react-native类型检验组件prop-types

/**

* Create by bamboo on 2018-04-13

*

*/

import React,{ Component} from 'react';

import { View,Text,Button,} from 'react-native';

import PropTypes from 'prop-types'; //类型检验组件

//主页

export default class App extends Component {

static propTypes = {

onButtonPress:PropTypes. func,// 回调函数

}

onButtonPress = () =>{

console. log( ip);

}

render() {

return (

< View >

< Button

onPress= {this. onButtonPress }

title= "Learn More"

color= "#841584"

accessibilityLabel= "Learn more about this purple button"

/>

</ View >

);

}