androidNavigationBar Hide Not working

I’m using expo and reat-nactive-webview

androidNavigationBar sticky-immersive Mode when application runs for the first time, it works normally
However operation does not work after entering the keypad. Where should I look?

//app.json
"androidNavigationBar": {
            "visible": "sticky-immersive"
}
//my app code
import * as React from 'react';
import { View } from 'react-native';
import { WebView } from 'react-native-webview';

export default class App extends React.Component {
    render() {
        return (
            <View style={{ flex: 1 }}>
                <WebView
                    source={{
                        uri: 'https://forums.expo.io/',
                    }}
                />
            </View>
        );
    }
}

resolved this problem , it’s expo-cli issue