だから私はサブクラス化し、それNSURLCache
を呼び出すたびにand thenを呼び出します。ここに私が持っているものがあります:loadHTMLFromString:
storeCachedRequest:forRequest:
cachedResponseForRequest:
- (NSCachedURLResponse *)cachedResponseForRequest:(NSURLRequest *)request
{
NSString *pathString = [[request URL] absoluteString];
NSCachedURLResponse * response = [super cachedResponseForRequest:request];
if (response != nil)
return response;
else {
NSString* myString= @"testing";
NSData* data=[myString dataUsingEncoding: NSASCIIStringEncoding ];
//
// Create the cacheable response
//
NSURLResponse *response =
[[[NSURLResponse alloc]
initWithURL:[request URL]
MIMEType:[self mimeTypeForPath:pathString]
expectedContentLength:[data length]
textEncodingName:nil]
autorelease];
NSCachedURLResponse * cachedResponse =
[[[NSCachedURLResponse alloc] initWithResponse:response data:data] autorelease];
[self storeCachedResponse:cachedResponse forRequest:request] ;
//NSLog(@"DEFAULT CACHE WITH URL %@", [[request URL] absoluteString]);
return [super cachedResponseForRequest:request];
}
return nil;
}
- (void)storeCachedResponse:(NSCachedURLResponse *)cachedResponse forRequest:(NSURLRequest *)request
{
[super storeCachedResponse:cachedResponse forRequest:request];
NSLog(@"STORE CACHED RESPONSE WITH URL %@", [[request URL] absoluteString]);
}
cachedResponseForRequest:
問題は、保存した直後に呼び出すと、応答が常にゼロになることです。どうしてこれなの?
私が持っていた:
NSURLRequest * req = [NSURLRequest requestWithURL:[NSURL URLWithString:self.imageSource_]];
NSCachedURLResponse * response = [[NSURLCache sharedURLCache] cachedResponseForRequest:req];
if (response == nil)
NSLog(@"RESPONSE IS NIL");
else {
NSString* theString = [[NSString alloc] initWithData:response.data encoding:NSASCIIStringEncoding];
NSLog(@"RESPONSE IS NOT NIL %@", theString);
}
そして、常に response is nil を出力します。URL 文字列は
storeCachedResponse
. 何らかの理由でキャッシュされていません。キャッシュサイズをある程度のサイズに設定しました。