ToastView.js
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import React, {Component} from 'react'
import {Animated, Dimensions, StyleSheet, Text, View} from 'react-native'
import {ToastInHeight, ToastInOutDuration} from '../data/Constants'
//import { shadowBlackStyleBottom } from '../util/UiUtil'
const MaxWidthRatio = 0.8
const shadowBlackStyleBottom = {
elevation: 4,
shadowOffset: {
width: 0,
height: -2
},
shadowColor: '#000',
shadowOpacity: 0.4,
shadowRadius: 2
}
export default class ToastView extends Component {
constructor(props) {
super(props)
const {width, height} = Dimensions.get('window')
this.state = {
deviceWidth: width,
deviceHeight: height,
animatedValue1: new Animated.Value(0),
animatedValue2: new Animated.Value(0.2),
}
// React after 17
Dimensions.addEventListener('change', this.onWindowChange);
}
componentDidMount() {
this.onLifeCycleManage()
}
componentWillUnmount() {
if (this.liftCycleAnimated) {
this.liftCycleAnimated.stop()
this.liftCycleAnimated = undefined
}
Dimensions.removeEventListener('change', this.onWindowChange);
}
render() {
const containerStyle = {}
const contentStyle = {
backgroundColor: this.props.backgroundColor,
opacity: this.state.animatedValue2.interpolate({
inputRange: [0, 1, 2],
outputRange: [0, 1, 0]
}),
minWidth: this.props.icon ? this.state.deviceWidth * 0.4 : 0,
maxWidth: this.state.deviceWidth * MaxWidthRatio,
}
if (this.props.position > 0) {
containerStyle.justifyContent = 'flex-start';
containerStyle.top = 40
containerStyle.bottom = 0;
contentStyle.marginTop = this.state.animatedValue1.interpolate({
inputRange: [0, 1],
outputRange: [ToastInHeight / 2, 0]
});
} else if (this.props.position == 0) {
containerStyle.justifyContent = 'center';
containerStyle.top = 0
containerStyle.bottom = 0;
contentStyle.marginTop = this.state.animatedValue1.interpolate({
inputRange: [0, 1],
outputRange: [ToastInHeight, 0]
});
} else if (this.props.position < 0) {
containerStyle.justifyContent = 'flex-end';
containerStyle.top = 0
containerStyle.bottom = 40;
contentStyle.marginBottom = this.state.animatedValue1.interpolate({
inputRange: [0, 1],
outputRange: [0, ToastInHeight / 2]
});
}
let shadowStyle = {};
if (this.props.isShowShadow) shadowStyle = shadowBlackStyleBottom;
return (
<View style={[styles.container, containerStyle]} pointerEvents="none">
<Animated.View style={[styles.content, contentStyle, shadowStyle]}>
{this.props.icon}
<Text style={[styles.text, {color: this.props.textColor}]}>
{this.props.data}
</Text>
</Animated.View>
</View>
)
}
onLifeCycleManage = () => {
if (this.liftCycleAnimated) {
this.liftCycleAnimated.stop()
this.liftCycleAnimated = undefined
}
this.liftCycleAnimated = Animated.sequence([
Animated.parallel([
Animated.timing(
this.state.animatedValue1,
{
toValue: 1,
duration: ToastInOutDuration,
easing: this.props.inEasing,
useNativeDriver: false,
}
),
Animated.timing(
this.state.animatedValue2,
{
toValue: 1,
duration: ToastInOutDuration,
useNativeDriver: false,
}
),
]),
Animated.timing(
this.state.animatedValue2,
{
toValue: 1,
duration: this.props.duration,
useNativeDriver: false,
}
),
Animated.timing(
this.state.animatedValue2,
{
toValue: 2,
duration: ToastInOutDuration,
useNativeDriver: false,
}
)
])
this.liftCycleAnimated.start()
}
onWindowChange = ({window}) => {
const {width, height} = window
if (width != this.state.deviceWidth && height != this.state.deviceHeight) {
this.setState({
deviceWidth: width,
deviceHeight: height
})
}
}
}
const styles = StyleSheet.create({
container: {
alignItems: 'center',
position: 'absolute',
left: 0,
right: 0
},
content: {
borderRadius: 4,
padding: 10,
alignItems: 'center'
},
icon: {},
text: {
fontSize: 16
}
})