从其他组件访问数据-React Native [英] Access data from other component -React Native

问题描述

我必须访问先前组件中的对象才能在当前组件中显示.我正在尝试发送状态参数作为Navigation方法的第二个参数.

I have to access object from previous component to show in current component. I'm trying to send a state params as second parameter of navigate method.

this.props.navigation.navigate('detail', { objPass: this.state.stObjPass });

尝试访问显示为未定义"的当前组件中的值

while trying to access the value from current component displaying as 'Undefined'

   async componentWillMount() {
   console.log(this.props.state.params.objPass);
   console.log(this.props.objPass);
   console.log(this.props.state.objPass);
    }

它们全部返回空值或未定义.

All of them returning either empty or undefined.

请让我知道如何共享对象.

Please let me know how to share object.

推荐答案

它是this.props.navigation.state.params.objPass，因此您的引用不正确.

It's this.props.navigation.state.params.objPass, so you're just having an incorrect reference.

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