From 6faa7bfcb5b73a31920ae7addf852673401f74f4 Mon Sep 17 00:00:00 2001
From: Giuseppe Lanza <gringoire986@gmail.com>
Date: Tue, 30 Jul 2013 17:14:52 +0200
Subject: [PATCH] added multiple download of images for animationImages
 property of UIImageView

---
 SDWebImage/UIImageView+WebCache.h |  9 +++++
 SDWebImage/UIImageView+WebCache.m | 55 +++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)

diff --git a/SDWebImage/UIImageView+WebCache.h b/SDWebImage/UIImageView+WebCache.h
index 333ae3e..952a1e9 100644
--- a/SDWebImage/UIImageView+WebCache.h
+++ b/SDWebImage/UIImageView+WebCache.h
@@ -134,9 +134,18 @@
  */
 - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder options:(SDWebImageOptions)options progress:(SDWebImageDownloaderProgressBlock)progressBlock completed:(SDWebImageCompletedBlock)completedBlock;
 
+/**
+ * Download an array of images and starts them in an animation loop
+ *
+ *@param arrayOfURLs An array of NSURL
+ */
+-(void)setAnimationImagesWithURLs:(NSArray *)arrayOfURLs;
+
 /**
  * Cancel the current download
  */
 - (void)cancelCurrentImageLoad;
 
+- (void)cancelCurrentArrayLoad;
+
 @end
diff --git a/SDWebImage/UIImageView+WebCache.m b/SDWebImage/UIImageView+WebCache.m
index 59e61a1..dd9bfcb 100644
--- a/SDWebImage/UIImageView+WebCache.m
+++ b/SDWebImage/UIImageView+WebCache.m
@@ -10,6 +10,7 @@
 #import "objc/runtime.h"
 
 static char operationKey;
+static char operationArrayKey;
 
 @implementation UIImageView (WebCache)
 
@@ -82,6 +83,46 @@ static char operationKey;
     }
 }
 
+-(void)setAnimationImagesWithURLs:(NSArray *)arrayOfURLs{
+	[self cancelCurrentArrayLoad];
+	__weak UIImageView *wself = self;
+	
+	NSMutableArray *operationsArray = [[NSMutableArray alloc] init];
+	
+	for(NSURL *logoImageURL in arrayOfURLs){
+		id<SDWebImageOperation> operation = [SDWebImageManager.sharedManager downloadWithURL:logoImageURL options:0 progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished){
+			if (!wself) return;
+			void (^block)(void) = ^
+			{
+				__strong UIImageView *sself = wself;
+				[sself stopAnimating];
+				if (!sself) return;
+				if (image)
+				{
+					NSMutableArray *currentImages = [[sself animationImages] mutableCopy];
+					if(!currentImages) currentImages = [[NSMutableArray alloc] init];
+					[currentImages addObject:image];
+					
+					sself.animationImages = currentImages;
+					[sself setNeedsLayout];
+				}
+				[sself startAnimating];
+			};
+			if ([NSThread isMainThread])
+			{
+				block();
+			}
+			else
+			{
+				dispatch_sync(dispatch_get_main_queue(), block);
+			}
+		}];
+		[operationsArray addObject:operation];
+	}
+	
+	objc_setAssociatedObject(self, &operationArrayKey, [NSArray arrayWithArray:operationsArray], OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+}
+
 - (void)cancelCurrentImageLoad
 {
     // Cancel in progress downloader from queue
@@ -93,4 +134,18 @@ static char operationKey;
     }
 }
 
+- (void)cancelCurrentArrayLoad
+{
+	// Cancel in progress downloader from queue
+	NSArray *operations = objc_getAssociatedObject(self, &operationArrayKey);
+	for(id<SDWebImageOperation> operation in operations){
+		if (operation)
+		{
+			[operation cancel];
+		}
+	}
+	objc_setAssociatedObject(self, &operationArrayKey, nil, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+	
+}
+
 @end