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我正在使用 Flickr API 和 ObjectiveFlickr 构建一个免费的乐器 iPhone 应用程序。来自兴趣列表的随机照片显示在背景中,但我无法在不知道其大小的情况下将其居中。(所以我可以重置 UIWebView 框架)

我已经对此进行了一段时间的研究,如果答案非常简单,请对菜鸟有所怜悯——这是我第一次使用 Web 服务 API。=)

由于在收到来自兴趣提要的响应之前我不知道照片 ID,我将如何在响应中调用 flickr.photo.getSizes?这是我到目前为止所拥有的:

- (void)flickrAPIRequest:(OFFlickrAPIRequest *)inRequest didCompleteWithResponse:(NSDictionary *)inResponseDictionary{
 int randomResponse = arc4random() % 49;
 photoDict = [[inResponseDictionary valueForKeyPath:@"photos.photo"] objectAtIndex:randomResponse];

 NSString *photoID = [photoDict valueForKeyPath:@"id"];

 NSLog(@"%@",photoID);

 NSURL *photoURL = [flickrContext photoSourceURLFromDictionary:photoDict size:OFFlickrMediumSize];
 NSString *htmlSource = [NSString stringWithFormat:
       @"<html>"
       @"<head>"
       @"  <style>body { margin: 0; padding: 0; } </style>"
       @"</head>"
       @"<body>"
       @"<img src=\"%@\" />"
       @"</body>"
       @"</html>"
       , photoURL];

 [webView loadHTMLString:htmlSource baseURL:nil];
}
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1 回答 1

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通过将返回的图像加载到 UIImageView 中,我实现了我想要的行为。这是代码,希望对某人有所帮助:

- (void)flickrAPIRequest:(OFFlickrAPIRequest *)inRequest didCompleteWithResponse:(NSDictionary *)inResponseDictionary{
    int randomResponse = arc4random() % 49;
    photoDict = [[inResponseDictionary valueForKeyPath:@"photos.photo"] objectAtIndex:randomResponse];

    NSString *photoID = [photoDict valueForKeyPath:@"id"];

    NSLog(@"%@",photoID);

    NSURL *photoURL = [flickrContext photoSourceURLFromDictionary:photoDict size:OFFlickrMediumSize];

    NSData *receivedData = [[NSData dataWithContentsOfURL:
                             photoURL] retain];
    UIImage *image = [[UIImage alloc] initWithData:receivedData] ;
    NSLog(@"%i",image.size);

    randomImage.image = image;

    //[webView loadHTMLString:htmlSource baseURL:nil];
}
于 2010-04-16T14:00:01.023 回答