I have an application which takes characters from a web page and compares them to a UILabel in the application. What I want to do is enable the app to continue to do this even when the user has placed the app in a suspended state. All I have found online and in the documentation is the way to schedule a UILocalNotification while still in the active state. In the documentation, it states that you can declare certain permissions in the info.plist. I looked at the categories, but my application cannot really fit any of those. Is there a way for me to continue comparing the two strings and scheduling a notification while in the background? Thanks.
我有一个应用程序，它从网页中获取字符并将它们与应用程序中的UILabel进行比较。我想要做的是即使用户将应用程序置于挂起状态，也可以让应用继续执行此操作。我在网上和文档中找到的所有内容都是在处于活动状态时安排UILocalNotification的方法。在文档中，它声明您可以在info.plist中声明某些权限。我查看了类别，但我的应用程序不能真正适合这些类别。有没有办法让我继续比较两个字符串并在后台安排通知？谢谢。
1 个解决方案
#1
0
iOS doesn't really support multi-tasking in the manner you require. (i.e.: You can't simply carry on processing data in the background unless you're a very specific kind of app such as a VOIP service, etc.) otherwise you're likely to end up being terminated.
iOS并不真正支持您需要的多任务处理。 （即：你不能简单地在后台继续处理数据，除非你是一个非常特殊的应用程序，如VOIP服务等），否则你很可能最终被终止。
However, one possible solution would be to carry our this monitoring on a separate system (e.g.: a web server that your app interacts with) rather than within the app itself. You'd therefore:
但是，一种可能的解决方案是在单独的系统（例如：您的应用与之交互的Web服务器）上进行此监控，而不是在应用程序本身内。你因此：
-
Communicate the required string/web page to your web service
将所需的字符串/网页传递给您的Web服务
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Carry out the processing on the web server.
在Web服务器上执行处理。
-
Send a push notification to your app if the string was found on the page in question.
如果在相关页面上找到字符串，则向您的应用发送推送通知。
#1
0
iOS doesn't really support multi-tasking in the manner you require. (i.e.: You can't simply carry on processing data in the background unless you're a very specific kind of app such as a VOIP service, etc.) otherwise you're likely to end up being terminated.
iOS并不真正支持您需要的多任务处理。 （即：你不能简单地在后台继续处理数据，除非你是一个非常特殊的应用程序，如VOIP服务等），否则你很可能最终被终止。
However, one possible solution would be to carry our this monitoring on a separate system (e.g.: a web server that your app interacts with) rather than within the app itself. You'd therefore:
但是，一种可能的解决方案是在单独的系统（例如：您的应用与之交互的Web服务器）上进行此监控，而不是在应用程序本身内。你因此：
-
Communicate the required string/web page to your web service
将所需的字符串/网页传递给您的Web服务
-
Carry out the processing on the web server.
在Web服务器上执行处理。
-
Send a push notification to your app if the string was found on the page in question.
如果在相关页面上找到字符串，则向您的应用发送推送通知。