React Native 继续学习
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下一个项目公司也打算使用react native.大致看了下原型设计,写几个小demo先试试水.特此记录下.
1.微信及朋友圈分享.QQ及朋友圈分享,微博分享,微信支付,支付宝支付.
2.导航条渐隐
3.通讯录
4.卡片式轮播
5.时间轴
6.图片+列表的组合效果
7.图片下拉放大
8.原生视频播放器
9.react-navigation的使用和变更
10.倒计时
11.多张图片查看
12.自定义页面加载指示器
......
1.微信及朋友圈分享,微信支付: https://github.com/yorkie/react-native-wechat
QQ分享:https://github.com/reactnativecn/react-native-qq
微博分享: https://github.com/reactnativecn/react-native-weibo
支付宝支付: react-native-smart-alipay 或者 react-native-payment-alipay 或者 react-native-alipay
微信支付: react-native-wechat
想要秀操作,通过交互原生支付也可以.
大神刚出炉的React Native 分享功能封装【一行代码，双平台分享】 支持平台：【QQ】【QQ空间】【微信】【朋友圈】【微博】 https://github.com/songxiaoliang/react-native-share
2.导航条渐隐,该项目我们打算使用react-navigation,但是该库的导航条使用不了渐隐,于是只能在需要导航条渐隐的地方,改用自己定义的导航条.
基本代码如下:
1 /** 2 * Created by shaotingzhou on 2017/5/9. 3 */ 4 import React, { Component } from \'react\'; 5 import { 6 AppRegistry, 7 StyleSheet, 8 Text, 9 View, 10 Image, 11 TouchableOpacity, 12 Platform, 13 Dimensions, 14 RefreshControl, 15 FlatList, 16 ActivityIndicator, 17 ScrollView, 18 TextInput 19 } from \'react-native\'; 20 var {width,height} = Dimensions.get(\'window\'); 21 var dataAry = [] 22 var start = 0 23 24 export default class OneDetailsFlat extends Component{ 25 //返回首页方法需要修改react-navigation库的源码.修改方法见:http://www.jianshu.com/p/2f575cc35780 26 static navigationOptions = ({ navigation }) => ({ 27 header:null, 28 title: \'FlatList\', 29 headerStyle:{backgroundColor:\'rgba(255,255,255,0.0)\'}, 30 headerTintColor: \'black\', 31 headerLeft:( 32 <Text onPress={()=>navigation.goBack("Tab")}>返回首页</Text> 33 ), 34 }) 35 36 // 构造 37 constructor(props) { 38 super(props); 39 // 初始状态 40 for(start = 0;start<20;start++){ 41 var obj = {} 42 obj.key = start 43 dataAry.push(obj) 44 } 45 46 this.state = { 47 opacity:0, 48 dataAry: dataAry, 50 }; 51 } 52 render() { 53 return ( 54 <View> 55 <FlatList 56 onScroll = {(e)=>{this.onScroll(e)}} 57 data = {this.state.dataAry} 58 renderItem = {(item) => this.renderRow(item)} 59 /> 60 <View style={{width:width,height:69,alignItems:\'center\',flexDirection:\'row\',position:\'absolute\',top:0,backgroundColor:\'rgba(122,233,111,\' + this.state.opacity + \')\'}}> 61 <Text style={{width:60,color:\'red\'}} onPress={()=>this.props.navigation.goBack(null)}>返回</Text> 62 </View> 63 </View> 64 ); 65 } 66 67 //listView的renderRow 68 renderRow =(item) =>{ 69 return( 70 <View style={{flexDirection:\'row\',marginTop:5,marginLeft:5,borderWidth:1,marginRight:5,borderColor:\'#DEDEDE\',backgroundColor:\'white\'}}> 71 <Image source={require(\'../image/one_selected.png\')} style={{width:60,height:60,borderRadius:30,marginTop:5,marginBottom:5}}/> 72 <View style={{flexDirection:\'column\',justifyContent:\'space-around\',marginLeft:5}}> 73 <Text style={{fontSize:16}}>歌名: 彩虹彼岸</Text> 74 <View style={{flexDirection:\'row\'}}> 75 <Text style={{fontSize:14,color:\'#BDBDBD\'}}>歌手:虚拟歌姬</Text> 76 <Text style={{fontSize:14,color:\'#BDBDBD\',marginLeft:10}}>专辑:react native</Text> 77 </View> 78 </View> 79 </View> 80 ) 81 } 82 onScroll =(e) =>{ 83 let y = e.nativeEvent.contentOffset.y; 84 if(y < 10 ){ 85 this.setState({ 86 opacity:0 87 }) 88 }else if( y <= 69 && y>= 10){ 89 console.log(y/100) 90 this.setState({ 91 opacity:y/100 92 }) 93 }else { 94 this.setState({ 95 opacity:1 96 }) 97 } 98 } 99 100 }; 101 102 var styles = StyleSheet.create({ 103 container: { 104 flex: 1, 105 backgroundColor: \'#F5FCFF\', 106 }, 107 welcome: { 108 fontSize: 20, 109 textAlign: \'center\', 110 margin: 10, 111 }, 112 instructions: { 113 textAlign: \'center\', 114 color: \'#333333\', 115 marginBottom: 5, 116 } 117 });
3.通讯录采用三方库即可满足.https://github.com/sunnylqm/react-native-alphabetlistview
4.卡片式轮播采用三方库即可满足.https://github.com/archriss/react-native-snap-carousel
5.时间轴效果. 该效果采用FlatList打造即可.
/**
* Created by shaotingzhou on 2017/7/10.
*/
import React, { Component } from \'react\';
import {
AppRegistry,
StyleSheet,
Text,
View,
FlatList,
Dimensions,
Image
} from \'react-native\';
var {width,height} = Dimensions.get(\'window\');
var dataAry = []
import data from \'./data.json\'
export default class TimerShaft extends Component {
// 构造
constructor(props) {
super(props);
// 初始状态
this.state = {
dataAry: dataAry,
};
}
render() {
return (
<View style={{marginTop:30}}>
<FlatList
data = {this.state.dataAry}
renderItem = {(item) => this.renderRow(item)}
keyExtractor={this.keyExtractor}
/>
<View style={{width:1,height:height,backgroundColor:\'red\',position:\'absolute\',left:50}}></View>
</View>
);
}
renderRow =(item) =>{
if(item.item.text){
return(
<View style={{marginBottom:10,marginLeft:60}}>
<Text>{item.item.text}</Text>
</View>
)
}else{
return(
<View style={{flexDirection:\'row\',marginBottom:10}}>
{/*左边*/}
<View style={{width:60,marginBottom:10}}>
<View style={{flexDirection:\'row\',alignItems:\'center\'}}>
<Text>{item.item.time}</Text>
<View style={{width:10,height:10,borderRadius:5,backgroundColor:\'red\',position:\'absolute\',left:45}}></View>
</View>
</View>
{/*右边*/}
<View style={{backgroundColor:"#F2F2F2",marginLeft:5,width:width-70}} onLayout = {(event)=>this.onLayout(event)} >
<Text style={{}}>{item.item.content}</Text>
<View style={{flexDirection:\'row\',flexWrap:\'wrap\'}}>
{this.renderImg(item.item.image)}
</View>
</View>
</View>
)
}
}
keyExtractor(item: Object, index: number) {
return item.id
}
onLayout = (event)=>{
console.log(event.nativeEvent.layout.height)
}
renderImg = (imgAry) =>{
var renderAry = []
for(var i = 0;i < imgAry.length; i++){
if(imgAry.length == 1){
renderAry.push(
<Image key={i} source={{uri:imgAry[0].url}} style={{width:200,height:200}}/>
)
}else if(imgAry.length == 2 || imgAry.length == 4){
renderAry.push(
<Image key={i} source={{uri:imgAry[i].url}} style={{width:(width-70)*0.5-2,height:(width-70)*0.5-2,marginLeft:1,marginTop:1}}/>
)
}else {
renderAry.push(
<Image key={i} source={{uri:imgAry[i].url}} style={{width:(width-70)/3-2,height:(width-70)/3-2,marginLeft:1,marginTop:1}}/>
)
}
}
return renderAry
}
componentDidMount() {
this.setState({
dataAry:data
})
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: \'center\',
alignItems: \'center\',
backgroundColor: \'#F5FCFF\',
},
welcome: {
fontSize: 20,
textAlign: \'center\',
margin: 10,
},
instructions: {
textAlign: \'center\',
color: \'#333333\',
marginBottom: 5,
},
});
这个是数据:
[
{
"id":1,
"time":"01-05",
"content":"今天,带二哈去节育,再不节育的话,就要被泰迪榨干了(ps:只有累死的牛,没有耕坏的地),关键一路上,那只小区里面的泰迪一路尾随.....这..这个.这是哪个女人养的泰迪,请告诉我你的职业和联系方式,你对我二哈做的,我十倍还你!!!夕阳西下,俩狗一路走,二哈好像知道自己的下场,一脸委屈的看着我,就像许仙看法海似得看着我,二哈,不是哥不成全你们俩,而是哥看着你心疼啊...........",
"image":[
{
"imageId":47,
"url":"https://ws1.sinaimg.cn/mw690/610dc034ly1ffwb7npldpj20u00u076z.jpg"
}
]
},
{
"id":2,
"time":"01-04",
"content":"今天在家躺尸,二哈在家吃刚买的狗粮,我蹲在旁边看着它吃,二哈看看我,看看碗,于是往旁边挪了挪",
"image":[
{
"imageId":3,
"url":"https://ws1.sinaimg.cn/large/610dc034gy1fh9utulf4kj20u011itbo.jpg"
},
{
"imageId":4,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fh8ox6bmjlj20u00u0mz7.jpg"
},
{
"imageId":5,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fh7hwi9lhzj20u011hqa9.jpg"
},
{
"imageId":6,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fgj7jho031j20u011itci.jpg"
}
]
},
{
"id":3,
"time":"01-03",
"content":"今天上班,把狗丢在家里,回来家没了~~~",
"image":[
{
"imageId":7,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fgi3vd6irmj20u011i439.jpg"
},
{
"imageId":8,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fgepc1lpvfj20u011i0wv.jpg"
},
{
"imageId":9,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fgchgnfn7dj20u00uvgnj.jpg"
},
{
"imageId":10,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fga6auw8ycj20u00u00uw.jpg"
},
{
"imageId":11,
"url":"https://ws1.sinaimg.cn/large/d23c7564ly1fg7ow5jtl9j20pb0pb4gw.jpg"
},
{
"imageId":12,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1fgepc1lpvfj20u011i0wv.jpg"
},
{
"imageId":13,
"url":"https://ws1.sinaimg.cn/large/d23c7564ly1fg6qckyqxkj20u00zmaf1.jpg"
},
{
"imageId":14,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1ffyp4g2vwxj20u00tu77b.jpg"
},
{
"imageId":15,
"url":"https://ws1.sinaimg.cn/large/610dc034ly1ffxjlvinj5j20u011igri.jpg"
}
]
},
{
"id":4,
"time":"01-02",
"content":"今天是2017年的第二天,两只单身狗在家附近的公园里的亭子躲雨,然后,来了只泰迪.然后亭子里就剩一只单身狗了(ps:我以上是关于React Native 继续学习的主要内容，如果未能解决你的问题，请参考以下文章
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