From e585affc2c2dbe459071c0d4ae8f923d285f3a3a Mon Sep 17 00:00:00 2001
From: rain_home <liu044100@gmail.com>
Date: Thu, 10 Sep 2015 22:21:11 +0900
Subject: [PATCH] minor refine

minor refine
---
 Example/TouchID/AppDelegate.m          | 11 ++++++++---
 SmileAuth/Classes/SmileAuthenticator.h |  3 ++-
 SmileAuth/Classes/SmileAuthenticator.m |  1 +
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/Example/TouchID/AppDelegate.m b/Example/TouchID/AppDelegate.m
index 02341a4..79e8fba 100644
--- a/Example/TouchID/AppDelegate.m
+++ b/Example/TouchID/AppDelegate.m
@@ -65,9 +65,14 @@ -(void)showCoverImageView{
 }
 
 -(void)hideCoverImageView{
-    [UIView animateWithDuration:0.2 animations:^{
-        _coverImageView.alpha = 0.0;
-    }];
+    if (_coverImageView) {
+        [UIView animateWithDuration:0.2 animations:^{
+            _coverImageView.alpha = 0.0;
+        } completion:^(BOOL finished) {
+            [_coverImageView removeFromSuperview];
+            _coverImageView = nil;
+        }];
+    }
 }
 
 - (void)applicationWillResignActive:(UIApplication *)application {
diff --git a/SmileAuth/Classes/SmileAuthenticator.h b/SmileAuth/Classes/SmileAuthenticator.h
index d41c7c6..5d03261 100644
--- a/SmileAuth/Classes/SmileAuthenticator.h
+++ b/SmileAuth/Classes/SmileAuthenticator.h
@@ -40,7 +40,8 @@ typedef NS_ENUM(int, SecurityType) {
 @property (nonatomic, copy) NSString * localizedReason;
 @property (nonatomic, strong) SmileKeychainWrapper *keychainWrapper;
 @property (nonatomic, assign) SecurityType securityType;
-@property (nonatomic, assign) BOOL isShowingAuthVC;
+/*!@brief This property show whether the Auth view is showing or not.*/
+@property (nonatomic, readonly) BOOL isShowingAuthVC;
 @property (nonatomic, strong) UIViewController *rootVC;
 @property (nonatomic, weak) id <SmileAuthenticatorDelegate> delegate;
 /*!@brief <b>For customization</b>, use this property to customize tint color. The default color is pink.*/
diff --git a/SmileAuth/Classes/SmileAuthenticator.m b/SmileAuth/Classes/SmileAuthenticator.m
index cf66fa6..1093382 100644
--- a/SmileAuth/Classes/SmileAuthenticator.m
+++ b/SmileAuth/Classes/SmileAuthenticator.m
@@ -20,6 +20,7 @@ @interface SmileAuthenticator()
 
 @property (nonatomic, assign) LAPolicy policy;
 @property (nonatomic, strong) LAContext * context;
+@property (nonatomic, readwrite) BOOL isShowingAuthVC;
 
 @end