diff --git a/MultiLanguages.apk b/MultiLanguages.apk
index efebef3..0d9bc9f 100644
Binary files a/MultiLanguages.apk and b/MultiLanguages.apk differ
diff --git a/README.md b/README.md
index f916208..d8774ac 100644
--- a/README.md
+++ b/README.md
@@ -10,11 +10,12 @@
 
 ```groovy
 buildscript {
-    ......
+    repositories {
+        maven { url 'https://jitpack.io' }
+    }
 }
 allprojects {
     repositories {
-        // JitPack 远程仓库：https://jitpack.io
         maven { url 'https://jitpack.io' }
     }
 }
@@ -25,7 +26,7 @@ allprojects {
 ```groovy
 dependencies {
     // 语种切换框架：https://github.com/getActivity/MultiLanguages
-    implementation 'com.github.getActivity:MultiLanguages:6.6'
+    implementation 'com.github.getActivity:MultiLanguages:6.8'
 }
 ```
 
diff --git a/app/build.gradle b/app/build.gradle
index 0a5c9d7..900235c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "com.hjq.language.demo"
         minSdkVersion 16
         targetSdkVersion 30
-        versionCode 66
-        versionName "6.6"
+        versionCode 68
+        versionName "6.8"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
 
@@ -30,11 +30,16 @@ dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     implementation project(':library')
 
-    implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation 'com.google.android.material:material:1.2.1'
+    // AppCompat 库：https://developer.android.google.cn/jetpack/androidx/releases/appcompat?hl=zh-cn
+    implementation 'androidx.appcompat:appcompat:1.3.0'
+    // Material 库：https://github.com/material-components/material-components-android
+    implementation 'com.google.android.material:material:1.3.0'
 
     // 标题栏框架：https://github.com/getActivity/TitleBar
-    implementation 'com.github.getActivity:TitleBar:8.5'
+    implementation 'com.github.getActivity:TitleBar:8.6'
+
+    // 吐司框架：https://github.com/getActivity/ToastUtils
+    implementation 'com.github.getActivity:ToastUtils:9.5'
 
     // 内存泄漏检测：https://github.com/square/leakcanary
     debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.7'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 7969e75..a0927c2 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -11,8 +11,8 @@
         android:name=".AppApplication"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:roundIcon="@mipmap/ic_launcher_round"
         android:networkSecurityConfig="@xml/network_security_config"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:theme="@style/AppTheme"
         tools:targetApi="q">
 
diff --git a/app/src/main/java/com/hjq/language/demo/AppApplication.java b/app/src/main/java/com/hjq/language/demo/AppApplication.java
index e8fcc04..ccae0be 100644
--- a/app/src/main/java/com/hjq/language/demo/AppApplication.java
+++ b/app/src/main/java/com/hjq/language/demo/AppApplication.java
@@ -6,6 +6,7 @@
 
 import com.hjq.language.MultiLanguages;
 import com.hjq.language.OnLanguageListener;
+import com.hjq.toast.ToastUtils;
 
 import java.util.Locale;
 
@@ -21,6 +22,9 @@ public final class AppApplication extends Application {
     public void onCreate() {
         super.onCreate();
 
+        // 初始化 Toast 框架
+        ToastUtils.init(this);
+
         // 初始化多语种框架
         MultiLanguages.init(this);
         // 设置语种变化监听器
diff --git a/app/src/main/java/com/hjq/language/demo/MainActivity.java b/app/src/main/java/com/hjq/language/demo/MainActivity.java
index 8936930..032e801 100644
--- a/app/src/main/java/com/hjq/language/demo/MainActivity.java
+++ b/app/src/main/java/com/hjq/language/demo/MainActivity.java
@@ -2,13 +2,17 @@
 
 import android.content.Intent;
 import android.os.Bundle;
+import android.view.View;
 import android.webkit.WebChromeClient;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
 import android.widget.RadioGroup;
 import android.widget.TextView;
 
+import com.hjq.bar.OnTitleBarListener;
+import com.hjq.bar.TitleBar;
 import com.hjq.language.MultiLanguages;
+import com.hjq.toast.ToastUtils;
 
 import java.util.Locale;
 
@@ -19,39 +23,43 @@
  *    desc   : 多语种切换演示
  */
 public final class MainActivity extends BaseActivity
-        implements RadioGroup.OnCheckedChangeListener {
+        implements RadioGroup.OnCheckedChangeListener, OnTitleBarListener {
 
+    private TitleBar mTitleBar;
     private WebView mWebView;
     private RadioGroup mRadioGroup;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_language);
+        setContentView(R.layout.activity_main);
 
-        mWebView = findViewById(R.id.wv_language_web);
-        mRadioGroup = findViewById(R.id.rg_language_languages);
+        mTitleBar = findViewById(R.id.tb_main_bar);
+        mWebView = findViewById(R.id.wv_main_web);
+        mRadioGroup = findViewById(R.id.rg_main_languages);
+
+        mTitleBar.setOnTitleBarListener(this);
 
         mWebView.setWebViewClient(new WebViewClient());
         mWebView.setWebChromeClient(new WebChromeClient());
         mWebView.loadUrl("https://developer.android.google.cn/index.html");
 
         //((TextView) findViewById(R.id.tv_language_activity)).setText(this.getResources().getString(R.string.current_language));
-        ((TextView) findViewById(R.id.tv_language_application)).setText(getApplication().getResources().getString(R.string.current_language));
-        ((TextView) findViewById(R.id.tv_language_system)).setText(MultiLanguages.getLanguageString(this, MultiLanguages.getSystemLanguage(), R.string.current_language));
+        ((TextView) findViewById(R.id.tv_main_language_application)).setText(getApplication().getResources().getString(R.string.current_language));
+        ((TextView) findViewById(R.id.tv_main_language_system)).setText(MultiLanguages.getLanguageString(this, MultiLanguages.getSystemLanguage(), R.string.current_language));
 
         if (MultiLanguages.isSystemLanguage()) {
-            mRadioGroup.check(R.id.rb_language_auto);
+            mRadioGroup.check(R.id.rb_main_language_auto);
         } else {
             Locale locale = MultiLanguages.getAppLanguage();
             if (Locale.CHINA.equals(locale)) {
-                mRadioGroup.check(R.id.rb_language_cn);
+                mRadioGroup.check(R.id.rb_main_language_cn);
             } else if (Locale.TAIWAN.equals(locale)) {
-                mRadioGroup.check(R.id.rb_language_tw);
+                mRadioGroup.check(R.id.rb_main_language_tw);
             } else if (Locale.ENGLISH.equals(locale)) {
-                mRadioGroup.check(R.id.rb_language_en);
+                mRadioGroup.check(R.id.rb_main_language_en);
             } else {
-                mRadioGroup.check(R.id.rb_language_auto);
+                mRadioGroup.check(R.id.rb_main_language_auto);
             }
         }
 
@@ -66,16 +74,16 @@ public void onCheckedChanged(RadioGroup group, int checkedId) {
         // 是否需要重启
         boolean restart = false;
 
-        if (checkedId == R.id.rb_language_auto) {
+        if (checkedId == R.id.rb_main_language_auto) {
             // 跟随系统
             restart = MultiLanguages.setSystemLanguage(this);
-        } else if (checkedId == R.id.rb_language_cn) {
+        } else if (checkedId == R.id.rb_main_language_cn) {
             // 简体中文
             restart = MultiLanguages.setAppLanguage(this, Locale.CHINA);
-        } else if (checkedId == R.id.rb_language_tw) {
+        } else if (checkedId == R.id.rb_main_language_tw) {
             // 繁体中文
             restart = MultiLanguages.setAppLanguage(this, Locale.TAIWAN);
-        } else if (checkedId == R.id.rb_language_en) {
+        } else if (checkedId == R.id.rb_main_language_en) {
             // 英语
             restart = MultiLanguages.setAppLanguage(this, Locale.ENGLISH);
         }
@@ -125,4 +133,15 @@ protected void onDestroy() {
         //销毁此的WebView的内部状态
         mWebView.destroy();
     }
+
+    @Override
+    public void onLeftClick(View view) {}
+
+    @Override
+    public void onTitleClick(View view) {
+        ToastUtils.show(R.string.app_name);
+    }
+
+    @Override
+    public void onRightClick(View view) {}
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_language.xml b/app/src/main/res/layout/activity_main.xml
similarity index 88%
rename from app/src/main/res/layout/activity_language.xml
rename to app/src/main/res/layout/activity_main.xml
index 320e140..5a559dc 100644
--- a/app/src/main/res/layout/activity_language.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -10,13 +10,14 @@
     tools:context=".MainActivity">
 
     <com.hjq.bar.TitleBar
+        android:id="@+id/tb_main_bar"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         app:backButton="false"
         app:title="@string/app_name" />
 
     <com.hjq.language.demo.LanguagesWebView
-        android:id="@+id/wv_language_web"
+        android:id="@+id/wv_main_web"
         android:layout_width="match_parent"
         android:layout_height="0px"
         android:layout_marginTop="10dp"
@@ -28,7 +29,7 @@
         android:background="#dcdcdc" />
 
     <RadioGroup
-        android:id="@+id/rg_language_languages"
+        android:id="@+id/rg_main_languages"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="20dp"
@@ -36,28 +37,28 @@
         android:orientation="horizontal">
 
         <RadioButton
-            android:id="@+id/rb_language_auto"
+            android:id="@+id/rb_main_language_auto"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:checked="true"
             android:text="自动" />
 
         <RadioButton
-            android:id="@+id/rb_language_cn"
+            android:id="@+id/rb_main_language_cn"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginLeft="20dp"
             android:text="简体" />
 
         <RadioButton
-            android:id="@+id/rb_language_tw"
+            android:id="@+id/rb_main_language_tw"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginLeft="20dp"
             android:text="繁体" />
 
         <RadioButton
-            android:id="@+id/rb_language_en"
+            android:id="@+id/rb_main_language_en"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginLeft="20dp"
@@ -77,7 +78,7 @@
             android:text="当前 Activity 语种：" />
 
         <TextView
-            android:id="@+id/tv_language_activity"
+            android:id="@+id/tv_main_language_activity"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginLeft="40dp"
@@ -96,7 +97,7 @@
             android:text="当前 Application 语种：" />
 
         <TextView
-            android:id="@+id/tv_language_application"
+            android:id="@+id/tv_main_language_application"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginLeft="40dp" />
@@ -115,7 +116,7 @@
             android:text="当前 System 语种：" />
 
         <TextView
-            android:id="@+id/tv_language_system"
+            android:id="@+id/tv_main_language_system"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginLeft="40dp" />
diff --git a/build.gradle b/build.gradle
index 5b71af8..eeeecec 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,18 +1,32 @@
 buildscript {
     repositories {
-        jcenter()
+        // 阿里云云效仓库：https://maven.aliyun.com/mvn/guide
+        maven { url 'https://maven.aliyun.com/repository/jcenter' }
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        // 华为开源镜像：https://mirrors.huaweicloud.com/
+        maven { url 'https://repo.huaweicloud.com/repository/maven/' }
+        // JitPack 远程仓库：https://jitpack.io
+        maven { url 'https://jitpack.io' }
+        mavenCentral()
         google()
+        // noinspection JcenterRepositoryObsolete
+        jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.0'
+        classpath 'com.android.tools.build:gradle:4.1.2'
     }
 }
 
 allprojects {
     repositories {
-        maven {url "https://jitpack.io"}
-        jcenter()
+        maven { url 'https://maven.aliyun.com/repository/jcenter' }
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        maven { url 'https://repo.huaweicloud.com/repository/maven/' }
+        maven { url 'https://jitpack.io' }
+        mavenCentral()
         google()
+        // noinspection JcenterRepositoryObsolete
+        jcenter()
     }
 }
 
diff --git a/gradle.properties b/gradle.properties
index 3530b01..07610dd 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -15,3 +15,8 @@ org.gradle.jvmargs=-Xmx1536m
 # 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
+
+# 表示使用 AndroidX
+android.useAndroidX = true
+# 表示将第三方库迁移到 AndroidX
+android.enableJetifier = true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 2aa45d6..947be17 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Wed Jul 18 11:21:06 CST 2018
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+zipStoreBase = GRADLE_USER_HOME
+zipStorePath = wrapper/dists
+distributionBase = GRADLE_USER_HOME
+distributionPath = wrapper/dists
+distributionUrl = https\://services.gradle.org/distributions/gradle-6.5-all.zip
\ No newline at end of file
diff --git a/library/build.gradle b/library/build.gradle
index 818df75..bc39586 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -5,8 +5,15 @@ android {
 
     defaultConfig {
         minSdkVersion 14
-        versionCode 66
-        versionName "6.6"
+        versionCode 68
+        versionName "6.8"
+    }
+
+    android.libraryVariants.all { variant ->
+        // aar 输出文件名配置
+        variant.outputs.all { output ->
+            outputFileName = "language-${android.defaultConfig.versionName}.aar"
+        }
     }
 }
 
diff --git a/library/src/main/java/com/hjq/language/LanguagesObserver.java b/library/src/main/java/com/hjq/language/LanguagesObserver.java
index 2237aa6..e659df0 100644
--- a/library/src/main/java/com/hjq/language/LanguagesObserver.java
+++ b/library/src/main/java/com/hjq/language/LanguagesObserver.java
@@ -53,6 +53,12 @@ public void onConfigurationChanged(Configuration newConfig) {
             return;
         }
         sSystemLanguage = newLocale;
+
+        // 如果当前的语种是跟随系统变化的，那么就需要重置一下当前 App 的语种
+        if (LanguagesConfig.isSystemLanguage(MultiLanguages.getApplication())) {
+            LanguagesConfig.clearLanguage(MultiLanguages.getApplication());
+        }
+
         OnLanguageListener listener = MultiLanguages.getOnLanguagesListener();
         if (listener != null) {
             listener.onSystemLocaleChange(oldLocale, newLocale);
diff --git a/library/src/main/java/com/hjq/language/MultiLanguages.java b/library/src/main/java/com/hjq/language/MultiLanguages.java
index ad183e0..d9b5493 100644
--- a/library/src/main/java/com/hjq/language/MultiLanguages.java
+++ b/library/src/main/java/com/hjq/language/MultiLanguages.java
@@ -12,6 +12,7 @@
  *    time   : 2019/05/03
  *    desc   : 语种切换框架
  */
+@SuppressWarnings("unused")
 public final class MultiLanguages {
 
     /** 应用上下文对象 */