How to make react-native-elements Tooltip size dynamic based on its content? - react-native

Question

The React Native Elements Tooltip (docs here) requires you to pass in the width and height property for the tooltip, but I want to create a generic tooltip button that can receive any element as its popover prop.
The following example is what I have, but it uses the default size set to the tooltip by the React Native Element library:
import React from 'react'
import { Tooltip } from 'react-native-elements'
import styled from 'styled-components'
const Container = styled.View`
justify-content: center;
align-items: center;
background-color: #aaf;
height: 25px;
width: 25px;
border-radius: 12.5px;
`
const Icon = styled.Text``
export default function TooltipButton({ tooltip }) {
return (
<Tooltip popover={tooltip}>
<Container>
<Icon>?</Icon>
</Container>
</Tooltip>
)
}
When the content is bigger than the default size it looks like this.
I Don't want to have to pass a fixed size as prop to this component, I would like it to have a tooltip size depending on it's content.

Answer 1

After some time trying to figure this out, I managed to do a somewhat autosize tooltip button that receives a content element as a prop (tooltip) and resizes itself based on its content.
The only way I got it to work properly was to set an initial size bigger than the content (500x500) and add more size to it (+30).
import React, { useState } from 'react'
import { Tooltip } from 'react-native-elements'
import styled from 'styled-components'
const Container = styled.View`
justify-content: center;
align-items: center;
background-color: #aaf;
height: 25px;
width: 25px;
border-radius: 12.5px;
`
const Icon = styled.Text``
export default function TooltipButton({ tooltip }) {
const [tooltipSize, setTooltipSize] = useState({ w: 500, h: 500 })
const tooltipClone = React.cloneElement(
tooltip,
{ onLayout: (e) => setTooltipSize({ w: e.nativeEvent.layout.width, h: e.nativeEvent.layout.height }) }
)
return (
<Tooltip
popover={tooltipClone}
width={tooltipSize.w + 30}
height={tooltipSize.h + 30}
>
<Container>
<Icon>?</Icon>
</Container>
</Tooltip>
)
}
End result looks like this.

Answer 2

I guess it's enough to add 20 units to width and height. That's required because the default style applied to the Tooltip component adds a padding of 10, see here.

Answer 3

It seems that using null forces height and width to take as much space as the contents need!
height={null} // using height={null} seems to look good
width={null} // using width={200} seems to look better than null
Source of this hint: ToolTip in react native