我正在尝试使用iOS 10的UserNotifications框架。
如果我不传入触发器,通知似乎工作得很好。它们会立即出现在app中。但我需要传递触发的延迟时间。有人能看到我代码中的缺陷吗?它应该让它延迟15秒,但它从来没有响过。
UNMutableNotificationContent* content = [[UNMutableNotificationContent alloc] init];
content.title = [NSString localizedUserNotificationStringForKey:@"Hello!" arguments:nil];
content.body = [NSString localizedUserNotificationStringForKey:@"Hello_message_body"
arguments:nil];
content.sound = [UNNotificationSound defaultSound];
content.categoryIdentifier = @"WhatUpsw";
NSString *imageName = @"hug2";
NSURL *url = [[NSBundle mainBundle]URLForResource:imageName withExtension:@"jpg"];
UNNotificationAttachment *attachment = [UNNotificationAttachment attachmentWithIdentifier:imageName URL:url options:nil error:nil];
content.attachments = @[attachment];
// Deliver the notification in five seconds.
UNTimeIntervalNotificationTrigger* trigger = [ UNTimeIntervalNotificationTrigger
triggerWithTimeInterval:15 repeats:NO];
UNNotificationRequest* request = [UNNotificationRequest requestWithIdentifier:@"FiveSecondsw"
content:content trigger:trigger];
// Schedule the notification.
[center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
if (error != nil) {
NSLog(@"Something went wrong: %@",error);
} else {
NSLog(@"All good!: %@", request);
}
}];我还看到检查挂起的请求:
<__NSArrayM 0x17024d170>(
<UNNotificationRequest: 0x1702235c0; identifier: FiveSecond, content: <UNNotificationContent: 0x17010bd00; title: Hello!, subtitle: (null), body: Hello_message_body, categoryIdentifier: , launchImageName: , peopleIdentifiers: (
), threadIdentifier: , attachments: (
), badge: (null), sound: <UNNotificationSound: 0x1700b4580>, hasDefaultAction: YES, defaultActionTitle: (null), shouldAddToNotificationsList: YES, shouldAlwaysAlertWhileAppIsForeground: NO, shouldLockDevice: NO, shouldPauseMedia: NO, isSnoozeable: NO, fromSnooze: NO, darwinNotificationName: (null), darwinSnoozedNotificationName: (null), trigger: <UNTimeIntervalNotificationTrigger: 0x170223780; repeats: NO, timeInterval: 10.000000>>
)发布于 2017-08-19 02:35:44
是否只有当你的应用程序在前台运行时才会出现问题?如果在触发时间未到之前关闭应用或切换到其他应用,通知是否正常工作?
要在应用程序运行时显示通知,您需要在appController(_:didFinishLaunching:)中设置UNUserNotificationCenterDelegate
func appController(_ appController: TVApplicationController, didFinishLaunching options: [String : Any]?) {
// ...
UNUserNotificationCenter.current().delegate = self
// ...
}
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification,
withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
{
completionHandler(.alert)
}在启动完成之前,需要设置委托。
发布于 2020-03-18 10:17:33
我花了两天的时间在iOS 13上解决这个问题。结果发现我的通知标识符要么太长,要么因为我使用相同的字符串作为标题/消息的本地化字符串,它不起作用。
更改通知的ID,使其为1.短,2.与其他任何东西不同,解决了我的问题。
发布于 2017-02-10 01:01:07
我运行的是iOS 10.3Beta和Xcode8.3Beta2,所以这可能只是一个bug。为了解决这个问题,我删除了内容扩展,重新启动了Xcode,并再次添加了扩展。在那之后,每一条信息都传来了。
https://stackoverflow.com/questions/42012351
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