137 lines
2.7 KiB
TypeScript
137 lines
2.7 KiB
TypeScript
import React from 'react';
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import { Animated, Modal, StyleSheet, View } from 'react-native';
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import { withTheme } from '../theme';
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import { themes } from '../constants/colors';
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const styles = StyleSheet.create({
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container: {
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flex: 1,
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alignItems: 'center',
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justifyContent: 'center'
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},
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image: {
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width: 100,
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height: 100,
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resizeMode: 'contain'
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}
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});
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interface ILoadingProps {
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visible: boolean;
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theme?: string;
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}
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class Loading extends React.PureComponent<ILoadingProps, any> {
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state = {
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scale: new Animated.Value(1),
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opacity: new Animated.Value(0)
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};
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private opacityAnimation: any;
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private scaleAnimation: any;
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componentDidMount() {
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const { opacity, scale } = this.state;
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const { visible } = this.props;
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this.opacityAnimation = Animated.timing(opacity, {
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toValue: 1,
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duration: 200,
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useNativeDriver: true
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});
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this.scaleAnimation = Animated.loop(
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Animated.sequence([
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Animated.timing(scale, {
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toValue: 0,
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duration: 1000,
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useNativeDriver: true
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}),
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Animated.timing(scale, {
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toValue: 1,
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duration: 1000,
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useNativeDriver: true
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})
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])
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);
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if (visible) {
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this.startAnimations();
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}
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}
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componentDidUpdate(prevProps: any) {
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const { visible } = this.props;
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if (visible && visible !== prevProps.visible) {
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this.startAnimations();
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}
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}
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componentWillUnmount() {
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if (this.opacityAnimation && this.opacityAnimation.stop) {
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this.opacityAnimation.stop();
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}
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if (this.scaleAnimation && this.scaleAnimation.stop) {
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this.scaleAnimation.stop();
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}
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}
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startAnimations() {
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if (this.opacityAnimation && this.opacityAnimation.start) {
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this.opacityAnimation.start();
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}
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if (this.scaleAnimation && this.scaleAnimation.start) {
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this.scaleAnimation.start();
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}
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}
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render() {
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const { opacity, scale } = this.state;
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const { visible, theme } = this.props;
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const scaleAnimation = scale.interpolate({
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inputRange: [0, 0.5, 1],
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outputRange: [1, 1.1, 1]
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});
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const opacityAnimation = opacity.interpolate({
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inputRange: [0, 1],
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outputRange: [0, themes[theme!].backdropOpacity],
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extrapolate: 'clamp'
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});
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return (
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<Modal visible={visible} transparent onRequestClose={() => {}}>
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<View style={styles.container} testID='loading'>
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<Animated.View
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style={[
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{
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// @ts-ignore
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...StyleSheet.absoluteFill,
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backgroundColor: themes[theme!].backdropColor,
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opacity: opacityAnimation
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}
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]}
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/>
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<Animated.Image
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source={require('../static/images/logo.png')}
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style={[
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styles.image,
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{
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transform: [
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{
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scale: scaleAnimation
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}
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]
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}
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]}
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/>
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</View>
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</Modal>
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);
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}
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}
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export default withTheme(Loading);
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