iOS8后台获取问题 [英] iOS8 background fetch issue

问题描述

我已经在ios8之前的版本中使用了后台抓取功能，没有任何问题.但是在ios8中，当我在手机上模拟后台获取时，我首先收到一个错误，提示我没有播放声音的权限，因此我没有收到任何本地通知.然后在打开应用程序时，应用程序崩溃了，我得到了这个奇怪的错误:

I have used background fetch in pre ios8 without a problem. But in ios8 when i simulate background fetch on my phone i first get an error that i do not have permission to play sound therefore i do not get any local notifications. Then upon opening the app, the app crashes and i get this wierd error:

由于未捕获的异常而终止应用程序 "NSInternalInconsistencyException"，原因:此请求已被 绝望的-您不能调用-sendResponse:两次，也不能在对其进行编码之后

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'this request has been neutered - you can't call -sendResponse: twice nor after encoding it'

推荐答案

与此相关 iOS 8 NSInternalInconsistencyException

查找从以下方法获得的调用完成处理程序的地方:

Look for places where you call completion handlers you get from methods like this:

- (void)application:(UIApplication *)application performFetchWithCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler

这篇关于iOS8后台获取问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！