Ionic/core/src/components/button/readme.md

18 KiB

ion-button

Buttons provide a clickable element, which can be used in forms, or anywhere that needs simple, standard button functionality. They may display text, icons, or both. Buttons can be styled with several attributes to look a specific way.

Expand

This attribute lets you specify how wide the button should be. By default, buttons are inline blocks, but setting this attribute will change the button to a full-width block element.

Value Details
block Full-width button with rounded corners.
full Full-width button with square corners and no border on the left or right.

Fill

This attributes determines the background and border color of the button. By default, buttons have a solid background unless the button is inside of a toolbar, in which case it has a transparent background.

Value Details
clear Button with a transparent background that resembles a flat button.
outline Button with a transparent background and a visible border.
solid Button with a filled background. Useful for buttons in a toolbar.

Size

This attribute specifies the size of the button. Setting this attribute will change the height and padding of a button.

Value Details
small Button with less height and padding. Default for buttons in an item.
default Button with the default height and padding. Useful for buttons in an item.
large Button with more height and padding.

Usage

Angular / javascript

<!-- Default -->
<ion-button>Default</ion-button>

<!-- Anchor -->
<ion-button href="#">Anchor</ion-button>

<!-- Colors -->
<ion-button color="primary">Primary</ion-button>
<ion-button color="secondary">Secondary</ion-button>
<ion-button color="tertiary">Tertiary</ion-button>
<ion-button color="success">Success</ion-button>
<ion-button color="warning">Warning</ion-button>
<ion-button color="danger">Danger</ion-button>
<ion-button color="light">Light</ion-button>
<ion-button color="medium">Medium</ion-button>
<ion-button color="dark">Dark</ion-button>

<!-- Expand -->
<ion-button expand="full">Full Button</ion-button>
<ion-button expand="block">Block Button</ion-button>

<!-- Round -->
<ion-button shape="round">Round Button</ion-button>

<!-- Fill -->
<ion-button expand="full" fill="outline">Outline + Full</ion-button>
<ion-button expand="block" fill="outline">Outline + Block</ion-button>
<ion-button shape="round" fill="outline">Outline + Round</ion-button>

<!-- Icons -->
<ion-button>
  <ion-icon slot="start" name="star"></ion-icon>
  Left Icon
</ion-button>

<ion-button>
  Right Icon
  <ion-icon slot="end" name="star"></ion-icon>
</ion-button>

<ion-button>
  <ion-icon slot="icon-only" name="star"></ion-icon>
</ion-button>

<!-- Sizes -->
<ion-button size="large">Large</ion-button>
<ion-button>Default</ion-button>
<ion-button size="small">Small</ion-button>

React

import React from 'react';

import { IonButton, IonIcon, IonContent } from '@ionic/react';

export const ButtonExample: React.FC = () => (
  <IonContent>
    {/*-- Default --*/}
    <IonButton>Default</IonButton>

    {/*-- Anchor --*/}
    <IonButton href="#">Anchor</IonButton>

    {/*-- Colors --*/}
    <IonButton color="primary">Primary</IonButton>
    <IonButton color="secondary">Secondary</IonButton>
    <IonButton color="tertiary">Tertiary</IonButton>
    <IonButton color="success">Success</IonButton>
    <IonButton color="warning">Warning</IonButton>
    <IonButton color="danger">Danger</IonButton>
    <IonButton color="light">Light</IonButton>
    <IonButton color="medium">Medium</IonButton>
    <IonButton color="dark">Dark</IonButton>

    {/*-- Expand --*/}
    <IonButton expand="full">Full Button</IonButton>
    <IonButton expand="block">Block Button</IonButton>

    {/*-- Round --*/}
    <IonButton shape="round">Round Button</IonButton>

    {/*-- Fill --*/}
    <IonButton expand="full" fill="outline">Outline + Full</IonButton>
    <IonButton expand="block" fill="outline">Outline + Block</IonButton>
    <IonButton shape="round" fill="outline">Outline + Round</IonButton>

    {/*-- Icons --*/}
    <IonButton>
      <IonIcon slot="start" name="star" />
      Left Icon
    </IonButton>

    <IonButton>
      Right Icon
      <IonIcon slot="end" name="star" />
    </IonButton>

    <IonButton>
      <IonIcon slot="icon-only" name="star" />
    </IonButton>

    {/*-- Sizes --*/}
    <IonButton size="large">Large</IonButton>
    <IonButton>Default</IonButton>
    <IonButton size="small">Small</IonButton>
  </IonContent>
);

Vue

<template>
  <!-- Default -->
  <ion-button>Default</ion-button>

  <!-- Anchor -->
  <ion-button href="#">Anchor</ion-button>

  <!-- Colors -->
  <ion-button color="primary">Primary</ion-button>
  <ion-button color="secondary">Secondary</ion-button>
  <ion-button color="tertiary">Tertiary</ion-button>
  <ion-button color="success">Success</ion-button>
  <ion-button color="warning">Warning</ion-button>
  <ion-button color="danger">Danger</ion-button>
  <ion-button color="light">Light</ion-button>
  <ion-button color="medium">Medium</ion-button>
  <ion-button color="dark">Dark</ion-button>

  <!-- Expand -->
  <ion-button expand="full">Full Button</ion-button>
  <ion-button expand="block">Block Button</ion-button>

  <!-- Round -->
  <ion-button shape="round">Round Button</ion-button>

  <!-- Fill -->
  <ion-button expand="full" fill="outline">Outline + Full</ion-button>
  <ion-button expand="block" fill="outline">Outline + Block</ion-button>
  <ion-button shape="round" fill="outline">Outline + Round</ion-button>

  <!-- Icons -->
  <ion-button>
    <ion-icon slot="start" name="star"></ion-icon>
    Left Icon
  </ion-button>

  <ion-button>
    Right Icon
    <ion-icon slot="end" name="star"></ion-icon>
  </ion-button>

  <ion-button>
    <ion-icon slot="icon-only" name="star"></ion-icon>
  </ion-button>

  <!-- Sizes -->
  <ion-button size="large">Large</ion-button>
  <ion-button>Default</ion-button>
  <ion-button size="small">Small</ion-button>
</template>

Properties

Property Attribute Description Type Default
buttonType button-type The type of button. string 'button'
color color The color to use from your application's color palette. Default options are: "primary", "secondary", "tertiary", "success", "warning", "danger", "light", "medium", and "dark". For more information on colors, see theming. string | undefined undefined
disabled disabled If true, the user cannot interact with the button. boolean false
download download This attribute instructs browsers to download a URL instead of navigating to it, so the user will be prompted to save it as a local file. If the attribute has a value, it is used as the pre-filled file name in the Save prompt (the user can still change the file name if they want). string | undefined undefined
expand expand Set to "block" for a full-width button or to "full" for a full-width button without left and right borders. "block" | "full" | undefined undefined
fill fill Set to "clear" for a transparent button, to "outline" for a transparent button with a border, or to "solid". The default style is "solid" except inside of a toolbar, where the default is "clear". "clear" | "default" | "outline" | "solid" | undefined undefined
href href Contains a URL or a URL fragment that the hyperlink points to. If this property is set, an anchor tag will be rendered. string | undefined undefined
mode mode The mode determines which platform styles to use. "ios" | "md" undefined
rel rel Specifies the relationship of the target object to the link object. The value is a space-separated list of link types. string | undefined undefined
routerDirection router-direction When using a router, it specifies the transition direction when navigating to another page using href. "back" | "forward" | "root" 'forward'
shape shape The button shape. "round" | undefined undefined
size size The button size. "default" | "large" | "small" | undefined undefined
strong strong If true, activates a button with a heavier font weight. boolean false
target target Specifies where to display the linked URL. Only applies when an href is provided. Special keywords: "_blank", "_self", "_parent", "_top". string | undefined undefined
type type The type of the button. "button" | "reset" | "submit" 'button'

Events

Event Description Type
ionBlur Emitted when the button loses focus. CustomEvent<void>
ionFocus Emitted when the button has focus. CustomEvent<void>

Slots

Slot Description
Content is placed between the named slots if provided without a slot.
"end" Content is placed to the right of the button text in LTR, and to the left in RTL.
"icon-only" Should be used on an icon in a button that has no text.
"start" Content is placed to the left of the button text in LTR, and to the right in RTL.

CSS Custom Properties

Name Description
--background Background of the button
--background-activated Background of the button when pressed. Note: setting this will interfere with the Material Design ripple.
--background-activated-opacity Opacity of the button when pressed
--background-focused Background of the button when focused with the tab key
--background-focused-opacity Opacity of the button when focused with the tab key
--background-hover Background of the button on hover
--background-hover-opacity Opacity of the background on hover
--border-color Border color of the button
--border-radius Border radius of the button
--border-style Border style of the button
--border-width Border width of the button
--box-shadow Box shadow of the button
--color Text color of the button
--color-activated Text color of the button when pressed
--color-focused Text color of the button when focused with the tab key
--color-hover Text color of the button when hover
--opacity Opacity of the button
--padding-bottom Bottom padding of the button
--padding-end Right padding if direction is left-to-right, and left padding if direction is right-to-left of the button
--padding-start Left padding if direction is left-to-right, and right padding if direction is right-to-left of the button
--padding-top Top padding of the button
--ripple-color Color of the button ripple effect
--transition Transition of the button

Dependencies

Depends on

Graph

graph TD;
  ion-button --> ion-ripple-effect
  style ion-button fill:#f9f,stroke:#333,stroke-width:4px

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