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I am using react-native-modalizar with flatlist props, when I open custom made modal type component, it renders behind the next flatlist component. any solution please
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I have a full screen modal and I want to "navigate" inside modal.
The structure of the modal
is a header and a footer that is the same in all screens and the body that is the different screens. Body is the only that will change.
How can achieve this with React Native Functional component without dependencies.
You can create :
A state React.useState step initialise at 0
An array of object with what you want for "body" elements
A function next and / or back to update state step change body
You can get elements of your body like so :
steps[activeStep].label
You have a good example from here demo sandbox demo and here documentation material ui stepper
I am using functional components and have implemented the following workflow using React Native. I have a parent component that retrieves the current location via a custom hook (using the useState and useEffect hooks) and has registered watchPositionAsync. The location is updated on the parent component. On the parent component, I use a FlatList with onPress that navigates to the next screen as a child component with some props. One of them is the "updated" location.
When I click on the list item, the current location is sent to the child component.
Now the location changes by the listener, but the updated location will only be sent to the parent component and not to the child component. How do I have to use hooks to register the updated location at the child?
The implementation is a bit like on http://5.9.10.113/67799305/how-to-add-clickable-flatlist-item-and-navigate-to-detail-component-in-react-nat
just with a dynamic url from the home component as a prop of Detail.
you can use the redux or the context api. here is the simple solution has already been answered here.
I am developing a mobile app with react native. I have a component "Period" which has a couple of TextInputs, each TextInput is stored as state. This component gets rendered in a flatlist multiple times. Now I wonder how i can get the state values of each instance of "Period" that gets rendered in Flatlist?
Any Explanation how this works in React Native. I thought every component instance has its on states?
Thanks alot
I would suggest to put all your inputs states and onchange functions callbacks in the parent component containing the Flatlist, then you can pass your states as props to children components "Period"s.
I would suggest also working with a library such as Formik to handle dynamic forms with multiple inputs
I am new to react native. How can I pass some data to flat list's footer component? I tried extraData property of flat list but it is not working.
There are different ways to do this:
you can make your footer component a sub-component of your other component and use the state of the parent component to modify the footer as well (most easy)
you can use a global state like with Context, Redux, Recoil, etc.
I have a Flatlist that is rendered with dynamic data, Here is the heirarchy of components used.
FlatList
List Item
Image
Button
Now these child components are rendered via "RenderItem" method of Flatlist, and everything works fine as expected, Now When I want to change any "prop" of the button by using "state" it changes the state (i can see in log) but just cant see changes to the button, which means the button is not rendered after change of state, it works fine if i use it out of the Flatlist Component, but inside, it doesnot work at all.
Any Idea Why?