目录

qrcode

This component is supported since API version 5. Updates will be marked with a superscript to indicate their earliest API version.

The <qrcode> component is used to generate and display a QR code.

Required Permissions

None

Child Components

Not supported

Attributes

In addition to the universal attributes, the following attributes are supported.

Name Type Default Value Mandatory Description
value string - Yes Content used to generate the QR code.
type string rect No

QR code type. Available values are as follows:

- rect: rectangular QR code.

- circle: round QR code.

Styles

In addition to the universal styles, the following styles are supported.

Name Type Default Value Mandatory Description
color <color> #000000 No Color of the QR code.
background-color <color> #ffffff No Background color of the QR code.

  • If the values of width and height are different, the smaller value is used as the length of the QR code. The generated QR code is centered.

  • If either width or height is set, the value is used as the length of the QR code. If neither of them is set, the default length 200 px is used.

  • If the generated QR code is unavailable, see Scan Kit.

Events

The universal events are supported.

Methods

The universal methods are supported.

Example

<!-- xxx.hml -->
<div class="container">
  <qrcode value="{{qr_value}}" type="{{qr_type}}"
  style="color: {{qr_col}};background-color: {{qr_bcol}};width: {{qr_size}};height: {{qr_size}};margin-bottom: 70px;"></qrcode>
  <text class="txt">Type</text>
  <switch showtext="true" checked="true" texton="rect" textoff="circle" onchange="setType"></switch>
  <text class="txt">Color</text>
  <select onchange="setCol">
    <option for="{{col_list}}" value="{{$item}}">{{$item}}</option>
  </select>
  <text class="txt">Background Color</text>
  <select onchange="setBCol">
    <option for="{{bcol_list}}" value="{{$item}}">{{$item}}</option>
  </select>
</div>
/* xxx.css */
.container {
  width: 100%;
  height: 100%;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.txt {
  margin: 30px;
  color: orangered;
}
select{
  margin-top: 40px;
  margin-bottom: 40px;
}
/* index.js */
export default {
  data: {
    qr_type: 'rect',
    qr_size: '300px',
    qr_col: '#87ceeb',
    col_list: ['#87ceeb','#fa8072','#da70d6','#80ff00ff','#00ff00ff'],
    qr_bcol: '#f0ffff',
    bcol_list: ['#f0ffff','#ffffe0','#d8bfd8']
  },
  setType(e) {
    if (e.checked) {
      this.qr_type = 'rect'
    } else {
      this.qr_type = 'circle'
    }
  },
  setCol(e) {
    this.qr_col = e.newValue
  },
  setBCol(e) {
    this.qr_bcol = e.newValue
  }
}