react-native-zoom-view

react-native-zoom-view

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• yarn add react-native-zoom-view
• npm install react-native-zoom-view

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import ViewControl from 'react-native-zoom-view'
const {width,height} = Dimensions.get('window')

<ViewControl
    cropWidth={width}     
    cropHeight={height}
    imageWidth={width}
    imageHeight={height}>
    <Image
	style={{
	    width:width,
	    height:height,
	    resizeMode: 'contain'
	}}
	source={{
	    uri:item
	}}/>
</ViewControl>

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import Swiper from 'react-native-swiper'
import ViewControl from 'react-native-zoom-view'

renderSwiperItemView() {
const imgs = [
    'http://img1.ph.126.net/u1dVCkMgF8qSqqQLXlBFQg==/6631395420169075600.jpg',
    'http://img2.ph.126.net/PqPdn4nhTSXTlPfDE_igJg==/6631322852401020356.jpg',
    'http://img1.ph.126.net/Ta6-WaHwuYMSehnn6Xcmyg==/6631426206490316698.jpg',
    'http://img0.ph.126.net/bCkBoPHS4d32mUJPqBIYrQ==/6631803338979839988.jpg',
    'http://img2.ph.126.net/bkaOfRyDoyddXri0GjpWjA==/6630608169839463386.jpg',
];
return imgs.map((item,i)=>{
    return (
	<ViewControl
	    key={i}
	    cropWidth={width}
	    cropHeight={height}
	    imageWidth={width}
	    imageHeight={height}>
	    <Image
		style={{
		    width:width,
		    height:height,
		    resizeMode: 'contain'
		}}
		source={{
		    uri:item
		}}/>
	</ViewControl>
    )
})
}

render() {
return (
    <Swiper
	loop={false}
	showsPagination={false}>
	{this.renderSwiperItemView()}
    </Swiper>
);
}
    

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Props	Type	Description	DefaultValue
cropWidth(required)	number	operating area width	100
cropHeight(required)	number	operating area height	100
imageWidth(required)	number	picture width	100
imageHeight(required)	number	picture height	100
onClick	()=>void	onClick	()=>{}
panToMove	boolean	allow to move picture with one finger	true
pinchToZoom	boolean	allow scale with two fingers	true
leaveStayTime	number	how many milliseconds after the finger presses to trigger onClick	100
leaveDistance	number	how many finger movement can also trigger onClick	10
horizontalOuterRangeOffset	(offsetX?: number)=>void	horizontal beyond the distance, the parent to do picture switching, you can listen to this function. When this function is triggered, you can do the switch operation	()=>{}
onDragLeft	()=>void	trigger to switch to the left of the graph, the left sliding speed exceeds the threshold when triggered	()=>{}
responderRelease	(vx: number)=>void	let go but do not cancel	()=>{}
maxOverflow	number	maximum sliding threshold	100
longPressTime	number	long press threshold	800
onLongPress	()=>void	on longPress	()=> {}

Reference

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• react-native-image-zoom