diff --git a/README.md b/README.md
index e2b32a3..b084fda 100644
--- a/README.md
+++ b/README.md
@@ -3,14 +3,14 @@
 ![Image](app/src/main/ic_launcher-web.png)
 
 [![Download](https://img.shields.io/badge/download-App-blue.svg)](https://raw.githubusercontent.com/jenly1314/ZXingLite/master/app/release/app-release.apk)
-[![JCenter](https://img.shields.io/badge/JCenter-1.1.8-46C018.svg)](https://bintray.com/beta/#/jenly/maven/zxing-lite)
+[![JCenter](https://img.shields.io/badge/JCenter-1.1.9-46C018.svg)](https://bintray.com/beta/#/jenly/maven/zxing-lite)
 [![JitPack](https://jitpack.io/v/jenly1314/ZXingLite.svg)](https://jitpack.io/#jenly1314/ZXingLite)
 [![CI](https://travis-ci.org/jenly1314/ZXingLite.svg?branch=master)](https://travis-ci.org/jenly1314/ZXingLite)
 [![CircleCI](https://circleci.com/gh/jenly1314/ZXingLite.svg?style=svg)](https://circleci.com/gh/jenly1314/ZXingLite)
 [![API](https://img.shields.io/badge/API-16%2B-blue.svg?style=flat)](https://android-arsenal.com/api?level=16)
 [![License](https://img.shields.io/badge/license-Apche%202.0-blue.svg)](http://www.apache.org/licenses/LICENSE-2.0)
 [![Blog](https://img.shields.io/badge/blog-Jenly-9933CC.svg)](https://jenly1314.github.io/)
-[![QQGroup](https://img.shields.io/badge/QQGroup-20867961-blue.svg)](http://shang.qq.com/wpa/qunwpa?idkey=8fcc6a2f88552ea44b1.1.882c94fd124f7bb3ec227e2a400dbbfaad3dc2f5ad)
+[![QQGroup](https://img.shields.io/badge/QQGroup-20867961-blue.svg)](http://shang.qq.com/wpa/qunwpa?idkey=8fcc6a2f88552ea44b1.1.982c94fd124f7bb3ec227e2a400dbbfaad3dc2f5ad)
 
 ZXingLite for Android 是ZXing的精简版，基于ZXing库优化扫码和生成二维码/条形码功能，扫码界面完全支持自定义，也可一行代码使用默认实现的扫码功能。总之你想要的都在这里。
 >简单如斯，你不试试？ Come on~
@@ -57,21 +57,21 @@ ZXingLite for Android 是ZXing的精简版，基于ZXing库优化扫码和生成
 <dependency>
   <groupId>com.king.zxing</groupId>
   <artifactId>zxing-lite</artifactId>
-  <version>1.1.8</version>
+  <version>1.1.9</version>
   <type>pom</type>
 </dependency>
 ```
 ### Gradle:
 ```gradle
 //AndroidX 版本
-implementation 'com.king.zxing:zxing-lite:1.1.8-androidx'
+implementation 'com.king.zxing:zxing-lite:1.1.9-androidx'
 
 //Android 版本
-implementation 'com.king.zxing:zxing-lite:1.1.8'
+implementation 'com.king.zxing:zxing-lite:1.1.9'
 ```
 ### Lvy:
 ```lvy
-<dependency org='com.king.zxing' name='zxing-lite' rev='1.1.8'>
+<dependency org='com.king.zxing' name='zxing-lite' rev='1.1.9'>
   <artifact name='$AID' ext='pom'></artifact>
 </dependency>
 ```
@@ -172,6 +172,9 @@ api 'com.google.zxing:core:3.3.3'
 
 ## 版本记录
 
+#### v1.1.9：2020-4-28
+* 修复1.1.8版本优化细节时，不小心改出个Bug(fix #86) 
+
 #### v1.1.8：2020-4-27
 *  统一日志管理
 *  优化细节
@@ -255,7 +258,7 @@ api 'com.google.zxing:core:3.3.3'
 
    Github: <a title="Github开源项目" href="https://github.com/jenly1314" target="_blank">jenly1314</a>
 
-   加入QQ群: <a title="点击加入QQ群" href="http://shang.qq.com/wpa/qunwpa?idkey=8fcc6a2f88552ea44b1.1.882c94fd124f7bb3ec227e2a400dbbfaad3dc2f5ad" target="_blank">20867961</a>
+   加入QQ群: <a title="点击加入QQ群" href="http://shang.qq.com/wpa/qunwpa?idkey=8fcc6a2f88552ea44b1.1.982c94fd124f7bb3ec227e2a400dbbfaad3dc2f5ad" target="_blank">20867961</a>
    <div>
        <img src="https://jenly1314.github.io/image/jenly666.png">
        <img src="https://jenly1314.github.io/image/qqgourp.png">
diff --git a/app/release/app-release.apk b/app/release/app-release.apk
index 3d317b5..3b4f010 100644
Binary files a/app/release/app-release.apk and b/app/release/app-release.apk differ
diff --git a/app/release/output.json b/app/release/output.json
index 4f2ee69..f4ee255 100644
--- a/app/release/output.json
+++ b/app/release/output.json
@@ -1 +1 @@
-[{"outputType":{"type":"APK"},"apkInfo":{"type":"MAIN","splits":[],"versionCode":23,"versionName":"1.1.8","enabled":true,"outputFile":"app-release.apk","fullName":"release","baseName":"release"},"path":"app-release.apk","properties":{}}]
\ No newline at end of file
+[{"outputType":{"type":"APK"},"apkInfo":{"type":"MAIN","splits":[],"versionCode":25,"versionName":"1.1.9","enabled":true,"outputFile":"app-release.apk","fullName":"release","baseName":"release"},"path":"app-release.apk","properties":{}}]
\ No newline at end of file
diff --git a/lib/src/main/java/com/king/zxing/CaptureHelper.java b/lib/src/main/java/com/king/zxing/CaptureHelper.java
index c9ff2bf..d98d18a 100644
--- a/lib/src/main/java/com/king/zxing/CaptureHelper.java
+++ b/lib/src/main/java/com/king/zxing/CaptureHelper.java
@@ -237,6 +237,7 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
     public void onPause(){
         if (captureHandler != null) {
             captureHandler.quitSynchronously();
+            captureHandler = null;
         }
         inactivityTimer.onPause();
         ambientLightManager.stop();
@@ -520,7 +521,7 @@ public class CaptureHelper implements CaptureLifecycle,CaptureTouchEvent,Capture
             return;
         }
 
-        if(isPlayBeep){//如果播放音效，则稍微延迟一点，给予播放音效时间
+        if(isPlayBeep && captureHandler != null){//如果播放音效，则稍微延迟一点，给予播放音效时间
             captureHandler.postDelayed(() -> {
                 //如果设置了回调，并且onCallback返回为true，则表示拦截
                 if(onCaptureCallback!=null && onCaptureCallback.onResultCallback(text)){
diff --git a/versions.gradle b/versions.gradle
index fca3274..85f7b66 100644
--- a/versions.gradle
+++ b/versions.gradle
@@ -1,7 +1,7 @@
 //App 
 def app_version = [:]
-app_version.versionCode = 23    //androidx 24
-app_version.versionName = "1.1.8"
+app_version.versionCode = 25    //androidx 26
+app_version.versionName = "1.1.9"
 ext.app_version = app_version
 
 //build version