Use global detection

This commit is contained in:
Zhiyuan Zheng 2022-05-07 13:23:08 +02:00
parent 7c48c61c99
commit ea0b85365e
2 changed files with 21 additions and 24 deletions

View File

@ -1,6 +1,6 @@
import { useAccessibility } from '@utils/accessibility/AccessibilityManager'
import { StyleConstants } from '@utils/styles/constants'
import { useEffect, useState } from 'react'
import { AccessibilityInfo, Text, TextProps, TextStyle } from 'react-native'
import { Text, TextProps, TextStyle } from 'react-native'
type Props =
| {
@ -27,23 +27,8 @@ const CustomText: React.FC<Props & TextProps> = ({
lineHeight,
...rest
}) => {
const [isBoldText, setIsBoldText] = useState(false)
useEffect(() => {
const boldTextChangedSubscription = AccessibilityInfo.addEventListener(
'boldTextChanged',
boldTextChanged => {
setIsBoldText(boldTextChanged)
}
)
const { boldTextEnabled } = useAccessibility()
AccessibilityInfo.isBoldTextEnabled().then(boldTextEnabled => {
setIsBoldText(boldTextEnabled)
})
return () => {
boldTextChangedSubscription.remove()
}
}, [])
enum BoldMapping {
'Normal' = '600',
'Bold' = '800'
@ -61,15 +46,14 @@ const CustomText: React.FC<Props & TextProps> = ({
})
},
{
fontWeight: isBoldText
fontWeight: boldTextEnabled
? BoldMapping[fontWeight]
: StyleConstants.Font.Weight[fontWeight]
}
]}
{...rest}
>
{children}
</Text>
children={children}
/>
)
}

View File

@ -4,11 +4,13 @@ import { AccessibilityInfo } from 'react-native'
type ContextType = {
reduceMotionEnabled: boolean
screenReaderEnabled: boolean
boldTextEnabled: boolean
}
const AccessibilityContext = createContext<ContextType>({
reduceMotionEnabled: false,
screenReaderEnabled: false
screenReaderEnabled: false,
boldTextEnabled: false
})
export const useAccessibility = () => useContext(AccessibilityContext)
@ -16,6 +18,7 @@ export const useAccessibility = () => useContext(AccessibilityContext)
const AccessibilityManager: React.FC = ({ children }) => {
const [reduceMotionEnabled, setReduceMotionEnabled] = useState(false)
const [screenReaderEnabled, setScreenReaderEnabled] = useState(false)
const [boldTextEnabled, setBoldTextEnabled] = useState(false)
const handleReduceMotionChanged = (reduceMotionEnabled: boolean) =>
setReduceMotionEnabled(reduceMotionEnabled)
@ -23,11 +26,16 @@ const AccessibilityManager: React.FC = ({ children }) => {
const handleScreenReaderEnabled = (screenReaderEnabled: boolean) =>
setScreenReaderEnabled(screenReaderEnabled)
const handleBoldTextEnabled = (boldTextEnabled: boolean) =>
setBoldTextEnabled(boldTextEnabled)
const loadAccessibilityInfo = async () => {
const reduceMotion = await AccessibilityInfo.isReduceMotionEnabled()
const screenReader = await AccessibilityInfo.isScreenReaderEnabled()
const boldText = await AccessibilityInfo.isBoldTextEnabled()
setReduceMotionEnabled(reduceMotion)
setScreenReaderEnabled(screenReader)
setBoldTextEnabled(boldText)
}
useEffect(() => {
@ -41,16 +49,21 @@ const AccessibilityManager: React.FC = ({ children }) => {
'screenReaderChanged',
handleScreenReaderEnabled
)
const boldTextSubscription = AccessibilityInfo.addEventListener(
'boldTextChanged',
handleBoldTextEnabled
)
return () => {
reduceMotionSubscription.remove()
screenReaderSubscription.remove()
boldTextSubscription.remove()
}
}, [])
return (
<AccessibilityContext.Provider
value={{ reduceMotionEnabled, screenReaderEnabled }}
value={{ reduceMotionEnabled, screenReaderEnabled, boldTextEnabled }}
>
{children}
</AccessibilityContext.Provider>