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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| import * as React from 'react'; | ||
| import { View, Image, ScrollView, Dimensions, StyleSheet } from 'react-native'; | ||
| import { withNavigation } from '@react-navigation/core'; | ||
|
|
||
| @withNavigation | ||
| class NavigationAwareScrollView extends React.Component { | ||
| componentDidMount() { | ||
| this.props.navigation.addListener('willFocus', () => { | ||
| this._isFocused = true; | ||
| }); | ||
|
|
||
| this.props.navigation.addListener('willBlur', () => { | ||
| this._isFocused = false; | ||
| }); | ||
|
|
||
| this.props.navigation.addListener('refocus', () => { | ||
| if (this._isFocused) { | ||
| this._component.scrollTo({ x: 0, y: 0 }); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| setNativeProps(props) { | ||
| this._component.setNativeProps(props); | ||
| } | ||
|
|
||
| _setComponentRef(c) { | ||
| this._component = c; | ||
| } | ||
|
|
||
| getNode() { | ||
| return this._component; | ||
| } | ||
|
|
||
| render() { | ||
| return ( | ||
| <ScrollView | ||
| {...this.props} | ||
| ref={view => { | ||
| this._component = view; | ||
| }} | ||
| /> | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| export default function PhotoGrid({ id }) { | ||
| const PHOTOS = Array.from({ length: 24 }).map( | ||
| (_, i) => `https://unsplash.it/300/300/?random&__id=${id}${i}` | ||
| ); | ||
|
|
||
| return ( | ||
| <NavigationAwareScrollView contentContainerStyle={styles.content}> | ||
| {PHOTOS.map(uri => ( | ||
| <View key={uri} style={styles.item}> | ||
| <Image source={{ uri }} style={styles.photo} /> | ||
| </View> | ||
| ))} | ||
| </NavigationAwareScrollView> | ||
| ); | ||
| } | ||
|
|
||
| const styles = StyleSheet.create({ | ||
| content: { | ||
| flexDirection: 'row', | ||
| flexWrap: 'wrap', | ||
| padding: 4, | ||
| }, | ||
| item: { | ||
| height: Dimensions.get('window').width / 2, | ||
| width: '50%', | ||
| padding: 4, | ||
| }, | ||
| photo: { | ||
| flex: 1, | ||
| resizeMode: 'cover', | ||
| }, | ||
| }); |
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