[英]How to get image size from SDWebImage?
我正在使用SDWebImage从url获取图像。 我想获得远程图像的大小,以便进行一些布局计算。 由于我只知道图像的url,我如何从SDWebImage对象中获取它?
请尝试这个,它可能适合你
-(UIImage *)downloadImageAsync:(NSString *)imageKey
{
NSLog(@"image key : %@",imageKey);
__block UIImage *returnedImage;
SDWebImageManager *manager = [SDWebImageManager sharedManager];
[manager downloadWithURL:[NSURL URLWithString:imageKey] options:0 progress:^(NSUInteger receivedSize, long long expectedSize){
NSLog(@"received size %d expected size %lld", receivedSize, expectedSize);
}completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType,BOOL finished){
if(image && finished) {
returnedImage = image;
}
}];
if(returnedImage == nil) {
NSLog(@"Returned Image Nil");
}
return returnedImage;
}
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