xamarin.ios 本地通知推送

Posted 2020-10-13 醉梦ai天涯

  由于ios10版本以后UILocalNotification被标为弃用了，所以要添加新的本地通知推送功能，下面提供一些代码参考。

  一、先在AppDelegate.cs上注册本地通知推送功能。

 1  public override bool FinishedLaunching(UIApplication app, NSDictionary options)
 2         {
 3             global::Xamarin.Forms.Forms.Init();
 4             global::ZXing.Net.Mobile.Forms.iOS.Platform.Init();
 5             Renderers.KeyboardOverlapRenderer.Init();
 6 
 7             if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
 8             {
 9                 //Notification framework.
10                 UNUserNotificationCenter.Current.RequestAuthorization(UNAuthorizationOptions.Alert | UNAuthorizationOptions.Badge | UNAuthorizationOptions.Sound, (approved, err) =>
11                 {
12                     // Handle approval
13                 });
14 
15                 //Get current notification settings.
16                 UNUserNotificationCenter.Current.GetNotificationSettings((settings) =>
17                 {
18                     var alertsAllowed = (settings.AlertSetting == UNNotificationSetting.Enabled);
19                 });
20                 UNUserNotificationCenter.Current.Delegate = new UserNotificationCenterDelegate();
21             }
22 ｝

同时用到一个处理函数，代码如下：

 1 public class UserNotificationCenterDelegate : UNUserNotificationCenterDelegate
 2     {
 3         #region Constructors
 4         public UserNotificationCenterDelegate()
 5         {
 6         }
 7         #endregion
 8 
 9         #region Override Methods
10         public override void WillPresentNotification(UNUserNotificationCenter center, UNNotification notification, Action<UNNotificationPresentationOptions> completionHandler)
11         {
12             // Do something with the notification
13             Console.WriteLine("Active Notification: {0}", notification);
14 
15             // Tell system to display the notification anyway or use
16             // `None` to say we have handled the display locally.
17             completionHandler(UNNotificationPresentationOptions.Alert | UNNotificationPresentationOptions.Sound);
18         }
19         #endregion
20     }

通知处理函数

二、定义调用本地通知推送的函数，如果是xamarn.From可以写成一个Dependencies方法来调用。

 1 public void ShowNotification(string strNotificationTitle,
 2                                 string strNotificationSubtitle,
 3                                 string strNotificationDescription,
 4                                 string strNotificationIdItem,
 5                                 string strDateOrInterval,
 6                                 int intervalType,
 7                                 string extraParameters)
 8         {
 9             //intervalType: 1 - set to date | 2 - set to interval
10 
11 
12             //Object creation.
13             var notificationContent = new UNMutableNotificationContent();
14 
15 
16             //Set parameters.
17             //notificationContent.Title = "Mesince";
18             notificationContent.Subtitle = strNotificationSubtitle;
19             notificationContent.Body = strNotificationDescription;
20             //notificationContent.Badge = 1;
21             notificationContent.Badge = Int32.Parse(strNotificationIdItem);
22             notificationContent.Sound = UNNotificationSound.Default;
23 
24 
25             //Set date.
26             //DateTime notificationContentDate = Convert.ToDateTime(strDateOrInterval);
27             DateTime notificationContentDate = DateTime.Now.AddMilliseconds(10);
28 
29             NSDateComponents notificationContentNSCDate = new NSDateComponents();
30             notificationContentNSCDate.Year = notificationContentDate.Year;
31             notificationContentNSCDate.Month = notificationContentDate.Month;
32             notificationContentNSCDate.Day = notificationContentDate.Day;
33             notificationContentNSCDate.Hour = notificationContentDate.Hour;
34             notificationContentNSCDate.Minute = notificationContentDate.Minute;
35             notificationContentNSCDate.Second = notificationContentDate.Second;
36             notificationContentNSCDate.Nanosecond = (notificationContentDate.Millisecond * 1000000);
37 
38 
39             //Set trigger and request.
40             var notificationRequestID = Guid.NewGuid().ToString();
41             UNNotificationRequest notificationRequest = null;
42             //在某月某日某时触发
43             if (intervalType == 1)
44             {
45                 var notificationCalenderTrigger = UNCalendarNotificationTrigger.CreateTrigger(notificationContentNSCDate, false);
46 
47                 notificationRequest = UNNotificationRequest.FromIdentifier(notificationRequestID, notificationContent, notificationCalenderTrigger);
48             }
49             else
50             {
51                 //一定时间后触发
52                 var notificationIntervalTrigger = UNTimeIntervalNotificationTrigger.CreateTrigger(Int32.Parse(strDateOrInterval), false);
53 
54                 notificationRequest = UNNotificationRequest.FromIdentifier(notificationRequestID, notificationContent, notificationIntervalTrigger);
55             }
56 
57 
58             //Add the notification request.
59             UNUserNotificationCenter.Current.AddNotificationRequest(notificationRequest, (err) =>
60             {
61                 if (err != null)
62                 {
63                     System.Diagnostics.Debug.WriteLine("Error : " + err);
64                 }
65             });
66         }

定义调用方法

方法中定义了两种方式，只实现了一种。

三、上面是Ios 10以上版本的方法，旧版本的方法在此也放出来：

 1 if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
 2                 {
 3                     ShowNotification(Title, Title, Content, "1", "2017-28-02 08:30:00", 1, "");
 4                 }
 5                 else
 6                 {
 7                     var settings = UIUserNotificationSettings.GetSettingsForTypes(UIUserNotificationType.Alert | UIUserNotificationType.Sound, null);
 8                     UIApplication.SharedApplication.RegisterUserNotificationSettings(settings);
 9 
10                     UILocalNotification notification = new UILocalNotification();
11                     notification.TimeZone = NSTimeZone.DefaultTimeZone;
12                     notification.AlertLaunchImage = "ico.png";
13                     notification.FireDate = NSDate.FromTimeIntervalSinceNow(0);
14                     notification.AlertAction = AppResource.提示;//获取得访问消息中心权限对话框标题
15                     notification.AlertTitle = Title;
16                     notification.AlertBody = Content;
17                     if (CurrentApp.HasSound)
18                     {
19                         notification.SoundName = UILocalNotification.DefaultSoundName;
20                     }
21                     if (CurrentApp.HasVibrate)
22                     {
23                     }
24                     //判断是否开启新邮件提醒
25                     if (CurrentApp.NewMialRemind)
26                     {
27                         //UIApplication.SharedApplication.ScheduleLocalNotification(notification);
28                         //立即触发一个通知
29                         UIApplication.SharedApplication.PresentLocalNotificationNow(notification);
30                     }
31                 }

IOS 10 以下版本方法