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perf(col): 使用hooks优化 #3361

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Merged
merged 1 commit into from
Sep 22, 2025
Merged

perf(col): 使用hooks优化 #3361

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20 changes: 11 additions & 9 deletions src/packages/col/col.taro.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import React, {
useContext,
useEffect,
useState,
useMemo,
} from 'react'
import classNames from 'classnames'
import { View } from '@tarojs/components'
Expand All @@ -27,19 +28,16 @@ export const Col: FunctionComponent<Partial<TaroColProps>> = (props) => {
...defaultProps,
...props,
}
const [colName, setColName] = useState('')
const [colStyle, setColStyle] = useState({})
const { gutter } = useContext(DataContext) as any

const classs = () => {
// 定义col的class类
const classs = useMemo(() => {
const prefixCls = 'nut-col'
return `${prefixCls} ${prefixCls}-${span} ${
gutter ? `${prefixCls}-gutter` : ''
} ${prefixCls}-offset-${offset}`
}
const getStyle = () => {
// 定义col的style类
}, [offset, span, gutter])

const getStyle = useMemo(() => {
const style: CSSProperties = {}
if (!isFirst) {
style.paddingLeft = pxTransform((gutter as number) / 2)
Expand All @@ -48,11 +46,15 @@ export const Col: FunctionComponent<Partial<TaroColProps>> = (props) => {
style.paddingRight = pxTransform((gutter as number) / 2)
}
return style
}
}, [isFirst, isLast, gutter])

const [colName, setColName] = useState(classs)
const [colStyle, setColStyle] = useState(getStyle)

useEffect(() => {
setColName(classs)
setColStyle(getStyle)
}, [span, offset, gutter])
}, [classs, getStyle])

return (
<View
Expand Down
20 changes: 11 additions & 9 deletions src/packages/col/col.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import React, {
useContext,
useEffect,
useState,
useMemo,
} from 'react'
import classNames from 'classnames'
import { DataContext } from '@/packages/row/context'
Expand All @@ -29,15 +30,14 @@ export const Col: FunctionComponent<
}
const { gutter } = useContext(DataContext) as any

const classs = () => {
// 定义col的class类
const classs = useMemo(() => {
const prefixCls = 'nut-col'
return `${prefixCls} ${prefixCls}-${span} ${
gutter ? `${prefixCls}-gutter` : ''
} ${prefixCls}-offset-${offset}`
}
const getStyle = () => {
// 定义col的style类
}, [offset, span, gutter])

const getStyle = useMemo(() => {
const style: CSSProperties = {}
if (!isFirst) {
style.paddingLeft = `${(gutter as number) / 2}px`
Expand All @@ -46,13 +46,15 @@ export const Col: FunctionComponent<
style.paddingRight = `${(gutter as number) / 2}px`
}
return style
}
const [colName, setColName] = useState(classs())
const [colStyle, setColStyle] = useState(getStyle())
}, [isFirst, isLast, gutter])

const [colName, setColName] = useState(classs)
const [colStyle, setColStyle] = useState(getStyle)

useEffect(() => {
setColName(classs)
setColStyle(getStyle)
}, [span, offset, gutter])
}, [classs, getStyle])

return (
<div
Expand Down
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