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| 1 | +/* @flow */ |
| 2 | + |
| 3 | +import React from 'react' |
| 4 | +import { |
| 5 | + Alert, |
| 6 | + StyleSheet, |
| 7 | + Text, |
| 8 | + View, |
| 9 | + type Props, |
| 10 | + type State, |
| 11 | + TouchableOpacity, |
| 12 | +} from 'react-native' |
| 13 | +import NestedListView, { |
| 14 | + type Node, |
| 15 | + NestedRow, |
| 16 | +} from 'react-native-nested-listview' |
| 17 | + |
| 18 | +const generateXNumItems = (numItems, prefix) => { |
| 19 | + const items = [] |
| 20 | + |
| 21 | + let i |
| 22 | + |
| 23 | + for (i = 0; i < numItems; i++) { |
| 24 | + items.push({ |
| 25 | + name: `${prefix}.${i}`, |
| 26 | + selected: false, |
| 27 | + }) |
| 28 | + } |
| 29 | + |
| 30 | + return items |
| 31 | +} |
| 32 | + |
| 33 | +const data = [ |
| 34 | + { |
| 35 | + name: 'Item level 1.1', |
| 36 | + customId: '1.1', |
| 37 | + selected: false, |
| 38 | + }, |
| 39 | + { |
| 40 | + name: 'Item level 1.2', |
| 41 | + selected: false, |
| 42 | + customId: '1.2', |
| 43 | + descendants: [ |
| 44 | + { |
| 45 | + name: 'Item level 1.2.1', |
| 46 | + customId: '1.2.1', |
| 47 | + selected: false, |
| 48 | + }, |
| 49 | + { |
| 50 | + name: 'Item level 1.2.2', |
| 51 | + customId: '1.2.2', |
| 52 | + selected: false, |
| 53 | + }, |
| 54 | + ], |
| 55 | + }, |
| 56 | + { |
| 57 | + name: 'Item level 1.3', |
| 58 | + customId: '1.3', |
| 59 | + selected: false, |
| 60 | + }, |
| 61 | +] |
| 62 | + |
| 63 | +const styles = StyleSheet.create({ |
| 64 | + container: {flex: 1, backgroundColor: 'rgb(255, 255, 255)', padding: 15}, |
| 65 | + node: { |
| 66 | + flex: 1, |
| 67 | + padding: 10, |
| 68 | + borderWidth: 1, |
| 69 | + borderColor: 'rgb(0, 0, 0)', |
| 70 | + }, |
| 71 | +}) |
| 72 | +export default class ExampleApp extends React.Component<Props, State> { |
| 73 | + nestedListView: any |
| 74 | + |
| 75 | + constructor(props) { |
| 76 | + super(props) |
| 77 | + this.state = { |
| 78 | + selected: [], |
| 79 | + } |
| 80 | + } |
| 81 | + |
| 82 | + getChildrenName = (node: Node) => { |
| 83 | + if (node.name === 'Item level 1.2.2') { |
| 84 | + return 'children' |
| 85 | + } |
| 86 | + |
| 87 | + return 'descendants' |
| 88 | + } |
| 89 | + |
| 90 | + toggleChecked = node => { |
| 91 | + if (this.state.selected.includes(node.customId)) { |
| 92 | + const selected = this.state.selected.filter(id => id !== node.customId) |
| 93 | + this.setState({ |
| 94 | + selected, |
| 95 | + }) |
| 96 | + } else { |
| 97 | + this.setState({ |
| 98 | + selected: [node.customId, ...this.state.selected], |
| 99 | + }) |
| 100 | + } |
| 101 | + } |
| 102 | + |
| 103 | + render = () => { |
| 104 | + console.log('Render NestedRowExample') |
| 105 | + return ( |
| 106 | + <View style={styles.container}> |
| 107 | + <NestedListView |
| 108 | + data={data} |
| 109 | + extraData={this.state.selected} |
| 110 | + getChildrenName={this.getChildrenName} |
| 111 | + renderNode={(node: Node, level: number) => ( |
| 112 | + <View> |
| 113 | + <Text>{node.name}</Text> |
| 114 | + <TouchableOpacity onPress={() => this.toggleChecked(node)}> |
| 115 | + {this.state.selected.includes(node.customId) ? ( |
| 116 | + <Text>CHECKED</Text> |
| 117 | + ) : ( |
| 118 | + <Text>NOT CHECKED</Text> |
| 119 | + )} |
| 120 | + </TouchableOpacity> |
| 121 | + </View> |
| 122 | + )} |
| 123 | + /> |
| 124 | + </View> |
| 125 | + ) |
| 126 | + } |
| 127 | +} |
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