huiliao-app/images/App.js

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

import React, {Component} from 'react';
import {Platform, StyleSheet, Text, View ,Image} from 'react-native';
import ImagePicker from 'react-native-image-crop-picker';

const instructions = Platform.select({
  ios: 'Press Cmd+R to reload,\n' + 'Cmd+D or shake for dev menu',
  android:
    'Double tap R on your keyboard to reload,\n' +
    'Shake or press menu Text for dev menu',
});


export default class App extends Component{
  constructor(props){
    super(props)
    this.state={
      list:[{}]
    }
  }
  componentWillMount(){
    
  }
  render() {

    const {list} = this.state
    return (
      <View style={styles.container}>
        <Text 
        style={styles.margin}
        onPress={()=>{
          ImagePicker.openPicker({
            width: 300,
            height: 400,
            cropping: true,
            cropperChooseText:'确认',
            cropperCancelText:"取消"
          }).then(image => {
            list.push(image)
            this.setState({
              list
            })
            console.log(image);
          });
          
        }}>
          点击
        </Text>
        <Text
        style={styles.margin}
        onPress={()=>{
          ImagePicker.openPicker({
            multiple: true,
            cropping:true,
            cropperChooseText:'确认',
            cropperCancelText:"取消"
          }).then(images => {

            list.push(images)
            this.setState({
              list
            })
            console.log(images);
          });
        }}>
          点击
        </Text>
   
        <Text 
        style={styles.margin}
        onPress={()=>{
          ImagePicker.openCamera({
            width: 300,
            height: 400,
            cropping: true,
            cropperChooseText:'确认',
            cropperCancelText:"取消"
          }).then(image => {
            list.push(image)
            this.setState({
              list
            })
            console.log(image);
          });
        }}>
          点击
        </Text>

        <View style={{backgroundColor:'#333',width:375,height:400}}>
          {
            list.map((item,index)=>{
              console.log(item.path)
              let source = { uri: item.path };
              return (
                <Image  
                style={{width:100,height:100}}
                key={index} source={source}></Image>
              )
            })
          }
        </View>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  margin:{
    marginBottom:20
  },
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#F5FCFF',
  },
  welcome: {
    fontSize: 20,
    textAlign: 'center',
    margin: 10,
  },
  instructions: {
    textAlign: 'center',
    color: '#333333',
    marginBottom: 5,
  },
});