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Toast.js
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107 lines (89 loc) · 1.74 KB
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import React,{
Component,
PropTypes,
View,
StyleSheet,
Text,
Dimensions,
Animated
} from 'react-native';
const { height, width } = Dimensions.get('window');
const toastWidth = width * 0.7;
const defaultText = 'Toast';
const defaultTimeout = 2000;
class Toast extends Component {
static propTypes = {
duration: PropTypes.number
};
static defaultProps = {
duration: 300
};
constructor(props) {
super(props);
this.state = {
fadeAnim: new Animated.Value(0.4),
show: false,
text: defaultText,
timeout: defaultTimeout
};
}
componentWillUnmount() {
clearTimeout(this.timeout);
}
show(text = defaultText, timeout = defaultTimeout) {
const { duration } = this.props;
Animated.timing(this.state.fadeAnim, {
toValue: 1,
duration: duration
}).start();
this.setState({
show: true,
text,
timeout
});
this.timeout = setTimeout(()=> {
Animated.timing(this.state.fadeAnim, {
toValue: 0,
duration: duration
}).start(()=> {
this.setState({
show: false
});
});
}, timeout - duration);
}
render() {
const opacity = {
opacity: this.state.fadeAnim
};
if (!this.state.show) return null;
return (
<Animated.View style={[styles.container, this.props.style, opacity]}>
<Text style={styles.text}>
{this.state.text}
</Text>
</Animated.View>
)
}
}
const styles = StyleSheet.create({
container: {
position: 'absolute',
backgroundColor: 'rgba(0,0,0,0.8)',
borderRadius: 5,
flexDirection: 'row',
justifyContent: 'center',
alignItems: 'center',
width: toastWidth,
left: (width - toastWidth) / 2,
top: (height - 60) / 2,
padding: 20
},
text: {
flex: 1,
color: 'white',
fontSize: 16,
textAlign: 'center'
}
});
export default Toast;