我有这样的代码
arrayWithImages = [[NSMutableArray alloc] init];
NSEnumerator *enumForNames = [arrayWithNames objectEnumerator];
NSEnumerator *enumForURLs = [arrayWithURLs objectEnumerator];
id objName, objURL;
while(objName = [enumForNames nextObject]) {
objURL = [enumForURLs nextObject];
UIImageView *anImage = nil;
[anImage setImageWithURL:[NSURL URLWithString:objURL]];
(...)
[arrayWithImages addObject:anImage];
}
每次我让SIGABRT符合“[arrayWithImages addObject:anImage];” 怎么了?
答案 0 :(得分:0)
我在setImageWithURL
上看不到UIImageView
方法。这是从哪里来的?
SIGABRT是否有任何输出崩溃?
试试这段代码:
// Download the image
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:objURL]];
// Make an UIImage out of it
UIImage *anImage = [UIImage imageWithData:imageData];
// Create an image view with the image
UIImageView *imageView = [[UIImageView alloc] initWithImage:anImage];
// Check to make sure it exists
if (imageView != nil) {
// Add it to your array
[arrayWithImages addObject:imageView];
else {
NSLog(@"Image view is nil");
}
请注意,您应该异步下载图像以避免挂起循环。 This blog post讨论异步图像下载。
此外,如果您知道[enumForURLs nextObject];
将返回NSString(甚至更好,NSURL),您应该将objURL
指定为NSString(或NSURL)类型。