harmony 鸿蒙progress

2023-06-24
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progress

The <Progress> component is used to provide a progress bar that displays the progress of content loading or an operation.

NOTE

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

Child Components

Not supported

Attributes

Name	Type	Default Value	Mandatory	Description
type	string	horizontal	No	Type of the progress bar, which cannot be changed dynamically. Available values are as follows: - horizontal: linear progress bar. - arc: arc progress bar.
id	string	-	No	Unique ID of the component.
style	string	-	No	Style declaration of the component.
class	string	-	No	Style class of the component, which is used to refer to a style table.
ref	string	-	No	Reference information of child elements, which is registered with the parent component on $refs.

Different types of progress bars support different attributes.

When type is set to horizontal, the following attributes are supported. |Name|Type|Default Value|Mandatory|Description| |——–|——–|——–|——–|——–| |percent|number|0|No|Current progress. The value ranges from 0 to 100.|
When type is set to arc, the following attributes are supported. |Name|Type|Default Value|Mandatory|Description| |——–|——–|——–|——–|——–| |percent|number|0|No|Current progress. The value ranges from 0 to 100.|

Events

Name	Parameter	Description
click	-	Triggered when the component is clicked.
longpress	-	Triggered when the component is long pressed.
swipe⁵⁺	SwipeEvent	Triggered when a user quickly swipes on the component.

Styles

When type is set to horizontal, the following styles are supported.

Name	Type	Default Value	Mandatory	Description
color	<color>	#6b9ac7	No	Color of the progress bar.
stroke-width	<length>	32^1-4\|4⁵⁺px	No	Stroke width of the progress bar.

When type is set to arc, the following styles are supported.

Name	Type	Default Value	Mandatory	Description
color	<color>	-	No	Color of the arc progress bar.
background-color	<color>	-	No	Background color of the arc progress bar.
stroke-width	<length>	-	No	Width of the arc progress bar. A larger width value means that the progress bar is closer to the center of the circle. The width is always within the radius range.
start-angle	<deg>	240	No	Start angle of the arc progress bar, which starts from the direction of zero o’clock. The value ranges from 0 to 360 degrees (clockwise).
total-angle	<deg>	240	No	Total length of the arc progress bar. The value ranges from –360 to 360. A negative number indicates anticlockwise.
center-x	<length>	-	No	Center of the arc progress bar (with the upper left corner of this widget as the coordinate origin). This style must be used together with center-y and radius.
center-y	<length>	-	No	Center of the arc progress bar (with the upper left corner of this widget as the coordinate origin). This style must be used together with center-x and radius.
radius	<length>	-	No	Radius of the arc progress bar. This style must be used together with center-x and center-y.

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

Name	Type	Default Value	Mandatory	Description
width	<length> \|<percentage>⁵⁺	-	No	Component width. If this attribute is not set, the default value 0 is used.
height	<length> \|<percentage>⁵⁺	-	No	Component height. If this attribute is not set, the default value 0 is used.
padding	<length>	0	No	Shorthand attribute to set the padding for all sides. The attribute can have one to four values: - If you set only one value, it specifies the padding for all the four sides. - If you set two values, the first value specifies the top and bottom padding, and the second value specifies the left and right padding. - If you set three values, the first value specifies the top padding, the second value specifies the left and right padding, and the third value specifies the bottom padding. - If you set four values, they respectively specify the padding for top, right, bottom, and left sides (in clockwise order).
padding-[left\|top\|right\|bottom]	<length>	0	No	Left, top, right, and bottom padding.
margin	<length> \|<percentage>⁵⁺	0	No	Shorthand attribute to set the margin for all sides. The attribute can have one to four values: - If you set only one value, it specifies the margin for all the four sides. - If you set two values, the first value specifies the top and bottom margins, and the second value specifies the left and right margins. - If you set three values, the first value specifies the top margin, the second value specifies the left and right margins, and the third value specifies the bottom margin. - If you set four values, they respectively specify the margin for top, right, bottom, and left sides (in clockwise order).
margin-[left\|top\|right\|bottom]	<length> \|<percentage>⁵⁺	0	No	Left, top, right, and bottom margins.
border-width	<length>	0	No	Shorthand attribute to set the margin for all sides.
border-color	<color>	black	No	Shorthand attribute to set the color for all borders.
border-radius	<length>	-	No	Radius of round-corner borders.
display	string	flex	No	How and whether to display the box containing an element. Available values are as follows: - flex: flexible layout - none: not rendered
[left\|top]	<length> \|<percentage>⁶⁺	-	No	Edge of the element. - left: left edge position of the element. This attribute defines the offset between the left edge of the margin area of a positioned element and left edge of its containing block. - top: top edge position of the element. This attribute defines the offset between the top edge of a positioned element and that of a block included in the element.

Example

<!-- xxx.hml -->
<div class="container">
  <progress type="horizontal" percent="{{horizontalVal}}" style="height: 10%;width: 40%;" onclick = "changeHorizontal"></progress>
  <progress type="arc" class="min-progress" percent="{{arcVal}}" on:click="changeArc"></progress>
</div>

/* xxx.css */
.container {
  flex-direction: column;
  height: 100%;
  width: 100%;
  align-items: center;
}
.min-progress {
  width: 300px;
  height: 300px;
}

// xxx.js
export default {
  data: {
    arcVal: 0,
    horizontalVal: 0
  },
  changeArc() {
    this.arcVal+= 10;
  },
  changeHorizontal() {
    this.horizontalVal+= 10;
  }
}

progress