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* 响应式设计 Hook
*
* 提供响应式布局所需的所有工具和值
* 自动响应屏幕尺寸变化
*/
import { useMemo } from 'react';
import { useWindowDimensions, PixelRatio } from 'react-native';
import {
BREAKPOINTS,
type DeviceSize,
scaleWidth,
scaleHeight,
scale,
scaleFont,
moderateScale,
widthPercent,
heightPercent,
getGridColumns,
getGridItemWidth,
} from '@/src/utils/responsive';
/**
* 响应式 Hook 返回值类型
*/
export interface ResponsiveValues {
// 屏幕尺寸
width: number;
height: number;
// 设备类型
deviceSize: DeviceSize;
isExtraSmall: boolean;
isSmall: boolean;
isMedium: boolean;
isLarge: boolean;
isTablet: boolean;
// 缩放函数
sw: (size: number) => number;
sh: (size: number) => number;
s: (size: number) => number;
sf: (size: number, factor?: number) => number;
ms: (size: number, factor?: number) => number;
wp: (percent: number) => number;
hp: (percent: number) => number;
// 布局工具
horizontalPadding: number;
maxContentWidth: number;
gridColumns: (minItemWidth: number, gap?: number) => number;
gridItemWidth: (columns: number, gap?: number) => number;
// 预设尺寸
spacing: {
xxs: number;
xs: number;
sm: number;
md: number;
lg: number;
xl: number;
xxl: number;
xxxl: number;
};
fontSize: {
xs: number;
sm: number;
md: number;
lg: number;
xl: number;
xxl: number;
xxxl: number;
display: number;
};
iconSize: {
xs: number;
sm: number;
md: number;
lg: number;
xl: number;
xxl: number;
};
borderRadius: {
xs: number;
sm: number;
md: number;
lg: number;
xl: number;
xxl: number;
full: number;
};
}
/**
* 响应式设计 Hook
*
* @returns 响应式工具和值
*
* @example
* ```tsx
* function MyComponent() {
* const { sw, sf, spacing, isSmall, deviceSize } = useResponsive();
*
* return (
* <View style={{
* padding: spacing.md,
* width: sw(300),
* }}>
* <Text style={{ fontSize: sf(16) }}>
* {isSmall ? '小屏模式' : '正常模式'}
* </Text>
* </View>
* );
* }
* ```
*/
export function useResponsive(): ResponsiveValues {
const { width, height } = useWindowDimensions();
return useMemo(() => {
// 设计稿基准宽度
const DESIGN_WIDTH = 375;
const DESIGN_HEIGHT = 812;
const MIN_SCALE = 0.8;
const MAX_SCALE = 1.4;
// 计算缩放比例
const widthScale = Math.min(Math.max(width / DESIGN_WIDTH, MIN_SCALE), MAX_SCALE);
const heightScale = Math.min(Math.max(height / DESIGN_HEIGHT, MIN_SCALE), MAX_SCALE);
const minScale = Math.min(widthScale, heightScale);
// 缩放函数
const sw = (size: number) => Math.round(size * widthScale);
const sh = (size: number) => Math.round(size * heightScale);
const s = (size: number) => Math.round(size * minScale);
const sf = (size: number, factor: number = 1) => {
const scaledSize = size * widthScale * factor;
const minSize = size * 0.85;
const maxSize = size * 1.3;
const clampedSize = Math.min(Math.max(scaledSize, minSize), maxSize);
return Math.round(PixelRatio.roundToNearestPixel(clampedSize));
};
const ms = (size: number, factor: number = 0.5) => {
const scaleDiff = widthScale - 1;
return Math.round(size + scaleDiff * size * factor);
};
const wp = (percent: number) => Math.round((width * percent) / 100);
const hp = (percent: number) => Math.round((height * percent) / 100);
// 设备类型判断
const deviceSize: DeviceSize = (() => {
Iif (width < BREAKPOINTS.xs) return 'xs';
Iif (width < BREAKPOINTS.sm) return 'xs';
Iif (width < BREAKPOINTS.md) return 'sm';
Iif (width < BREAKPOINTS.lg) return 'md';
Eif (width < BREAKPOINTS.xl) return 'lg';
if (width < BREAKPOINTS.xxl) return 'xl';
return 'xxl';
})();
const isExtraSmall = width < BREAKPOINTS.sm;
const isSmall = width < BREAKPOINTS.md;
const isMedium = width >= BREAKPOINTS.md && width < BREAKPOINTS.lg;
const isLarge = width >= BREAKPOINTS.lg && width < BREAKPOINTS.xl;
const isTablet = width >= BREAKPOINTS.xl;
// 水平内边距
const horizontalPadding = (() => {
Iif (isExtraSmall) return 12;
Iif (isSmall) return 16;
Iif (isTablet) return 24;
return 16;
})();
// 最大内容宽度
const maxContentWidth = isTablet ? Math.min(width - 64, 768) : width;
// 网格计算
const gridColumns = (minItemWidth: number, gap: number = 16) => {
const availableWidth = width - horizontalPadding * 2;
const columns = Math.floor((availableWidth + gap) / (minItemWidth + gap));
return Math.max(1, columns);
};
const gridItemWidth = (columns: number, gap: number = 16) => {
const availableWidth = width - horizontalPadding * 2;
const totalGap = gap * (columns - 1);
return Math.floor((availableWidth - totalGap) / columns);
};
// 预设间距
const spacing = {
xxs: sw(2),
xs: sw(4),
sm: sw(8),
md: sw(12),
lg: sw(16),
xl: sw(20),
xxl: sw(24),
xxxl: sw(32),
};
// 预设字体大小
const fontSize = {
xs: sf(10),
sm: sf(12),
md: sf(14),
lg: sf(16),
xl: sf(18),
xxl: sf(20),
xxxl: sf(24),
display: sf(28),
};
// 预设图标大小
const iconSize = {
xs: ms(12, 0.3),
sm: ms(16, 0.3),
md: ms(20, 0.3),
lg: ms(24, 0.3),
xl: ms(28, 0.3),
xxl: ms(32, 0.3),
};
// 预设圆角
const borderRadius = {
xs: sw(4),
sm: sw(8),
md: sw(12),
lg: sw(16),
xl: sw(20),
xxl: sw(24),
full: 9999,
};
return {
width,
height,
deviceSize,
isExtraSmall,
isSmall,
isMedium,
isLarge,
isTablet,
sw,
sh,
s,
sf,
ms,
wp,
hp,
horizontalPadding,
maxContentWidth,
gridColumns,
gridItemWidth,
spacing,
fontSize,
iconSize,
borderRadius,
};
}, [width, height]);
}
/**
* 响应式值选择器 Hook
*
* @param values 不同设备尺寸的值
* @returns 当前设备对应的值
*
* @example
* ```tsx
* function MyComponent() {
* const columns = useResponsiveValue({
* xs: 1,
* sm: 2,
* md: 3,
* lg: 4,
* default: 2,
* });
*
* return <Grid columns={columns} />;
* }
* ```
*/
export function useResponsiveValue<T>(values: Partial<Record<DeviceSize, T>> & { default: T }): T {
const { deviceSize } = useResponsive();
return values[deviceSize] ?? values.default;
}
/**
* 响应式样式 Hook
*
* 根据设备尺寸返回不同的样式对象
*
* @example
* ```tsx
* function MyComponent() {
* const styles = useResponsiveStyles({
* container: {
* xs: { padding: 8, flexDirection: 'column' },
* md: { padding: 16, flexDirection: 'row' },
* default: { padding: 12 },
* },
* });
*
* return <View style={styles.container} />;
* }
* ```
*/
export function useResponsiveStyles<
T extends Record<string, Record<string, unknown>>,
>(styleDefinitions: {
[K in keyof T]: Partial<Record<DeviceSize, T[K]>> & { default: T[K] };
}): T {
const { deviceSize } = useResponsive();
return useMemo(() => {
const result = {} as T;
for (const key in styleDefinitions) {
const definition = styleDefinitions[key];
result[key] = (definition[deviceSize] ?? definition.default) as T[typeof key];
}
return result;
}, [deviceSize, styleDefinitions]);
}
export default useResponsive;
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