diff --git a/app/build.gradle b/app/build.gradle
index 00631571..b1cee977 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,11 +22,11 @@ android {
 }
 
 dependencies {
-    compile 'com.alibaba:fastjson:1.1.55.android'
-    compile project(':library:WheelPicker')
-    compile project(':library:FilePicker')
-    compile project(':library:ColorPicker')
-    compile project(':library:MultiplePicker')
+    implementation 'com.alibaba:fastjson:1.1.55.android'
+    implementation project(':library:WheelPicker')
+    implementation project(':library:FilePicker')
+    implementation project(':library:ColorPicker')
+    implementation project(':library:MultiplePicker')
 //    compile files('libs/AndroidPicker-1.5.6.jar')
 //    compile('cn.qqtheme.framework:WheelPicker:latest.release') {
 //        exclude group: 'com.android.support'
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index f522ddca..e29cf991 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -46,8 +46,5 @@
     *;
 }
 
--dontwarn android.support.**
--keep class android.support.v4.** { *; }
-
 #不混淆地址选择器的实体类，以便fastjson能正常解析
 -keep class cn.qqtheme.framework.entity.** { *;}
diff --git a/app/src/main/java/cn/qqtheme/androidpicker/AddressInitTask.java b/app/src/main/java/cn/qqtheme/androidpicker/AddressInitTask.java
index c6a92ec7..aeb6d54c 100644
--- a/app/src/main/java/cn/qqtheme/androidpicker/AddressInitTask.java
+++ b/app/src/main/java/cn/qqtheme/androidpicker/AddressInitTask.java
@@ -3,12 +3,12 @@
 import android.app.Activity;
 import android.app.ProgressDialog;
 import android.os.AsyncTask;
-import android.support.annotation.WorkerThread;
 
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.annotation.WorkerThread;
 import cn.qqtheme.framework.entity.City;
 import cn.qqtheme.framework.entity.County;
 import cn.qqtheme.framework.entity.Province;
diff --git a/app/src/main/java/cn/qqtheme/androidpicker/BaseActivity.java b/app/src/main/java/cn/qqtheme/androidpicker/BaseActivity.java
index 550bf5b1..127c92ab 100644
--- a/app/src/main/java/cn/qqtheme/androidpicker/BaseActivity.java
+++ b/app/src/main/java/cn/qqtheme/androidpicker/BaseActivity.java
@@ -9,11 +9,6 @@
 import android.os.Build;
 import android.os.Bundle;
 import android.os.PersistableBundle;
-import android.support.annotation.CallSuper;
-import android.support.annotation.IdRes;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.v4.app.FragmentActivity;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -24,6 +19,11 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.annotation.CallSuper;
+import androidx.annotation.IdRes;
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.fragment.app.FragmentActivity;
 import cn.qqtheme.framework.util.LogUtils;
 
 /**
diff --git a/app/src/main/java/cn/qqtheme/androidpicker/CustomHeaderAndFooterPicker.java b/app/src/main/java/cn/qqtheme/androidpicker/CustomHeaderAndFooterPicker.java
index 19ccaebf..10513cf7 100644
--- a/app/src/main/java/cn/qqtheme/androidpicker/CustomHeaderAndFooterPicker.java
+++ b/app/src/main/java/cn/qqtheme/androidpicker/CustomHeaderAndFooterPicker.java
@@ -4,13 +4,13 @@
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.app.Activity;
-import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.animation.AccelerateInterpolator;
 import android.widget.Button;
 import android.widget.TextView;
 
+import androidx.annotation.Nullable;
 import cn.qqtheme.framework.picker.OptionPicker;
 import cn.qqtheme.framework.widget.WheelView;
 
diff --git a/app/src/main/java/cn/qqtheme/androidpicker/MainActivity.java b/app/src/main/java/cn/qqtheme/androidpicker/MainActivity.java
index 3ae3569b..d5d89328 100644
--- a/app/src/main/java/cn/qqtheme/androidpicker/MainActivity.java
+++ b/app/src/main/java/cn/qqtheme/androidpicker/MainActivity.java
@@ -3,13 +3,13 @@
 import android.content.Intent;
 import android.graphics.Color;
 import android.net.Uri;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
 import android.view.Gravity;
 import android.view.View;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import com.alibaba.fastjson.JSON;
 
 import java.util.ArrayList;
diff --git a/app/src/main/java/cn/qqtheme/androidpicker/StatusBarUtil.java b/app/src/main/java/cn/qqtheme/androidpicker/StatusBarUtil.java
index f84350a7..44c1f230 100644
--- a/app/src/main/java/cn/qqtheme/androidpicker/StatusBarUtil.java
+++ b/app/src/main/java/cn/qqtheme/androidpicker/StatusBarUtil.java
@@ -6,9 +6,6 @@
 import android.content.Context;
 import android.graphics.Color;
 import android.os.Build;
-import android.support.annotation.ColorInt;
-import android.support.annotation.IdRes;
-import android.support.v4.widget.DrawerLayout;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
@@ -17,6 +14,9 @@
 
 import java.lang.reflect.Field;
 
+import androidx.annotation.ColorInt;
+import androidx.annotation.IdRes;
+import androidx.drawerlayout.widget.DrawerLayout;
 import cn.qqtheme.framework.util.LogUtils;
 
 /**
diff --git a/build.gradle b/build.gradle
index d9161387..b125521c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,9 +7,10 @@ buildscript {
             url 'https://dl.google.com/dl/android/maven2/'
             name 'Google'
         }
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:4.0.0'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.3'
     }
 }
@@ -95,8 +96,8 @@ subprojects {
             }
 
             dependencies {
-                compile "com.android.support:support-v4:${ANDROID_SUPPORT_VERSION}"
-                compile "com.android.support:support-annotations:${ANDROID_SUPPORT_VERSION}"
+                implementation "androidx.legacy:legacy-support-v4:1.0.0"
+                implementation "androidx.annotation:annotation:1.2.0-alpha01"
             }
         }
 
diff --git a/gradle.properties b/gradle.properties
index 20a4e242..e8e39acd 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,19 +9,19 @@ org.gradle.daemon=true
 org.gradle.configureondemand=true
 
 #项目路径含中文需加上此句
-com.android.build.gradle.overridePathCheck=true
+android.overridePathCheck=true
 
 #支持NDK
 #android.useDeprecatedNdk=true
 
 #下面定义一些常量供gradle脚本使用
-VERSION_NAME=1.5.6
-VERSION_CODE=156
-COMPILE_SDK_VERSION=25
+VERSION_NAME=2.0.0
+VERSION_CODE=200
+COMPILE_SDK_VERSION=28
 MIN_SDK_VERSION=14
 #安卓6.0开始(API23+)，需要动态申请权限
-TARGET_SDK_VERSION=22
-BUILD_TOOL_VERSION=25.0.1
+TARGET_SDK_VERSION=28
+BUILD_TOOL_VERSION=28.0.3
 ANDROID_SUPPORT_VERSION=25.0.1
 GROUP=cn.qqtheme.framework
 SITE_URL=http://qqtheme.cn
@@ -29,4 +29,8 @@ GIT_URL=https://github.com/gzu-liyujiang/AndroidPicker.git
 ISSUE_URL=https://github.com/gzu-liyujiang/AndroidPicker/issues
 DEVELOPER_ID=liyujiang-gzu
 DEVELOPER_NAME=liyujiang
-DEVELOPER_EMAIL=liyujiang_tk@yeah.net
\ No newline at end of file
+DEVELOPER_EMAIL=liyujiang_tk@yeah.net
+
+#androidx
+android.useAndroidX=true
+android.enableJetifier=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 91c9dac8..404db3df 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,7 +1,6 @@
-#Sat Jun 24 17:00:52 CST 2017
+#Thu Oct 15 09:40:40 CST 2020
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
-#distributionUrl=file\:/F:/android/sdk/gradle-3.3-all.zip
+zipStoreBase=GRADLE_USER_HOME
diff --git a/library/ColorPicker/build.gradle b/library/ColorPicker/build.gradle
index 0a6219a8..1721fa5b 100644
--- a/library/ColorPicker/build.gradle
+++ b/library/ColorPicker/build.gradle
@@ -7,7 +7,7 @@ ext {
 }
 
 dependencies {
-    compile project(":library:Common")
+    api project(":library:Common")
 }
 
 android {
diff --git a/library/ColorPicker/src/main/java/cn/qqtheme/framework/picker/ColorPicker.java b/library/ColorPicker/src/main/java/cn/qqtheme/framework/picker/ColorPicker.java
index 2b21e295..b407afbc 100644
--- a/library/ColorPicker/src/main/java/cn/qqtheme/framework/picker/ColorPicker.java
+++ b/library/ColorPicker/src/main/java/cn/qqtheme/framework/picker/ColorPicker.java
@@ -3,9 +3,6 @@
 import android.app.Activity;
 import android.graphics.Color;
 import android.graphics.drawable.Drawable;
-import android.support.annotation.ColorInt;
-import android.support.annotation.IdRes;
-import android.support.annotation.NonNull;
 import android.view.Gravity;
 import android.view.View;
 import android.widget.LinearLayout;
@@ -13,6 +10,9 @@
 
 import java.util.Locale;
 
+import androidx.annotation.ColorInt;
+import androidx.annotation.IdRes;
+import androidx.annotation.NonNull;
 import cn.qqtheme.framework.icons.ColorPickerIcon;
 import cn.qqtheme.framework.popup.ConfirmPopup;
 import cn.qqtheme.framework.util.ConvertUtils;
diff --git a/library/ColorPicker/src/main/java/cn/qqtheme/framework/widget/StrokeTextView.java b/library/ColorPicker/src/main/java/cn/qqtheme/framework/widget/StrokeTextView.java
index 6cadf401..fcae1cb1 100644
--- a/library/ColorPicker/src/main/java/cn/qqtheme/framework/widget/StrokeTextView.java
+++ b/library/ColorPicker/src/main/java/cn/qqtheme/framework/widget/StrokeTextView.java
@@ -5,13 +5,13 @@
 import android.graphics.Canvas;
 import android.graphics.Color;
 import android.graphics.Paint;
-import android.support.annotation.ColorInt;
 import android.text.TextPaint;
 import android.util.AttributeSet;
 import android.widget.TextView;
 
 import java.lang.reflect.Field;
 
+import androidx.annotation.ColorInt;
 import cn.qqtheme.framework.util.ConvertUtils;
 
 /**
diff --git a/library/Common/src/main/java/cn/qqtheme/framework/popup/BasicPopup.java b/library/Common/src/main/java/cn/qqtheme/framework/popup/BasicPopup.java
index 8ec0a608..98665613 100644
--- a/library/Common/src/main/java/cn/qqtheme/framework/popup/BasicPopup.java
+++ b/library/Common/src/main/java/cn/qqtheme/framework/popup/BasicPopup.java
@@ -6,8 +6,6 @@
 import android.content.DialogInterface;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
-import android.support.annotation.CallSuper;
-import android.support.annotation.StyleRes;
 import android.util.DisplayMetrics;
 import android.view.Gravity;
 import android.view.KeyEvent;
@@ -16,6 +14,7 @@
 import android.view.Window;
 import android.widget.FrameLayout;
 
+import androidx.annotation.StyleRes;
 import cn.qqtheme.framework.util.LogUtils;
 import cn.qqtheme.framework.util.ScreenUtils;
 
diff --git a/library/Common/src/main/java/cn/qqtheme/framework/popup/ConfirmPopup.java b/library/Common/src/main/java/cn/qqtheme/framework/popup/ConfirmPopup.java
index a104aeb9..d8d73cd3 100644
--- a/library/Common/src/main/java/cn/qqtheme/framework/popup/ConfirmPopup.java
+++ b/library/Common/src/main/java/cn/qqtheme/framework/popup/ConfirmPopup.java
@@ -2,11 +2,6 @@
 
 import android.app.Activity;
 import android.graphics.Color;
-import android.support.annotation.ColorInt;
-import android.support.annotation.IntRange;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.annotation.StringRes;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.View;
@@ -15,6 +10,7 @@
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import androidx.annotation.*;
 import cn.qqtheme.framework.util.ConvertUtils;
 
 /**
diff --git a/library/Common/src/main/java/cn/qqtheme/framework/util/CompatUtils.java b/library/Common/src/main/java/cn/qqtheme/framework/util/CompatUtils.java
index 828e375e..c173939d 100644
--- a/library/Common/src/main/java/cn/qqtheme/framework/util/CompatUtils.java
+++ b/library/Common/src/main/java/cn/qqtheme/framework/util/CompatUtils.java
@@ -4,8 +4,8 @@
 import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
-import android.support.annotation.DrawableRes;
 import android.view.View;
+import androidx.annotation.DrawableRes;
 
 /**
  * 兼容旧版&新版
diff --git a/library/Common/src/main/java/cn/qqtheme/framework/util/ConvertUtils.java b/library/Common/src/main/java/cn/qqtheme/framework/util/ConvertUtils.java
index b0005ebd..62ebc835 100644
--- a/library/Common/src/main/java/cn/qqtheme/framework/util/ConvertUtils.java
+++ b/library/Common/src/main/java/cn/qqtheme/framework/util/ConvertUtils.java
@@ -19,12 +19,12 @@
 import android.os.Environment;
 import android.provider.DocumentsContract;
 import android.provider.MediaStore;
-import android.support.annotation.ColorInt;
-import android.support.annotation.FloatRange;
 import android.text.TextUtils;
 import android.view.View;
 import android.widget.ListView;
 import android.widget.ScrollView;
+import androidx.annotation.ColorInt;
+import androidx.annotation.FloatRange;
 
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
diff --git a/library/Common/src/main/java/cn/qqtheme/framework/util/DateUtils.java b/library/Common/src/main/java/cn/qqtheme/framework/util/DateUtils.java
index 8d916b2c..532313b5 100644
--- a/library/Common/src/main/java/cn/qqtheme/framework/util/DateUtils.java
+++ b/library/Common/src/main/java/cn/qqtheme/framework/util/DateUtils.java
@@ -1,7 +1,7 @@
 package cn.qqtheme.framework.util;
 
-import android.support.annotation.IntDef;
-import android.support.annotation.NonNull;
+import androidx.annotation.IntDef;
+import androidx.annotation.NonNull;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/library/FilePicker/build.gradle b/library/FilePicker/build.gradle
index 33e04889..eda15d6a 100644
--- a/library/FilePicker/build.gradle
+++ b/library/FilePicker/build.gradle
@@ -7,5 +7,5 @@ ext {
 }
 
 dependencies {
-    compile project(":library:Common")
+    api project(":library:Common")
 }
diff --git a/library/FilePicker/src/main/java/cn/qqtheme/framework/drawable/StateColorDrawable.java b/library/FilePicker/src/main/java/cn/qqtheme/framework/drawable/StateColorDrawable.java
index e69b4f9b..86f80a21 100644
--- a/library/FilePicker/src/main/java/cn/qqtheme/framework/drawable/StateColorDrawable.java
+++ b/library/FilePicker/src/main/java/cn/qqtheme/framework/drawable/StateColorDrawable.java
@@ -2,7 +2,7 @@
 
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
-import android.support.annotation.ColorInt;
+import androidx.annotation.ColorInt;
 
 /**
  * 按下状态与普通状态下显示不同的颜色
diff --git a/library/FilePicker/src/main/java/cn/qqtheme/framework/picker/FilePicker.java b/library/FilePicker/src/main/java/cn/qqtheme/framework/picker/FilePicker.java
index 35fe3f10..43f35edb 100644
--- a/library/FilePicker/src/main/java/cn/qqtheme/framework/picker/FilePicker.java
+++ b/library/FilePicker/src/main/java/cn/qqtheme/framework/picker/FilePicker.java
@@ -4,9 +4,6 @@
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
-import android.support.annotation.IntDef;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
 import android.view.Gravity;
 import android.view.View;
 import android.widget.AdapterView;
@@ -17,6 +14,9 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 
+import androidx.annotation.IntDef;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import cn.qqtheme.framework.adapter.FileAdapter;
 import cn.qqtheme.framework.adapter.PathAdapter;
 import cn.qqtheme.framework.entity.FileItem;
diff --git a/library/FilePicker/src/main/java/cn/qqtheme/framework/util/FileUtils.java b/library/FilePicker/src/main/java/cn/qqtheme/framework/util/FileUtils.java
index ba029e9c..8e65379d 100644
--- a/library/FilePicker/src/main/java/cn/qqtheme/framework/util/FileUtils.java
+++ b/library/FilePicker/src/main/java/cn/qqtheme/framework/util/FileUtils.java
@@ -1,7 +1,7 @@
 package cn.qqtheme.framework.util;
 
-import android.support.annotation.IntDef;
 import android.webkit.MimeTypeMap;
+import androidx.annotation.IntDef;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
diff --git a/library/ImagePicker/build.gradle b/library/ImagePicker/build.gradle
index f6893883..bc01238e 100644
--- a/library/ImagePicker/build.gradle
+++ b/library/ImagePicker/build.gradle
@@ -7,6 +7,6 @@ ext {
 }
 
 dependencies {
-    compile 'com.squareup.picasso:picasso:latest.release'
-    compile project(":library:Common")
+    implementation 'com.squareup.picasso:picasso:latest.release'
+    implementation project(":library:Common")
 }
diff --git a/library/MultiplePicker/build.gradle b/library/MultiplePicker/build.gradle
index e1a94ee0..f40c5cd1 100644
--- a/library/MultiplePicker/build.gradle
+++ b/library/MultiplePicker/build.gradle
@@ -7,5 +7,5 @@ ext {
 }
 
 dependencies {
-    compile project(":library:Common")
+    api project(":library:Common")
 }
diff --git a/library/MultiplePicker/src/main/java/cn/qqtheme/framework/picker/MultiplePicker.java b/library/MultiplePicker/src/main/java/cn/qqtheme/framework/picker/MultiplePicker.java
index 659bf97f..f19bbe67 100644
--- a/library/MultiplePicker/src/main/java/cn/qqtheme/framework/picker/MultiplePicker.java
+++ b/library/MultiplePicker/src/main/java/cn/qqtheme/framework/picker/MultiplePicker.java
@@ -1,7 +1,6 @@
 package cn.qqtheme.framework.picker;
 
 import android.app.Activity;
-import android.support.annotation.NonNull;
 import android.view.Gravity;
 import android.widget.CheckBox;
 import android.widget.LinearLayout;
@@ -12,6 +11,7 @@
 import java.util.Arrays;
 import java.util.List;
 
+import androidx.annotation.NonNull;
 import cn.qqtheme.framework.popup.ConfirmPopup;
 
 /**
diff --git a/library/WheelPicker/build.gradle b/library/WheelPicker/build.gradle
index e7f07b5a..8cb58a27 100644
--- a/library/WheelPicker/build.gradle
+++ b/library/WheelPicker/build.gradle
@@ -7,5 +7,5 @@ ext {
 }
 
 dependencies {
-    compile project(":library:Common")
+    api project(":library:Common")
 }
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/AddressPicker.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/AddressPicker.java
index e75e23d0..1cc47454 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/AddressPicker.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/AddressPicker.java
@@ -1,8 +1,6 @@
 package cn.qqtheme.framework.picker;
 
 import android.app.Activity;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
 import android.view.Gravity;
 import android.view.View;
 import android.widget.LinearLayout;
@@ -10,6 +8,8 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import cn.qqtheme.framework.entity.City;
 import cn.qqtheme.framework.entity.County;
 import cn.qqtheme.framework.entity.Province;
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/CarNumberPicker.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/CarNumberPicker.java
index 20390011..25120f10 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/CarNumberPicker.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/CarNumberPicker.java
@@ -1,7 +1,7 @@
 package cn.qqtheme.framework.picker;
 
 import android.app.Activity;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DateTimePicker.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DateTimePicker.java
index f1122e6c..6a7a7eb4 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DateTimePicker.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DateTimePicker.java
@@ -1,8 +1,8 @@
 package cn.qqtheme.framework.picker;
 
 import android.app.Activity;
-import android.support.annotation.IntDef;
-import android.support.annotation.NonNull;
+import androidx.annotation.IntDef;
+import androidx.annotation.NonNull;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.View;
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DoublePicker.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DoublePicker.java
index 11481008..b64187d8 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DoublePicker.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/DoublePicker.java
@@ -1,7 +1,7 @@
 package cn.qqtheme.framework.picker;
 
 import android.app.Activity;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.View;
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/LinkagePicker.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/LinkagePicker.java
index c3fb6f9b..0d5e7953 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/LinkagePicker.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/LinkagePicker.java
@@ -1,9 +1,9 @@
 package cn.qqtheme.framework.picker;
 
 import android.app.Activity;
-import android.support.annotation.FloatRange;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
+import androidx.annotation.FloatRange;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.View;
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/SinglePicker.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/SinglePicker.java
index 921fc6f2..ef1f8065 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/SinglePicker.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/SinglePicker.java
@@ -1,7 +1,7 @@
 package cn.qqtheme.framework.picker;
 
 import android.app.Activity;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.View;
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/WheelPicker.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/WheelPicker.java
index 785a0325..a636ce06 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/WheelPicker.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/picker/WheelPicker.java
@@ -2,10 +2,10 @@
 
 import android.app.Activity;
 import android.graphics.Typeface;
-import android.support.annotation.ColorInt;
-import android.support.annotation.FloatRange;
-import android.support.annotation.IntRange;
-import android.support.annotation.Nullable;
+import androidx.annotation.ColorInt;
+import androidx.annotation.FloatRange;
+import androidx.annotation.IntRange;
+import androidx.annotation.Nullable;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
diff --git a/library/WheelPicker/src/main/java/cn/qqtheme/framework/widget/WheelView.java b/library/WheelPicker/src/main/java/cn/qqtheme/framework/widget/WheelView.java
index c9526cc0..1c279ab3 100644
--- a/library/WheelPicker/src/main/java/cn/qqtheme/framework/widget/WheelView.java
+++ b/library/WheelPicker/src/main/java/cn/qqtheme/framework/widget/WheelView.java
@@ -8,9 +8,6 @@
 import android.graphics.Typeface;
 import android.os.Handler;
 import android.os.Message;
-import android.support.annotation.ColorInt;
-import android.support.annotation.FloatRange;
-import android.support.annotation.IntRange;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.GestureDetector;
@@ -29,6 +26,9 @@
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
 
+import androidx.annotation.ColorInt;
+import androidx.annotation.FloatRange;
+import androidx.annotation.IntRange;
 import cn.qqtheme.framework.entity.WheelItem;
 import cn.qqtheme.framework.util.ConvertUtils;
 import cn.qqtheme.framework.util.LogUtils;
diff --git a/publish.gradle b/publish.gradle
index a3e6adad..c252a802 100644
--- a/publish.gradle
+++ b/publish.gradle
@@ -112,10 +112,6 @@ publishing {
     }
 }
 
-afterEvaluate {
-    publishing.publications.MyPublication.artifact(bundleRelease)
-}
-
 bintray {
     // You should configure "bintray.user" and "bintray.apiKey" in the gradle.properties
     // that in gradle cache directory (～/.gradle/gradle.properties)