下一个项目公司也打算使用Reactnative.大致看了下原型设计,写几个小demo先试试水.特此记录下.
http://www.cnblogs.com/shaoting/p/7148240.html转载
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
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
......
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
支付宝支付没有找到,只能跳转原生进行支付.
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,128); line-height:1.5!important"> 8 Text,128); line-height:1.5!important"> 9 View,128); line-height:1.5!important"> 10 Image,128); line-height:1.5!important"> 11 TouchableOpacity,128); line-height:1.5!important"> 12 Platform,128); line-height:1.5!important"> 13 Dimensions,128); line-height:1.5!important"> 14 RefreshControl,128); line-height:1.5!important"> 15 FlatList,128); line-height:1.5!important"> 16 ActivityIndicator,128); line-height:1.5!important"> 17 ScrollView,128); line-height:1.5!important"> 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,128); line-height:1.5!important"> 28 title: 'FlatList',128); line-height:1.5!important"> 29 headerStyle:{backgroundColor:'rgba(255,255,0.0)'},128); line-height:1.5!important"> 30 headerTintColor: 'black',128); line-height:1.5!important"> 31 headerLeft:( 32 <Text onPress={()=>navigation.goBack("Tab")}>返回首页</Text> 33 ),128); line-height:1.5!important"> 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:0,128); line-height:1.5!important"> 48 dataAry: dataAry,128); line-height:1.5!important"> 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,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 91 opacity:y/100 92 }) 93 }else { 94 95 opacity:1 96 }) 97 } 98 } 99 100 }; 101 102 var styles = StyleSheet.create({ 103 container: { 104 flex: 1,128); line-height:1.5!important">105 backgroundColor: '#F5FCFF',128); line-height:1.5!important">106 },128); line-height:1.5!important">107 welcome: { 108 fontSize: 20,128); line-height:1.5!important">109 textAlign: 'center',128); line-height:1.5!important">110 margin: 10,128); line-height:1.5!important">111 },128); line-height:1.5!important">112 instructions: { 113 textAlign: 'center',128); line-height:1.5!important">114 color: '#333333',128); line-height:1.5!important">115 marginBottom: 5,128); line-height:1.5!important">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
/**
* 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',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,left:45}}></View>
</View>
</View>
{/*右边*/}
<View style={{backgroundColor:"#F2F2F2",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,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:
该效果采用ScrollView包含两个FlatList和一个ListView完成(ps:第三个横向的cell的单独使用FlatList可以,但是和其他组件搭配就错误.....)
* Created by shaotingzhou on 2017/7/6.
4 5 * Sample React Native App 6 * https://github.com/facebook/react-native 7 * @flow 8 9 10 import React,128); line-height:1.5!important"> 11 import { 12 AppRegistry,128); line-height:1.5!important"> 13 StyleSheet,128); line-height:1.5!important"> 14 Text,128); line-height:1.5!important"> 15 View,128); line-height:1.5!important"> 16 ScrollView,128); line-height:1.5!important"> 17 Dimensions,128); line-height:1.5!important"> 18 FlatList,128); line-height:1.5!important"> 19 SectionList,128); line-height:1.5!important"> 20 Image,128); line-height:1.5!important"> 21 ListView 22 } from 'react-native'; 23 24 25 var dataAryOne = [] 26 var dataAryTwo = [] 27 var ds = new ListView.DataSource({rowHasChanged:(r1,r2)=> r1 !== r2}); 28 29 export default class Main extends Component { 30 31 constructor(props) { 32 super(props); 33 34 for(var i = 0;i<100;i++){ 35 36 obj.key = i 37 dataAry.push(obj) 38 } 39 41 var i = 0;i<10;i++){ 42 43 obj.key = i 44 dataAryOne.push(obj) 45 } 46 47 48 var i = 0;i<5;i++){ 49 50 obj.key = i 51 dataAryTwo.push(obj) 52 } 53 54 55 index:1,128); line-height:1.5!important"> 56 dataAry: dataAry,128); line-height:1.5!important"> 57 dataAryOne:dataAryOne,128); line-height:1.5!important"> 58 dataSource:ds.cloneWithRows(dataAryTwo) 59 }; 60 } 61 62 render() { 63 64 <View style={{flex:1}}> 65 <View style={{backgroundColor:'cyan',justifyContent:'center',alignItems:'center'}}> 66 <Text>导航条</Text> 67 </View> 68 <ScrollView 69 style={{flex:1}} 70 stickyHeaderIndices = {[1]} 71 > 72 73 <Image source={require('./1.gif')} style={{width:width,height:200}} /> 74 75 <View style={{backgroundColor:'yellow'}}> 76 <View style={{flexDirection:'row',marginTop:20}}> 77 <Text onPress={()=>{this.onClickOne()}} style={{color:this.state.index == 1 ? 'red' : 'cyan'}}>11111</Text> 78 <Text onPress={()=>{this.onClickTwo()}} style={{color:this.state.index == 2 ? 'red' : 'cyan'}}>22222</Text> 79 <Text onPress={()=>{this.onClickThree()}} style={{color:this.state.index == 3 ? 'red' : 'cyan'}}>33333</Text> 80 </View> 81 </View> 82 83 {this.bottomViewRender()} 84 85 </ScrollView> 86 87 </View> 88 ); 89 } 90 bottomViewRender = ()=>{ 91 if(this.state.index == 1){ 92 93 <FlatList 94 data = { 95 renderItem = {(item) => 96 /> 97 ) 98 }this.state.index == 2){ 99 100 <FlatList 101 data = {this.state.dataAryOne} 102 renderItem = {(item) => this.renderRowOne(item)} 103 /> 104 ) 105 }106 这里横向只能使用ListView或者SctionList.FLatList设置横向属性报错 107 108 <ListView 109 dataSource={this.state.dataSource} 110 renderRow={this.renderRowTwo} 111 contentContainerStyle={styles.listViewStyle} 112 /> 113 ) 114 } 115 117 118 119 onClickOne =()=>{ 120 121 index:1,128); line-height:1.5!important">122 }) 123 } 124 onClickTwo =()=>{ 125 126 index:2,128); line-height:1.5!important">127 }) 128 } 129 onClickThree =()=>{ 130 131 index:3,128); line-height:1.5!important">132 }) 133 } 134 135 136 renderRow =(item) =>{ 137 138 <View style={{flexDirection:'row',128); line-height:1.5!important">139 <View style={{flexDirection:'column',128); line-height:1.5!important">140 <Text style={{fontSize:16}}>歌名: 彩虹彼岸</Text> 141 <View style={{flexDirection:'row'}}> 142 <Text style={{fontSize:14,128); line-height:1.5!important">143 <Text style={{fontSize:14,128); line-height:1.5!important">144 </View> 145 </View> 146 </View> 147 ) 148 149 } 150 151 renderRowOne =(item) =>{ 152 153 <View style={{flexDirection:'row',128); line-height:1.5!important">154 <View style={{flexDirection:'row'}}> 155 <Text style={{fontSize:14,128); line-height:1.5!important">156 <Text style={{fontSize:14,128); line-height:1.5!important">157 </View> 158 </View> 159 ) 160 161 } 162 163 renderRowTwo(rowData){ 164 165 <View style={styles.innerViewStyle}> 166 <Image source={require('./2.jpeg')} style={{width:150,height:150}} /> 167 <Text>你的名字</Text> 168 </View> 169 ); 170 } 171 // 172 renderRowTwo =(item) =>{ 173 174 return ( 175 <View> 176 { 177 dataAryTwo.map(function (item,i) { 178 return ( 179 <View style={{marginLeft:5}} key={i}> 180 <Image source={require('./2.jpeg')} style={{width:150,height:150}} /> 181 <Text>你的名字</Text> 182 </View> 183 ); 184 }) 185 } 186 </View> 187 ) 188 } 189 190 191 } 192 193 const styles = StyleSheet.create({ 194 container: { 195 flex: 1,128); line-height:1.5!important">196 justifyContent: 'center',128); line-height:1.5!important">197 alignItems: 'center',128); line-height:1.5!important">198 backgroundColor: '#F5FCFF',128); line-height:1.5!important">199 },128); line-height:1.5!important">200 welcome: { 201 fontSize: 20,128); line-height:1.5!important">202 textAlign: 'center',128); line-height:1.5!important">203 margin: 10,128); line-height:1.5!important">204 },128); line-height:1.5!important">205 instructions: { 206 textAlign: 'center',128); line-height:1.5!important">207 color: '#333333',128); line-height:1.5!important">208 marginBottom: 5,128); line-height:1.5!important">209 },128); line-height:1.5!important">210 listViewStyle:{ 211 改变主轴方向 212 flexDirection:'row',128); line-height:1.5!important">213 多行显示 214 flexWrap:'wrap' 215 },128); line-height:1.5!important">216 });
7.图片上拉放大:https://github.com/lelandrichardson/react-native-parallax-view
8.原生视频播放器:https://github.com/cornedor/react-native-video-player
9.react-navigation的使用和变更:
使用介绍: http://www.jianshu.com/p/2f575cc35780
demo:https://github.com/pheromone/navigationDemo
在使用react-navigation中遇到几个难点:
- 1.跳至相应路由(如返回首页功能). http://www.jianshu.com/p/2f575cc35780
- 2.防止点击过快,跳界面两次. https://github.com/react-community/react-navigation/pull/1348/files
- 3.static中使用this. http://www.jianshu.com/p/2f575cc35780
10.倒计时:https://github.com/kkkelicheng/ReactNative-CountDownButton
优点: 不会因为进入后台而停止读秒
支持同个页面再次进入时，智能的判断读秒时间，显示是否继续计时
11.多张图片查看:https://github.com/ascoders/react-native-image-viewer
12.因为下个项目是有关狗狗的,页面加载需要一个指示器.在不考虑性能上暂时使用gif图+Modal实现.
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/**
* Sample React Native App
* https://github.com/facebook/react-native
* @flow
*/
import
React,{ Component } from
'react'
;
{
AppRegistry,
StyleSheet,
Text,
View,
Modal,
Image,
Dimensions
} from
'react-native'
;
var
{width,height} = Dimensions.get(
'window'
);
export
default
class
model
extends
Component {
// 构造
constructor(props) {
super
(props);
// 初始状态
this
.state = {
visible:
true
};
}
render() {
return
(
<View>
<Modal
>
<View style={{backgroundColor:
'rgba(0,0.4)'
,width:width,justifyContent:
'center'
}}>
<Image source={require(
'./food.gif'
)} style={{width:120,height:120,borderRadius:5}}/>
<Text style={{color:
'white'
}}>狗生思考中...</Text>
</View>
</Modal>
</View>
);
}
componentDidMount() {
//模拟请求数据,请求OK,把visible置为false即可
.timer = setTimeout(
() => {
.setState({
false
})
},
1000
);
}
componentWillUnmount() {
.timer && clearTimeout(
.timer);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent:
fontSize: 20,
textAlign:
AppRegistry.registerComponent(
'model'
其中,关于Android下使用gif图需要简单配置下,请查看http://www.cnblogs.com/shaoting/p/5934725.html的第25条内容.
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