sdwebimage

问题 As the title would suggest im using JSQMessagesViewController. Id like each user to have their own Avatar [UIImage] ill be getting this from a URL in FirebaseDatabase and extracting it via. SDWebImage. I am able to get this inside; override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { let cell = super.collectionView(collectionView, cellForItemAt: indexPath) as! JSQMessagesCollectionViewCell let message = messages

问题 There are many third parties libraries for loading a network image and then store it into a disk and/or memory. However it is very easy to implement it using simple NSURLSession API call. here is the code: NSURLCache *myCache = [[NSURLCache alloc] initWithMemoryCapacity: 16384 diskCapacity: 268435456 diskPath: cachePath]; // these numbers are only for the usage example. defaultConfigObject.URLCache = myCache; defaultConfigObject.requestCachePolicy = NSURLRequestUseProtocolCachePolicy;

问题 i'm wondering if there is an upper limit on how many setImageWithUrl messages can be submitted at one time ?i'm trying to load 30 photos , 10 of them are downloaded successful but the others entered in the requestFailed when trying to debug the issue any hints or clarification ? Thanks 回答1: For those who would come here seeking the answer about maximum number of concurrent downloads in SDWebImage, I would like to add to the previous answer. I would not recommend changing init of

问题 I use SDWebImage to download images asynchronously to my UIImageView s. Most images that received are of acceptable sizes, and can be easily downloaded, and set to the UIImageView s. However there are times, when the source image at the URL is of insanely high resolution (relative to the size of my imageView - 60x60). In such cases, the image is never set. Sometimes my app crashes, sometimes, nothing happens (image stays nil ), and in a very rare case I received an error something like :

问题 I want to set the UIButton background image using SDWebImage. Code :- [btn.imageView setImageWithURL:[NSURL URLWithString:@"image url here"] placeholderImage:[UIImage imageNamed:@"placeholder"]]; Thanks 回答1: There are method for this in SDWebImage : SDWebImage / SDWebImage / UIButton+WebCache.h Import this file in your class: #import <SDWebImage/UIButton+WebCache.h> Use any of this method: - (void)sd_setBackgroundImageWithURL:(NSURL *)url forState:(UIControlState)state; - (void)sd

问题 I checked some answers on this, but this is specific to my code, and I cannot get this to work. Any thoughts? Error starts at completed:^(UIImage *image, NSError *... Full code //Load from URL NSURL *url =[NSURL URLWithString:image.imageURL]; SDWebImageManager *manager = [SDWebImageManager sharedManager]; [manager downloadWithURL:url options:0 progress:^(NSUInteger receivedSize, long long expectedSize) { // progression tracking code } completed:^(UIImage *image, NSError *error,

问题 I am trying to get images into the ImageSlideshow with SDWebImage. I can get the images but can't format them. I hope I am making sense. let url="https://myoscapp.com/boot/json_procuct_info.php" Alamofire.request(url, method: .get).validate().responseJSON { response in switch response.result { case .success(let value): let json = JSON(value) let imageslider=json[0]["products_gallery"].array if json[0]["products_gallery"].array != nil { let imageQuantity=imageslider?.count var i = 0 while i <

问题 I am using SDWebImage. In my table, each row has image and a label. As you can see, image cannot be seen. But when I go back to parent view controller, and come here again, they are shown. The code I am using is: [cell.imageView setImageWithURL:[NSURL URLWithString:serie.image] placeholderImage:[UIImage imageNamed:@"placeholder.png"] options:SDWebImageRefreshCached]; So, where I am wrong? 回答1: Answer: get/make a transparent png, and use it as your placeholder image. Actually, it is not a bug

问题 I am using SDWebimage to load images on my tablkeview I am following this tutorial Now I stuck on a problem,If I scroll down and hit back before images get loaded the app got crashes.How can I solve this ? How to cancel the SDWebImage download. I have gone through some answers and discussions.But none of them helped me and could not use them Please help me I am using [cell.UserImage setImageWithURL:[NSURL URLWithString:[SDWebArray objectAtIndex:indexPath.row]] placeholderImage:[UIImage

问题 I am working on an iOS application which interacts with an API using alamofire and swiftyJSON. In this api I get a bunch of values returned and one of them is images. the Images returned comes in form of an array but i am able to iterate through the array and display a single image. To make the application more advanced, I decided to implement UIPageViewController class in my application. I called the API function and tried to pass my images into view controllers. List of things in my