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160 lines
3.0 KiB
Markdown
160 lines
3.0 KiB
Markdown
# CountDown
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### Install
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```js
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import Vue from 'vue';
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import { CountDown } from 'vant';
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Vue.use(CountDown);
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```
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## Usage
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### Basic Usage
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```html
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<van-count-down :time="time" />
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```
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```js
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export default {
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data() {
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return {
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time: 30 * 60 * 60 * 1000
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};
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}
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}
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```
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### Custom Format
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```html
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<van-count-down :time="time" format="DD Day, HH:mm:ss" />
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```
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### Millisecond
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```html
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<van-count-down millisecond :time="time" format="HH:mm:ss:SS" />
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```
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### Custom Style
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```html
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<van-count-down :time="time">
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<template v-slot="timeData">
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<span class="item">{{ timeData.hours }}</span>
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<span class="item">{{ timeData.minutes }}</span>
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<span class="item">{{ timeData.seconds }}</span>
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</template>
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</van-count-down>
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<style>
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.item {
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display: inline-block;
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width: 22px;
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margin-right: 5px;
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color: #fff;
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font-size: 12px;
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text-align: center;
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background-color: #1989fa;
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}
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</style>
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```
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### Manual Control
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```html
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<van-count-down
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ref="countDown"
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millisecond
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:time="3000"
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:auto-start="false"
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format="ss:SSS"
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@finish="finish"
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/>
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<van-grid clickable :column-num="3">
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<van-grid-item text="Start" icon="play-circle-o" @click="start" />
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<van-grid-item text="Pause" icon="pause-circle-o" @click="pause" />
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<van-grid-item text="Reset" icon="replay" @click="reset" />
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</van-grid>
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```
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```js
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import { Toast } from 'vant';
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export default {
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methods: {
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start() {
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this.$refs.countDown.start();
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},
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pause() {
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this.$refs.countDown.pause();
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},
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reset() {
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this.$refs.countDown.reset();
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},
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finish() {
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Toast('Finished');
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}
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}
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}
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```
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## API
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### Props
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| Attribute | Description | Type | Default |
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|------|------|------|------|
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| time | Total time | *number \| string* | `0` |
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| format | Time format | *string* | `HH:mm:ss` |
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| auto-start | Whether to auto start count down | *boolean* | `true` |
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| millisecond | Whether to enable millisecond render | *boolean* | `false` |
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### Available formats
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| Format | Description |
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|------|------|
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| DD | Day |
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| HH | Hour |
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| mm | Minute |
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| ss | Second |
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| S | Millisecond, 1-digit |
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| SS | Millisecond, 2-digits |
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| SSS | Millisecond, 3-digits |
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### Events
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| Event | Description | Arguments |
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|------|------|------|
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| finish | Triggered when count down finished | - |
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| change `v2.4.4` | Triggered when count down changed | *timeData: TimeData* |
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### Slots
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| Name | Description | SlotProps |
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|------|------|------|
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| default | Custom Content | *timeData: TimeData* |
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### TimeData Structure
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| Name | Description | Type |
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|------|------|------|
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| days | Remain days | *number* |
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| hours | Remain hours | *number* |
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| minutes | Remain minutes | *number* |
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| seconds | Remain seconds | *number* |
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| milliseconds | Remain milliseconds | *number* |
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### Methods
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Use [ref](https://vuejs.org/v2/api/#ref) to get CountDown instance and call instance methods
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| Name | Description | Attribute | Return value |
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|------|------|------|------|
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| start | Start count down | - | - |
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| pause | Pause count down | - | - |
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| reset | Reset count down | - | - |
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