Reactjs - 我正在尝试处理弹出窗口中的事件,但在事件执行后弹出窗口没有按应有的方式呈现

Reactjs - I am trying to handle and event in a popup, but the popup is not being rendered as it should after an event execution

我有一个函数,当用户单击 reactjs 应用程序弹出窗口上的按钮时调用该函数。

sendAnswer = () => {

      event.preventDefault();
      console.log(this.answer);
      const data = { answer: this.answer };
      const requestInfo = {
          method: 'POST',
          body: JSON.stringify(data),
          headers: new Headers({
              'Content-Type': 'application/json'
          }),
      };

      fetch('http://www.mocky.io/v2/5d920649310000d48110ccd7', requestInfo)
      .then(response => {
          if(response.ok) {
            console.log('ok')
            this.setState({sentAnswer: true})

              return response.json()
          }
          throw new Error("Erro ao enviar a resposta...");
      })
      .catch(e => {
          this.setState({ message: e.message });
      });
    }

我在 render() 中有这段代码:

{!this.state.sent ? (
            <textarea type="text" id="form10" className="md-textarea form-control" rows="3" onChange={e => this.answer = e.target.value} placeholder="Insira a sua resposta aqui" />
                                ) : ( 
            <Alert color="primary" className="text-center"> Message was sent! </Alert>
                                )}  

但是,弹出窗口没有刷新。正在调用和执行 sendAswer 函数,但我需要刷新弹出窗口并在执行后显示消息 "Message was sent!"。

我怎样才能做到?

this.setState({sentAnswer: true})

这是您正在更新的状态,但您的状态基于 !this.state.sent

将条件更改为 !this.state.sentAnswerthis.setState({sent: true})。我相信这就是事实,只是打错了。