diff --git a/app/build.gradle b/app/build.gradle
index 7493e68..200db45 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.3"
 
     defaultConfig {
         applicationId "com.dinuscxj.recyclerrefreshlayout"
-        minSdkVersion 11
-        targetSdkVersion 25
+        minSdkVersion 14
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -21,9 +21,12 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:25.3.1'
-    compile 'com.android.support:design:25.3.1'
-    compile 'com.android.support:recyclerview-v7:25.3.1'
-    compile 'com.android.support:cardview-v7:25.3.1'
+    compile 'androidx.appcompat:appcompat:1.0.0'
+    compile 'androidx.cardview:cardview:1.0.0'
+    compile 'androidx.fragment:fragment:1.0.0'
+    compile 'androidx.coordinatorlayout:coordinatorlayout:1.0.0'
+    compile 'androidx.recyclerview:recyclerview:1.0.0'
+    compile 'androidx.viewpager:viewpager:1.0.0'
+    compile 'com.google.android.material:material:1.0.0'
     compile project(':recyclerrefreshlayout')
 }
diff --git a/app/src/main/java/com/dinuscxj/example/adapter/BaseRecyclerListAdapter.java b/app/src/main/java/com/dinuscxj/example/adapter/BaseRecyclerListAdapter.java
index e7dd227..2160416 100644
--- a/app/src/main/java/com/dinuscxj/example/adapter/BaseRecyclerListAdapter.java
+++ b/app/src/main/java/com/dinuscxj/example/adapter/BaseRecyclerListAdapter.java
@@ -1,8 +1,8 @@
 package com.dinuscxj.example.adapter;
 
-import android.support.annotation.NonNull;
-import android.support.annotation.UiThread;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.NonNull;
+import androidx.annotation.UiThread;
+import androidx.recyclerview.widget.RecyclerView;
 
 import java.util.ArrayList;
 import java.util.Arrays;
diff --git a/app/src/main/java/com/dinuscxj/example/adapter/HeaderViewRecyclerAdapter.java b/app/src/main/java/com/dinuscxj/example/adapter/HeaderViewRecyclerAdapter.java
index 3fce4f0..17fd7bd 100644
--- a/app/src/main/java/com/dinuscxj/example/adapter/HeaderViewRecyclerAdapter.java
+++ b/app/src/main/java/com/dinuscxj/example/adapter/HeaderViewRecyclerAdapter.java
@@ -1,8 +1,8 @@
 package com.dinuscxj.example.adapter;
 
-import android.support.v7.widget.GridLayoutManager;
-import android.support.v7.widget.RecyclerView;
-import android.support.v7.widget.StaggeredGridLayoutManager;
+import androidx.recyclerview.widget.GridLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.StaggeredGridLayoutManager;
 import android.view.View;
 import android.view.ViewGroup;
 
diff --git a/app/src/main/java/com/dinuscxj/example/adapter/RecyclerListAdapter.java b/app/src/main/java/com/dinuscxj/example/adapter/RecyclerListAdapter.java
index 4b6b1ad..63b63f0 100644
--- a/app/src/main/java/com/dinuscxj/example/adapter/RecyclerListAdapter.java
+++ b/app/src/main/java/com/dinuscxj/example/adapter/RecyclerListAdapter.java
@@ -1,7 +1,7 @@
 package com.dinuscxj.example.adapter;
 
-import android.support.annotation.NonNull;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
 import android.view.View;
 import android.view.ViewGroup;
 
diff --git a/app/src/main/java/com/dinuscxj/example/demo/MaterialRefreshView.java b/app/src/main/java/com/dinuscxj/example/demo/MaterialRefreshView.java
index 9b4e988..264dda0 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/MaterialRefreshView.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/MaterialRefreshView.java
@@ -10,7 +10,7 @@
 import android.graphics.Shader;
 import android.graphics.drawable.ShapeDrawable;
 import android.graphics.drawable.shapes.OvalShape;
-import android.support.v4.view.ViewCompat;
+import androidx.core.view.ViewCompat;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.animation.LinearInterpolator;
@@ -95,7 +95,7 @@ private void initBackground(float radius) {
         } else {
             OvalShape oval = new OvalShadow(mShadowRadius, diameter);
             circle = new ShapeDrawable(oval);
-            ViewCompat.setLayerType(this, ViewCompat.LAYER_TYPE_SOFTWARE, circle.getPaint());
+            ViewCompat.setLayerType(this, View.LAYER_TYPE_SOFTWARE, circle.getPaint());
             circle.getPaint().setShadowLayer(mShadowRadius, shadowXOffset, shadowYOffset,
                     KEY_SHADOW_COLOR);
             final int padding = mShadowRadius;
diff --git a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectFloatFragment.java b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectFloatFragment.java
index e351332..fcd6ac2 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectFloatFragment.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectFloatFragment.java
@@ -4,10 +4,11 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
diff --git a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectNormalFragment.java b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectNormalFragment.java
index 6a03568..28a79d8 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectNormalFragment.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectNormalFragment.java
@@ -5,10 +5,11 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import android.util.DisplayMetrics;
 import android.view.LayoutInflater;
 import android.view.Menu;
diff --git a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectPinnedFragment.java b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectPinnedFragment.java
index 99aba3f..d43f7d7 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectPinnedFragment.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectPinnedFragment.java
@@ -4,10 +4,11 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
diff --git a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectRefreshActivity.java b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectRefreshActivity.java
index fa185d1..a01526a 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectRefreshActivity.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectRefreshActivity.java
@@ -1,7 +1,7 @@
 package com.dinuscxj.example.demo;
 
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 
 import com.dinuscxj.example.R;
 
diff --git a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectTabPagerFragment.java b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectTabPagerFragment.java
index 701b5b4..e08169b 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/OpenProjectTabPagerFragment.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/OpenProjectTabPagerFragment.java
@@ -1,8 +1,8 @@
 package com.dinuscxj.example.demo;
 
 import android.content.Context;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
 
 import com.dinuscxj.example.R;
 
diff --git a/app/src/main/java/com/dinuscxj/example/demo/RecyclerFragment.java b/app/src/main/java/com/dinuscxj/example/demo/RecyclerFragment.java
index b75efbe..01c5fa1 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/RecyclerFragment.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/RecyclerFragment.java
@@ -1,11 +1,12 @@
 package com.dinuscxj.example.demo;
 
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
diff --git a/app/src/main/java/com/dinuscxj/example/demo/RefreshViewEg.java b/app/src/main/java/com/dinuscxj/example/demo/RefreshViewEg.java
index d741b38..01c5815 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/RefreshViewEg.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/RefreshViewEg.java
@@ -7,7 +7,7 @@
 import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 import android.view.animation.RotateAnimation;
-import android.widget.ImageView;
+import androidx.appcompat.widget.AppCompatImageView;
 
 import com.dinuscxj.example.R;
 import com.dinuscxj.refresh.IRefreshStatus;
@@ -15,7 +15,7 @@
 /**
  * the default implementation class of the interface IRefreshStatus, and the class should always be rewritten
  */
-public class RefreshViewEg extends android.support.v7.widget.AppCompatImageView implements IRefreshStatus {
+public class RefreshViewEg extends AppCompatImageView implements IRefreshStatus {
     private static final int ANIMATION_DURATION = 150;
     private static final Interpolator ANIMATION_INTERPOLATOR = new DecelerateInterpolator();
 
diff --git a/app/src/main/java/com/dinuscxj/example/demo/TabPagerFragment.java b/app/src/main/java/com/dinuscxj/example/demo/TabPagerFragment.java
index 98c8589..582640d 100644
--- a/app/src/main/java/com/dinuscxj/example/demo/TabPagerFragment.java
+++ b/app/src/main/java/com/dinuscxj/example/demo/TabPagerFragment.java
@@ -4,19 +4,20 @@
 import android.os.Parcel;
 import android.os.ParcelFormatException;
 import android.os.Parcelable;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.design.widget.TabLayout;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentStatePagerAdapter;
-import android.support.v4.view.ViewPager;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentStatePagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
 import com.dinuscxj.example.R;
+import com.google.android.material.tabs.TabLayout;
 
 import java.util.ArrayList;
 
diff --git a/app/src/main/java/com/dinuscxj/example/tips/DefaultTipsHelper.java b/app/src/main/java/com/dinuscxj/example/tips/DefaultTipsHelper.java
index 00a087c..34b4d07 100644
--- a/app/src/main/java/com/dinuscxj/example/tips/DefaultTipsHelper.java
+++ b/app/src/main/java/com/dinuscxj/example/tips/DefaultTipsHelper.java
@@ -1,7 +1,7 @@
 package com.dinuscxj.example.tips;
 
 import android.graphics.drawable.AnimationDrawable;
-import android.support.v7.widget.RecyclerView;
+import androidx.recyclerview.widget.RecyclerView;
 import android.text.TextUtils;
 import android.view.View;
 import android.widget.ImageView;
diff --git a/app/src/main/res/layout/base_refresh_recycler_list_layout.xml b/app/src/main/res/layout/base_refresh_recycler_list_layout.xml
index 30a2d1f..9ca8664 100644
--- a/app/src/main/res/layout/base_refresh_recycler_list_layout.xml
+++ b/app/src/main/res/layout/base_refresh_recycler_list_layout.xml
@@ -4,7 +4,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <android.support.v7.widget.RecyclerView
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/recycler_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
diff --git a/app/src/main/res/layout/base_tabpager_fragment.xml b/app/src/main/res/layout/base_tabpager_fragment.xml
index c8b809e..0777944 100644
--- a/app/src/main/res/layout/base_tabpager_fragment.xml
+++ b/app/src/main/res/layout/base_tabpager_fragment.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/app_bar_layout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         app:elevation="0dp"
         android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
@@ -19,17 +19,17 @@
             app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
             app:layout_scrollFlags="scroll|enterAlways" />
 
-        <android.support.design.widget.TabLayout
+        <com.google.android.material.tabs.TabLayout
             android:id="@+id/tab_layout"
             android:layout_width="match_parent"
             android:layout_height="wrap_content" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
-    <android.support.v4.view.ViewPager
+    <androidx.viewpager.widget.ViewPager
         android:id="@+id/view_pager"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         app:layout_behavior="@string/appbar_scrolling_view_behavior" />
 
-</android.support.design.widget.CoordinatorLayout>
\ No newline at end of file
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/simple_list_item.xml b/app/src/main/res/layout/simple_list_item.xml
index c455a8d..d720a75 100644
--- a/app/src/main/res/layout/simple_list_item.xml
+++ b/app/src/main/res/layout/simple_list_item.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_marginLeft="8dp"
@@ -43,4 +43,4 @@
             android:textColor="@android:color/white"
             android:textSize="18sp" />
     </LinearLayout>
-</android.support.v7.widget.CardView>
\ No newline at end of file
+</androidx.cardview.widget.CardView>
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index deb40b1..1e95225 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,10 +2,13 @@
 
 buildscript {
     repositories {
-        jcenter()
+        mavenCentral()
+        maven {
+            url 'https://maven.google.com/'
+        }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.1'
+        classpath 'com.android.tools.build:gradle:3.0.0'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
@@ -13,6 +16,8 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter()
+        maven {
+            url 'https://maven.google.com/'
+        }
     }
 }
diff --git a/gradle.properties b/gradle.properties
index 1d3591c..2a8e7cc 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -15,4 +15,6 @@
 # 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
+android.enableJetifier=false
+android.useAndroidX=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 55ba234..411b9a1 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
\ No newline at end of file
diff --git a/recyclerrefreshlayout/build.gradle b/recyclerrefreshlayout/build.gradle
index 2929a37..9ff2401 100644
--- a/recyclerrefreshlayout/build.gradle
+++ b/recyclerrefreshlayout/build.gradle
@@ -1,12 +1,12 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.3"
 
     defaultConfig {
-        minSdkVersion 11
-        targetSdkVersion 25
+        minSdkVersion 14
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -21,7 +21,7 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:25.3.1'
+    compile 'androidx.appcompat:appcompat:1.0.0'
 }
 
 
diff --git a/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RecyclerRefreshLayout.java b/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RecyclerRefreshLayout.java
index 0e17592..cffc880 100644
--- a/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RecyclerRefreshLayout.java
+++ b/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RecyclerRefreshLayout.java
@@ -1,16 +1,15 @@
 package com.dinuscxj.refresh;
 
 import android.content.Context;
-import android.support.annotation.NonNull;
-import android.support.v4.view.MotionEventCompat;
-import android.support.v4.view.NestedScrollingChild;
-import android.support.v4.view.NestedScrollingChildHelper;
-import android.support.v4.view.NestedScrollingParent;
-import android.support.v4.view.NestedScrollingParentHelper;
-import android.support.v4.view.ViewCompat;
+import androidx.annotation.NonNull;
+import androidx.core.view.MotionEventCompat;
+import androidx.core.view.NestedScrollingChild;
+import androidx.core.view.NestedScrollingChildHelper;
+import androidx.core.view.NestedScrollingParent;
+import androidx.core.view.NestedScrollingParentHelper;
+import androidx.core.view.ViewCompat;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
-import android.util.Log;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewConfiguration;
@@ -22,7 +21,7 @@
 import android.widget.AbsListView;
 
 /**
- * NOTE: the class based on the {@link android.support.v4.widget.SwipeRefreshLayout} source code
+ * NOTE: the class based on the {@link androidx.core.widget.SwipeRefreshLayout} source code
  * <p>
  * The RecyclerRefreshLayout should be used whenever the user can refresh the
  * contents of a view via a vertical swipe gesture. The activity that
diff --git a/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RefreshView.java b/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RefreshView.java
index e1349d4..5e5f30e 100644
--- a/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RefreshView.java
+++ b/recyclerrefreshlayout/src/main/java/com/dinuscxj/refresh/RefreshView.java
@@ -6,7 +6,6 @@
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.RectF;
-import android.support.v4.view.animation.FastOutSlowInInterpolator;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.animation.LinearInterpolator;