toast: this.OnToastNotificationReceived(args.ToastNotification.Content.GetXml()); break; case PushNotificationType.Raw: this.OnRawNotificationReceived(args.RawNotification.Content); break; } args.Cancel = true; } private void OnBadgeNotificationReceived(string notificationContent) { // Code when a badge notification is received when app is running } private void OnTileNotificationReceived(string notificationContent) { // Code when a tile notification is received when app is running } private void OnToastNotificationReceived(string notificationContent) { // Code when a toast notification is received when app is running // Show a toast notification programatically var xmlDocument = new XmlDocument(); xmlDocument.LoadXml(notificationContent); var toastNotification = new ToastNotification(xmlDocument); //toastNotification.SuppressPopup = true; ToastNotificationManager.CreateToastNotifier().Show(toastNotification); } private void OnRawNotificationReceived(string notificationContent) { // Code when a raw notification is received when app is running } public event EventHandler<EventArgs> ChannelUriUpdated; private void RaiseChannelUriUpdated() { if (ChannelUriUpdated != null) { ChannelUriUpdated(this, new EventArgs()); } } public static T LocalSettingsLoad<T>(ApplicationDataContainer settings, string key, T defaultValue) { T value; if (settings.Values.ContainsKey(key)) { value = (T)settings.Values[key]; } else { // Otherwise use the default value. value = defaultValue; } return value; } public static bool LocalSettingsStore(ApplicationDataContainer settings, string key, object value) { bool valueChanged = false; if (settings.Values.ContainsKey(key)) { // If the key exists if (settings.Values[key] != value) { // If the value has changed, store the new value settings.Values[key] = value; valueChanged = true; } } else { // Otherwise create the key settings.Values.Add(key, value); valueChanged = true; } return valueChanged; } }