cfdong / react-native-ui-lib

UI Components Library for React Native

react-native-ui-lib

UI Toolset & Components Library for React Native

check out our Docs Site

Latest version support RN44

• Style
• Modifiers
• Assets
• Components
• Helpers

Getting Started

Installation

yarn add react-native-ui-lib

or

npm i --save react-native-ui-lib

Native Dependencies

Some of the components are using these native dependencies, they are not a requirement but will allow you to create better lookings apps (:

• react-native-animatable
• react-native-blur

Usage

This is a quick example of how to use our basic components, modifiers and presets to generate a good looking screen.

import React, {Component} from 'react';
import {View, TextInput, Text, Button} from 'react-native-ui-lib';

export default class Example extends Component {

  render() {
    return (
      <View flex paddingH-25 paddingT-120>
        <Text blue50 text20>Welcome</Text>
        <TextInput text50 placeholder="username" dark10/>
        <TextInput text50 placeholder="password" secureTextEntry dark10/>
        <View marginT-100 center>
          <Button text70 white background-orange30 label="Login"/>
          <Button link text70 orange30 label="Sign Up" marginT-20/>
        </View>
      </View>
    );
  }
}

Style

The base foundation of each UI component is its style. We use basic style presets to define the rules and the style guide we follow.

Our presetes includes: Colors, Typography, Shadows, Border Radius and more..

The UILib already comes with a set of predefined constants and presets.

You can easily use it anywhere in your code as you would have used any other constant value, or as a component modifier.

It's also very easy to define your own presets..

import {Typography, Colors} from 'react-native-ui-lib';

Colors.loadColors({
  pink: '#FF69B4',
  gold: '#FFD700',
});

Typography.loadTypographies({
  h1: {fontSize: 58, fontWeight: '300', lineHeight: 80},
  h2: {fontSize: 46, fontWeight: '300', lineHeight: 64},
});

and so for example, the following line

<Text h1 pink>Hello World</Text>

Will generate this text

It will use the h1 preset for typography and the pink color value we set to style the Text element.

Modifiers

As you probably noticed already, we translate our style presets into modifiers. Modifiers will help you create a stunning UI easily and quickly.

Align Faster

Use our alignment props to quickly position your content without getting confused calculating all these flex rules. left, top, right, bottom, row, center, centerH (Horizontal Center), centerV (Vertical Center), spread

<View left>
  <Button label="Button">
</View>

<View right>
  <Button label="Button">
</View>

<View top>
  <Button label="Button">
</View>

<View bottom>
  <Button label="Button">
</View>

<View center>
  <Button label="Button">
</View>

Spacing & Styling

Same goes here... space, stretch and color in a more readable way.

• [colorKey] (text color), background-[colorKey] <Text pink>...</Text> <View bg-pink>...</View>

• [typographyPresetKey] (text components) <Text h1>...</Text>

• flex, flex-[value]

<View flex> // be default is flex=1
  <View flex-2/>
  <View flex-3/>
  <View flex-4/>
</View>

• padding-[value], paddingL-[value], paddingT-[value], paddingR-[value], paddingB-[value], paddingH-[value], paddingV-[value] <View paddingV-20 paddingH-30>...</View>

• margin-[value], marginL-[value], marginT-[value], marginR-[value], marginB-[value], marginH-[value], marginV-[value] <View marginT-5 marginB-10>...</View>

Check out this example where we use most of these props

Assets

Assets are big part of the whole UI system, whether it's an icon, placeholder or an illustration, we use them everywhere.
Load assets groups and easily render them with the Image component.

import {Assets, Image} from 'react-native-ui-lib';

Assets.loadAssetsGroup('icons', {
  icon1: require('icon1.png'),
  icon2: require('icon2.png'),
  icon3: require('icon3.png'),
});

// or as a nested group to create your own hierarchy
Assets.loadAssetsGroup('illustrations.placeholders', {
  emptyCart: require('emptyCart.png'),
  emptyProduct: require('emptyProduct.png'),
});
Assets.loadAssetsGroup('illustrations.emptyStates.', {
  noMessages: require('noMessages.png'),
  noContacts: require('noContacts.png'),
});

// Use them with the Image component (our Image component)
<Image assetName="icon1"/> // default assetGroup is "icons"
<Image assetName="emptyCart" assetGroup="illustrations.placeholders"/>

// The old fashion way will work as well
<Image source={Assets.icons.icon1}/>

Components (WIP)

• Action Bar
• Action Sheet (cross-platform)
• Avatar
• Badge
• Basic List
• Button
• Card
• Connection Status Bar
• List Item
• State Screen
• Loader Screen
• Page Control
• Picker
• Stepper
• Text
• TextInput
• MaskedInput
• TagsInput

Card

import {Card} from 'react-native-ui-lib';

<Card
  row // control the children flow direction
  borderRadius={12}
  height={150}
  containerStyle={{marginRight: 20}}
  onPress={...}
  enableShadow={true/false}

>
  <Card.Image width={80} imageSource={cardImage} />
  <View>
  ...
  </View>
</Card>

Masked Input

import {MaskedInput} from 'react-native-ui-lib';

<MaskedInput
  renderMaskedText={this.renderTimeText}
  caretHidden
  keyboardType={'numeric'}
  maxLength={4}
/>

renderTimeText(value) {
  const paddedValue = _.padStart(value, 4, '0');
  const hours = paddedValue.substr(0, 2);
  const minutes = paddedValue.substr(2, 2);

  return (
    <Text text20 dark20 center>
      {hours}
      <Text red10>h</Text>
      {minutes}
      <Text red10>m</Text>
    </Text>
  );
}

Tags Input

import {TagsInput} from 'react-native-ui-lib';

<TagsInput
  containerStyle={{marginBottom: 20}}
  placeholder="Enter Tags"
  tags={this.state.tags} // array of strings/objects
  onChangeTags={(tags) => this.setState({tags})}
  getLabel={(tag) => tag.label}
  inputStyle={{fontSize: 22, color: 'blue'}}
  renderTag={(tag, index, shouldMarkTagToRemove) => <View>...</View>}
  hideUnderline={true/false}
/>

Since Android does not support TextInput onKeyPress callback, the feature that removes tags on Backspace won't work. In Order to fix it, follow these instructions:

Update your dependencies in android/app/build.gradle:

dependencies {
  // Add this dependency:
  compile project(":react-native-ui-lib")
}

Update your android/settings.gradle:

include ':react-native-ui-lib'
project(':react-native-ui-lib').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-ui-lib/lib/android')

In your MainApplication.java, add to the getPackages() list:

import com.wix.reactnativeuilib.textinput.TextInputDelKeyHandlerPackage;

@Override
protected List<ReactPackage> getPackages() {
  return Arrays.<ReactPackage>asList(
      // Add this package:
      new TextInputDelKeyHandlerPackage()
    );
}

Helpers

AvatarHelpers

getInitials

usage:

import {AvatarHelper} from 'react-native-ui-lib';

AvatarHelper.getInitials('Lilly Wheeler'); // LW
AvatarHelper.getInitials('Russell Lloyd'); // RL
AvatarHelper.getInitials('Andrew'); // A

Colors

rgba

usage:

import {Colors} from 'react-native-ui-lib';

Colors.rgba('#ff2442', 0.05); // 'rgb(255, 36, 66, 0.05)'
Colors.rgba(44, 224, 112, 0.2); // 'rgb(44, 224, 112, 0.2)'