react-native-size-matters-pixel3a

A React-Native utility belt for scaling the size your apps UI across different sized devices when building on Pixel 3a. forked from https://github.com/nirsky/react-native-size-matters

Motivation

When developing with react-native, you need to manually adjust your app to look great on variety of different screen sizes. That's a tedious job.
react-native-size-matters provides some simple tooling to make your scaling a whole lot easier.
But the idea of react-native-size-matters is to develop once on a standard ~5" screen mobile device and then simply apply the provided utils. This will make your item's size a little bit different from what you want it to be when building on non standard ~5" screen mobile devices. In react-native-size-matters-pixel3a the standard size is the same with the size of Pixel 3a. This will enable us to build apps on Pixel 3a with no stress. So when the desiner made an button with width: 200 , height: 100 in Pixel 3a you can just style it as width: scale(200) , height: scale(100) and you can get a perfect design on any device!

Installation

npm install --save react-native-size-matters-pixel3a
//or:
yarn add react-native-size-matters-pixel3a

Api

Scaling Functions

import { scale, verticalScale, moderateScale } from './react-native-size-matters-pixel3a';

const Component = props =>
    <View style={{
        width: scale(30),
        height: verticalScale(50),
        padding: moderateScale(5)
    }}/>;

• scale(size: number)
  Will return linear scaled result of the provided size, based on your device's screen width.

• verticalScale(size: number)
  Will return linear scaled result of the provided size, based on your device's screen height.

• moderateScale(size: number, factor?: number)
  Sometimes you don't want to scale everything in a linear manner, that's where moderate scale comes in.
  The cool thing about it is that you can control the resize factor (default is 0.5).
  If normal scale will increase your size by +2X, moderateScale will only increase it by +X, for example:
  ➡️ scale(10) = 20
  ➡️ moderateScale(10) = 15
  ➡️ moderateScale(10, 0.1) = 11

ScaledSheet

import { ScaledSheet } from './react-native-size-matters-pixel3a';

const styles = ScaledSheet.create(stylesObject)

ScaleSheet will take the same stylesObject a regular StyleSheet will take, plus a special (optional) annotation that will automatically apply the scale functions for you:

• <size>@s - will apply scale function on size.
• <size>@vs - will apply verticalScale function on size.
• <size>@ms - will apply moderateScale function with resize factor of 0.5 on size.
• <size>@ms<factor> - will apply moderateScale function with resize factor of factor on size.

Example:

import { ScaledSheet } from './react-native-size-matters-pixel3a';

const styles = ScaledSheet.create({
    container: {
        width: '100@s', // = scale(100)
        height: '200@vs', // = verticalScale(200)
        margin: 5
    },
    row: {
        padding: '10@ms0.3', // = moderateScale(10, 0.3)
        height: '50@ms' // = moderateScale(50)
    }
});