Awesome
Overview
vue-loadmore is a two-direction mobile pull-to-refresh component for vue.js.
Installation
$ npm install vue-loadmore
Usage
Import vue-loadmore
to your project:
// ES6 mudule
import Loadmore from 'vue-loadmore';
// CommonJS
const Loadmore = require('vue-loadmore').default;
Register component:
Vue.component('loadmore', Loadmore);
Then use it:
<loadmore :top-method="loadTop" :bottom-method="loadBottom" :bottom-all-loaded="allLoaded">
...
</loadmore>
Example
<mt-loadmore :top-method="loadTop" :bottom-method="loadBottom" :bottom-all-loaded="allLoaded" ref="loadmore">
<ul>
<li v-for="item in list">{{ item }}</li>
</ul>
</mt-loadmore>
Take upward direction for example: pull the component topDistance
pixels away from the top and then release it, the function you appointed as top-method
will run
loadTop(id) {
...// load more data
this.$refs.loadmore.onTopLoaded(id);
}
At the end of your top-method
, don't forget to manually execute the onTopLoaded
event so that mint-loadmore
removes topLoadingText
. Note that a parameter called id
is passed to loadTop
and onTopLoaded
. This is because after the top data is loaded, some reposition work is performed inside a mint-loadmore
instance, and id
simply tells the component which instance should be repositioned. You don't need to do anything more than passing id
to onTopLoaded
just as shown above.
For downward direction, things are similar. To invoke bottom-method
, just pull the component bottomDistance
pixels away from the bottom and then release it
loadBottom(id) {
...// load more data
this.allLoaded = true;// if all data are loaded
this.$refs.loadmore.onBottomLoaded(id);
}
The only difference is that after all data are fetched, you can set bottom-all-loaded
to true
so that bottom-method
will not run any more.
The ratio between the distance that your finger moves and the distance that the component actually scrolls can be defined using distance-index
, whose default value is 2。
Custom HTML templates
You can customize the top and bottom DOM using an HTML template
<mt-loadmore :top-method="loadTop" :top-status.sync="topStatus">
<ul>
<li v-for="item in list">{{ item }}</li>
</ul>
<div slot="top" class="mint-loadmore-top">
<span v-show="topStatus !== 'loading'" :class="{ 'rotate': topStatus === 'drop' }">↓</span>
<span v-show="topStatus === 'loading'">Loading...</span>
</div>
</mt-loadmore>
For example, to customize the top DOM, you'll need to write your template with a slot
attribute set to top
and class
set to mint-loadmore-top
. When the component is scrolled, it will be in one of the three status below
pull
: if the component is being pulled yet not ready to drop (top distance is within the distance threshold defined bytopDistance
)drop
: if the component is ready to droploading
: iftopMethod
is running Every time the status changes, an event namedtop-status-change
fires with a parameter indicating the current status of the component. So you can handle this change with ahandleTopChange
method just as the above example shows.
Configure texts in top and bottom DOM
If you decide not to customize HTML templates, you can configure the texts that comes with loadmore
. Take the top DOM for example, corresponding to the three top-status
states, configurable options are: topPullText
, topDropText
and topLoadingText
. And bottomPullText
, bottomDropText
and bottomLoadingText
are for the bottom DOM.
Auto fill
Upon loaded, loadmore
will automatically check if it is tall enough to fill its container. If not, bottom-method
will run until its container is filled. Turn off auto-fill
if you'd rather handle this manually.
API
option | description | type | acceptable values | default |
---|---|---|---|---|
autoFill | if true , loadmore will check and fill its container | Boolean | true | |
distanceIndex | the ratio between the distance of the finger moves and the component scrolls | Number | 2 | |
maxDistance | maximum distance(in pixel) the component can scroll. Can be disabled by setting it to 0 | Number | 0 | |
topPullText | top text when the component is being pulled down | String | '下拉刷新' | |
topDropText | top text when the component is ready to drop | String | '释放更新' | |
topLoadingText | top text while topMethod is running | String | '加载中...' | |
topDistance | distance threshold that triggers topMethod (in pixel) | Number | 70 | |
topMethod | upward load-more function | Function | ||
bottomPullText | bottom text when the component is being pulled up | String | '上拉刷新' | |
bottomDropText | bottom text when the component is ready to drop | String | '释放更新' | |
bottomLoadingText | bottom text while bottomMethod is running | String | '加载中...' | |
bottomDistance | distance threshold that triggers bottomMethod (in pixel) | Number | 70 | |
bottomMethod | downward load-more function | Function | ||
bottomAllLoaded | if true , bottomMethod can no longer be triggered | Boolean | false |
Events
event name | description | parameters |
---|---|---|
top-status-change | the callback when the component's top status changes | current top status |
bottom-status-change | the callback when the component's bottom status changes | current bottom status |
Slot
name | description |
---|---|
- | data list |
top | custom top HTML template |
bottom | custom bottom HTML template |
License
MIT