diff --git a/.gitignore b/.gitignore
index c6cbe56..0f1d137 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,9 @@
 *.iml
 .gradle
 /local.properties
-/.idea/workspace.xml
-/.idea/libraries
+/.idea
 .DS_Store
 /build
 /captures
+.externalNativeBuild
+.cxx
diff --git a/app/build.gradle b/app/build.gradle
index 1f2386f..5d54cae 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,28 +1,49 @@
-apply plugin: 'com.android.application'
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    compileSdk 33
 
     defaultConfig {
-        applicationId "me.khrystal.circlerecyclerviewdemo"
-        minSdkVersion 13
-        targetSdkVersion 23
+        applicationId "com.example.myfirstapplication"
+        minSdk 29
+        targetSdk 33
         versionCode 1
         versionName "1.0"
     }
+
     buildTypes {
         release {
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+//    buildFeatures {
+//        viewBinding true
+//    }
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:23.4.0'
-    compile project(':library')
-    compile 'com.github.bumptech.glide:glide:3.6.1'
-    compile 'jp.wasabeef:glide-transformations:2.0.1'
-}
+
+    implementation project(':library')
+    implementation 'com.github.bumptech.glide:glide:4.11.0'
+    implementation 'jp.wasabeef:glide-transformations:4.3.0'
+    // If you want to use the GPU Filters
+    implementation 'jp.co.cyberagent.android:gpuimage:2.1.0'
+
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.1'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    implementation 'androidx.recyclerview:recyclerview:1.3.0'
+}
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f540afa..f490c0d 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -8,7 +8,8 @@
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppTheme" >
-        <activity android:name=".MainActivity" >
+        <activity android:name=".MainActivity"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MainActivity.java b/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MainActivity.java
index 203cdf0..ee2a948 100644
--- a/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MainActivity.java
+++ b/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MainActivity.java
@@ -2,10 +2,11 @@
 
 import android.graphics.Color;
 import android.os.Bundle;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentTransaction;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
+
 import android.view.Menu;
 import android.view.MenuItem;
 
@@ -18,7 +19,7 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-        mToolbar = (Toolbar) findViewById(R.id.toolbar);
+        mToolbar = findViewById(R.id.toolbar);
         mToolbar.setTitle("TYPE_CIRCLE");
         mToolbar.setTitleTextColor(Color.WHITE);
         setSupportActionBar(mToolbar);
diff --git a/app/src/main/java/me/khrystal/circlerecyclerviewdemo/ModeType.java b/app/src/main/java/me/khrystal/circlerecyclerviewdemo/ModeType.java
index ef8b4e8..1e88427 100644
--- a/app/src/main/java/me/khrystal/circlerecyclerviewdemo/ModeType.java
+++ b/app/src/main/java/me/khrystal/circlerecyclerviewdemo/ModeType.java
@@ -1,6 +1,6 @@
 package me.khrystal.circlerecyclerviewdemo;
 
-import android.support.annotation.IntDef;
+import androidx.annotation.IntDef;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MultiModeFragment.java b/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MultiModeFragment.java
index 6680dbb..8caa2b4 100644
--- a/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MultiModeFragment.java
+++ b/app/src/main/java/me/khrystal/circlerecyclerviewdemo/MultiModeFragment.java
@@ -1,9 +1,6 @@
 package me.khrystal.circlerecyclerviewdemo;
 
 import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -11,12 +8,20 @@
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.bumptech.glide.Glide;
+import com.bumptech.glide.request.RequestOptions;
 
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
+//import jp.wasabeef.glide.transformations.CropCircleTransformation;
+import jp.wasabeef.glide.transformations.BlurTransformation;
 import jp.wasabeef.glide.transformations.CropCircleTransformation;
 import me.khrystal.library.widget.CircleRecyclerView;
 import me.khrystal.library.widget.CircularHorizontalMode;
@@ -64,11 +69,11 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle sa
     }
 
     @Override
-    public void onViewCreated(View view, Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         int modeType = getArguments().getInt("mode_type");
-        mCircleRecyclerView = (CircleRecyclerView) view.findViewById(R.id.circle_rv);
+        mCircleRecyclerView = view.findViewById(R.id.circle_rv);
 
 //        find itemViewMode and layoutManager
         switch (modeType) {
@@ -139,8 +144,9 @@ public void onCenterItemClick(View v) {
 
     class A extends RecyclerView.Adapter<VH> {
 
+        @NonNull
         @Override
-        public VH onCreateViewHolder(ViewGroup parent, int viewType) {
+        public VH onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
             VH h = null;
             if (mCircleRecyclerView.getLayoutManager().canScrollHorizontally()) {
                 h = new VH(LayoutInflater.from(getContext())
@@ -167,9 +173,15 @@ else if (mItemViewMode instanceof CircularHorizontalBTTMode) {
         @Override
         public void onBindViewHolder(VH holder, int position) {
             holder.tv.setText("Number :" + (position % mImgList.size()));
-            Glide.with(getContext())
+
+//            Glide.with(requireContext())
+//                    .load(mImgList.get(position % mImgList.size()))
+//                    .apply(RequestOptions.bitmapTransform(new BlurTransformation()))
+//                    .into(holder.iv);
+
+            Glide.with(requireContext())
                     .load(mImgList.get(position % mImgList.size()))
-                    .bitmapTransform(new CropCircleTransformation(getContext()))
+                    .apply(RequestOptions.circleCropTransform())
                     .into(holder.iv);
 
         }
@@ -181,15 +193,15 @@ public int getItemCount() {
     }
 
 
-    class VH extends RecyclerView.ViewHolder {
+    static class VH extends RecyclerView.ViewHolder {
 
         TextView tv;
         ImageView iv;
 
         public VH(View itemView) {
             super(itemView);
-            tv = (TextView) itemView.findViewById(R.id.item_text);
-            iv = (ImageView) itemView.findViewById(R.id.item_img);
+            tv = itemView.findViewById(R.id.item_text);
+            iv = itemView.findViewById(R.id.item_img);
         }
     }
 }
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 5cc13bb..cc0f896 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -5,14 +5,14 @@
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <android.support.v7.widget.Toolbar
+    <androidx.appcompat.widget.Toolbar
         android:id="@+id/toolbar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="?attr/colorPrimary"
         android:minHeight="?attr/actionBarSize"
         app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
-        app:theme="@style/ActionBarThemeOverlay"></android.support.v7.widget.Toolbar>
+        app:theme="@style/ActionBarThemeOverlay"></androidx.appcompat.widget.Toolbar>
 
     <FrameLayout
         android:id="@+id/fragment_container"
diff --git a/app/src/main/res/layout/fragment.xml b/app/src/main/res/layout/fragment.xml
index c86c799..43a5d38 100644
--- a/app/src/main/res/layout/fragment.xml
+++ b/app/src/main/res/layout/fragment.xml
@@ -1,10 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
     android:layout_height="match_parent">
+
     <me.khrystal.library.widget.CircleRecyclerView
         android:id="@+id/circle_rv"
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
-    </me.khrystal.library.widget.CircleRecyclerView>
+        android:layout_height="match_parent" />
+
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_c_rtl_v.xml b/app/src/main/res/layout/item_c_rtl_v.xml
index 5d69b68..1595a22 100644
--- a/app/src/main/res/layout/item_c_rtl_v.xml
+++ b/app/src/main/res/layout/item_c_rtl_v.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
     android:layout_height="80dp">
     <ImageView
         android:id="@+id/item_img"
diff --git a/app/src/main/res/layout/item_c_v.xml b/app/src/main/res/layout/item_c_v.xml
index a9aace4..da71574 100644
--- a/app/src/main/res/layout/item_c_v.xml
+++ b/app/src/main/res/layout/item_c_v.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
     android:layout_height="80dp">
     <ImageView
         android:id="@+id/item_img"
diff --git a/app/src/main/res/layout/item_v.xml b/app/src/main/res/layout/item_v.xml
index 9988e12..821a893 100644
--- a/app/src/main/res/layout/item_v.xml
+++ b/app/src/main/res/layout/item_v.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
     android:layout_height="80dp">
     <ImageView
         android:id="@+id/item_img"
diff --git a/build.gradle b/build.gradle
index 05bf7e5..7cadbe8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,24 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
-
-buildscript {
-    repositories {
-        jcenter()
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.0'
-
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
-    }
-}
-
-allprojects {
-    repositories {
-        jcenter()
-        mavenCentral()
-    }
-}
-
-task clean(type: Delete) {
-    delete rootProject.buildDir
-}
+plugins {
+    id 'com.android.application' version '7.4.0' apply false
+    id 'com.android.library' version '7.4.0' apply false
+    id 'org.jetbrains.kotlin.android' version '1.7.21' apply false
+}
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 1d3591c..3c5031e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,18 +1,23 @@
 # Project-wide Gradle settings.
-
 # IDE (e.g. Android Studio) users:
 # Gradle settings configured through the IDE *will override*
 # any settings specified in this file.
-
 # For more details on how to configure your build environment visit
 # http://www.gradle.org/docs/current/userguide/build_environment.html
-
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
-# Default value: -Xmx10248m -XX:MaxPermSize=256m
-# org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
-
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true
\ No newline at end of file
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 05ef575..e708b1c 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 8111683..9a9659f 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Sep 22 12:15:02 CST 2016
+#Sun Jan 29 14:43:02 CST 2023
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+zipStoreBase=GRADLE_USER_HOME
diff --git a/library/build.gradle b/library/build.gradle
index 7c93a3e..c2c14f0 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -1,26 +1,38 @@
-apply plugin: 'com.android.library'
+plugins {
+    id 'com.android.library'
+}
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    compileSdk 33
 
     defaultConfig {
-        minSdkVersion 13
-        targetSdkVersion 23
+        minSdk 29
+        targetSdk 33
         versionCode 1
         versionName "1.0"
     }
+
     buildTypes {
         release {
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+//    buildFeatures {
+//        viewBinding true
+//    }
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:23.4.0'
-    compile 'com.android.support:recyclerview-v7:23.4.0'
 
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.1'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    implementation 'androidx.recyclerview:recyclerview:1.3.0'
 }
diff --git a/library/src/main/java/me/khrystal/library/widget/CircleRecyclerView.java b/library/src/main/java/me/khrystal/library/widget/CircleRecyclerView.java
index 679655c..6edc262 100644
--- a/library/src/main/java/me/khrystal/library/widget/CircleRecyclerView.java
+++ b/library/src/main/java/me/khrystal/library/widget/CircleRecyclerView.java
@@ -3,21 +3,19 @@
 import android.content.Context;
 import android.os.Handler;
 import android.os.Message;
-import android.support.annotation.Nullable;
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.util.AttributeSet;
-import android.util.Log;
-import android.util.SparseArray;
 import android.view.MotionEvent;
 import android.view.View;
 
+import androidx.annotation.Nullable;
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import java.lang.ref.WeakReference;
 
 import me.khrystal.library.R;
 
-
 /**
  * usage:
  * author: kHRYSTAL
@@ -62,8 +60,6 @@ public CircleRecyclerView(Context context, @Nullable AttributeSet attrs, int def
         setOverScrollMode(OVER_SCROLL_NEVER);
     }
 
-
-
     @Override
     protected void onLayout(boolean changed, int l, int t, int r, int b) {
         super.onLayout(changed, l, t, r, b);
@@ -77,7 +73,7 @@ protected void onLayout(boolean changed, int l, int t, int r, int b) {
 //            scrollToPosition(DEFAULT_SELECTION);
             mCurrentCenterChildView = findViewAtCenter();
             smoothScrollToView(mCurrentCenterChildView);
-        } else if (!mNeedLoop && mNeedCenterForce) {
+        } else if (mNeedCenterForce) {
             LinearLayoutManager layoutManager = (LinearLayoutManager) getLayoutManager();
             if (layoutManager.canScrollHorizontally())
                 setPadding(getWidth() / 2, 0, getWidth() / 2, 0);
@@ -96,8 +92,6 @@ else if (layoutManager.canScrollVertically())
             mCurrentCenterChildView.setOnClickListener(this);
     }
 
-
-
     @Override
     protected void onScrollChanged(int l, int t, int oldl, int oldt) {
         super.onScrollChanged(l, t, oldl, oldt);
@@ -225,7 +219,7 @@ public class CenterRunnable implements Runnable {
         private WeakReference<View> mView;
 
         public void setView(View v) {
-            mView = new WeakReference<View>(v);
+            mView = new WeakReference<>(v);
         }
 
         @Override
diff --git a/library/src/main/java/me/khrystal/library/widget/CircularHorizontalBTTMode.java b/library/src/main/java/me/khrystal/library/widget/CircularHorizontalBTTMode.java
index 88dd4d5..14458d5 100644
--- a/library/src/main/java/me/khrystal/library/widget/CircularHorizontalBTTMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/CircularHorizontalBTTMode.java
@@ -1,9 +1,10 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/library/src/main/java/me/khrystal/library/widget/CircularHorizontalMode.java b/library/src/main/java/me/khrystal/library/widget/CircularHorizontalMode.java
index 8cf6b8f..50b3a0b 100644
--- a/library/src/main/java/me/khrystal/library/widget/CircularHorizontalMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/CircularHorizontalMode.java
@@ -1,9 +1,10 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/library/src/main/java/me/khrystal/library/widget/CircularViewMode.java b/library/src/main/java/me/khrystal/library/widget/CircularViewMode.java
index 38cd8e0..6be2d1c 100644
--- a/library/src/main/java/me/khrystal/library/widget/CircularViewMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/CircularViewMode.java
@@ -1,10 +1,10 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
-import android.util.Log;
 import android.view.View;
 
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/library/src/main/java/me/khrystal/library/widget/CircularViewRTLMode.java b/library/src/main/java/me/khrystal/library/widget/CircularViewRTLMode.java
index 2e0424d..5627077 100644
--- a/library/src/main/java/me/khrystal/library/widget/CircularViewRTLMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/CircularViewRTLMode.java
@@ -1,9 +1,10 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/library/src/main/java/me/khrystal/library/widget/ItemViewMode.java b/library/src/main/java/me/khrystal/library/widget/ItemViewMode.java
index 3d773e6..d0e448d 100644
--- a/library/src/main/java/me/khrystal/library/widget/ItemViewMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/ItemViewMode.java
@@ -1,8 +1,9 @@
 package me.khrystal.library.widget;
 
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/library/src/main/java/me/khrystal/library/widget/RotateXScaleYViewMode.java b/library/src/main/java/me/khrystal/library/widget/RotateXScaleYViewMode.java
index 79be035..0a1b4b1 100644
--- a/library/src/main/java/me/khrystal/library/widget/RotateXScaleYViewMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/RotateXScaleYViewMode.java
@@ -1,10 +1,11 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/library/src/main/java/me/khrystal/library/widget/RotateYScaleXViewMode.java b/library/src/main/java/me/khrystal/library/widget/RotateYScaleXViewMode.java
index 76aaef9..71acc5b 100644
--- a/library/src/main/java/me/khrystal/library/widget/RotateYScaleXViewMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/RotateYScaleXViewMode.java
@@ -1,10 +1,11 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/library/src/main/java/me/khrystal/library/widget/ScaleXViewMode.java b/library/src/main/java/me/khrystal/library/widget/ScaleXViewMode.java
index 44a7ada..7b242b7 100644
--- a/library/src/main/java/me/khrystal/library/widget/ScaleXViewMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/ScaleXViewMode.java
@@ -1,9 +1,9 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
-import android.view.ViewGroup;
+
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
 
 import me.khrystal.library.R;
 
diff --git a/library/src/main/java/me/khrystal/library/widget/ScaleYViewMode.java b/library/src/main/java/me/khrystal/library/widget/ScaleYViewMode.java
index 55aaa56..e5d71dd 100644
--- a/library/src/main/java/me/khrystal/library/widget/ScaleYViewMode.java
+++ b/library/src/main/java/me/khrystal/library/widget/ScaleYViewMode.java
@@ -1,9 +1,10 @@
 package me.khrystal.library.widget;
 
-import android.support.v4.view.ViewCompat;
-import android.support.v7.widget.RecyclerView;
 import android.view.View;
 
+import androidx.core.view.ViewCompat;
+import androidx.recyclerview.widget.RecyclerView;
+
 /**
  * usage:
  * author: kHRYSTAL
diff --git a/settings.gradle b/settings.gradle
index 3306997..9f79bff 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1,16 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+rootProject.name = "CircleRecyclerView"
 include ':app', ':library'