harmony 鸿蒙toggle

2022-08-09
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toggle

NOTE

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

The <toggle> component allows your user to select from a group of options and may display the selection result in real time. Generally, the option group consists of many toggles.

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	Text value of the toggle.
checked	boolean	false	No	Whether the toggle is selected.

Styles

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

Name	Type	Default Value	Mandatory	Description
text-color	<color>	#E5000000	No	Text color of the toggle.
font-size	<length>	16px	No	Font size of the toggle.
allow-scale	boolean	true	No	Whether the font size changes with the system’s font size settings. If the config-changes tag of fontSize is configured for abilities in the config.json file, the setting takes effect without application restart.
font-style	string	normal	No	Font style of the toggle.
font-weight	number \|string	normal	No	Font weight of the toggle. For details, see font-weight of the <text> component.
font-family	<string>	sans-serif	No	Font family, in which fonts are separated by commas (,). Each font is set using a font name or font family name. The first font in the family or the specified custom font is used for the text.

Events

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

Name	Parameter	Description
change	{ checked: isChecked }	Triggered when the toggle is selected or unselected.

Methods

The universal methods are supported.

Example

<!-- xxx.hml -->
<div style="flex-direction: column;">
  <text class="margin">1. Multiple choice example</text>
  <div style="flex-wrap: wrap">
    <toggle class="margin" for="{{toggles}}">{{$item}}</toggle>
  </div>
  <text class="margin">2. Single choice example</text>
  <div style="flex-wrap: wrap">
    <toggle class="margin" for="{{toggle_list}}" id="{{$item.id}}" checked="{{$item.checked}}" 
      value="{{$item.name}}" @change="allchange" @click="allclick({{$item.id}})"></toggle>
  </div>
</div>

/* xxx.css */
.margin {
  margin: 7px;
}

// xxx.js
export default {
    data: {
        toggle_list: [
            {
                "id": "1001", "name": "Living room", "checked": true
            },
            {
                "id": "1002", "name": "Bedroom", "checked": false
            },
            {
                "id": "1003", "name": "Second bedroom", "checked": false
            },
            {
                "id": "1004", "name": "Kitchen", "checked": false
            },
            {
                "id": "1005", "name": "Study", "checked": false
            },
            {
                "id": "1006", "name": "Garden", "checked": false
            },
            {
                "id": "1007", "name": "Bathroom", "checked": false
            },
            {
                "id": "1008", "name": "Balcony", "checked": false
            },
        ],
        toggles: ["Living room", "Bedroom", "Kitchen", "Study"],
        idx: ""
    },
    allclick(arg) {
        this.idx = arg;
    },
    allchange(e) {
        if (e.checked != true) {
            return;
        }
        for (var i = 0; i < this.toggle_list.length; i++) {
            if (this.toggle_list[i].id === this.idx) {
                this.toggle_list[i].checked = true;
            } else {
                this.toggle_list[i].checked = false;
            }
        }
    }
}

screenshot