codegefluester blog

Ohne großen Kommentar, hier ein kleines Code-Snippet für die iOS Entwickler unter den Lesern. Das ganze ist eine Erweiterung des UIImageView’s um die Funktion des asynchronen Laden eines Bildes. Bei Fragen einen Kommentar hinterlassen.

AsynchImageView.h
#import <Foundation/Foundation.h>
@interface AsynchImageView : UIImageView {
NSMutableData *responseData;
}
@property (nonatomic, retain) NSMutableData *responseData;
@end

AsynchImageView.m
#import "AsynchImageView.h"
@implementation AsynchImageView
@synthesize responseData;
- (id)initWithURL:(NSURL *)imageURL {
[super init];
NSURLRequest *request = [[NSURLRequest alloc] initWithURL:imageURL];
[[NSURLConnection alloc] initWithRequest:request delegate:self];
NSLog(@"go url: %@", imageURL);
return self;
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
responseData = [[NSMutableData alloc] init];
[responseData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
[connection release];
self.image = [UIImage imageWithData:self.responseData];
[self setFrame:CGRectMake(0, 0, self.image.size.width, self.image.size.height)];
[responseData release];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
[connection release];
NSLog(@"%@", [error description]);
}
- (void)dealloc {
[super dealloc];
[responseData release];
}
@end