amis/carousel.md at 4032e4c5996a21b7c651938694535008ac5dceeb

test/amis

mirror of https://gitee.com/baidu/amis.git synced 2024-12-15 09:21:13 +08:00

lvxiaojiao bbbc804943 chore:事件动作文档补充demo

2023-05-28 22:26:48 +08:00

13 KiB

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title	description	type	group	menuName	icon	order
Carousel 轮播图		0	⚙ 组件	Carousel 幻灯片		33

基本用法

{
    "type": "carousel",
    "auto": false,
    "thumbMode": "cover",
    "animation": "slide",
    "height": 300,
    "options": [
        {
            "image": "https://internal-amis-res.cdn.bcebos.com/images/2019-12/1577157239810/da6376bf988c.png"
        },
        {
            "html": "<div style=\"width: 100%; height: 300px; background: #e3e3e3; text-align: center; line-height: 300px;\">carousel data</div>"
        },
        {
            "thumbMode": "contain",
            "image": "https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=3893101144,2877209892&fm=23&gp=0.jpg"
        }
    ]
}

动态列表

轮播图组件目前没有获取数据的配置，因此需要依赖 service 来获取数据。

{
  "type": "page",
  "body": {
    "type": "service",
    "api": "/api/mock2/options/carousel",
    "body": {
      "type": "carousel",
      "name": "imageList"
    }
  }
}

目前数据关联是通过 name 的方式，因此 api 返回应该是类似这样的：

{
    status: 0,
    msg: '',
    data: {
        imageList: [{
            "image": "https://internal-amis-res.cdn.bcebos.com/images/2019-12/1577157239810/da6376bf988c.png"
        }]
    }
}

其中的 imageList 要和配置的 name 值对应。

点击图片打开外部链接

1.3.3 及以上版本

需要放回的字段中除了前面的 image，还有 href 属性

{
  "type": "page",
  "data": {
    "imageList": [
      {
        "image": "https://internal-amis-res.cdn.bcebos.com/images/2019-12/1577157239810/da6376bf988c.png",
        "href": "https://github.com/baidu/amis"
      }
    ]
  },
  "body": {
    "type": "carousel",
    "name": "imageList"
  }
}

自定义轮播图的展现

通过配置 itemSchema 可以自定义轮播图的展现，比如图片默认背景配置是 contain，可以改成 cover：

itemSchema: {
    type: 'tpl',
    tpl: '<div style="background-image: url('<%= data.image %>'); background-size: cover; background-repeat: no-repeat; background-position: center center;" class="image <%= data.imageClassName %>"></div>'
}

多图展示

2.8.1 及以上版本

{
    "type": "carousel",
    "auto": false,
    "thumbMode": "cover",
    "animation": "slide",
    "multiple": {count: 3},
    "interval": 1000,
    "duration": 5000,
    "height": 300,
    "options": [
        {
            "image": "https://internal-amis-res.cdn.bcebos.com/images/2020-1/1578395692722/4f3cb4202335.jpeg@s_0,w_216,l_1,f_jpg,q_80"
        },
        {
            "image": "https://internal-amis-res.cdn.bcebos.com/images/2020-1/1578395692942/d8e4992057f9.jpeg@s_0,w_216,l_1,f_jpg,q_80"
        },
        {
            "image": "https://internal-amis-res.cdn.bcebos.com/images/2020-1/1578395693148/1314a2a3d3f6.jpeg@s_0,w_216,l_1,f_jpg,q_80"
        },
        {
            "image": "https://internal-amis-res.cdn.bcebos.com/images/2020-1/1578395693379/8f2e79f82be0.jpeg@s_0,w_216,l_1,f_jpg,q_80"
        }
    ]
}

属性表

属性名	类型	默认值	说明	版本
type	`string`	`"carousel"`	指定为 Carousel 渲染器
className	`string`	`"panel-default"`	外层 Dom 的类名
options	`array`	`[]`	轮播面板数据
options.image	`string`		图片链接
options.href	`string`		图片打开网址的链接
options.imageClassName	`string`		图片类名
options.title	`string`		图片标题
options.titleClassName	`string`		图片标题类名
options.description	`string`		图片描述
options.descriptionClassName	`string`		图片描述类名
options.html	`string`		HTML 自定义，同Tpl一致
itemSchema	`object`		自定义`schema`来展示数据
auto	`boolean`	`true`	是否自动轮播
interval	`string`	`5s`	切换动画间隔
duration	`number`	`500`	切换动画时长（ms）
width	`string`	`auto`	宽度
height	`string`	`200px`	高度
controls	`array`	`['dots', 'arrows']`	显示左右箭头、底部圆点索引
controlsTheme	`string`	`light`	左右箭头、底部圆点索引颜色，默认`light`，另有`dark`模式
animation	`string`	fade	切换动画效果，默认`fade`，另有`slide`模式
thumbMode	`string`	`"cover" \| "contain"`	图片默认缩放模式
multiple	`object`	`{count: 1}`	多图展示，count 表示展示的数量	`2.8.1`
alwaysShowArrow	`boolean`	`false`	是否一直显示箭头，为 false 时鼠标 hover 才会显示	`2.8.1`
icons	{prev: `SchemaCollection`; next: `SchemaCollection`;}		自定义箭头图标	`2.8.1`

事件表

当前组件会对外派发以下事件，可以通过onEvent来监听这些事件，并通过actions来配置执行的动作，在actions中可以通过${事件参数名}或${event.data.[事件参数名]}来获取事件产生的数据，详细请查看事件动作。

事件名称	事件参数	说明
change	`activeIndex: number` 激活图片的索引 `prevIndex: number` 上一张图片的索引	轮播图切换时触发

change

{
  "type": "carousel",
  "auto": false,
  "thumbMode": "cover",
  "animation": "slide",
  "height": 300,
  "options": [
    {
      "image": "https://internal-amis-res.cdn.bcebos.com/images/2019-12/1577157239810/da6376bf988c.png"
    },
    {
      "html": "<div style=\"width: 100%; height: 300px; background: #e3e3e3; text-align: center; line-height: 300px;\">carousel data</div>"
    },
    {
      "thumbMode": "contain",
      "image": "https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=3893101144,2877209892&fm=23&gp=0.jpg"
    }
  ],
  "onEvent": {
    "change": {
      "actions": [
        {
          "actionType": "toast",
          "args": {
            "msg": "滚动至${activeIndex}"
          }
        }
      ]
    }
  }
}

动作表

当前组件对外暴露以下特性动作，其他组件可以通过指定actionType: 动作名称、componentId: 该组件id来触发这些动作，动作配置可以通过args: {动作配置项名称: xxx}来配置具体的参数，详细请查看事件动作。

动作名称	动作配置	说明
next	-	下一张
prev	-	上一张
goto-image	`activeIndex: number` 切换图片的索引	切换轮播图

[
  {
    "type": "action",
    "label": "下一张",
    "className": "mr-3 mb-3",
    "onEvent": {
      "click": {
        "actions": [
          {
            "actionType": "next",
            "componentId": "carousel_001"
          }
        ]
      }
    }
  },
  {
    "type": "carousel",
    "id": "carousel_001",
    "auto": false,
    "thumbMode": "cover",
    "animation": "slide",
    "height": 300,
    "options": [
      {
        "image": "https://internal-amis-res.cdn.bcebos.com/images/2019-12/1577157239810/da6376bf988c.png"
      },
      {
        "html": "<div style=\"width: 100%; height: 300px; background: #e3e3e3; text-align: center; line-height: 300px;\">carousel data</div>"
      },
      {
        "thumbMode": "contain",
        "image": "https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=3893101144,2877209892&fm=23&gp=0.jpg"
      }
    ]
  }
]

[
  {
    "type": "action",
    "label": "上一张",
    "className": "mr-3 mb-3",
    "onEvent": {
      "click": {
        "actions": [
          {
            "actionType": "prev",
            "componentId": "carousel_002"
          }
        ]
      }
    }
  },
  {
    "type": "carousel",
    "id": "carousel_002",
    "auto": false,
    "thumbMode": "cover",
    "animation": "slide",
    "height": 300,
    "options": [
      {
        "image": "https://internal-amis-res.cdn.bcebos.com/images/2019-12/1577157239810/da6376bf988c.png"
      },
      {
        "html": "<div style=\"width: 100%; height: 300px; background: #e3e3e3; text-align: center; line-height: 300px;\">carousel data</div>"
      },
      {
        "thumbMode": "contain",
        "image": "https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=3893101144,2877209892&fm=23&gp=0.jpg"
      }
    ]
  }
]

goto-image

[
  {
    "type": "action",
    "label": "滚动到第三张",
    "className": "mr-3 mb-3",
    "onEvent": {
      "click": {
        "actions": [
          {
            "actionType": "goto-image",
            "componentId": "carousel_003",
            "args": {
              "activeIndex": "${index}"
            }
          }
        ]
      }
    }
  },
  {
    "type": "carousel",
    "id": "carousel_003",
    "auto": false,
    "thumbMode": "cover",
    "animation": "slide",
    "height": 300,
    "options": [
      {
        "image": "https://internal-amis-res.cdn.bcebos.com/images/2019-12/1577157239810/da6376bf988c.png"
      },
      {
        "html": "<div style=\"width: 100%; height: 300px; background: #e3e3e3; text-align: center; line-height: 300px;\">carousel data</div>"
      },
      {
        "thumbMode": "contain",
        "image": "https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=3893101144,2877209892&fm=23&gp=0.jpg"
      }
    ]
  }
]

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