MTLxDC · ShannonChenCHN · Dec 27, 2015
diff --git a/DCWebPicScrollView.xcodeproj/project.pbxproj b/DCWebPicScrollView.xcodeproj/project.pbxproj
@@ -7,24 +7,27 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
-		843F8E921C14238E0055C517 /* place.png in Resources */ = {isa = PBXBuildFile; fileRef = 843F8E911C14238E0055C517 /* place.png */; settings = {ASSET_TAGS = (); }; };
+		58B652961C2F8FFE000FB1C4 /* NSTimer+Block.m in Sources */ = {isa = PBXBuildFile; fileRef = 58B652951C2F8FFE000FB1C4 /* NSTimer+Block.m */; };
+		843F8E921C14238E0055C517 /* place.png in Resources */ = {isa = PBXBuildFile; fileRef = 843F8E911C14238E0055C517 /* place.png */; };
 		846448021C11B94E0026C67E /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 846448011C11B94E0026C67E /* main.m */; };
 		846448101C11B94E0026C67E /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 8464480E1C11B94E0026C67E /* LaunchScreen.storyboard */; };
-		847D97FC1C269CE500ACABCD /* Untitled.gif in Resources */ = {isa = PBXBuildFile; fileRef = 847D97FB1C269CE500ACABCD /* Untitled.gif */; settings = {ASSET_TAGS = (); }; };
-		84AB633F1C156158004321E4 /* DCWebImageManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AB633E1C156158004321E4 /* DCWebImageManager.m */; settings = {ASSET_TAGS = (); }; };
-		84AC26801C129BA700F8C007 /* DCPicScrollView.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AC267B1C129BA700F8C007 /* DCPicScrollView.m */; settings = {ASSET_TAGS = (); }; };
-		84AC268F1C129BB600F8C007 /* 1.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26841C129BB600F8C007 /* 1.jpg */; settings = {ASSET_TAGS = (); }; };
-		84AC26901C129BB600F8C007 /* 2.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26851C129BB600F8C007 /* 2.jpg */; settings = {ASSET_TAGS = (); }; };
-		84AC26911C129BB600F8C007 /* 3.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26861C129BB600F8C007 /* 3.jpg */; settings = {ASSET_TAGS = (); }; };
-		84AC26921C129BB600F8C007 /* 4.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26871C129BB600F8C007 /* 4.jpg */; settings = {ASSET_TAGS = (); }; };
-		84AC26931C129BB600F8C007 /* 5.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26881C129BB600F8C007 /* 5.jpg */; settings = {ASSET_TAGS = (); }; };
-		84AC26941C129BB600F8C007 /* 6.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26891C129BB600F8C007 /* 6.jpg */; settings = {ASSET_TAGS = (); }; };
-		84AC26951C129BB600F8C007 /* 7.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC268A1C129BB600F8C007 /* 7.jpg */; settings = {ASSET_TAGS = (); }; };
-		84AC26961C129BB600F8C007 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AC268C1C129BB600F8C007 /* AppDelegate.m */; settings = {ASSET_TAGS = (); }; };
-		84AC26971C129BB600F8C007 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AC268E1C129BB600F8C007 /* ViewController.m */; settings = {ASSET_TAGS = (); }; };
+		847D97FC1C269CE500ACABCD /* Untitled.gif in Resources */ = {isa = PBXBuildFile; fileRef = 847D97FB1C269CE500ACABCD /* Untitled.gif */; };
+		84AB633F1C156158004321E4 /* DCWebImageManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AB633E1C156158004321E4 /* DCWebImageManager.m */; };
+		84AC26801C129BA700F8C007 /* DCPicScrollView.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AC267B1C129BA700F8C007 /* DCPicScrollView.m */; };
+		84AC268F1C129BB600F8C007 /* 1.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26841C129BB600F8C007 /* 1.jpg */; };
+		84AC26901C129BB600F8C007 /* 2.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26851C129BB600F8C007 /* 2.jpg */; };
+		84AC26911C129BB600F8C007 /* 3.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26861C129BB600F8C007 /* 3.jpg */; };
+		84AC26921C129BB600F8C007 /* 4.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26871C129BB600F8C007 /* 4.jpg */; };
+		84AC26931C129BB600F8C007 /* 5.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26881C129BB600F8C007 /* 5.jpg */; };
+		84AC26941C129BB600F8C007 /* 6.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC26891C129BB600F8C007 /* 6.jpg */; };
+		84AC26951C129BB600F8C007 /* 7.jpg in Resources */ = {isa = PBXBuildFile; fileRef = 84AC268A1C129BB600F8C007 /* 7.jpg */; };
+		84AC26961C129BB600F8C007 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AC268C1C129BB600F8C007 /* AppDelegate.m */; };
+		84AC26971C129BB600F8C007 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 84AC268E1C129BB600F8C007 /* ViewController.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		58B652941C2F8FFE000FB1C4 /* NSTimer+Block.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = "NSTimer+Block.h"; sourceTree = "<group>"; };
+		58B652951C2F8FFE000FB1C4 /* NSTimer+Block.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = "NSTimer+Block.m"; sourceTree = "<group>"; };
 		843F8E911C14238E0055C517 /* place.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = place.png; sourceTree = "<group>"; };
 		846447FD1C11B94E0026C67E /* DCWebPicScrollView.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = DCWebPicScrollView.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		846448011C11B94E0026C67E /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
@@ -59,6 +62,15 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		58B652931C2F8FBE000FB1C4 /* NSTimerBlock */ = {
+			isa = PBXGroup;
+			children = (
+				58B652941C2F8FFE000FB1C4 /* NSTimer+Block.h */,
+				58B652951C2F8FFE000FB1C4 /* NSTimer+Block.m */,
+			);
+			path = NSTimerBlock;
+			sourceTree = "<group>";
+		};
 		846447F41C11B94E0026C67E = {
 			isa = PBXGroup;
 			children = (
@@ -79,6 +91,7 @@
 			isa = PBXGroup;
 			children = (
 				8464480E1C11B94E0026C67E /* LaunchScreen.storyboard */,
+				58B652931C2F8FBE000FB1C4 /* NSTimerBlock */,
 				84AC26831C129BB600F8C007 /* demo */,
 				84AC26791C129BA700F8C007 /* DCPicscrollView */,
 				846448111C11B94E0026C67E /* Info.plist */,
@@ -208,6 +221,7 @@
 				846448021C11B94E0026C67E /* main.m in Sources */,
 				84AC26801C129BA700F8C007 /* DCPicScrollView.m in Sources */,
 				84AB633F1C156158004321E4 /* DCWebImageManager.m in Sources */,
+				58B652961C2F8FFE000FB1C4 /* NSTimer+Block.m in Sources */,
 				84AC26961C129BB600F8C007 /* AppDelegate.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

diff --git a/DCWebPicScrollView/DCPicscrollView/DCPicScrollView.m b/DCWebPicScrollView/DCPicscrollView/DCPicScrollView.m
@@ -12,6 +12,7 @@
 
 #import "DCPicScrollView.h"
 #import "DCWebImageManager.h"
+#import "NSTimer+Block.h"
 
 @interface DCPicScrollView () <UIScrollViewDelegate>
 
@@ -328,8 +329,12 @@ - (void)setAutoScrollDelay:(NSTimeInterval)AutoScrollDelay {
 
 - (void)setUpTimer {
     if (_AutoScrollDelay < 0.5) return;
-
-    _timer = [NSTimer timerWithTimeInterval:_AutoScrollDelay target:self selector:@selector(scorll) userInfo:nil repeats:YES];
+    __weak typeof (self) weakSelf = self;
+    _timer = [NSTimer block_timerWithTimeInterval:_AutoScrollDelay block:^{
+        __weak typeof (weakSelf) strongSelf = weakSelf;
+        [strongSelf scorll];
+    } repeats:YES];
+//    _timer = [NSTimer timerWithTimeInterval:_AutoScrollDelay target:self selector:@selector(scorll) userInfo:nil repeats:YES];
     [[NSRunLoop currentRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];
 }
 

diff --git a/DCWebPicScrollView/NSTimerBlock/NSTimer+Block.h b/DCWebPicScrollView/NSTimerBlock/NSTimer+Block.h
@@ -0,0 +1,19 @@
+//
+//  NSTimer+Block.h
+//  DCWebPicScrollView
+//
+//  Created by ShannonChen on 15/12/27.
+//  Copyright © 2015年 name. All rights reserved.
+//  参考《Effective Objective-C 2.0》 第52条
+
+#import <Foundation/Foundation.h>
+
+@interface NSTimer (Block)
+
+/// 需要手动加入runloop中
++ (instancetype)block_timerWithTimeInterval:(NSTimeInterval)interval block:(void(^)())block repeats:(BOOL)repeats;
+
+/// 自动加入runloop中
++ (instancetype)block_scheduledTimerWithTimeInterval:(NSTimeInterval)interval block:(void(^)())block repeats:(BOOL)repeats;
+
+@end
diff --git a/DCWebPicScrollView/NSTimerBlock/NSTimer+Block.m b/DCWebPicScrollView/NSTimerBlock/NSTimer+Block.m
@@ -0,0 +1,29 @@
+//
+//  NSTimer+Block.m
+//  DCWebPicScrollView
+//
+//  Created by ShannonChen on 15/12/27.
+//  Copyright © 2015年 name. All rights reserved.
+//
+
+#import "NSTimer+Block.h"
+
+@implementation NSTimer (Block)
+
++ (instancetype)block_timerWithTimeInterval:(NSTimeInterval)interval block:(void (^)())block repeats:(BOOL)repeats {
+    return [self timerWithTimeInterval:interval target:self selector:@selector(block_blockInvoke:) userInfo:[block copy] repeats:repeats];
+}
+
++ (instancetype)block_scheduledTimerWithTimeInterval:(NSTimeInterval)interval block:(void (^)())block repeats:(BOOL)repeats {
+    return [self scheduledTimerWithTimeInterval:interval target:self selector:@selector(block_blockInvoke:) userInfo:[block copy] repeats:repeats];
+}
+
++ (void)block_blockInvoke:(NSTimer *)timer {
+    if (!timer.isValid) return;
+    void (^block)() = timer.userInfo;
+    if (block) {
+        block();
+    }
+}
+
+@end