harmony 鸿蒙dialog

2022-08-09
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dialog

NOTE

This component is supported since API version 4. Updates will be marked with a superscript to indicate their earliest API version.

The <dialog> component is a custom dialog box.

Required Permissions

None

Child Components

This component supports only one child component.

Attributes

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

Name	Type	Default Value	Mandatory	Description
dragable⁷⁺	boolean	false	No	Whether the dialog box can be dragged.

NOTE

The <dialog> component does not support the focusable and click-effect attributes.

Styles

Only the width, height, margin, margin-[left|top|right|bottom], and margin-[start|end] styles in Universal Styles are supported.

Events

The following events are supported. The universal events are not supported.

Name	Parameter	Description
cancel	-	Triggered when a user touches an area outside the dialog box to cancel the dialog box.
show⁷⁺	-	Triggered when the dialog box is displayed.
close⁷⁺	-	Triggered when the dialog box is closed.

Methods

The following methods are supported. The universal methods are not supported.

Name	Parameter	Description
show	-	Shows a dialog box.
close	-	Close the dialog box.

NOTE

Attributes and styles of a <dialog> component cannot be dynamically updated.

Example

<!-- xxx.hml -->
<div class="doc-page">
  <div class="btn-div">
    <button type="capsule" value="Click here" class="btn" onclick="showDialog"></button>
  </div>
  <dialog id="simpledialog" dragable="true" class="dialog-main" oncancel="cancelDialog">
    <div class="dialog-div">
      <div class="inner-txt">
        <text class="txt" ondoubleclick="doubleclick">Simple dialog</text>
      </div>
      <div class="inner-btn">
        <button type="capsule" value="Cancel" onclick="cancelSchedule" class="btn-txt"></button>
        <button type="capsule" value="Confirm" onclick="setSchedule" class="btn-txt"></button>
      </div>
    </div>
  </dialog>
</div>

/* xxx.css */
.doc-page {
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.btn-div {
  width: 100%;
  height: 200px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.btn {
  background-color: #F2F2F2;
  text-color: #0D81F2;
}
.txt {
  color: #000000;
  font-weight: bold;
  font-size: 39px;
}
.dialog-main {
  width: 500px;
}
.dialog-div {
  flex-direction: column;
  align-items: center;
}
.inner-txt {
  width: 400px;
  height: 160px;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
}
.inner-btn {
  width: 400px;
  height: 120px;
  justify-content: space-around;
  align-items: center;
}
.btn-txt {
  background-color: #F2F2F2;
  text-color: #0D81F2;
}

// xxx.js
import promptAction from '@ohos.promptAction';
export default {
  showDialog() {
    this.$element('simpledialog').show()
  },
  cancelDialog() {
    promptAction.showToast({
      message: 'Dialog cancelled'
    })
  },
  cancelSchedule() {
    this.$element('simpledialog').close()
    promptAction.showToast({
      message: 'Successfully cancelled'
    })
  },
  setSchedule() {
    this.$element('simpledialog').close()
    promptAction.showToast({
      message: 'Successfully confirmed'
    })
  },
  doubleclick(){
    promptAction.showToast({
      message: 'doubleclick'
    })
  }
}