_refreshListView(){
//Start Rendering Spinner
this.setState({refreshing:true})
this.state.cars.push(
{name:'Fusion',color:'Black'},
{name:'Yaris',color:'Blue'}
)
//Updating the dataSource with new data
this.setState({ dataSource:
this.state.dataSource.cloneWithRows(this.state.cars) })
this.setState({refreshing:false}) //Stop Rendering Spinner
}
here we are updating the array and after that we will update the dataSource. we can use fetch to request something from server and use async/await.