diff --git a/README.md b/README.md
index 392c437f52ceb0b30b173b9213a7ecb53c83320f..e1e953764096fbeba1bf70c79531e98aca23318b 100644
--- a/README.md
+++ b/README.md
@@ -16,14 +16,15 @@
 |pickerTitleText       |            |string  |pls select         |
 |pickerConfirmBtnColor |            |array   |[1, 186, 245, 1]   |
 |pickerCancelBtnColor  |            |array   |[1, 186, 245, 1]   |
-|pickerTitleColor      |            |array   |[20, 20, 20, 1])   |
+|pickerTitleColor      |            |array   |[20, 20, 20, 1]    |
 |pickerToolBarBg       |            |array   |[232, 232, 232, 1] |
 |pickerBg              |            |array   |[196, 199, 206, 1] |
 |pickerToolBarFontSize |            |number  |16                 |
+|wheelFlex             |            |array   |[1, 1, 1]          |
 |pickerFontSize        |            |number  |16                 |
 |pickerFontColor       |            |array   |[31, 31, 31, 1]    |
 |pickerData            |            |array   |                   |
-|selectedValue         |            |string  |                   |
+|selectedValue         |            |array   |                   |
 |onPickerConfirm       |            |function|                   |
 |onPickerCancel        |            |function|                   |
 |onPickerSelect        |            |function|                   |
diff --git a/android/src/main/java/com/beefe/picker/PickerViewModule.java b/android/src/main/java/com/beefe/picker/PickerViewModule.java
index c8e16acefe4927ab14f100a2b6288d501f8f105e..ed90d24385c58c3955179689c75d75459de7c1c6 100644
--- a/android/src/main/java/com/beefe/picker/PickerViewModule.java
+++ b/android/src/main/java/com/beefe/picker/PickerViewModule.java
@@ -497,6 +497,7 @@ public class PickerViewModule extends ReactContextBaseJavaModule implements Life
 
     @Override
     public void onHostDestroy() {
-
+        hide();
+        dialog = null;
     }
 }
diff --git a/package.json b/package.json
index ac2a11395d3b5313bc04160996af0fb4e46757ce..7bb991adc1394c2faede44f5b600ec3dcec08e22 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "react-native-picker",
-  "version": "4.0.19",
-  "description": "",
+  "version": "4.1.0",
+  "description": "A Native Picker with high performance.",
   "main": "index.js",
   "types": "index.d.ts",
   "scripts": {