UIView+WebCache.h
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/*
* This file is part of the SDWebImage package.
* (c) Olivier Poitrey <rs@dailymotion.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
#import "SDWebImageCompat.h"
#if SD_UIKIT || SD_MAC
#import "SDWebImageManager.h"
/**
A Dispatch group to maintain setImageBlock and completionBlock. This key should be used only internally and may be changed in the future. (dispatch_group_t)
*/
FOUNDATION_EXPORT NSString * _Nonnull const SDWebImageInternalSetImageGroupKey;
/**
A SDWebImageManager instance to control the image download and cache process using in UIImageView+WebCache category and likes. If not provided, use the shared manager (SDWebImageManager)
*/
FOUNDATION_EXPORT NSString * _Nonnull const SDWebImageExternalCustomManagerKey;
typedef void(^SDSetImageBlock)(UIImage * _Nullable image, NSData * _Nullable imageData);
@interface UIView (WebCache)
/**
* Get the current image URL.
*
* Note that because of the limitations of categories this property can get out of sync
* if you use setImage: directly.
*/
- (nullable NSURL *)sd_imageURL;
/**
* Set the imageView `image` with an `url` and optionally a placeholder image.
*
* The download is asynchronous and cached.
*
* @param url The url for the image.
* @param placeholder The image to be set initially, until the image request finishes.
* @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values.
* @param operationKey A string to be used as the operation key. If nil, will use the class name
* @param setImageBlock Block used for custom set image code
* @param progressBlock A block called while image is downloading
* @note the progress block is executed on a background queue
* @param completedBlock A block called when operation has been completed. This block has no return value
* and takes the requested UIImage as first parameter. In case of error the image parameter
* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
* indicating if the image was retrieved from the local cache or from the network.
* The fourth parameter is the original image url.
*/
- (void)sd_internalSetImageWithURL:(nullable NSURL *)url
placeholderImage:(nullable UIImage *)placeholder
options:(SDWebImageOptions)options
operationKey:(nullable NSString *)operationKey
setImageBlock:(nullable SDSetImageBlock)setImageBlock
progress:(nullable SDWebImageDownloaderProgressBlock)progressBlock
completed:(nullable SDExternalCompletionBlock)completedBlock;
/**
* Set the imageView `image` with an `url` and optionally a placeholder image.
*
* The download is asynchronous and cached.
*
* @param url The url for the image.
* @param placeholder The image to be set initially, until the image request finishes.
* @param options The options to use when downloading the image. @see SDWebImageOptions for the possible values.
* @param operationKey A string to be used as the operation key. If nil, will use the class name
* @param setImageBlock Block used for custom set image code
* @param progressBlock A block called while image is downloading
* @note the progress block is executed on a background queue
* @param completedBlock A block called when operation has been completed. This block has no return value
* and takes the requested UIImage as first parameter. In case of error the image parameter
* is nil and the second parameter may contain an NSError. The third parameter is a Boolean
* indicating if the image was retrieved from the local cache or from the network.
* The fourth parameter is the original image url.
* @param context A context with extra information to perform specify changes or processes.
*/
- (void)sd_internalSetImageWithURL:(nullable NSURL *)url
placeholderImage:(nullable UIImage *)placeholder
options:(SDWebImageOptions)options
operationKey:(nullable NSString *)operationKey
setImageBlock:(nullable SDSetImageBlock)setImageBlock
progress:(nullable SDWebImageDownloaderProgressBlock)progressBlock
completed:(nullable SDExternalCompletionBlock)completedBlock
context:(nullable NSDictionary *)context;
/**
* Cancel the current download
*/
- (void)sd_cancelCurrentImageLoad;
#if SD_UIKIT
#pragma mark - Activity indicator
/**
* Show activity UIActivityIndicatorView
*/
- (void)sd_setShowActivityIndicatorView:(BOOL)show;
/**
* set desired UIActivityIndicatorViewStyle
*
* @param style The style of the UIActivityIndicatorView
*/
- (void)sd_setIndicatorStyle:(UIActivityIndicatorViewStyle)style;
- (BOOL)sd_showActivityIndicatorView;
- (void)sd_addActivityIndicator;
- (void)sd_removeActivityIndicator;
#endif
@end
#endif