iPhone应用程序cookie延迟

我唯一能想到的解决方法是在应用程序终止之前将cookie保存到用户默认值。打开应用程序后,查看用户默认值,取出cookie,并将其重写到cookie存储中。它可以工作,但是如果你的应用程序被强制终止,那么它就不是真的。

- (void)applicationDidFinishLaunching:(UIApplication *)application {    
    cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
    [cookieStorage setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];

    // Load the saved cookies
    NSDate *currentDate = [NSDate date];
    NSTimeInterval expirationAmount = 5 * 365 * 24 * 60 * 60;
    NSDate *expirationDate = [currentDate dateByAddingTimeInterval:expirationAmount];
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    for (id theKey in [defaults dictionaryRepresentation]) {
        if ([theKey hasPrefix:@"cookie:"]) {
            [self setCookie:[theKey substringFromIndex:7] value:[defaults objectForKey:theKey] expiration:[expirationDate description] domain:urlDomain];
        }
    }
}

- (void)applicationWillTerminate:(UIApplication *)application {
  // Save the cookies to the user defaults
  NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
  NSArray* theCookies = [cookieStorage cookies];
 for(NSHTTPCookie *myStr in theCookies) {
    [defaults setValue:[myStr value] forKey:[NSString stringWithFormat:@"cookie:%@", [myStr name]]];
     }
     [[NSUserDefaults standardUserDefaults] synchronize];
   }

有同样的问题。延迟实际上是从我的测试开始的30秒。我花了几天时间调试这个。可能有一种方法可以解决这个问题,方法是在30秒过去之前手动重新保存cookie,但我还没有尝试过。