[React Native] Animate Styles of a React Native View with animated.timing

Source: Internet
Author: User

In this lesson we'll use animated.timing to animate the opacity and height of a View in our React Native application. This function has attributes, can set such as easing and duration.

import React, {Component} from ‘react‘;
import {Text, View, StyleSheet, Image, Animated, Easing} from ‘react-native‘; var styles = StyleSheet.create({
    container: {
        backgroundColor: ‘#48BBEC‘,
        paddingBottom: 10 },
    name: {
        alignSelf: ‘center‘,
        fontSize: 21,
        marginTop: 10,
        marginBottom: 5,
        color: ‘white‘ },
    handle: {
        alignSelf: ‘center‘,
        fontSize: 16,
        color: ‘white‘ },
    image: {
        height: 125,
        width: 125,
        borderRadius: 65,
        marginTop: 10,
        alignSelf: ‘center‘ }
}); class Badge extends React.Component {
        super(props); this.state = {
            fadeAnim: new Animated.Value(0),
            bounceAnim: new Animated.Value(0)
        } }
    componentDidMount() { Animated.timing( this.state.fadeAnim,
            {toValue: 1, duration: 2000}
        Animated.timing( this.state.bounceAnim,
            {toValue: 1, duration: 2000, easing: Easing.bounce}
        ).start(); }
    render(){ const animatedTextStyle = {
            opacity: this.state.fadeAnim,
        }; const animateImageStyle = {
            opacity: this.state.bounceAnim
        }; return ( <View style={styles.container}>
                <Animated.Image style={[styles.image, animateImageStyle]} source={{uri: this.props.userInfo.avatar_url}}></Animated.Image>
                <Animated.Text style={[styles.name,animatedTextStyle]}> {this.props.userInfo.name} </Animated.Text>
                <Animated.Text style={[styles.handle, animatedTextStyle]}> {this.props.userInfo.login} </Animated.Text>
            </View> )
} /**
 * Make sure when when user the Badge component, the userInfo object is there
 * @type {{userInfo: *}} */ Badge.propTypes = {
    userInfo: React.PropTypes.object.isRequired


[React Native] Animate Styles of a React Native View with animated.timing

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