React上拉加载(React-PullLoad)
白君之
1、下载react-pullload
npm i react-pullload
2、在组件中去引用
import ReactPullLoad,{ STATS } from "react-pullload";
3、css样式
①引用插件内的样式
import "node_modules/react-pullload/dist/ReactPullLoad.css";
②或者直接引入使用下列代码：
.pull-load {
position: relative;
overflow-y: scroll;
-webkit-overflow-scrolling: touch;
}
.pull-load-head {
position: absolute;
transform: translate3d(0px, -100%, 0px);
width: 100%;
}
.state-refreshing .pull-load-head,
.state-refreshed .pull-load-head {
position: relative;
transform: none;
}
.pull-load-body {
position: relative;
}
.state-refreshing .pull-load-body {
transition: transform 0.2s;
}
.state-reset .pull-load-body {
transition: transform 0.2s;
}
.pull-load-head-default {
text-align: center;
font-size: 12px;
line-height: 0.8rem;
color: #7676a1;
}
.state-pulling .pull-load-head-default:after {
content: '下拉刷新';
}
.state-pulling.enough .pull-load-head-default:after {
content: '松开刷新';
}
.state-refreshing .pull-load-head-default:after {
content: '正在刷新...';
}
.state-refreshed .pull-load-head-default:after {
content: '刷新成功';
}
.state-pulling .pull-load-head-default {
opacity: 1;
}
.state-pulling .pull-load-head-default i {
display: inline-block;
font-size: 0.3rem;
margin-right: .6em;
margin-top: -3px;
vertical-align: middle;
height: 0.3rem;
border-left: 1px solid;
position: relative;
transition: transform .3s ease;
}
.state-pulling .pull-load-head-default i:before,
.state-pulling .pull-load-head-default i:after {
content: '';
position: absolute;
font-size: .5em;
width: 1em;
bottom: 0px;
border-top: 1px solid;
}
.state-pulling .pull-load-head-default i:before {
right: 1px;
transform: rotate(50deg);
transform-origin: right;
}
.state-pulling .pull-load-head-default i:after {
left: 0px;
transform: rotate(-50deg);
transform-origin: left;
}
.state-pulling.enough .pull-load-head-default i {
transform: rotate(180deg);
}
.state-refreshing .pull-load-head-default i {
margin-right: 10px;
margin-top: -3px;
display: inline-block;
vertical-align: middle;
font-size: 0.3rem;
width: 0.3rem;
height: 0.3rem;
border: 2px solid #9494b6;
border-top-color: #fff;
border-radius: 100%;
animation: circle .8s infinite linear;
}
.state-refreshed .pull-load-head-default {
opacity: 1;
transition: opacity 1s;
}
.state-refreshed .pull-load-head-default i {
display: inline-block;
box-sizing: content-box;
vertical-align: middle;
margin-right: 10px;
margin-top: -3px;
font-size: 14px;
height: 1em;
width: 1em;
border: 2px solid;
border-radius: 100%;
position: relative;
}
.state-refreshed .pull-load-head-default i:before {
content: '';
position: absolute;
top: -2px;
left: 4px;
height: 11px;
width: 5px;
border: solid;
border-width: 0 2px 2px 0;
transform: rotate(40deg);
}
.pull-load-footer-default {
text-align: center;
font-size: 12px;
line-height: 0.8rem;
color: #7676a1;
}
.state-loading .pull-load-footer-default:after {
content: '加载更多';
}
.pull-load-footer-default.nomore:after {
content: '没有更多';
}
.state-loading .pull-load-footer-default i {
margin-right: 10px;
margin-top: -3px;
display: inline-block;
vertical-align: middle;
font-size: 0.3rem;
width: 0.3rem;
height: 0.3rem;
border: 2px solid #9494b6;
border-top-color: #fff;
border-radius: 100%;
animation: circle .8s infinite linear;
}
@keyframes circle {
100% {
transform: rotate(360deg);
}
}4、pullLoad标签包裹
<ReactPullLoad
downEnough={150}
ref="reactpullload"
className="block"
*加上下面注释的属性会出问题
// isBlockContainer={true}
action={this.state.action}
handleAction={this.handleAction}
hasMore={this.state.hasMore}
style={{paddingTop: 132}}
distanceBottom={1000}>
..... this is list
</ReactPullLoad>
5、scroll函数
constructor(props) {
super(props);
this.state = {
// scroll 相关
hasMore: true,
action: STATS.init,
}
}
// 滚动条
handleAction = (action) => {
if(action === this.state.action ||
action === STATS.refreshing && this.state.action === STATS.loading ||
action === STATS.loading && this.state.action === STATS.refreshing){
return false
}
if(action === STATS.refreshing){//刷新
setTimeout(()=>{
//refreshing complete
下拉刷新
}, 1000)
} else if(action === STATS.loading){//加载更多
this.setState({
hasMore: true
});
setTimeout(()=>{
if(this.state.index === this.state.curPage){
this.setState({
action: STATS.reset,
hasMore: false
});
} else{
上拉加载....
}
}, 1000)
}
this.setState({
action: action
})
}
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