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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | 1x 3x 3x 1x 2x 1x 1x 3x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import React, { forwardRef, memo } from 'react'
import PropTypes from 'prop-types'
import {
View,
Image,
NativeModules,
requireNativeComponent,
ViewPropTypes,
StyleSheet,
} from 'react-native'
const FastImageViewNativeModule = NativeModules.FastImageView
function FastImageBase({
source,
tintColor,
onLoadStart,
onProgress,
onLoad,
onError,
onLoadEnd,
style,
children,
fallback,
forwardedRef,
...props
}) {
const resolvedSource = Image.resolveAssetSource(source)
if (fallback) {
return (
<View style={[styles.imageContainer, style]} ref={forwardedRef}>
<Image
{...props}
tintColor={tintColor}
style={StyleSheet.absoluteFill}
source={resolvedSource}
onLoadStart={onLoadStart}
onProgress={onProgress}
onLoad={onLoad}
onError={onError}
onLoadEnd={onLoadEnd}
/>
{children}
</View>
)
}
return (
<View style={[styles.imageContainer, style]} ref={forwardedRef}>
<FastImageView
{...props}
tintColor={tintColor}
style={StyleSheet.absoluteFill}
source={resolvedSource}
onFastImageLoadStart={onLoadStart}
onFastImageProgress={onProgress}
onFastImageLoad={onLoad}
onFastImageError={onError}
onFastImageLoadEnd={onLoadEnd}
/>
{children}
</View>
)
}
const FastImageMemo = memo(FastImageBase)
const FastImage = forwardRef((props, ref) => (
<FastImageMemo forwardedRef={ref} {...props} />
))
FastImage.displayName = 'FastImage'
const styles = StyleSheet.create({
imageContainer: {
overflow: 'hidden',
},
})
FastImage.resizeMode = {
contain: 'contain',
cover: 'cover',
stretch: 'stretch',
center: 'center',
}
FastImage.priority = {
// lower than usual.
low: 'low',
// normal, the default.
normal: 'normal',
// higher than usual.
high: 'high',
}
FastImage.cacheControl = {
// Ignore headers, use uri as cache key, fetch only if not in cache.
immutable: 'immutable',
// Respect http headers, no aggressive caching.
web: 'web',
// Only load from cache.
cacheOnly: 'cacheOnly',
}
FastImage.preload = sources => {
FastImageViewNativeModule.preload(sources)
}
FastImage.defaultProps = {
resizeMode: FastImage.resizeMode.cover,
}
const FastImageSourcePropType = PropTypes.shape({
uri: PropTypes.string,
headers: PropTypes.objectOf(PropTypes.string),
priority: PropTypes.oneOf(Object.keys(FastImage.priority)),
cache: PropTypes.oneOf(Object.keys(FastImage.cacheControl)),
})
FastImage.propTypes = {
...ViewPropTypes,
source: PropTypes.oneOfType([FastImageSourcePropType, PropTypes.number]),
tintColor: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
onLoadStart: PropTypes.func,
onProgress: PropTypes.func,
onLoad: PropTypes.func,
onError: PropTypes.func,
onLoadEnd: PropTypes.func,
fallback: PropTypes.bool,
}
const FastImageView = requireNativeComponent('FastImageView', FastImage, {
nativeOnly: {
onFastImageLoadStart: true,
onFastImageProgress: true,
onFastImageLoad: true,
onFastImageError: true,
onFastImageLoadEnd: true,
},
})
export default FastImage
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