<mat-list>
is a container component that wraps and formats a series of line items. As the base
list component, it provides Material Design styling, but no behavior of its own.
An <mat-list>
element contains a number of <mat-list-item>
elements.
<mat-list>
<mat-list-item> Pepper </mat-list-item>
<mat-list-item> Salt </mat-list-item>
<mat-list-item> Paprika </mat-list-item>
</mat-list>
Use mat-nav-list
tags for navigation lists (i.e. lists that have anchor tags).
Simple navigation lists can use the mat-list-item
attribute on anchor tag elements directly:
<mat-nav-list>
<a mat-list-item href="..." *ngFor="let link of links"> {{ link }} </a>
</mat-nav-list>
For more complex navigation lists (e.g. with more than one target per item), wrap the anchor
element in an <mat-list-item>
.
<mat-nav-list>
<mat-list-item *ngFor="let link of links">
<a matLine href="...">{{ link }}</a>
<button mat-icon-button (click)="showInfo(link)">
<mat-icon>info</mat-icon>
</button>
</mat-list-item>
</mat-nav-list>
Use the <mat-action-list>
element when each item in the list performs some action. Each item
in an action list is a <button>
element.
Simple action lists can use the mat-list-item
attribute on button tag elements directly:
<mat-action-list>
<button mat-list-item (click)="save()"> Save </button>
<button mat-list-item (click)="undo()"> Undo </button>
</mat-action-list>
A selection list provides an interface for selecting values, where each list item is an option.
Options selected: 0
The options within a selection-list should not contain further interactive controls, such as buttons and anchors.
For lists that require multiple lines per item, annotate each line with an matLine
attribute.
Whichever heading tag is appropriate for your DOM hierarchy should be used (not necessarily <h3>
as shown in the example).
<!-- two line list -->
<mat-list>
<mat-list-item *ngFor="let message of messages">
<h3 matLine> {{message.from}} </h3>
<p matLine>
<span> {{message.subject}} </span>
<span class="demo-2"> -- {{message.content}} </span>
</p>
</mat-list-item>
</mat-list>
<!-- three line list -->
<mat-list>
<mat-list-item *ngFor="let message of messages">
<h3 matLine> {{message.from}} </h3>
<p matLine> {{message.subject}} </p>
<p matLine class="demo-2"> {{message.content}} </p>
</mat-list-item>
</mat-list>
To add an icon to your list item, use the matListIcon
attribute.
<mat-list>
<mat-list-item *ngFor="let message of messages">
<mat-icon matListIcon>folder</mat-icon>
<h3 matLine> {{message.from}} </h3>
<p matLine>
<span> {{message.subject}} </span>
<span class="demo-2"> -- {{message.content}} </span>
</p>
</mat-list-item>
</mat-list>
To include an avatar image, add an image tag with an matListAvatar
attribute.
<mat-list>
<mat-list-item *ngFor="let message of messages">
<img matListAvatar src="..." alt="...">
<h3 matLine> {{message.from}} </h3>
<p matLine>
<span> {{message.subject}} </span>
<span class="demo-2"> -- {{message.content}} </span>
</p>
</mat-list-item>
</mat-list>
Lists are also available in "dense layout" mode, which shrinks the font size and height of the list
to suit UIs that may need to display more information. To enable this mode, add a dense
attribute
to the main mat-list
tag.
<mat-list dense>
<mat-list-item> Pepper </mat-list-item>
<mat-list-item> Salt </mat-list-item>
<mat-list-item> Paprika </mat-list-item>
</mat-list>
Subheader can be added to a list by annotating a heading tag with an matSubheader
attribute.
To add a divider, use <mat-divider>
.
<mat-list>
<h3 matSubheader>Folders</h3>
<mat-list-item *ngFor="let folder of folders">
<mat-icon matListIcon>folder</mat-icon>
<h4 matLine>{{folder.name}}</h4>
<p matLine class="demo-2"> {{folder.updated}} </p>
</mat-list-item>
<mat-divider></mat-divider>
<h3 matSubheader>Notes</h3>
<mat-list-item *ngFor="let note of notes">
<mat-icon matListIcon>note</mat-icon>
<h4 matLine>{{note.name}}</h4>
<p matLine class="demo-2"> {{note.updated}} </p>
</mat-list-item>
</mat-list>
The type of list used in any given situation depends on how the end-user will be interacting with the it.
When the list-items navigate somewhere, <mat-nav-list>
should be used with <a mat-list-item>
elements as the list items. The nav-list will be rendered using role="navigation"
and can be
given an aria-label
to give context on the set of navigation options presented. Additional
interactive content, such as buttons, should not be added inside the anchors.
When the list is primarily used to select one or more values, a <mat-selection-list>
should be
used with <mat-list-option>
, which map to role="listbox"
and role="option"
, respectively. The
list should be given an aria-label
that describes the value or values being selected. Each option
should not contain any additional interactive elements, such as buttons.
By default, the list assumes that it will be used in a purely decorative fashion and thus sets no
roles, ARIA attributes, or keyboard shortcuts. This is equivalent to having a sequence of <div>
elements on the page. Any interactive content within the list should be given an appropriate
accessibility treatment based on the specific workflow of your application.
If the list is used to present a list of non-interactive content items, then the list element should
be given role="list"
and each list item should be given role="listitem"
.