number only in react antive code example

Example: react native numbers only input

/\*\*  
 \* Sample React Native App  
 \* https://github.com/facebook/react-native  
 \* @flow  
 \*/  

import React, { Component } from "react";  
import { Platform, StyleSheet, View, Button, TextInput, } from "react-native";  

export default class App extends Component {  

  render() {  
return (  
<View style={styles.container}>  

<TextInput  
          placeholder="Enter Your Mobile Number"  
          underlineColorAndroid='transparent'  
          style={styles.TextInputStyle}  
**keyboardType={'numeric'}**  
/>  

</View>  
);  
}  
}  

const styles = StyleSheet.create({  
  container: {  
    flex: 1,  
    justifyContent: 'center',  
},  
  headerText: {  
    fontSize: 20,  
    textAlign: "center",  
    margin: 10,  
    fontWeight: "bold"  
},  
TextInputStyle: {  
    textAlign: 'center',  
    height: 40,  
    borderRadius: 10,  
    borderWidth: 2,  
    borderColor: '#009688',  
    marginBottom: 10  
}  
});