Migrates AFNetworking image download to SDWebImage in order to use the cache

Author: humberaquino

Diff for: BFRImageViewController/BFRImageContainerViewController.m

@@ -10,7 +10,8 @@
 
 #import <Photos/Photos.h>
 #import <DACircularProgress/DACircularProgressView.h>
-#import "AFNetworking.h"
+#import "SDWebImageManager.h"
+#import "SDWebImageDownloader.h"
 
 @interface BFRImageContainerViewController () <UIScrollViewDelegate, UIGestureRecognizerDelegate>
 @property (strong, nonatomic) UIScrollView *scrollView;
@@ -295,23 +296,27 @@ - (void)retrieveImageFromAsset {
 }
 - (void)retrieveImageFromURL {
     NSURL *url = (NSURL *)self.imgSrc;
-    
-    AFHTTPSessionManager *imgOperation = [[AFHTTPSessionManager alloc] init];
-    imgOperation.responseSerializer = [AFImageResponseSerializer serializer];
-    
-    [imgOperation GET:url.absoluteString parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
-        [self.progressView setProgress:downloadProgress.fractionCompleted];
-    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
-        self.imgLoaded = responseObject;
-        [self addImageToScrollView];
-        [self.progressView removeFromSuperview];
-    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
-        [self.progressView removeFromSuperview];
-        
-        NSLog(@"error %@", error);
-        
-        [self showError];
+
+    SDWebImageManager *manager = [SDWebImageManager sharedManager];
+    [manager downloadImageWithURL:url options:0 progress:^(NSInteger receivedSize, NSInteger expectedSize) {
+        float fractionCompleted = (float)receivedSize/(float)expectedSize;
+        dispatch_async(dispatch_get_main_queue(), ^{
+            [self.progressView setProgress:fractionCompleted];
+        });
+    } completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            if (error) {
+                [self.progressView removeFromSuperview];
+                NSLog(@"error %@", error);
+                [self showError];
+                return;
+            }
+            self.imgLoaded = image;
+            [self addImageToScrollView];
+            [self.progressView removeFromSuperview];
+        });
     }];
+   
 }
 
 - (void)showError {

Diff for: BFRImageViewer.podspec

@@ -10,5 +10,5 @@ Pod::Spec.new do |s|
     s.platform     = :ios, '8.0'
     s.requires_arc = true
     s.dependency 'DACircularProgress'
-    s.dependency 'AFNetworking'
+    s.dependency 'SDWebImage'
 end

Diff for: BFRImageViewerDemo/Podfile

@@ -6,7 +6,7 @@
 target 'BFRImageViewer' do
 
 pod 'DACircularProgress'
-pod 'AFNetworking', '~> 3.0'
+pod 'SDWebImage', '~> 3.7'
 
 end
 
@@ -17,4 +17,3 @@ end
 target 'BFRImageViewerUITests' do
 
 end
-

Diff for: BFRImageViewerDemo/Podfile.lock

@@ -1,27 +1,15 @@
 PODS:
-  - AFNetworking (3.0.0):
-    - AFNetworking/NSURLSession (= 3.0.0)
-    - AFNetworking/Reachability (= 3.0.0)
-    - AFNetworking/Security (= 3.0.0)
-    - AFNetworking/Serialization (= 3.0.0)
-    - AFNetworking/UIKit (= 3.0.0)
-  - AFNetworking/NSURLSession (3.0.0):
-    - AFNetworking/Reachability
-    - AFNetworking/Security
-    - AFNetworking/Serialization
-  - AFNetworking/Reachability (3.0.0)
-  - AFNetworking/Security (3.0.0)
-  - AFNetworking/Serialization (3.0.0)
-  - AFNetworking/UIKit (3.0.0):
-    - AFNetworking/NSURLSession
   - DACircularProgress (2.3.1)
+  - SDWebImage (3.7.3):
+    - SDWebImage/Core (= 3.7.3)
+  - SDWebImage/Core (3.7.3)
 
 DEPENDENCIES:
-  - AFNetworking (~> 3.0)
   - DACircularProgress
+  - SDWebImage (~> 3.7)
 
 SPEC CHECKSUMS:
-  AFNetworking: 932ff751f9d6fb1dad0b3af58b7e3ffba0a4e7fd
   DACircularProgress: 4dd437c0fc3da5161cb289e07ac449493d41db71
+  SDWebImage: 1d2b1a1efda1ade1b00b6f8498865f8ddedc8a84
 
 COCOAPODS: 0.39.0