I'm building a react native application and found out the react-native-multiple-select library which i emplemented following the documentation https://www.npmjs.com/package/react-native-multiple-select . The view is being displayed but the selected items are not showing up, only the counter of selected items works. I think it's because I don't have the control over how its function getSelectedItemsExt() works and from my researchs on internet like React-native-multiple-select: Cannot read the property 'getSelectedItemsExt' of undefined I only found that I should be doing
<View>
{ this.multiselect
?
this.multiselect.getSelectedItemsExt()
:
null}
</View>
.
Though it helped get rid of the red screen, it doesn't display the items.
So can you please tell me how I can manage
this.multiselect.getSelectedItemsExt()
and get my items displayed.
Any help is much appreciated. Thanks in advance.
I can guess throughout the question that you are passing the hideTags props to the MultiSelect component i.e you are having inside the component <MultiSelect hideTags>. This hideTags was your problem because It does what it's name sounds, i.e it doesn't display the values you set in your FlatList or whatever component. If you want the values to be displayed then remove hideTags from inside the component and you should have your items displayed. Well you want also to customize the output of this library, it's colors and InputField style then head up to the root of your react native application, then go to node-module -> react-native-multiple-select -> Library there you will find the core file that you can customize at your leisure.
Related
I am using react-native-collapsible for a project. Everything working well but I would like the user to be able to close the collapsible by clicking anywhere on the screen when it is opened. On a desktop it would be easy with a !event.target match but since I am new to React Native (expo) I am a bit out of solution.
Thanks a lot, I pasted no code because I am currently using the Lorem example from the lib so won't be much useful.
You can Make one useState variable and pass it into the property of
collapsed={Your useState Veriable} react-native-collapsible .
also make all the Design wrap into TouchableOpacity and it's onPress event to make it true.
I'm using react-router-native to navigate between the "pages" of my app. The problem here is that I want to change the app-bar visibility depending on the user location.
So, I need a way to watch and detect the route, so I can manipulate-it
Solved!
To solve the problem I created a callback function inside my components, that returns whenever it loads. So with that I could just check a variable like
isAtLogin ? (<Appbar />) : (<View />) to show and hide the appbar.
I am trying to use 'react-native-popup-dialog' to include pop ups in my react-native app.
I have a component 'HeaderView' which I am including in all other components for example 'Home' as
<HeaderView/>.
For 'HeaderView' component I have set flex to 0.5 and there is a button whose onpress event I want to capture in 'Home' component.
onPress={() => {
this.popupDialog.show();
}}
And PopupDialog exists in 'Home' Component.
If I include PopupDialog in HeaderView, I get popup only in 0.5 (flex) part of screen.
Is there any way to achieve this or will I have to discard my HeaderView component and add its logic in all components?
You can do that in so many ways.
As one of those you can use this:
Add some listener in the root of your app (e.g: App.js) and render popup dialog there, and finally show modal with emitting the listener. (react-native-event-listeners)
Another simple way is using ContextApi
But you should know that the best way is rendering your main modal in root and call the functionalities about that with some tools like the above examples or even something like redux.
I'm trying to build a React Native app and would like to implement a component just like in Quora where upon clicking the question, the component expands and shows the remaining details (text/images of the question).
I tried using react-native-panel from https://github.com/dwicao/react-native-panel#readme, but it can only handle text in the panel before expanding. I'd like to implement a panel that has an image in it even before I press on the panel to expand. Would love it if anyone could refer me to any npm packages that use components to achieve this. Thank you!
Use this tutorial https://blog.theodo.com/2020/06/build-accordion-list-react-native/. Stick the desired image somewhere there in the code.
I'm a brand new junior dev working on a react-native app for the first time. I have been searching for quite a while for a way to add a link to the text of a react-native checkbox's value text. If anyone has a link to documentation that might explain what I want to do, I would be super appreciative since I haven't found anything helpful yet. I saw that you can not add html elements into native after I tried a number of variations of anchors. I've tried adding Link to variations and attempted to add an onPress function to the label. I'm grasping at straws here... is this even possible to do?
To be clear, I want a user to be able to press the words "Terms of Service" and have it link to the page that has the terms
{this.props.isUser &&
<CheckBox
containerStyle={styles.checkbox}
onChange={(event, checked) => this.updateAttr('terms', checked)}
value={this.props.program.terms}
label="I have read and understand the Terms of Service"
labelLines={2}
/>
}
Instead of adding the "I accept...." as a label to checkbox, put the Check box without any label and the text 'I have read' as separate Text elements inside a view element and align them accordingly. Then inside the view, put the terms and conditions part inside a touchable and use React Native Linking to link the touchable to open a URL when touched.
https://facebook.github.io/react-native/docs/linking.html
React-Native Open Url in default web browser