Add ListView Grid Layout Example to UIExplorer Examples
Summary: On @brentvatne suggestion: https://github.com/facebook/react-native/issues/1276#issuecomment-112161358 I imported my Grid Layout example (https://github.com/yelled3/react-native-grid-example) into UIExplorer.  Closes https://github.com/facebook/react-native/pull/1668 Github Author: Adam Farhi <yelled3@gmail.com>
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Adam Farhi
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/**
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* The examples provided by Facebook are for non-commercial testing and
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* evaluation purposes only.
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*
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* Facebook reserves all rights not expressly granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
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* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* @flow
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*/
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'use strict';
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var React = require('react-native');
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var {
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Image,
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ListView,
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TouchableHighlight,
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StyleSheet,
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Text,
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View,
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} = React;
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var THUMB_URLS = [
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-ash3/t39.1997/p128x128/851549_767334479959628_274486868_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851561_767334496626293_1958532586_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-ash3/t39.1997/p128x128/851579_767334503292959_179092627_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851589_767334513292958_1747022277_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851563_767334559959620_1193692107_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851593_767334566626286_1953955109_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851591_767334523292957_797560749_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851567_767334529959623_843148472_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851548_767334489959627_794462220_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851575_767334539959622_441598241_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-ash3/t39.1997/p128x128/851573_767334549959621_534583464_n.png',
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'https://fbcdn-dragon-a.akamaihd.net/hphotos-ak-prn1/t39.1997/p128x128/851583_767334573292952_1519550680_n.png',
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];
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var ListViewGridLayoutExample = React.createClass({
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statics: {
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title: '<ListView> - Grid Layout',
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description: 'Flexbox grid layout.'
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},
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getInitialState: function() {
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var ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2});
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return {
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dataSource: ds.cloneWithRows(this._genRows({})),
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};
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},
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_pressData: ({}: {[key: number]: boolean}),
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componentWillMount: function() {
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this._pressData = {};
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},
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render: function() {
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return (
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// ListView wraps ScrollView and so takes on its properties.
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// With that in mind you can use the ScrollView's contentContainerStyle prop to style the items.
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<ListView
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contentContainerStyle={styles.list}
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dataSource={this.state.dataSource}
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renderRow={this._renderRow}
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/>
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);
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},
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_renderRow: function(rowData: string, sectionID: number, rowID: number) {
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var rowHash = Math.abs(hashCode(rowData));
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var imgSource = {
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uri: THUMB_URLS[rowHash % THUMB_URLS.length],
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};
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return (
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<TouchableHighlight onPress={() => this._pressRow(rowID)} underlayColor="transparent">
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<View>
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<View style={styles.row}>
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<Image style={styles.thumb} source={imgSource} />
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<Text style={styles.text}>
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{rowData}
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</Text>
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</View>
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</View>
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</TouchableHighlight>
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);
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},
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_genRows: function(pressData: {[key: number]: boolean}): Array<string> {
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var dataBlob = [];
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for (var ii = 0; ii < 100; ii++) {
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var pressedText = pressData[ii] ? ' (X)' : '';
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dataBlob.push('Cell ' + ii + pressedText);
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}
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return dataBlob;
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},
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_pressRow: function(rowID: number) {
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this._pressData[rowID] = !this._pressData[rowID];
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this.setState({dataSource: this.state.dataSource.cloneWithRows(
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this._genRows(this._pressData)
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)});
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},
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});
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/* eslint no-bitwise: 0 */
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var hashCode = function(str) {
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var hash = 15;
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for (var ii = str.length - 1; ii >= 0; ii--) {
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hash = ((hash << 5) - hash) + str.charCodeAt(ii);
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}
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return hash;
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};
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var styles = StyleSheet.create({
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list: {
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justifyContent: 'space-around',
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flexDirection: 'row',
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flexWrap: 'wrap'
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},
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row: {
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justifyContent: 'center',
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padding: 5,
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margin: 3,
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width: 100,
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height: 100,
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backgroundColor: '#F6F6F6',
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alignItems: 'center',
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borderWidth: 1,
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borderRadius: 5,
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borderColor: '#CCC'
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},
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thumb: {
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width: 64,
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height: 64
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},
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text: {
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flex: 1,
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marginTop: 5,
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fontWeight: 'bold'
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},
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});
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module.exports = ListViewGridLayoutExample;
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@ -40,6 +40,7 @@ var COMMON_COMPONENTS = [
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require('./ImageExample'),
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require('./LayoutEventsExample'),
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require('./ListViewExample'),
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require('./ListViewGridLayoutExample'),
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require('./ListViewPagingExample'),
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require('./MapViewExample'),
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require('./Navigator/NavigatorExample'),
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