微信小程序官方组件展示之视图容器movable-area源码

软件事业部

发布于 2022-08-16 16:09:08

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发布于 2022-08-16 16:09:08

文章被收录于专栏：软件事业部专栏软件事业部专栏

以下将展示微信小程序之视图容器movable-area官方组件能力，组件样式仅供参考，开发者可根据自身需求定义组件样式，具体属性参数详见小程序开发文档。

功能描述：

movable-view的可移动区域。

属性说明：

属性	类型	默认值	必填	说明	最低版本
scale-area	Boolean	FALSE	否	当里面的 movable-view 设置为支持双指缩放时，设置此值可将缩放手势生效区域修改为整个movable-area	1.9.90

Bug & Tip

1.tip: movable-area 必须设置 width 和height属性，不设置默认为10px**

2.tip: 当 movable-view 小于 movable-area 时，movable-view的移动范围是在 movable-area 内；

3.tip: 当 movable-view 大于 movable-area 时，movable-view的移动范围必须包含movable-area（x轴方向和 y 轴方向分开考虑）

4.tip: 若当前组件所在的页面或全局开启了 enablePassiveEvent 配置项，该内置组件可能会出现非预期表现（详情参考 enablePassiveEvent 文档）

示例代码

JAVASCRIPT

Page({
  onShareAppMessage() {
    return {
      title: 'movable-view',
      path: 'page/component/pages/movable-view/movable-view'
    }
  },

  data: {
    x: 0,
    y: 0,
    scale: 2,
  },

  tap() {
    this.setData({
      x: 30,
      y: 30
    })
  },

  tap2() {
    this.setData({
      scale: 3
    })
  },

  onChange(e) {
    console.log(e.detail)
  },

  onScale(e) {
    console.log(e.detail)
  }
})

WXML：

<view class="container">

  <view class="page-body">
    <view class="page-section">
      <view class="page-section-title first">movable-view区域小于movable-area</view>
      <movable-area>
        <movable-view x="{{x}}" y="{{y}}" direction="all">text</movable-view>
      </movable-area>
    </view>
    <view class="btn-area">
      <button bindtap="tap" class="page-body-button" type="primary">点击移动到 (30px, 30px)</button>
    </view>

    <view class="page-section">
      <view class="page-section-title">movable-view区域大于movable-area</view>
      <movable-area>
        <movable-view class="max" direction="all">text</movable-view>
      </movable-area>
    </view>

    <view class="page-section">
      <view class="page-section-title">只可以横向移动</view>
      <movable-area>
        <movable-view direction="horizontal">text</movable-view>
      </movable-area>
    </view>

    <view class="page-section">
      <view class="page-section-title">只可以纵向移动</view>
      <movable-area>
        <movable-view direction="vertical">text</movable-view>
      </movable-area>
    </view>

    <view class="page-section">
      <view class="page-section-title">可超出边界</view>
      <movable-area>
        <movable-view direction="all" out-of-bounds>text</movable-view>
      </movable-area>
    </view>

    <view class="page-section">
      <view class="page-section-title">带有惯性</view>
      <movable-area>
        <movable-view direction="all" inertia>text</movable-view>
      </movable-area>
    </view>

    <view class="page-section">
      <view class="page-section-title">可放缩</view>
      <movable-area scale-area>
        <movable-view direction="all" bindchange="onChange" bindscale="onScale" scale scale-min="0.5" scale-max="4" scale-value="{{scale}}">text</movable-view>
      </movable-area>
    </view>

    <view class="btn-area">
      <button bindtap="tap2" class="page-body-button" type="primary">点击放大3倍</button>
    </view>
  </view>

</view>