在iOS 7中调用新ViewController时如何清除缓存？

Question

I use NSURLConnection to send request on server NSURLConnection increase cache memory and application crash due to low memory. I use this code for clearing Cache:

[[NSURLCache sharedURLCache] removeAllCachedResponses];

But in iOS 7 this code doesn't work any more. Does anyone have any idea how to clear cache memory ?

Answer 1

You can create an NSURLCache with a specific memory or disk usage limitation with -setDiskCapacity: or -setMemoryCapacity: . You can clear the cache in UIViewController 's -viewWillDisappear: or -viewDidDisappear: .