sdwebimage

问题 I'm the new on swift. I have a question how to save image from url into permanent cache. Since URL live for only 30min and is expired after 30min, I'm using sdwebimage and saving image in disk and memory cache. My code is like the below. and it's working well. Problem is that sometimes image is not loaded because of unknown issue. I guessed that image is not saved permanently in cache..This is just my guess. So, I'd like to save image permanent cache. How can I do this? Or Is there anyone

问题 I'm facing the following problem, well I have a custom collection view, where I upload an image from the URL I get from a service, everything works fine at the moment but sometimes when scrolling or when I leave the screen and return, my collection view customized it is altered, it does not load correctly, I have seen several posts where they present the same problem in different cases, but trying to conclude that my problem is at the moment of using the SDWebImage library. I have seen that

问题 look at the code snippet below. i don't understand the code between #ifdef TARGET_OS_IPHONE and #endif,should i redraw a new image from the imageSource? why? - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [self.imageData appendData:data]; if ((self.options & SDWebImageDownloaderProgressiveDownload) && self.expectedSize > 0 && self.completedBlock) { // Get the total bytes downloaded const NSInteger totalSize = self.imageData.length; // Update the data source,

问题 In my method cellForItemAtIndexPath i have this code: SDWebImageManager *manager = [SDWebImageManager sharedManager]; [manager downloadWithURL:[NSURL URLWithString:coverURL] options:0 progress:^(NSInteger receivedSize, NSInteger expectedSize) { } completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) { RRRBigItemCell *cell = (RRRBigItemCell *)[collectionView cellForItemAtIndexPath:indexPath]; if (cell) { RRRImageView *coverView = (RRRImageView *)[cell

问题 I'm using SDWebImageDownloader to download an image and then show it on a cell, but I have the issue that if the image doesn't finish download once the view is unloaded, it causes that my app crashes. I'm using the code that is provided on the github page: [SDWebImageDownloader.sharedDownloader downloadImageWithURL:imageURL options:0 progress:^(NSInteger receivedSize, NSInteger expectedSize) { // progression tracking code } completed:^(UIImage *image, NSData *data, NSError *error, BOOL

问题 I have TableView with several text fields and image. For Image loading I use SDWebImage Library. Here is code for TableView Source public class ExperienceSource : UITableViewSource { //UINavigationController instance, to pass it to constructor private UINavigationController primNav { get; set; } private UITableView tableView { get; set; } List<Experience> TableItems; ExperienceTableViewController owner; public ExperienceSource(List<Experience> items,ExperienceTableViewController owner,

问题 I am attempting to download an image from foursquare( sourced from using the venue api) and I keep getting NSURLErrorFileDoesNotExist = -1100, errors for trying to grab the image. imageUrl = [NSURL URLWithString: [NSString stringWithFormat: [@"https://irs0.4sqi.net/img/general/720x400/1203715_jAVNrPE87IFuOUa69i1q5UXQ0bUAfjG8V-R_hBUL09c.jpg" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]]; //[cell.venueImageView sd_setImageWithURL:imageUrl placeholderImage:nil]; typeof

问题 I'm using the following code to lazy load an image into my UIImageView: [self.imv1 setImageWithURL:[NSURL URLWithString:myURL] placeholderImage:[UIImage imageNamed:@"loading.png"] completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) { // stuff here }]; When a user touches a button, I want the lazy loading of this to STOP completely, so that no image gets loaded and the download of the image stops. After I stop the lazy loading, I plan to load a different image into the same

问题 In my iOS app I have have a lots of view and image and labels are the subviews of the. view. My problem is while loading images from url or remote server only last image is loading from url . Other images are loaded with placeholders. Tried many ways but unable to solve it . My code and screenshot are provided below catScrollView=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 10, self.view.frame.size.width,300)]; catScrollView.contentSize = CGSizeMake(([popularCategoryArray count] * 90)/1.8

问题 How I can change a static value cacheMaxCacheAge when I use SDWebImage? What way is good? I need to cache images for 5 minutes. 回答1: In SDWebImage 5.0+ maxCacheAge renamed to maxDiskAge. You can set maximum caching time in seconds like this. Objetive-c [SDImageCache sharedImageCache].config.maxDiskSize = 60 * 5; //5 minutes Swift 4+ SDImageCache.shared.config.maxDiskAge = 60 * 5 //5 minutes Reference link: https://github.com/SDWebImage/SDWebImage/wiki/5.0-Migration-guide 回答2: SDWebImage is