使用 Vue 3 和 Typescript 的 Flickity API

Question

我一直在我的 Vue 3 应用程序中使用 Flickity，当我使用带有静态单元格的硬编码 HTML 轮播时它工作正常。但是，我需要在运行时间以编程方式添加单元格，但我无法让 Flickity API 正常工作。

我尝试按照 append() 示例进行操作，但出现错误：

flickity.js?1385:72 Bad element for Flickity: .carousel

在我的检查员运行时间内。我尝试遵循解决方案 and here，但都无法运行成功。看起来这是由于 Flickity 库上的 TypeScript 错误造成的。我也安装了@types/flickity，仅供参考。

我该怎么做才能修复下面的 append 逻辑？

<template>
        <div class="row">
          <div class="col d-block m-auto payment-option">
            <flickity ref="carousel" :options="flickityOptions">
            </flickity>
          </div>
      </div>
</template>

<script lang="ts">
import {defineComponent} from "vue";
//import Flickity from 'vue-flickity/src/flickity.vue';
import Flickity from 'flickity'
export default defineComponent({
  name: "PageName",
  components: {
    Flickity
  },
  data() {
    return {
      flickityOptions: {
        initialIndex: 3,
        prevNextButtons: false,
        pageDots: true,
        wrapAround: true
      }
    };
  },
  methods: {
    createBankAccountCarousel(flkty: Flickity) {
      flkty.append(this.makeFlickityCell())
    },
    makeFlickityCell() {
      const cell = document.createElement('div');
      cell.className = 'carousel-cell'
      cell.textContent = "Hi"
      return cell
    }
  },
  mounted() {
    let flkty = new Flickity(this.$refs.carousel)
    this.createBankAccountCarousel(flkty)
  }
});
</script>

Answer 1

看起来您可能正在尝试 vue-flickity in Vue 3, but that component was built for Vue 2。

您可以在 Vue 3 中创建自己的 Flickity 组件：

使用以下模板和脚本创建 Flickity.vue，它应用 template ref on the root element, and contains a slot 来接收 .carousel-cell 元素：

<template>
  <!--  template ref -->
  <div ref="root" class="flickity">
    <slot />
  </div>
</template>

<script lang="ts">
import { defineComponent, ref } from 'vue'

export default defineComponent({
  setup() {
    const root = ref<HTMLElement | null>(null) // reference to template ref named "root"
    return {
      root,
    }
  }
})
</script>

声明一个 options prop，稍后我们将把它传递给 Flickity 构造函数。

<script lang="ts">
import { defineComponent } from 'vue'

export default defineComponent({
  props: {
    options: Object,
  }
})
</script>

在组件的mounted hook, instantiate Flickity with the "root" template ref and the options prop; and in unmounted中，销毁Flickity实例：

<script lang="ts">
import { defineComponent, onMounted, onUnmounted } from 'vue'
import Flickity from 'flickity'

export default defineComponent({
  setup(props) {
    let flickity: typeof Flickity | null = null
    onMounted(() => flickity = new Flickity(root.value as HTMLElement, props.options))
    onUnmounted(() => flickity?.destroy())
  }
})
</script>

添加名为 "append" 的方法以允许将新元素附加到轮播：

<script lang="ts">
import { defineComponent } from 'vue'
import Flickity from 'flickity'

export default defineComponent({
  setup() {
    let flickity: typeof Flickity | null = null
    return {
      append(element: HTMLElement) {
        flickity?.append(element)
        flickity?.select(-1)
      }
    }
  }
})
</script>

使用以下类型声明创建 src/flickity.d.ts（如果使用 VS Code，您必须重新启动 IDE 才能对这些类型进行索引）：

declare module 'flickity' {
  const Flickity: {
    new (el: string | HTMLElement, options?: Record<string, unknown>): this
    append(element: HTMLElement)
    destroy()
    select(id: string | number)
  }
  export = Flickity
}

添加以下 <style> 块，它引入 flickity 默认样式，并设置将在插槽中接收的 .carousel-cell 元素的样式：

<style scoped>
@import '~flickity/dist/flickity.css';

.flickity .carousel {
  background: #EEE;
  margin-bottom: 40px;
}
/* use ::v-deep to get at slot elements */
.flickity::v-deep .carousel-cell {
  height: 200px;
  width: 25%;
  margin: 0 10px;
  background: #6C6;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}
</style>

用法示例：

<template>
  <div class="app">
    <flickity ref="flickity" :options="flickityOptions">
      <div class="carousel-cell">1</div>
      <div class="carousel-cell">2</div>
      <div class="carousel-cell">3</div>
    </flickity>
    <div class="actions">
      <button @click="addElement">Append element</button>
    </div>
  </div>
</template>

<script lang="ts">
import { defineComponent } from 'vue'
import Flickity from './components/Flickity.vue'

export default defineComponent({
  name: 'App',
  components: {
    Flickity
  },
  data() {
    return {
      flickityOptions: {
        pageDots: true,
        wrapAround: true,
      }
    }
  },
  methods: {
    addElement() {
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      (this.$refs.flickity as any).append(this.makeFlickityCell())
    },
    makeFlickityCell() {
      const cell = document.createElement('div')
      cell.className = 'carousel-cell'
      cell.textContent = 'Hi'
      return cell
    }
  }
})
</script>

<style scoped>
.app {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  height: 50vh;
}
</style>

demo

使用 Vue 3 和 Typescript 的 Flickity API

Flickity API with Vue 3 and Typescript

javascript

typescript

vue.js

flickity

vuejs3

用法示例：