我关注这个样本https://learn.microsoft.com/en-us/azure/notification-hubs/xamarin-notification-hubs-push-notifications-android-gcm https://learn.microsoft.com/en-us/azure/notification-hubs/xamarin-notification-hubs-push-notifications-android-gcm
我从我的生产项目中发布了我的 SendNotification 方法。
按照我的工作代码并更改您的方法。
void SendNotification (string messageBody, string title)
{
var intent = new Intent (this, typeof (SplashActivity));
intent.AddFlags (ActivityFlags.ClearTop);
var pendingIntent = PendingIntent.GetActivity (this, 0, intent, PendingIntentFlags.OneShot);
//if i want more than one notification ,different unique value in every call
Random u = new Random ();
if (Build.VERSION.SdkInt >= BuildVersionCodes.O) {
string channelName = Resources.GetString (Resource.String.channel_name);
NotificationCompat.Builder notificationBuilder;
notificationBuilder = new NotificationCompat.Builder (this, channelName)
.SetContentTitle (title)
.SetSmallIcon (Resource.Drawable.ic_stat_g)
.SetContentText (messageBody)
.SetAutoCancel (true)
.SetContentIntent (pendingIntent);
var notificationManager = GetSystemService (Context.NotificationService) as NotificationManager;
NotificationChannel channel = new NotificationChannel (channelName, "notification channel", NotificationImportance.Default);
notificationManager.CreateNotificationChannel (channel);
notificationManager.Notify (u.Next(), notificationBuilder.Build ());
}
else
{
NotificationCompat.Builder notificationBuilder;
notificationBuilder = new NotificationCompat.Builder (this)
.SetContentTitle (title)
.SetSmallIcon (Resource.Drawable.ic_stat_g)
.SetContentText (messageBody)
.SetAutoCancel (true)
.SetContentIntent (pendingIntent);
var notificationManager = GetSystemService (Context.NotificationService) as NotificationManager;
notificationManager.Notify (u.Next(), notificationBuilder.Build ());
}
}
首先不要使用 Android.App.Notification.Builder 已弃用。 NotificationCompat.Builder 是新的。
也许这是你的新代码
var intent = new Intent(this, typeof(MainActivity));
intent.AddFlags(ActivityFlags.ClearTop);
var pendingIntent = PendingIntent.GetActivity(this, 0, intent, PendingIntentFlags.OneShot);
if (Build.VERSION.SdkInt < BuildVersionCodes.O)
{
var notificationBuilder = new NotificationCompat.Builder(this)
.SetContentTitle(Header)
.SetSmallIcon(Resource.Drawable.icon)
.SetContentText(body)
.SetAutoCancel(true)
.SetContentIntent(pendingIntent);
var notificationManager = GetSystemService (Context.NotificationService) as NotificationManager;
notificationManager.Notify(0, notificationBuilder.Build());
}
else
{
var notificationBuilder = new NotificationCompat.Builder(this, Utils.CHANNEL_ID)
.SetContentTitle(Header)
.SetSmallIcon(Resource.Drawable.icon)
.SetContentText(body)
.SetAutoCancel(true)
.SetContentIntent(pendingIntent);
var notificationManager = GetSystemService (Context.NotificationService) as NotificationManager;
NotificationChannel channel = new NotificationChannel (Utils.CHANNEL_ID, "FCM Notifications", NotificationImportance.Default);
notificationManager.CreateNotificationChannel (channel);
notificationManager.Notify (0, notificationBuilder.Build ());
}