diff --git a/.idea/dictionaries/liushilin.xml b/.idea/dictionaries/liushilin.xml
index 439f402..2fb2c69 100644
--- a/.idea/dictionaries/liushilin.xml
+++ b/.idea/dictionaries/liushilin.xml
@@ -1,6 +1,7 @@
 <component name="ProjectDictionaryState">
   <dictionary name="liushilin">
     <words>
+      <w>afdd</w>
       <w>nanchen</w>
     </words>
   </dictionary>
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/app/src/main/java/com/nanchen/screenrecorder/MainActivity.kt b/app/src/main/java/com/nanchen/screenrecorder/MainActivity.kt
index 9c3d42f..0855502 100644
--- a/app/src/main/java/com/nanchen/screenrecorder/MainActivity.kt
+++ b/app/src/main/java/com/nanchen/screenrecorder/MainActivity.kt
@@ -9,12 +9,12 @@ import android.os.Bundle
 import android.util.Log
 import android.widget.Toast
 import com.blankj.utilcode.util.PathUtils
-import com.nanchen.screenrecord.ScreenRecorder
+import com.nanchen.screenrecordhelper.ScreenRecordHelper
 import kotlinx.android.synthetic.main.activity_main.*
 
 class MainActivity : AppCompatActivity() {
 
-    private var screenRecorder: ScreenRecorder? = null
+    private var screenRecordHelper: ScreenRecordHelper? = null
     private val afdd: AssetFileDescriptor by lazy { assets.openFd("test.aac") }
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -23,8 +23,8 @@ class MainActivity : AppCompatActivity() {
 
         btnStart.setOnClickListener {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                if (screenRecorder == null) {
-                    screenRecorder = ScreenRecorder(this, object : ScreenRecorder.OnVideoRecordListener {
+                if (screenRecordHelper == null) {
+                    screenRecordHelper = ScreenRecordHelper(this, object : ScreenRecordHelper.OnVideoRecordListener {
                         override fun onBeforeRecord() {
                         }
 
@@ -42,9 +42,9 @@ class MainActivity : AppCompatActivity() {
 
                     }, PathUtils.getExternalStoragePath() + "/nanchen")
                 }
-                screenRecorder?.apply {
+                screenRecordHelper?.apply {
                     if (!isRecording) {
-                        screenRecorder?.startRecord()
+                        screenRecordHelper?.startRecord()
                     }
                 }
             } else {
@@ -54,7 +54,7 @@ class MainActivity : AppCompatActivity() {
 
         btnStop.setOnClickListener {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                screenRecorder?.apply {
+                screenRecordHelper?.apply {
                     if (isRecording) {
                         if (mediaPlayer != null) {
                             stopRecord(mediaPlayer!!.duration.toLong(), 15 * 1000, afdd)
@@ -98,13 +98,13 @@ class MainActivity : AppCompatActivity() {
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         super.onActivityResult(requestCode, resultCode, data)
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && data != null) {
-            screenRecorder?.onActivityResult(requestCode, resultCode, data)
+            screenRecordHelper?.onActivityResult(requestCode, resultCode, data)
         }
     }
 
     override fun onDestroy() {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            screenRecorder?.clearAll()
+            screenRecordHelper?.clearAll()
         }
         afdd.close()
         super.onDestroy()
diff --git a/screenrecord/build.gradle b/screenrecord/build.gradle
index 2b74958..b77141e 100644
--- a/screenrecord/build.gradle
+++ b/screenrecord/build.gradle
@@ -3,8 +3,6 @@ apply plugin: 'kotlin-android'
 android {
     compileSdkVersion 28
 
-
-
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 28
diff --git a/screenrecord/src/androidTest/java/com/nanchen/screenrecord/ExampleInstrumentedTest.java b/screenrecord/src/androidTest/java/com/nanchen/screenrecordhelper/ExampleInstrumentedTest.java
similarity index 94%
rename from screenrecord/src/androidTest/java/com/nanchen/screenrecord/ExampleInstrumentedTest.java
rename to screenrecord/src/androidTest/java/com/nanchen/screenrecordhelper/ExampleInstrumentedTest.java
index 8157c67..1246899 100644
--- a/screenrecord/src/androidTest/java/com/nanchen/screenrecord/ExampleInstrumentedTest.java
+++ b/screenrecord/src/androidTest/java/com/nanchen/screenrecordhelper/ExampleInstrumentedTest.java
@@ -1,4 +1,4 @@
-package com.nanchen.screenrecord;
+package com.nanchen.screenrecordhelper;
 
 import android.content.Context;
 import android.support.test.InstrumentationRegistry;
diff --git a/screenrecord/src/main/AndroidManifest.xml b/screenrecord/src/main/AndroidManifest.xml
index ff396d6..ad60ea5 100644
--- a/screenrecord/src/main/AndroidManifest.xml
+++ b/screenrecord/src/main/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.nanchen.screenrecord">
+    package="com.nanchen.screenrecordhelper">
 
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
diff --git a/screenrecord/src/main/java/com/nanchen/screenrecord/ScreenRecorder.kt b/screenrecord/src/main/java/com/nanchen/screenrecordhelper/ScreenRecordHelper.kt
similarity index 98%
rename from screenrecord/src/main/java/com/nanchen/screenrecord/ScreenRecorder.kt
rename to screenrecord/src/main/java/com/nanchen/screenrecordhelper/ScreenRecordHelper.kt
index f27c410..3ae62b2 100644
--- a/screenrecord/src/main/java/com/nanchen/screenrecord/ScreenRecorder.kt
+++ b/screenrecord/src/main/java/com/nanchen/screenrecordhelper/ScreenRecordHelper.kt
@@ -1,4 +1,4 @@
-package com.nanchen.screenrecord
+package com.nanchen.screenrecordhelper
 
 import android.app.Activity
 import android.content.Context
@@ -30,7 +30,7 @@ import java.nio.ByteBuffer
  * Date: 2019/6/21 15:19
  */
 @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
-class ScreenRecorder @JvmOverloads constructor(
+class ScreenRecordHelper @JvmOverloads constructor(
         private var activity: Activity,
         private val listener: OnVideoRecordListener?,
         private var savePath: String = Environment.getExternalStorageDirectory().absolutePath + File.separator
@@ -328,7 +328,7 @@ class ScreenRecorder @JvmOverloads constructor(
     companion object {
         private const val VIDEO_FRAME_RATE = 30
         private const val REQUEST_CODE = 1024
-        private const val TAG = "ScreenRecorder"
+        private const val TAG = "ScreenRecordHelper"
     }
 
     interface OnVideoRecordListener {
diff --git a/screenrecord/src/test/java/com/nanchen/screenrecord/ExampleUnitTest.java b/screenrecord/src/test/java/com/nanchen/screenrecordhelper/ExampleUnitTest.java
similarity index 89%
rename from screenrecord/src/test/java/com/nanchen/screenrecord/ExampleUnitTest.java
rename to screenrecord/src/test/java/com/nanchen/screenrecordhelper/ExampleUnitTest.java
index e6060fc..94dd000 100644
--- a/screenrecord/src/test/java/com/nanchen/screenrecord/ExampleUnitTest.java
+++ b/screenrecord/src/test/java/com/nanchen/screenrecordhelper/ExampleUnitTest.java
@@ -1,4 +1,4 @@
-package com.nanchen.screenrecord;
+package com.nanchen.screenrecordhelper;
 
 import org.junit.Test;