diff --git a/build.gradle b/build.gradle
index 3c517a0..e8b84e8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,8 +9,8 @@ buildscript {
         min_sdk_version = 16
         target_sdk_version = 27
         constraint_version = '1.1.0'
-        version_code = 221
-        version_name = '2.2.1'
+        version_code = 224
+        version_name = '2.2.4'
 
         /*support*/
         android_support = '28.0.0'
diff --git a/zxinglibrary/build.gradle b/zxinglibrary/build.gradle
index 1259f6d..ac48fcb 100644
--- a/zxinglibrary/build.gradle
+++ b/zxinglibrary/build.gradle
@@ -24,6 +24,6 @@ dependencies {
     compileOnly "com.android.support:design:$android_support"
     compileOnly "com.android.support:support-v4:$android_support"
     compileOnly "com.android.support:support-vector-drawable:$android_support"
-   // implementation 'com.google.zxing:core:3.3.2'
+    // implementation 'com.google.zxing:core:3.3.2'
 
 }
diff --git a/zxinglibrary/proguard-rules.pro b/zxinglibrary/proguard-rules.pro
index f1b4245..e69de29 100644
--- a/zxinglibrary/proguard-rules.pro
+++ b/zxinglibrary/proguard-rules.pro
@@ -1,21 +0,0 @@
-# Add project specific ProGuard rules here.
-# You can control the set of applied configuration files using the
-# proguardFiles setting in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile
diff --git a/zxinglibrary/src/main/AndroidManifest.xml b/zxinglibrary/src/main/AndroidManifest.xml
index 4354213..a7834a6 100644
--- a/zxinglibrary/src/main/AndroidManifest.xml
+++ b/zxinglibrary/src/main/AndroidManifest.xml
@@ -20,6 +20,7 @@
             android:name=".android.CaptureActivity"
             android:configChanges="orientation|screenSize"
             android:screenOrientation="portrait"
+            android:theme="@style/Theme.AppCompat.NoActionBar"
             android:windowSoftInputMode="adjustPan|stateHidden" />
     </application>
 </manifest>
\ No newline at end of file
diff --git a/zxinglibrary/src/main/java/com/yzq/zxinglibrary/android/CaptureActivity.java b/zxinglibrary/src/main/java/com/yzq/zxinglibrary/android/CaptureActivity.java
index 1b8ff55..508a6a7 100644
--- a/zxinglibrary/src/main/java/com/yzq/zxinglibrary/android/CaptureActivity.java
+++ b/zxinglibrary/src/main/java/com/yzq/zxinglibrary/android/CaptureActivity.java
@@ -274,6 +274,8 @@ private void displayFrameworkBugMessageAndExit() {
 
     @Override
     protected void onPause() {
+
+        Log.i("CaptureActivity","onPause");
         if (handler != null) {
             handler.quitSynchronously();
             handler = null;
diff --git a/zxinglibrary/src/main/res/layout/activity_capture.xml b/zxinglibrary/src/main/res/layout/activity_capture.xml
index 25f5a7a..0485bf2 100644
--- a/zxinglibrary/src/main/res/layout/activity_capture.xml
+++ b/zxinglibrary/src/main/res/layout/activity_capture.xml
@@ -23,6 +23,7 @@
         android:orientation="vertical">
 
         <RelativeLayout
+            android:id="@+id/headerLayout"
             android:layout_width="match_parent"
             android:layout_height="48dp"
             android:layout_gravity="top"