coloumnAlignItems.js

render() {
 return (
 <View style = {
   {
    flex: 1,
    flexDirection: ‘column’,
    alignItems: ‘center’,
   }
  } >
  < View style = {{width: 50,height: 50,backgroundColor: ‘powderblue’}} /> 
  < View style = {{width: 50,height: 50,backgroundColor: ‘skyblue’}} /> 
  < View style = {{width: 50,height: 50,backgroundColor: ‘steelblue’}} /> 
 </View>
 );
}
};