react如何实现密码隐藏功能

import{
View,
Text,
TouchableWithoutFeedback,
TextInput,
Image,
StyleSheet,
}from'react-native';

exportdefaultclassAppextendsComponent{
constructor(props){
super(props);
this.state={
imageState:false,
};
}
render(){
return(


请输入密码:

test12345test


{this.state.imageState?(
):()}



);
}
onPressChang=()=>{
this.setState({
imageState:!this.state.imageState,
});
};
}
constpageStyle=StyleSheet.create({
textInfoStyle:{
alignSelf:'center',
marginLeft:40,
color:'#343434',
fontSize:16,
flex:1,
},
textStyle:{
alignSelf:'center',
marginLeft:10,
color:'#343434',
fontSize:16,
},
});