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Understanding Styling in React Native
Explore the best ways to style a React Native application
If you are just started with React Native or even you are experienced with it, you may find the styling a little bit challenging for the first time. that happens when you come especially from the web background and when you try to write React Native style as you usually do when you write CSS on the web and you find out what you expected. the method that React Native use for styling use CSS properties and it’s actually not the same as normal CSS. anyway, we are going to see how we do styling in React Native, in addition, to React Native style method styling method, we will explore the different ways to style a React Native application.
React Native style method
React Native give us two powerful ways by default to style our application :
Style props
You can add styling to your component using style props you simply add style props to your element it accepts an object of properties.
import React, {Component} from 'react';
import {Platform, StyleSheet, Text, View} from 'react-native';
export default class App extends Component<Props> {
render() {
return (
<View style={{flex:1,justifyContent:"center",backgroundColor:"#fff", alignItems:"center"}}>
<View style={{width:200,height:150,backgroundColor:"red",padding:10}}>
<Text style={{fontSize:20, color:"#666"}}>Styled with style props</Text>
</View>
</View>
);
}
}
If you look at our code, we use the CSS properties with the capital letter, notice that some properties are not supported in react-native, an error will throw when you try to use any unsupported property, CSS3 animations are not supported instead React Native leave that to the animation API
React Native use Flexbox for layout, it’s a great tool to define the layout of your React Native app, elsewhere it’s not working as the same as in CSS but genuinely it’s easy to use and flexible.
import React, {Component} from 'react';
import { Text, View} from 'react-native';
export default class App extends Component<Props> {
render() {
return (
<View style={{flex:1,justifyContent:"center",backgroundColor:"#fff", alignItems:"stretch"}}>
<View style={{flex:1,backgroundColor:"red"}}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
<View style={{flex:1,backgroundColor:"blue"}}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
<View style={{flex:1,backgroundColor:"purple"}}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
<View style={{flex:1,backgroundColor:"orange"}}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
</View>
);
}
}
React native flexbox is a great way to deal with the layout manipulation it so easy to design your layout but you need some basic understanding of flexbox to get your head it, you can check this great article for a better understanding.
Using StyleSheet
if you have a large code base or you want to set many properties to your elements, writing our styling rules directly inside style props will make our code more complex that’s why React Native give us another way that let us write a concise code using StyleSheet method:
First, make sure to import StyleSheet from react-native
import { StyleSheet} from 'react-native';
And try to assign some style properties using create method that takes an object of properties.
const styles = StyleSheet.create({
container: {
flex:1,
justifyContent:"center",
backgroundColor:"#fff",
alignItems:"stretch"
},
title: {
fontSize:20,
color:"#fff"
},
item1: {
backgroundColor:"orange",
flex:1
},
item2: {
backgroundColor:"purple",
flex:1
},
item3: {
backgroundColor:"yellow",
flex:1
},
item4: {
backgroundColor:"red",
flex:1
},
});
And then we pass the styles object to our component via the style props:
<View style={styles.container}>
<View style={styles.item1}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
<View style={styles.item2}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
<View style={styles.item3}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
<View style={styles.item4}>
<Text style={{fontSize:20, color:"#fff"}}>Item number 1</Text>
</View>
</View>
Our code looks more concise with StyleSheet method and the result still the same:
The styling method that React Native use has really great features that allow as to do some dynamic styling but it’s limited especially when it comes to applying some CSS properties that aren’t supported by React Native, for example, applying box-shadow to your components you may have to do the following :
const Card=()=>(
<View style={styles.card}>
<Text>Hello!</Text>
</View>
)
//our style
const styles=StyleSheer.create({
card:{
width:100,
height:120,
shadowColor: '#000000',
shadowOffset: {
width: 0,
height: 3
},
shadowRadius: 5,
shadowOpacity: 1.0}
})
Whereas if we have to do the same and adding shadow in CSS:
.card{
width:100px,
height:120px,
box-shadow:0 0 5 #000000;
}
It’s easier to do it with CSS, we all would love to the same in React native, unfortunately, we can’t write CSS directly in React Native. but no worries the good news is styled-component support React Native 💣
styled-component in React Native
Yes, you can use styled-component with React native so you can write your styles in React Native as you write normal CSS. and it’s easy to include it in your project and it doesn’t need any linking just run this following command inside the root directory of your app to install it:
yarn add styled-components
And then simply start using it in your components:
import React, {Component} from 'react';
import { StyleSheet,Text, View} from 'react-native';
import styled from 'styled-components'
const Container=styled.View`
flex:1;
padding:50px 0;
justify-content:center;
background-color:#f4f4f4;
align-items:center
`
const Title=styled.Text`
font-size:20px;
text-align:center;
color:red;
`
const Item=styled.View`
flex:1;
border:1px solid #ccc;
margin:2px 0;
border-radius:10px;
box-shadow:0 0 10px #ccc;
background-color:#fff;
width:80%;
padding:10px;
`
export default class App extends Component {
render() {
return (
<Container>
<Item >
<Title >Item number 1</Title>
</Item>
<Item >
<Title >Item number 2</Title>
</Item>
<Item >
<Title >Item number 3</Title>
</Item>
<Item >
<Title >Item number 4</Title>
</Item>
</Container>
);
}
}
So cool 😃. now you can totally write CSS with React Native and we give that to styled-components, I prefer to use styled-components to style my React Native elements the day since I found out that they support React Native it gives me more freedom to make the style I want so easily and you better use styled-components from now and the get the benefits of CSS to make nice UI it makes your code cleaner, you can separate your styles to a single file far from your components that will make your code more organized. in another hand you can use the great features that styled-components provide us such as theming and passing props so you can make a dynamic style like the following:
import React, {Component} from 'react';
import { StyleSheet,Text, View} from 'react-native';
import styled from 'styled-components'
const Container=styled.View`
flex:1;
padding:50px 0;
justify-content:center;
background-color:#f4f4f4;
align-items:center
`
const Title=styled.Text`
font-size:20px;
text-align:center;
color:red;
`
const Item=styled.View`
flex:1;
border:1px solid #ccc;
margin:2px 0;
border-radius:10px;
box-shadow:0 0 10px #ccc;
height:200px;
// execute a specific style based on the props
background-color:${props=>props.transparent?"red":"blue"};
width:80%;
padding:10px;
`
const Shape=styled.View`
clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
`
export default class App extends Component {
render() {
return (
<Container>
<Item transparent>{/*pass the props to the components*/}
<Title >Item number 1</Title>
</Item>
<Item primary>
<Title >Item number 1</Title>
</Item>
<Item transparent>
<Title >Item number 1</Title>
</Item>
<Item primary>
<Title >Item number 1</Title>
</Item>
</Container>
);
}
}
And here the result:
So awesome 💪!!
Sometimes you may want to draw some complex shapes that include circles and some specific style or gradient backgrounds for example (CSS gradient background not supported in React Native). you might think of using some methods that CSS provide like clip-path or any other method that allows you to make complex shapes in CSS, unfortunately, those methods are not supported in React Native at this time even if you use styled-components that lets you use the CSS properties into React Native at this situation, we have to use some alternative solutions like using SVG
Using react-native-svg to draw specific shapes
React Native community brings react-native-svg that allows you to use the SVG in React Native. you can add it to your projectusing yarn or npm:
// using yarn
yarn add react-native
// npm
npm i react-native
And then make sure to link it by running the following command line:
react-native link react-native-svg
And now let’s start something with it:
/**
* Sample React Native App
* https://github.com/facebook/react-native
*
* @format
* @flow
* @lint-ignore-every XPLATJSCOPYRIGHT1
*/
import React, { Component } from "react";
import { StyleSheet, Text, View } from "react-native";
import styled from "styled-components";
import Svg, {
Circle,
Ellipse,
G,
TSpan,
TextPath,
Path,
Polygon,
Polyline,
Line,
Rect,
Use,
Image,
Symbol,
Defs,
LinearGradient,
RadialGradient,
Stop,
ClipPath,
Pattern,
Mask
} from "react-native-svg";
const Container = styled.View`
flex: 1;
padding: 50px 0;
justify-content: center;
background-color: #f4f4f4;
align-items: center;
`;
const Title = styled.Text`
font-size: 20px;
text-align: center;
color: red;
`;
const Item = styled.View`
flex: 1;
border: 1px solid #ccc;
margin: 2px 0;
border-radius: 10px;
box-shadow: 0 0 10px #ccc;
height: 200px;
background-color: ${props => (props.transparent ? "red" : "blue")};
width: 80%;
padding: 10px;
`;
export default class App extends Component {
render() {
return (
<Container>
<Svg height="150" width="300">
<Defs>
<LinearGradient id="grad" x1="0" y1="0" x2="170" y2="0">
<Stop offset="0" stopColor="rgb(255,255,0)" stopOpacity="0" />
<Stop offset="1" stopColor="red" stopOpacity="1" />
</LinearGradient>
</Defs>
<Ellipse cx="150" cy="75" rx="85" ry="55" fill="url(#grad)" />
</Svg>
<Svg height="100" width="100">
<Defs>
<RadialGradient
id="grad"
cx="50%"
cy="50%"
rx="50%"
ry="50%"
fx="50%"
fy="50%"
gradientUnits="userSpaceOnUse"
>
<Stop offset="0%" stopColor="#ff0" stopOpacity="1" />
<Stop offset="100%" stopColor="#00f" stopOpacity="1" />
</RadialGradient>
<ClipPath id="clip">
<G scale="0.9" x="10">
<Circle cx="40" cy="30" r="20" />
<Ellipse cx="60" cy="70" rx="20" ry="10" />
<Rect x="65" y="15" width="50" height="50" />
<Polygon points="20,60 20,80 50,70" />
<Text
x="50"
y="30"
fontSize="32"
fonWeight="bold"
textAnchor="middle"
scale="1.2"
>
Q
</Text>
</G>
</ClipPath>
</Defs>
<Rect
x="0"
y="0"
width="100"
height="100"
fill="url(#grad)"
clipPath="url(#clip)"
/>
</Svg>
<Svg height="100" width="300">
<Defs>
<G id="shape">
<G>
<Circle cx="50" cy="50" r="50" />
<Rect x="50" y="50" width="60" height="50" />
<Circle cx="50" cy="50" r="5" fill="#c00" />
</G>
</G>
</Defs>
<Use href="#shape" x="20" y="0" />
<Use href="#shape" x="170" y="0" />
</Svg>
</Container>
);
}
}
Examples from react-native-svg docs
The examples above are from react-native-svg docs
As you see you can go so far with react-native-svg in making specific shapes and gradient backgrounds and the things you usually do with SVG. you can check the official docs to see the available options.
Wrapping up
You can still use the React Native style method to make what you need but it remains complex when we want to make some complex styles so you need to use some alternative tools like react-native-svg to do that, for normal styling I like to use styled components it makes doing things easier for me and I hope the React Native community bring more supports of other style methods that will give us the freedom of making things easily
#react-native #mobile-apps #react #javascript
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How native is React Native? | React Native vs Native App Development
If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?
In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.
A brief introduction to React Native
Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.
React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.
Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.
Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.
The popularity of React Native comes from its advantages. Some of its advantages are as follows:
- Performance: It delivers optimal performance.
- Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
- UI design: React Native enables you to design simple and responsive UI for your mobile app.
- 3rd party plugins: This framework supports 3rd party plugins.
- Developer community: A vibrant community of developers support React Native.
Why React Native is fundamentally different from earlier hybrid frameworks
Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.
React Native is very close to native. Consider the following aspects as described on the React Native website:
- Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
- Near-native user experience: React Native provides several native components, and these are platform agnostic.
- The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
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Hire Dedicated React Native Developer
Have you ever thought of having your own app that runs smoothly over multiple platforms?
React Native is an open-source cross-platform mobile application framework which is a great option to create mobile apps for both Android and iOS. Hire Dedicated React Native Developer from top React Native development company, HourlyDeveloper.io to design a spectacular React Native application for your business.
Consult with experts:- https://bit.ly/2A8L4vz
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Hire Dedicated React Native Developers - WebClues Infotech
Being one of the emerging frameworks for app development the need to develop react native apps has increased over the years.
Looking for a react native developer?
Worry not! WebClues infotech offers services to Hire React Native Developers for your app development needs. We at WebClues Infotech offer a wide range of Web & Mobile App Development services based o your business or Startup requirement for Android and iOS apps.
WebClues Infotech also has a flexible method of cost calculation for hiring react native developers such as Hourly, Weekly, or Project Basis.
Want to get your app idea into reality with a react native framework?
Get in touch with us.
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Factors affecting the cost of hiring a React Native developer in USA - TopDevelopers.co
Want to develop app using React Native? Here are the tips that will help to reduce the cost of react native app development for you.
Cost is a major factor in helping entrepreneurs take decisions about investing in developing an app and the decision to hire react native app developers in USA can prove to be fruitful in the long run. Using react native for app development ensures a wide range of benefits to your business. Understanding your business and working on the aspects to strengthen business processes through a cost-efficient mobile app will be the key to success.
#best react native development companies from the us #top react native app development companies in usa #cost of hiring a react native developer in usa #top-notch react native developer in usa #best react native developers usa #react native
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How much does it cost to develop a React Native mobile app?
React Native allows developers to develop mobile apps that have compatibility with Android, iOS & other operating systems. Due to the features like Native-like functionality and single code reusability and the access of various frameworks in the market, React Native has excelled as the most suitable framework for cross-platform mobile app development.
Why Do Businesses Prefer React Native App Development?
React Native is integrated with JS library that works as the fundamental for developing the app UI. Most businesses choose for developing React Native apps just due to their cross-platform & open-source features. A few further reasons why entrepreneurs & developers choose React Native app development include:
• Lowered Expedition Time
• Simple UI
• Cross-Platform and Code Sharing
• Lesser Workforce and Resources
• Community Assistance
• In-Built Elements and Reusable Codes
• Hot Reload
• JavaScript as Programming Language
• Easy to Execute Updates
Factors That Decide Cost of React Native App Development
If you are an entrepreneur or start-up and looking for cost-effective app development, React Native is one of the ideal options available out there.
• App’s UI/UX Design
• User Authorization
• App Complexity and Functionality
• App Development Team
• App Maintenance
• App Add-ons
• App Distribution
• Location of Development Company
• App Category
React Native cost depends widely on the complexity of a project or the app requirements. The price may also vary based on business requirements. React Native app development per hour can cost from $20 and $30 per hour in India. It can vary as per different locations.
Is React Native a good choice for mobile apps development?
Yes, React Native is the best choice for mobile app development as React apps are faster to develop and it offers better quality than hybrid apps. Additionally, React Native is a mature cross-platform framework.
Best React Native App Development Agency
AppClues Infotech is a leading React Native App Development Company in USA that build robust & innovative mobile app as per your specific business needs. They have a dedicated team of designers and programmers help to make a perfect mobile app.
If you have any mobile app development project in mind get in touch with AppClues Infotech and get the best solution for your business.
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