react-native-dynamic-styles

an easy way to create dynamic styles for react-native/react-native-web apps

Install

npm install react-native-dynamic-style

Declare Styles

• static styles

const dynamicStyles = DynamicStyleSheet.create({
    container: {
        width: 100
    }
});

• relative value

let constider on minimum screen (width: 375) the font size is 12

and on the maximum screen (width: 1440) the font size is 35

the relative font size will be calculated between those two values ex:

 375 --------- width --------- 1440

                ^
                |
                v

 12 ---- relative fontSize --- 35

for this to work you must pass minWidth and maxWidth to useDynamicStyles

const styles = useDynamicStyles(dynamicStyles, { minWidth: 375, maxWidth: 1440 })

const dynamicStyles = DynamicStyleSheet.create({
    text: {
        fontSize: [12, 35]
    }
});

• breakpoints

  • on proberty

    const dynamicStyles = DynamicStyleSheet.create({
        container: {
            width: {
                xs: 20,
                s: 30,
                m: 40,
                l: 50,
                xl: 60,
                xxl: 70
            }
        }
    });

  • on style

    const dynamicStyles = DynamicStyleSheet.create({
        container: {
            xs: {
                width: 20
            },
            s: {
                width: 30
            },
            m: {
                width: 40
            },
            l: {
                width: 50
            },
            xl: {
                width: 60
            },
            xxl: {
                width: 70
            }
        }
    });

  • combine with proberties

    const dynamicStyles = DynamicStyleSheet.create({
        container: {
            width: {
                xs: 20,
                s: 30,
            },
            m: {
                width: 40
            }
        }
    });

• custom function

const dynamicStyles = DynamicStyleSheet.create({
    container: {
        width: ({
            width,
            height,
            isExtraSmallAndUp,
            isExtraSmall,
            isSmallAndUp,
            isSmall,
            isSmallAndDown,
            isMediumAndUp,
            isMedium,
            isMediumAndDown,
            isLargeAndUp,
            isLarge,
            isLargeAndDown,
            isExtraLargeAndUp,
            isExtraLarge,
            isExtraLargeAndDown,
            isExtraExtraLarge,
            isExtraExtraLargeAndDown,
        }) => isSmallAndUp ? 100 : 200
    }
});

use styles

after declaring the styles you can use them by calling this hook

const styles = useDynamicStyles(dynamicStyles)

hooks

• useBreakpoints

in case you want to customize the components instead of styles, you can use this hook

const {
    width,
    height,
    isExtraSmallAndUp,
    isExtraSmall,
    isSmallAndUp,
    isSmall,
    isSmallAndDown,
    isMediumAndUp,
    isMedium,
    isMediumAndDown,
    isLargeAndUp,
    isLarge,
    isLargeAndDown,
    isExtraLargeAndUp,
    isExtraLarge,
    isExtraLargeAndDown,
    isExtraExtraLarge,
    isExtraExtraLargeAndDown,
} = useBreakpoints()