我想在用户单击输入元素时执行此操作,表单中的按钮元素将从麦克风图标更改为发送图标。我的想法是从onclick或mouseenter处理程序获取值,并通过if-else语句传递它,然后设置正确的图标
这是我的密码`
import React, { Component } from 'react'
import { Field, reduxForm } from 'redux-form';
import InsertEmoticonIcon from '@material-ui/icons/InsertEmoticon';
import AttachFileIcon from '@material-ui/icons/AttachFile';
import MicIcon from '@material-ui/icons/Mic';
import SendIcon from '@material-ui/icons/Send';
import styled from 'styled-components'
import './MessageSender.css'
export class MessageSender extends Component {
constructor(props){
super(props);
this.state = {
bool: 'false'
}
this.onMouse = this.onMouse.bind(this);
}
onMouse(){
this.setState({bool: "true"})
}
renderInput(formProps){
return <input
onChange={formProps.input.onChange}
value={formProps.input.value}
placeholder="Message"
onClick={this.onMouse()}
/>
}
onSubmit(formValues){
console.log(formValues);
}
check(){
// return <Send />
if(this.state.bool === 'true'){
return <Send />
}else{
return <Mic />
}
}
render() {
return (
<form autoComplete="off" onSubmit={this.props.handleSubmit(this.onSubmit)}>
<Emotion />
<Field name="Message" component={this.renderInput} placeholder="Message" />
<Attach />
<button>
{this.check()}
</button>
</form>
)
}
}
const Emotion = styled(InsertEmoticonIcon)`
width: 40px!important;
height: 40px!important;
color: rgb(170,170,170);
`
const Attach = styled(AttachFileIcon)`
width: 40px!important;
height: 40px!important;
color: rgb(170,170,170);
margin-right: 0.3rem;
`
const Mic = styled(MicIcon)`
`
const Send = styled(SendIcon)`
`
export default reduxForm({
form: 'message'
})(MessageSender);
`
因此,这是我的错误
请帮帮我,谢谢!
1条答案
按热度按时间wpcxdonn1#
试试这个。我认为使用箭头函数可以解决使用
this
. 当您将函数传递给时,不应该调用该函数onClick
```renderInput = (formProps) => {
}