diff --git a/brvahKtx/.gitignore b/brvahKtx/.gitignore
deleted file mode 100644
index 796b96d1c..000000000
--- a/brvahKtx/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/build
diff --git a/brvahKtx/build.gradle b/brvahKtx/build.gradle
deleted file mode 100644
index 2d28ec7db..000000000
--- a/brvahKtx/build.gradle
+++ /dev/null
@@ -1,33 +0,0 @@
-apply plugin: 'com.android.library'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-android-extensions'
-
-android {
-    compileSdkVersion 28
-
-    defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 28
-        versionCode 1
-        versionName "1.0"
-
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-
-    }
-
-    buildTypes {
-        release {
-            consumerProguardFiles 'proguard-rules.pro'
-        }
-    }
-
-}
-
-dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
-
-    compileOnly 'com.android.support:recyclerview-v7:28.0.0'
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0-RC'
-    implementation project(path: ':library')
-}
diff --git a/brvahKtx/proguard-rules.pro b/brvahKtx/proguard-rules.pro
deleted file mode 100644
index 97a05a301..000000000
--- a/brvahKtx/proguard-rules.pro
+++ /dev/null
@@ -1,31 +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
-# ServiceLoader support
--keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
--keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
--keepnames class kotlinx.coroutines.android.AndroidExceptionPreHandler {}
--keepnames class kotlinx.coroutines.android.AndroidDispatcherFactory {}
-
-# Most of volatile fields are updated with AFU and should not be mangled
--keepclassmembernames class kotlinx.** {
-    volatile <fields>;
-}
\ No newline at end of file
diff --git a/brvahKtx/src/main/AndroidManifest.xml b/brvahKtx/src/main/AndroidManifest.xml
deleted file mode 100644
index ede31adea..000000000
--- a/brvahKtx/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.chinakingo.brvahktx" />
diff --git a/brvahKtx/src/main/java/com/chinakingo/brvahktx/AdapterKtx.kt b/brvahKtx/src/main/java/com/chinakingo/brvahktx/AdapterKtx.kt
deleted file mode 100644
index ee812b6a7..000000000
--- a/brvahKtx/src/main/java/com/chinakingo/brvahktx/AdapterKtx.kt
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.chinakingo.brvahktx
-
-import android.support.v7.util.DiffUtil
-import com.chad.library.adapter.base.BaseQuickAdapter
-import com.chad.library.adapter.base.BaseViewHolder
-import com.chad.library.adapter.base.diff.BaseQuickDiffCallback
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
-
-/**
- * author : limuyang
- * e-mail : limuyang2@163.com
- * date   : 2019/07/28
- * desc   : About the kotlin extension of the adapter
- */
-
-/**
- * this is kotlin Expansion, quick use async diff
- * @receiver BaseQuickAdapter<T, K>
- * @param baseQuickDiffCallback BaseQuickDiffCallback<T>
- * @param detectMoves Boolean
- */
-suspend inline fun <T, K : BaseViewHolder> BaseQuickAdapter<T, K>.setNewDiffDataAsync(baseQuickDiffCallback: BaseQuickDiffCallback<T>, detectMoves: Boolean) {
-    baseQuickDiffCallback.oldList = this.data
-    val diffResult = withContext(Dispatchers.IO) {
-        DiffUtil.calculateDiff(baseQuickDiffCallback, detectMoves)
-    }
-    this.setNewDiffData(diffResult, baseQuickDiffCallback.newList)
-}
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
index f0319ddf8..33069973b 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1 @@
-include ':app', ':library', ':brvahKtx'
+include ':app', ':library'