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## Transition 过渡动画
> 代码块： `uTransition`
元素的简单过渡动画，组件名：`uni-transition`
### 安装方式
本组件符合[easycom](https://uniapp.dcloud.io/collocation/pages?id=easycom)规范，`HBuilderX 2.5.5`起，只需将本组件导入项目，在页面`template`中即可直接使用，无需在页面中`import`和注册`components`。
如需通过`npm`方式使用`uni-ui`组件，另见文档：[https://ext.dcloud.net.cn/plugin?id=55](https://ext.dcloud.net.cn/plugin?id=55)
### 基本用法
在 ``template`` 中使用组件
```html
< template >
< view >
< button type = "primary" > fade</ button >
< uni-transition :mode-class = "['fade']" :styles = "{'width':'100px','height':'100px';'backgroundColor':'red'}" :show = "show" @ change = "change" />
</ view >
</ template >
```
``` javascript
import uniTransition from '@/components/uni-transition/uni-transition.vue'
export default {
components: {
uniTransition
},
data() {
return {
show: false,
}
},
onLoad() {},
methods: {
open(mode) {
this.show = !this.show
},
change() {
console.log('触发动画')
}
}
}
```
## API
### Transition Props
|属性名 |类型 |默认值 |说明 |
|:-: |:-: |:-: |:-:|
|show |Boolean|false |控制组件显示或隐藏， |
|modeClass |Array |- |过渡动画类型 |
|duration |Number |300 |过渡动画持续时间 |
|styles |Object |- |组件样式，同 css 样式，注意带’-‘连接符的属性需要使用小驼峰写法如：`backgroundColor:red` |
#### modeClass 类型说明
：
|属性名 |说明 |
|:-: |:-: |
|fade |渐隐渐出过渡 |
|slide-top |由上至下过渡 |
|slide-right |由右至左过渡 |
|slide-bottom |由下至上过渡 |
|slide-left |由左至右过渡 |
|zoom-in |由小到大过渡 |
|zoom-out |由大到小过渡 |
** 注意**
组合使用时， （ ） ，
### Transition Events
|事件称名 |说明 |返回值 |
|:-: |:-: |:-: |
|click |点击组件触发 |- |
|change |过渡动画结束时触发 | e = {detail:true} |
