如何在本机的导航抽屉中调用类函数？

Question

我想在抽屉打开和抽屉关闭事件上调用类函数，因为我是React Native的新手，有人可以帮助我吗？

    const defaultGetStateForAction =Drawer.router.getStateForAction;
    Drawer.router.getStateForAction = (action, state) => {

if(state && action.type === 'Navigation/OPEN_DRAWER' ) {
  Alert.alert("drawerOpen")
    //here call a class function with true value
}

if(state && action.type === 'Navigation/DRAWER_CLOSED') {
  Alert.alert("drawerClose")
    //here call a class function  with false value
}

Answer 1

使用以下代码解决您的问题