react 上拉加载

2019-03-07  本文已影响0人  菜菜大白菜

ps:适合h5页面的滚动条插件,支持app内嵌页面。

1. 下载scroll-pullLoad

    npm install --save react-pullload

2.引用

    import ReactPullLoad, { STATS } from "react-pullload";

3. css 样式

       *引用插件内的样式

        import "node_modules/react-pullload/dist/ReactPullLoad.css";

     直接引用插件内的样式可能会打包是出现问题

      可以直接用这个:

            .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

      })

    }


        这是react-pullLoad作者npm插件地址:https://www.npmjs.com/package/react-pullload

上一篇下一篇

猜你喜欢

热点阅读