使用React Native创建响应式的Echarts组件
import React, { PureComponent } from 'react';
import { View, StyleSheet, Dimensions, Platform } from 'react-native';
import PropTypes from 'prop-types';
import ECharts, { echarts } from 'react-native-echarts';
const { width, height } = Dimensions.get('window');
class ResponsiveEcharts extends PureComponent {
constructor(props) {
super(props);
this.state = {
height: 0,
width: 0,
};
this.onLayout = this.onLayout.bind(this);
}
onLayout(event) {
const { height, width } = event.nativeEvent.layout;
if (this.state.height !== height || this.state.width !== width) {
this.setState({ height, width });
}
}
render() {
const { option } = this.props;
const { height: stateHeight, width: stateWidth } = this.state;
const height = stateHeight || height;
const width = stateWidth || width;
return (
<View style={styles.container} onLayout={this.onLayout}>
<ECharts
ref={(echarts) => { this.echarts = echarts; }}
height={height}
width={width}
option={option}
onChartReady={this.onChartReady}
{...this.props}
/>
</View>
);
}
}
ResponsiveEcharts.propTypes = {
option: PropTypes.object.isRequired,
};
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
});
export default ResponsiveEcharts;
这段代码使用React Native和ECharts创建了一个名为ResponsiveEcharts的组件,该组件能够响应屏幕的宽度和高度变化。它使用了React的生命周期钩子和样式来确保图表能够适应不同的屏幕尺寸。这是一个很好的实践,可以作为创建响应式图表组件的参考。
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