react-native-router-flux物理返回键

1.引入BackHandler 从react-native中

2.在componentDidMount中添加下面那行监听代码

this.backHandler = BackHandler.addEventListener('hardwareBackPress', this.handleBackPress);

3.在componentWillUnmount添加

componentWillUnmount() {
    this.backHandler.remove()
}

4.在handleBackPress函数中写相关返回逻辑

handleBackPress = () => {
    Actions.pop(); // 跳转，可以跳转到想去的页面或位置，根据react-native-router-flux组件的方法
     console.log("wo handle back press detail")
    // //this.goBack(); // works best when the goBack is async
    return true;
}