每隔30秒UILocalNotification [英] UILocalNotification every 30 seconds

问题描述

我正在尝试使用以下逻辑设置 UILocalNotification 每30秒运行一次，但它似乎行为不端。有两个问题：

I am trying to setup a UILocalNotification to run every 30 seconds using the following logic, however it seems to be misbehaving. There are 2 issues:

1. 当通知被解雇时，似乎有很多都是一次性的，而不是每30秒一次。


2. 应用程序图标徽章编号似乎没有增加。它只停留在1。

请有人帮我弄清楚我做错了吗？

Please can someone help me work out what I've done wrong?

// Create 'base' notification we can use
UILocalNotification *baseNotification = [[UILocalNotification alloc] init];
baseNotification.timeZone = [NSTimeZone defaultTimeZone];
baseNotification.repeatInterval = NSMinuteCalendarUnit;
baseNotification.alertBody = @"My Message.";
baseNotification.alertAction = @"My Alert Action";
baseNotification.soundName = UILocalNotificationDefaultSoundName;

UILocalNotification *alertOne = [baseNotification copy];
alertOne.applicationIconBadgeNumber++;
alertOne.fireDate = [[NSDate date] dateByAddingTimeInterval:30];
[[UIApplication sharedApplication] scheduleLocalNotification:alertOne];

UILocalNotification *alertTwo = [baseNotification copy];
alertTwo.applicationIconBadgeNumber++;
alertTwo.fireDate = [[NSDate date] dateByAddingTimeInterval:60];
[[UIApplication sharedApplication] scheduleLocalNotification:alertTwo];

推荐答案

目前无法实现自定义重复间隔。

There is currently no way possible to achieve custom repeats with intervals.

但是，通知系统最多可以排队64个通知，所以你最接近的事情就是根据需要手动设置多个通知（每个通知都有不同的通知）徽章的编号和另一个fireDate）然后通过设置新的通知列表来更新你的通知列表。

However, the notification system can queue up to 64 notifications so the closest thing you could do is to manually set as many notifications as you need (with each one having a different number for the badge and a different fireDate) and then have your notifications list updated by setting new ones when you're running low on them.

这将返回通知数量你在队列中：

This will return how many notifications you've in queue:

[[[UIApplication sharedApplication] scheduledLocalNotifications] count]

我还建议你阅读这篇文章以获得进一步的帮助：

There's also this post that I would recommend you reading for further help:

iOS徽章编号实时更新

祝你好运！

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