diff --git a/.DS_Store b/.DS_Store
index 35d1de8..67e2049 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/app/build.gradle b/app/build.gradle
index e107f47..df0637c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -101,8 +101,11 @@ dependencies {
     implementation 'com.github.bumptech.glide:okhttp3-integration:4.12.0'
     implementation("com.squareup.okhttp3:okhttp:4.8.1")
     implementation ('com.qiniu:happy-dns:0.2.17')
-    implementation (name:'qndroid-whiteboard-1.0.4-beta',ext:"aar")
-   // implementation project(":qiniuwhiteboard")
+    implementation (name:'qndroid-whiteboard-1.0.5-beta',ext:"aar")
+  //  implementation project(":qiniuwhiteboard")
     implementation ('com.aliyun.dpa:oss-android-sdk:2.9.6')
     implementation 'cn.yipianfengye.android:zxing-library:2.2'
+    implementation 'com.tencent.bugly:crashreport:3.3.92' //其中latest.release指代最新Bugly SDK版本号，也可以指定明确的版本号，例如2.1.9
+    implementation 'com.tencent.bugly:nativecrashreport:3.9.1' //其中latest.release指代最新Bugly NDK版本号，也可以指定明确的版本号，例如3.0
+
 }
\ No newline at end of file
diff --git a/app/libs/qndroid-whiteboard-1.0.4-beta.aar b/app/libs/qndroid-whiteboard-1.0.5-beta.aar
similarity index 60%
rename from app/libs/qndroid-whiteboard-1.0.4-beta.aar
rename to app/libs/qndroid-whiteboard-1.0.5-beta.aar
index 8dc3241..0fc18a4 100644
Binary files a/app/libs/qndroid-whiteboard-1.0.4-beta.aar and b/app/libs/qndroid-whiteboard-1.0.5-beta.aar differ
diff --git a/app/src/main/java/com/qiniu/whiteboard/example/MyApplication.kt b/app/src/main/java/com/qiniu/whiteboard/example/MyApplication.kt
index 906dc13..755f6bf 100644
--- a/app/src/main/java/com/qiniu/whiteboard/example/MyApplication.kt
+++ b/app/src/main/java/com/qiniu/whiteboard/example/MyApplication.kt
@@ -3,6 +3,7 @@
 package com.qiniu.whiteboard.example
 import android.app.Application
 import com.qiniu.droid.whiteboard.QNWhiteBoard
+import com.tencent.bugly.crashreport.CrashReport
 import com.uuzuche.lib_zxing.activity.ZXingLibrary
 
 class MyApplication : Application(){
@@ -14,5 +15,6 @@ class MyApplication : Application(){
         ZXingLibrary.initDisplayOpinion(applicationContext)
         QNWhiteBoard.init(this, true)
         QNWhiteBoard.setDefaultInputMode(NormalPenStyle().inputConfig)
+        CrashReport.initCrashReport(this, "be697c06e2", true);
     }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_room.xml b/app/src/main/res/layout/activity_room.xml
index 3f5e7d8..eb028df 100644
--- a/app/src/main/res/layout/activity_room.xml
+++ b/app/src/main/res/layout/activity_room.xml
@@ -191,7 +191,8 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             app:layout_constraintBottom_toBottomOf="parent"
-            app:layout_constraintEnd_toEndOf="parent">
+            app:layout_constraintStart_toStartOf="parent"
+            >
 
             <LinearLayout
                 android:layout_width="wrap_content"