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index.tsx
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index.tsx
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import React, { Component } from 'react'
import { Image as RNImage, ImageProps } from 'react-native'
interface Props extends ImageProps {
width?: number
height?: number
}
class Image extends Component<Props, any> {
constructor(props: Props) {
super(props)
this.state = {
width: 0,
height: 0,
}
}
UNSAFE_componentWillMount() {
const { width, height, source } = this.props
if (typeof source === 'number') {
const info = RNImage.resolveAssetSource(source)
const p = info.width / info.height
this.setState({
width: width || height! * p,
height: height || width! / p,
})
} else {
// @ts-ignore
RNImage.getSize(source.uri, (w, h) => {
const p = w / h
this.setState({
width: width || height! * p,
height: height || width! / p,
})
})
}
}
render() {
return (
// @ts-ignore
<RNImage {...this.props} style={[this.props.style, { height: this.state.height, width: this.state.width }]} />
)
}
}
export default Image