From 093193c67bfa2409af93e618a48e3208d63106a5 Mon Sep 17 00:00:00 2001
From: ibireme <ibireme@gmail.com>
Date: Sun, 6 Aug 2017 22:57:49 +0800
Subject: [PATCH] Fix Xcode warnings

---
 YYWebImage/Image/YYAnimatedImageView.m | 5 ++---
 YYWebImage/Image/YYImage.m             | 4 ++++
 YYWebImage/Image/YYImageCoder.h        | 2 +-
 YYWebImage/YYWebImageOperation.m       | 2 +-
 4 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/YYWebImage/Image/YYAnimatedImageView.m b/YYWebImage/Image/YYAnimatedImageView.m
index 5f2bcb4..07ee652 100644
--- a/YYWebImage/Image/YYAnimatedImageView.m
+++ b/YYWebImage/Image/YYAnimatedImageView.m
@@ -124,7 +124,6 @@ @interface YYAnimatedImageView() {
     @package
     UIImage <YYAnimatedImage> *_curAnimatedImage;
     
-    dispatch_once_t _onceToken;
     dispatch_semaphore_t _lock; ///< lock for _buffer
     NSOperationQueue *_requestQueue; ///< image request queue, serial
     
@@ -231,7 +230,7 @@ - (instancetype)initWithImage:(UIImage *)image highlightedImage:(UIImage *)highl
 
 // init the animated params.
 - (void)resetAnimated {
-    dispatch_once(&_onceToken, ^{
+    if (!_link) {
         _lock = dispatch_semaphore_create(1);
         _buffer = [NSMutableDictionary new];
         _requestQueue = [[NSOperationQueue alloc] init];
@@ -244,7 +243,7 @@ - (void)resetAnimated {
         
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didReceiveMemoryWarning:) name:UIApplicationDidReceiveMemoryWarningNotification object:nil];
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didEnterBackground:) name:UIApplicationDidEnterBackgroundNotification object:nil];
-    });
+    }
     
     [_requestQueue cancelAllOperations];
     LOCK(
diff --git a/YYWebImage/Image/YYImage.m b/YYWebImage/Image/YYImage.m
index aaea939..9fa7efc 100644
--- a/YYWebImage/Image/YYImage.m
+++ b/YYWebImage/Image/YYImage.m
@@ -212,6 +212,10 @@ - (void)encodeWithCoder:(NSCoder *)aCoder {
     }
 }
 
++ (BOOL)supportsSecureCoding {
+    return  YES;
+}
+
 #pragma mark - protocol YYAnimatedImage
 
 - (NSUInteger)animatedImageFrameCount {
diff --git a/YYWebImage/Image/YYImageCoder.h b/YYWebImage/Image/YYImageCoder.h
index 293a45b..31299e7 100644
--- a/YYWebImage/Image/YYImageCoder.h
+++ b/YYWebImage/Image/YYImageCoder.h
@@ -264,7 +264,7 @@ typedef NS_ENUM(NSUInteger, YYImageBlendOperation) {
 
 /**
  Add an image from a file path to encoder.
- @param path     Image file path.
+ @param path    Image file path.
  @param duration Image duration for animation. Pass 0 to ignore this parameter.
  */
 - (void)addImageWithFile:(NSString *)path duration:(NSTimeInterval)duration;
diff --git a/YYWebImage/YYWebImageOperation.m b/YYWebImage/YYWebImageOperation.m
index b490ecb..30ac1eb 100644
--- a/YYWebImage/YYWebImageOperation.m
+++ b/YYWebImage/YYWebImageOperation.m
@@ -368,7 +368,7 @@ - (void)_startRequest:(id)object {
             NSArray *keys = @[NSURLFileSizeKey];
             NSDictionary *attr = [_request.URL resourceValuesForKeys:keys error:nil];
             NSNumber *fileSize = attr[NSURLFileSizeKey];
-            _expectedSize = fileSize ? fileSize.unsignedIntegerValue : -1;
+            _expectedSize = (fileSize != nil) ? fileSize.unsignedIntegerValue : -1;
         }
         
         // request image from web