diff --git a/.swift-version b/.swift-version
new file mode 100644
index 0000000..bb576db
--- /dev/null
+++ b/.swift-version
@@ -0,0 +1 @@
+2.3
diff --git a/WXSTransition.podspec b/WXSTransition.podspec
index 581e3cf..c21e82a 100644
--- a/WXSTransition.podspec
+++ b/WXSTransition.podspec
@@ -1,8 +1,8 @@
 Pod::Spec.new do |s|
   s.name         = 'WXSTransition'
   s.summary      = 'A library for transition animations between view controlles.'
-  s.version      = '1.1.0'
-  s.license      = { :type => 'MIT', :file => 'LICENSE' }
+  s.version      = '1.1.1'
+  s.license      = "MIT"
   s.authors      = { 'alanwangmodify' => 'alanwangmodify@126.com' }
   s.homepage     = 'https://github.com/alanwangmodify/WXSTransition'
 
@@ -11,7 +11,7 @@ Pod::Spec.new do |s|
   s.source       = { :git => 'https://github.com/alanwangmodify/WXSTransition.git', :tag => s.version.to_s }
   
   s.requires_arc = true
-  s.source_files = 'WXSTransition/*.{h,m}'
-  s.public_header_files = 'WXSTransition/*.{h}'
+  s.source_files = 'WXSTransition/WXSTransition/*.{h,m}'
+
  
 end
diff --git a/WXSTransition/WXSTransition/WXSTransitionManager+BrickAnimation.m b/WXSTransition/WXSTransition/WXSTransitionManager+BrickAnimation.m
index 723f923..4a46977 100644
--- a/WXSTransition/WXSTransition/WXSTransitionManager+BrickAnimation.m
+++ b/WXSTransition/WXSTransition/WXSTransitionManager+BrickAnimation.m
@@ -141,7 +141,6 @@ - (void)brickOpenBackWithType:(WXSTransitionAnimationType)type andTransitionCont
     }];
     
     
-    __weak UIViewController *weakFromVC = fromVC;
     __weak UIViewController *weakToVC = toVC;
     
     self.willEndInteractiveBlock = ^(BOOL sucess) {
@@ -292,7 +291,6 @@ - (void)brickCloseBackWithType:(WXSTransitionAnimationType)type andTransitionCon
     }];
     
     
-    __weak UIViewController *weakFromVC = fromVC;
     __weak UIViewController *weakToVC = toVC;
     
     self.willEndInteractiveBlock = ^(BOOL sucess) {
diff --git a/WXSTransition/WXSTransition/WXSTransitionManager+TypeTool.h b/WXSTransition/WXSTransition/WXSTransitionManager+TypeTool.h
index 1b7aa71..f9af5b0 100644
--- a/WXSTransition/WXSTransition/WXSTransitionManager+TypeTool.h
+++ b/WXSTransition/WXSTransition/WXSTransitionManager+TypeTool.h
@@ -8,7 +8,7 @@
 
 #import "WXSTransitionManager.h"
 
-@interface WXSTransitionManager (TypeTool)
+@interface WXSTransitionManager (TypeTool)<CAAnimationDelegate>
 -(void)backAnimationTypeFromAnimationType:(WXSTransitionAnimationType)type;
 -(CATransition *)getSysTransitionWithType:(WXSTransitionAnimationType )type;
 @end