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我没有使用ASIHTTPRequest缓存功能获得缓存结果。我遵循文档的指示。当我有互联网接入时,下面的作品完美无缺。此时,我将打开飞行模式并关闭多任务应用程序。当我这样做时,我不会异步调用requestFinished。我尝试了一堆缓存策略,但似乎没有这样做。有没有人有任何想法?ASIHTTPRequest缓存不起作用
目标:能够在没有互联网连接的情况下获得缓存的JSON响应(成功从互联网加载一次后)。
- (void)viewDidLoad
{
if (!networkQueue) {
networkQueue = [[ASINetworkQueue alloc] init];
}
[networkQueue reset];
[networkQueue setRequestDidFinishSelector:@selector(imageFetchComplete:)];
[networkQueue setRequestDidFailSelector:@selector(imageFetchFailed:)];
[networkQueue setShowAccurateProgress:true];
[networkQueue setDelegate:self];
//Turn on default caching
[ASIHTTPRequest setDefaultCache:[ASIDownloadCache sharedCache]];
[self loadData];
[super viewDidLoad];
}
-(IBAction)loadData
{
NSURL *url = [NSURL URLWithString:@"http://SOME_JSON_URL"];
ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
[request setDelegate:self];
[request setCacheStoragePolicy:ASICachePermanentlyCacheStoragePolicy];
[request startAsynchronous];
}
- (void)requestFinished:(ASIHTTPRequest *)request
{
if ([request didUseCachedResponse])
{
NSLog(@"Did use cache!");
}
NSString *responseString = [request responseString];
NSLog(@"%@", responseString);
}
@JiaYow:事实证明,如果我明确设置到期[请求setSecondsToCache:60 * 60 * 24 * 30],它作品。谢谢。 – Ryan 2012-03-01 14:27:29