diff --git a/ChangeLog.md b/ChangeLog.md
index fbef7cee..042dc341 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,6 +1,8 @@
 # 更新日志
 
-- 优化选择器设置标题设置，避免设置不生效问题；
+## 4.0.1 - 2021.09.26
+
+- 优化选择器标题设置，避免设置不生效问题；
 
 ## 4.0.0 - 2021.09.18
 
diff --git a/Common/src/main/java/com/github/gzuliyujiang/dialog/ModalDialog.java b/Common/src/main/java/com/github/gzuliyujiang/dialog/ModalDialog.java
index 47ba3844..fd0a0d68 100644
--- a/Common/src/main/java/com/github/gzuliyujiang/dialog/ModalDialog.java
+++ b/Common/src/main/java/com/github/gzuliyujiang/dialog/ModalDialog.java
@@ -214,6 +214,24 @@ private void maybeBuildEllipseButton() {
         }
     }
 
+    @Override
+    public void setTitle(@Nullable CharSequence title) {
+        if (titleView != null) {
+            titleView.setText(title);
+        } else {
+            super.setTitle(title);
+        }
+    }
+
+    @Override
+    public void setTitle(int titleId) {
+        if (titleView != null) {
+            titleView.setText(titleId);
+        } else {
+            super.setTitle(titleId);
+        }
+    }
+
     @CallSuper
     @Override
     public void onClick(View v) {
diff --git a/README.md b/README.md
index 9d36f04d..6c18120d 100644
--- a/README.md
+++ b/README.md
@@ -140,6 +140,7 @@ data.add(new GoodsCategoryBean(4, "医疗保健"));
 data.add(new GoodsCategoryBean(5, "酒水饮料"));
 data.add(new GoodsCategoryBean(6, "图书音像"));
 OptionPicker picker = new OptionPicker(this);
+picker.setTitle("货物分类");
 picker.setBodyWidth(140);
 picker.getWheelView().setIndicatorColor(0xFFFF0000);
 picker.getWheelView().setTextColor(0xFFFF00FF);
@@ -202,33 +203,49 @@ picker.show();
 ### 在 XML 中
 
 ```xml
-<com.github.gzuliyujiang.wheelview.widget.WheelView android:id="@+id/wheel_view"
-    android:layout_width="117dp" android:layout_height="wrap_content"
-    android:layout_gravity="center_horizontal" app:wheel_atmosphericEnabled="true"
-    app:wheel_curvedEnabled="true" app:wheel_curvedIndicatorSpace="4dp"
-    app:wheel_curvedMaxAngle="60" app:wheel_indicatorColor="#FF0081FF" app:wheel_itemSpace="50dp"
-    app:wheel_itemTextColor="#FF474747" app:wheel_itemTextColorSelected="#FF0081FF"
+<com.github.gzuliyujiang.wheelview.widget.WheelView
+    android:id="@+id/wheel_view"
+    android:layout_width="117dp"
+    android:layout_height="wrap_content"
+    android:layout_gravity="center_horizontal"
+    app:wheel_atmosphericEnabled="true"
+    app:wheel_curvedEnabled="true"
+    app:wheel_curvedIndicatorSpace="4dp"
+    app:wheel_curvedMaxAngle="60"
+    app:wheel_indicatorColor="#FF0081FF"
+    app:wheel_itemSpace="50dp"
+    app:wheel_itemTextColor="#FF474747"
+    app:wheel_itemTextColorSelected="#FF0081FF"
     app:wheel_itemTextSize="20sp" />
 ```
 
 ```xml
-<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"
+<LinearLayout
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
     android:orientation="vertical">
 
-    <com.github.gzuliyujiang.wheelpicker.widget.OptionWheelLayout android:id="@+id/wheel_option"
-        android:layout_width="90dp" android:layout_height="150dp"
-        android:layout_gravity="center_horizontal" app:wheel_itemTextAlign="center" />
-
-    <com.github.gzuliyujiang.wheelpicker.widget.DateWheelLayout android:layout_width="120dp"
-        android:layout_height="150dp" android:layout_gravity="center_horizontal"
-        app:wheel_dateMode="month_day" app:wheel_dayLabel="日" app:wheel_monthLabel="月" />
+    <com.github.gzuliyujiang.wheelpicker.widget.OptionWheelLayout
+        android:id="@+id/wheel_option"
+        android:layout_width="90dp"
+        android:layout_height="150dp"
+        android:layout_gravity="center_horizontal"
+        app:wheel_itemTextAlign="center" />
+
+    <com.github.gzuliyujiang.wheelpicker.widget.DateWheelLayout
+        android:layout_width="120dp"
+        android:layout_height="150dp"
+        android:layout_gravity="center_horizontal"
+        app:wheel_dateMode="month_day"
+        app:wheel_dayLabel="日"
+        app:wheel_monthLabel="月" />
 
     ...
 
 </LinearLayout>
 ```
 
-### 定制样式
+### 自定义样式
 
 #### 全局配置所有选择器样式及配色
 
@@ -251,7 +268,6 @@ public class DemoApp extends Application {
 #### 在`app/.../res/values/styles.xml`中重写`WheelDefault`覆盖
 
 ```xml
-
 <style name="WheelDefault">
     <item name="wheel_visibleItemCount">5</item>
     <item name="wheel_itemTextAlign">center</item>
diff --git a/app/src/main/java/com/github/gzuliyujiang/fallback/activity/SinglePickerActivity.java b/app/src/main/java/com/github/gzuliyujiang/fallback/activity/SinglePickerActivity.java
index 40d1f768..d704eed8 100644
--- a/app/src/main/java/com/github/gzuliyujiang/fallback/activity/SinglePickerActivity.java
+++ b/app/src/main/java/com/github/gzuliyujiang/fallback/activity/SinglePickerActivity.java
@@ -133,6 +133,7 @@ public void onOptionBean(View view) {
         data.add(new GoodsCategoryBean(5, "酒水饮料"));
         data.add(new GoodsCategoryBean(6, "图书音像"));
         OptionPicker picker = new OptionPicker(this);
+        picker.setTitle("货物分类");
         picker.setBodyWidth(140);
         picker.getWheelView().setIndicatorColor(0xFFFF0000);
         picker.getWheelView().setTextColor(0xFFFF00FF);