LoadingIndicator.js
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'use strict';
import React, {Component} from 'react'
import {
StyleSheet,
View,
Text,
Dimensions,
ActivityIndicator,
Platform,
} from 'react-native';
import PropTypes from 'prop-types';
export default class LoadingIndicator extends Component {
static propTypes = {
isVisible: PropTypes.bool.isRequired,
size: PropTypes.string,
color: PropTypes.string,
overlayWidth: PropTypes.number,
overlayHeight: PropTypes.number,
overlayColor: PropTypes.string,
text: PropTypes.string,
textColor: PropTypes.string,
textFontSize: PropTypes.number,
};
static defaultProps = {
isDismissible: false,
overlayWidth: 100,
overlayHeight: 100,
overlayColor: 'rgba(0,0,0,0.6)',
size: (Platform.OS === 'ios') ? 'large' : 'small',
color: (Platform.OS === 'ios') ? 'white' : 'gray',
text: '加载中...',
textColor: '#eeeeee',
textFontSize: 12,
};
render() {
if (!this.props.isVisible) {
return null;
}
let customStyles = StyleSheet.create({
overlay: {
alignItems: 'center',
justifyContent: 'center',
borderRadius: 10,
backgroundColor: this.props.overlayColor,
width: this.props.overlayWidth,
height: this.props.overlayHeight,
},
text: {
color: this.props.textColor,
fontSize: this.props.textFontSize,
marginTop: 8,
},
});
return (
<View style={styles.container}>
<View style={customStyles.overlay}>
<ActivityIndicator color={this.props.color} size={this.props.size}/>
<Text style={customStyles.text}>{this.props.text}</Text>
</View>
</View>
);
}
}
let {width, height} = Dimensions.get('window');
let navbarHeight = (Platform.OS === 'android') ? 50 : 64;
const styles = StyleSheet.create({
container: {
position: 'absolute',
backgroundColor: 'transparent',
justifyContent: 'center',
alignItems: 'center',
top: -navbarHeight,
bottom: 0,
left: 0,
right: 0,
},
});