Hi ,
I want to put data from Parse in listview. I try this:
constructor(props) { super(props); const dataSource = new ListView.DataSource({ rowHasChanged: (row1, row2) => row1 !== row2, }); this.state = { dataSource: dataSource, } }
then , i create those 3 functions:
**Function renderItem :
`_renderItem(task) {
return (
);
} ****Function listenForTasks:** listenForTasks( ) {
Parse.initialize("APPID");
Parse.serverURL = 'URL';
var GameScore = Parse.Object.extend("Category");
var gameScore = new GameScore();
var tasks = [];
var ds = this.state.dataSource;
var query = new Parse.Query(gameScore);
query.find({
success: function(results) {
for (var i = 0; i < results.length; i++) {
tasks.push({
name: results[i].get("name"),
_key: results[i].get("objectId")
});
}
this.setState({
dataSource: ds.cloneWithRows(tasks.slice())
});
},
error: function(error) {
alert( mystate );
},
}) ****Function componentDidMount** componentDidMount() {
this.listenForTasks( );
}`
Then , i create my listView :
`<ScrollView style={{flex: 1}}>
<ListView
enableEmptySections={true}
dataSource={this.state.dataSource}
renderRow={this._renderItem.bind()}
/>
`
I create a file ListItem
`export default class ListItem extends Component {
render(){
return(
Hi , I want to put data from Parse in listview. I try this:
constructor(props) { super(props); const dataSource = new ListView.DataSource({ rowHasChanged: (row1, row2) => row1 !== row2, }); this.state = { dataSource: dataSource, } }then , i create those 3 functions: **Function renderItem : `_renderItem(task) { return (
); }
****Function listenForTasks:**listenForTasks( ) { Parse.initialize("APPID"); Parse.serverURL = 'URL'; var GameScore = Parse.Object.extend("Category"); var gameScore = new GameScore(); var tasks = []; var ds = this.state.dataSource; var query = new Parse.Query(gameScore); query.find({ success: function(results) { for (var i = 0; i < results.length; i++) { tasks.push({ name: results[i].get("name"), _key: results[i].get("objectId") }); } this.setState({ dataSource: ds.cloneWithRows(tasks.slice()) }); }, error: function(error) { alert( mystate ); }, })****Function componentDidMount**componentDidMount() { this.listenForTasks( ); }`Then , i create my listView : `<ScrollView style={{flex: 1}}> <ListView enableEmptySections={true} dataSource={this.state.dataSource} renderRow={this._renderItem.bind()} />
`
I create a file ListItem `export default class ListItem extends Component { render(){ return(
}`
But nothing is displayed.