Expo LinearGradientGitHub
npm
expo-linear-gradient provides a native React view that transitions between multiple colors in a linear direction.
Platform Compatibility
| Android Device | Android Emulator | iOS Device | iOS Simulator | Web |
|---|---|---|---|---|
Installation
- npx expo install expo-linear-gradientIf you're installing this in a bare React Native app, you should also follow these additional installation instructions.
Usage
import * as React from 'react';
import { StyleSheet, Text, View } from 'react-native';
import { LinearGradient } from 'expo-linear-gradient';
export default function App() {
return (
<View style={styles.container}>
<LinearGradient
// Background Linear Gradient
colors={['rgba(0,0,0,0.8)', 'transparent']}
style={styles.background}
/>
<LinearGradient
// Button Linear Gradient
colors={['#4c669f', '#3b5998', '#192f6a']}
style={styles.button}>
<Text style={styles.text}>Sign in with Facebook</Text>
</LinearGradient>
</View>
);
}
%%placeholder-start%%const styles = StyleSheet.create({ ... }); %%placeholder-end%%const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
justifyContent: 'center',
backgroundColor: 'orange',
},
background: {
position: 'absolute',
left: 0,
right: 0,
top: 0,
height: 300,
},
button: {
padding: 15,
alignItems: 'center',
borderRadius: 5,
},
text: {
backgroundColor: 'transparent',
fontSize: 15,
color: '#fff',
},
});
API
import { LinearGradient } from 'expo-linear-gradient';
Component
LinearGradient
Type: React.Component<LinearGradientProps>
Renders a native view that transitions between multiple colors in a linear direction.
Props
colors
Type: string[]
An array of colors that represent stops in the gradient. At least two colors are required
(for a single-color background, use the style.backgroundColor prop on a View component).
end
Optional • Type: LinearGradientPoint | null
For example, { x: 0.1, y: 0.2 } means that the gradient will end 10% from the left and 20% from the bottom.
On web, this only changes the angle of the gradient because CSS gradients don't support changing the end position.
locations
Optional • Type: number[] | null • Default: []
An array that contains numbers ranging from 0 to 1, inclusive, and is the same length as the colors property.
Each number indicates a color-stop location where each respective color should be located.
If not specified, the colors will be distributed evenly across the gradient.
For example, [0.5, 0.8] would render:
- the first color, solid, from the beginning of the gradient view to 50% through (the middle);
- a gradient from the first color to the second from the 50% point to the 80% point; and
- the second color, solid, from the 80% point to the end of the gradient view.
The color-stop locations must be ascending from least to greatest.
start
Optional • Type: LinearGradientPoint | null
For example, { x: 0.1, y: 0.2 } means that the gradient will start 10% from the left and 20% from the top.
On web, this only changes the angle of the gradient because CSS gradients don't support changing the starting position.
Inherited Props
Types
LinearGradientPoint
An object { x: number; y: number } or array [x, y] that represents the point
at which the gradient starts or ends, as a fraction of the overall size of the gradient ranging
from 0 to 1, inclusive.
| Name | Type | Description |
|---|---|---|
| x | number | A number ranging from |
| y | number | A number ranging from |