Button.md

Buttons

Buttons allow users to take actions, and make choices, with a single tap.

Contents

• Design and API Documentation
• Using buttons
• Elevated button
• Filled button
• Filled tonal button
• Outlined button
• Text button
• Button groups
• Toggle button group
• Icon button
• Theming

Design and API Documentation

• Google Material3 Spec
• API Reference

Using buttons

Before you can use Material buttons, you need to add a dependency to the Material Components for Android library. For more information, go to the Getting started page.

Note: <Button> is auto-inflated as <com.google.android.material.button.MaterialButton> via MaterialComponentsViewInflater when using a Theme.Material3.* theme.

Making buttons accessible

Buttons support content labeling for accessibility and are readable by most screen readers, such as TalkBack. Text rendered in buttons is automatically provided to accessibility services. Additional content labels are usually unnecessary.

For more information on content labels, go to the Android accessibility help guide.

Types

There are five types of common buttons: 1. Elevated button, 2. Filled button, 3. Filled tonal button, 4. Outlined button, 5. Text button.

Toggle button is an additional pattern using a segmented container or icon.

Elevated button

Elevated buttons are essentially outlined buttons with a shadow. To prevent shadow creep, only use them when absolutely necessary, such as when the button requires visual separation from a patterned background.

Elevated button examples

API and source code:

• MaterialButton
  • Class description
  • Class source

The following example shows an elevated button with a text label.

In the layout:

<Button
    style="@style/Widget.Material3.Button.ElevatedButton"
    android:id="@+id/elevatedButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Elevated button"
/>

In code:

elevatedButton.setOnClickListener {
    // Respond to button press
}

Adding an icon to an elevated button

The following example shows an elevated button with an icon.

In the layout:

<Button
    style="@style/Widget.Material3.Button.ElevatedButton.Icon"
    ...
    app:icon="@drawable/ic_add_24dp"
/>

Anatomy and key properties

An elevated button has a text label, a stroked container and an optional icon.

1. Container
2. Label text
3. Icon

Text label attributes

Element	Attribute	Related method(s)	Default value
Text label	android:text	setText getText	null
Color	android:textColor	setTextColor getTextColor	?attr/colorOnSurface (see all states)
Typography	android:textAppearance	setTextAppearance	?attr/textAppearanceLabelLarge

Container attributes

Element	Attribute	Related method(s)	Default value
Color	app:backgroundTint	setBackgroundColor setBackgroundTintList getBackgroundTintList	?attr/colorSurfaceContainerLow (see all states)
Stroke color	app:strokeColor	setStrokeColor setStrokeColorResource getStrokeColor	null
Stroke width	app:strokeWidth	setStrokeWidth setStrokeWidthResource getStrokeWidth	0dp
Shape	app:shapeAppearance	setShapeAppearanceModel getShapeAppearanceModel	ShapeAppearance.M3.Sys.Shape.Corner.Full
Elevation	app:elevation	setElevation getElevation	1dp
Ripple color	app:rippleColor	setRippleColor setRippleColorResource getRippleColor	?attr/colorOnSurface at 16% opacity (see all states)

Icon attributes

Element	Attribute	Related method(s)	Default value
Icon	app:icon	setIcon setIconResource getIcon	null
Color	app:iconTint	setIconTint setIconTintResource getIconTint	?attr/colorOnSurface (see all states)
Size	app:iconSize	setIconSize getIconSize	wrap_content
Gravity (position relative to text label)	app:iconGravity	setIconGravity getIconGravity	start
Padding (space between icon and text label)	app:iconPadding	setIconPadding getIconPadding	8dp

Styles

Element	Style
Default style	Widget.Material3.Button.ElevatedButton
Icon style	Widget.Material3.Button.ElevatedButton.Icon

Default style theme attribute: ?attr/materialButtonElevatedStyle

See the full list of styles and attrs.

Filled button

Filled button's contrasting surface color makes it the most prominent button after the FAB. It’s used for final or unblocking actions in a flow.

Note The filled button is the default style if the style is not set.

Filled button examples

API and source code:

• MaterialButton
  • Class description
  • Class source

The following example shows a filled button with a text label and a filled container.

In the layout:

<Button
    android:id="@+id/filledButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Filled button"
/>

Note: Since this is the default type, you don't need to specify a style tag as long as you are using a Material Components Theme. If not, set the style to @style/Widget.Material3.Button.

In code:

filledButton.setOnClickListener {
    // Respond to button press
}

Adding an icon to a filled button

The following example shows a filled button with an icon.

In the layout:

<Button
    style="@style/Widget.Material3.Button.Icon"
    ...
    app:icon="@drawable/ic_add_24dp"
/>

Anatomy and key properties

A filled button has a text label, a filled container and an optional icon.

1. Container
2. Label text
3. Icon

Text label attributes

Element	Attribute	Related method(s)	Default value
Text label	android:text	setText getText	null
Color	android:textColor	setTextColor getTextColor	?attr/colorOnPrimary (see all states)
Typography	android:textAppearance	setTextAppearance	?attr/textAppearanceLabelLarge

Container attributes

Element	Attribute	Related method(s)	Default value
Color	app:backgroundTint	setBackgroundColor setBackgroundTintList getBackgroundTintList	?attr/colorPrimary (see all states)
Stroke color	app:strokeColor	setStrokeColor setStrokeColorResource getStrokeColor	null
Stroke width	app:strokeWidth	setStrokeWidth setStrokeWidthResource getStrokeWidth	0dp
Shape	app:shapeAppearance	setShapeAppearanceModel getShapeAppearanceModel	ShapeAppearance.M3.Sys.Shape.Corner.Full
Elevation	app:elevation	setElevation getElevation	2dp
Ripple color	app:rippleColor	setRippleColor setRippleColorResource getRippleColor	?attr/colorOnPrimary at 16% opacity (see all states)

Icon attributes

Element	Attribute	Related method(s)	Default value
Icon	app:icon	setIcon setIconResource getIcon	null
Color	app:iconTint	setIconTint setIconTintResource getIconTint	?attr/colorOnPrimary (see all states)
Size	app:iconSize	setIconSize getIconSize	wrap_content
Gravity (position relative to text label)	app:iconGravity	setIconGravity getIconGravity	start
Padding (space between icon and text label)	app:iconPadding	setIconPadding getIconPadding	8dp

Styles

Element	Style
Default style	Widget.Material3.Button
Icon style	Widget.Material3.Button.Icon
Unelevated style	Widget.Material3.Button.UnelevatedButton
Unelevated icon style	Widget.Material3.Button.UnelevatedButton.Icon

Default style theme attribute: ?attr/materialButtonStyle

See the full list of styles and attrs.

Filled tonal button

Filled tonal buttons have a lighter background color and darker label color, making them less visually prominent than a regular filled button. They’re still used for final or unblocking actions in a flow, but may be better when these actions don’t require quite so much emphasis.

Filled tonal button examples

API and source code:

• MaterialButton
  • Class description
  • Class source

The following example shows a filled tonal button with a text label and a filled container.

In the layout:

<Button
    style="@style/Widget.Material3.Button.TonalButton"
    android:id="@+id/filledTonalButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Filled tonal button"
/>

In code:

filledTonalButton.setOnClickListener {
    // Respond to button press
}

Adding an icon to a filled tonal button

The following example shows a filled tonal button with an icon.

In the layout:

<Button
    style="@style/Widget.Material3.Button.TonalButton.Icon"
    ...
    app:icon="@drawable/ic_add_24dp"
/>

Anatomy and key properties

A filled tonal button has a text label, a filled container and an optional icon.

1. Container
2. Label text
3. Icon

Text label attributes

Element	Attribute	Related method(s)	Default value
Text label	android:text	setText getText	null
Color	android:textColor	setTextColor getTextColor	?attr/colorOnSecondaryContainer (see all states)
Typography	android:textAppearance	setTextAppearance	?attr/textAppearanceLabelLarge

Container attributes

Element	Attribute	Related method(s)	Default value
Color	app:backgroundTint	setBackgroundColor setBackgroundTintList getBackgroundTintList	?attr/colorSecondaryContainer (see all states)
Stroke color	app:strokeColor	setStrokeColor setStrokeColorResource getStrokeColor	null
Stroke width	app:strokeWidth	setStrokeWidth setStrokeWidthResource getStrokeWidth	0dp
Shape	app:shapeAppearance	setShapeAppearanceModel getShapeAppearanceModel	ShapeAppearance.M3.Sys.Shape.Corner.Full
Elevation	app:elevation	setElevation getElevation	2dp
Ripple color	app:rippleColor	setRippleColor setRippleColorResource getRippleColor	?attr/colorOnSecondaryContainer at 16% opacity (see all states)

Icon attributes

Element	Attribute	Related method(s)	Default value
Icon	app:icon	setIcon setIconResource getIcon	null
Color	app:iconTint	setIconTint setIconTintResource getIconTint	?attr/colorOnSecondaryContainer (see all states)
Size	app:iconSize	setIconSize getIconSize	wrap_content
Gravity (position relative to text label)	app:iconGravity	setIconGravity getIconGravity	start
Padding (space between icon and text label)	app:iconPadding	setIconPadding getIconPadding	8dp

Styles

Element	Style
Default style	Widget.Material3.Button.TonalButton
Icon style	Widget.Material3.Button.TonalButton.Icon

Default style theme attribute: ?attr/materialButtonTonalStyle

See the full list of styles and attrs.

Outlined button

Outlined buttons are for actions that need attention but aren’t the primary action, such as “See all” or “Add to cart.” This is also the button used to give someone the opportunity to change their mind or escape a flow.

Outlined button examples

API and source code:

• MaterialButton
  • Class description
  • Class source

The following example shows an outlined button with a text label and stroked container.

In the layout:

<Button
    style="?attr/materialButtonOutlinedStyle"
    android:id="@+id/outlinedButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Outlined button"
/>

In code:

outlinedButton.setOnClickListener {
    // Respond to button press
}

Adding an icon to an outlined button

The following example shows an outlined button with an icon.

In the layout:

<Button
    style="@style/Widget.Material3.Button.OutlinedButton.Icon"
    ...
    app:icon="@drawable/ic_add_24dp"
/>

Anatomy and key properties

An outlined button has a text label, a stroked container and an optional icon.

1. Container
2. Label text
3. Icon

Text label attributes

Element	Attribute	Related method(s)	Default value
Text label	android:text	setText getText	null
Color	android:textColor	setTextColor getTextColor	?attr/colorOnSurface (see all states)
Typography	android:textAppearance	setTextAppearance	?attr/textAppearanceLabelLarge

Container attributes

Element	Attribute	Related method(s)	Default value
Color	app:backgroundTint	setBackgroundColor setBackgroundTintList getBackgroundTintList	@android:color/transparent (see all states)
Stroke color	app:strokeColor	setStrokeColor setStrokeColorResource getStrokeColor	?attr/colorOnSurface at 12% opacity (see all states)
Stroke width	app:strokeWidth	setStrokeWidth setStrokeWidthResource getStrokeWidth	1dp
Shape	app:shapeAppearance	setShapeAppearanceModel getShapeAppearanceModel	ShapeAppearance.M3.Sys.Shape.Corner.Full
Elevation	app:elevation	setElevation getElevation	0dp
Ripple color	app:rippleColor	setRippleColor setRippleColorResource getRippleColor	?attr/colorOnSurface at 16% opacity (see all states)

Icon attributes

Element	Attribute	Related method(s)	Default value
Icon	app:icon	setIcon setIconResource getIcon	null
Color	app:iconTint	setIconTint setIconTintResource getIconTint	?attr/colorOnSurface (see all states)
Size	app:iconSize	setIconSize getIconSize	wrap_content
Gravity (position relative to text label)	app:iconGravity	setIconGravity getIconGravity	start
Padding (space between icon and text label)	app:iconPadding	setIconPadding getIconPadding	8dp

Styles

Element	Style
Default style	Widget.Material3.Button.OutlinedButton
Icon style	Widget.Material3.Button.OutlinedButton.Icon

Default style theme attribute: ?attr/materialButtonOutlinedStyle

See the full list of styles and attrs.

Text button

Text buttons have less visual prominence, so should be used for low emphasis actions, such as when presenting multiple options.

Text button examples

API and source code:

• MaterialButton
  • Class description
  • Class source

The following example shows a text button with a text label.

In the layout:

<Button
    style="@style/Widget.Material3.Button.TextButton"
    android:id="@+id/textButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Text button"
/>

In code:

textButton.setOnClickListener {
    // Respond to button press
}

Adding an icon to a text button

The following example shows a text button with an icon.

In the layout:

<Button
    style="@style/Widget.Material3.Button.TextButton.Icon"
    ...
    app:icon="@drawable/ic_add_24dp"
/>

Anatomy and key properties

A text button has a text label, a transparent container and an optional icon.

1. Label text
2. Icon

Text label attributes

Element	Attribute	Related method(s)	Default value
Text label	android:text	setText getText	null
Color	android:textColor	setTextColor getTextColor	?attr/colorOnSurface (see all states)
Typography	android:textAppearance	setTextAppearance	?attr/textAppearanceLabelLarge

Container attributes

Element	Attribute	Related method(s)	Default value
Color	app:backgroundTint	setBackgroundColor setBackgroundTintList getBackgroundTintList	@android:color/transparent (see all states)
Stroke color	app:strokeColor	setStrokeColor setStrokeColorResource getStrokeColor	null
Stroke width	app:strokeWidth	setStrokeWidth setStrokeWidthResource getStrokeWidth	0dp
Shape	app:shapeAppearance	setShapeAppearanceModel getShapeAppearanceModel	ShapeAppearance.M3.Sys.Shape.Corner.Full
Elevation	app:elevation	setElevation getElevation	0dp
Ripple color	app:rippleColor	setRippleColor setRippleColorResource getRippleColor	?attr/colorOnSurface at 16% opacity (see all states)

Icon attributes

Element	Attribute	Related method(s)	Default value
Icon	app:icon	setIcon setIconResource getIcon	null
Color	app:iconTint	setIconTint setIconTintResource getIconTint	?attr/colorOnSurface (see all states)
Size	app:iconSize	setIconSize getIconSize	wrap_content
Gravity (position relative to text label)	app:iconGravity	setIconGravity getIconGravity	start
Padding (space between icon and text label)	app:iconPadding	setIconPadding getIconPadding	8dp

Styles

Element	Style
Default style	Widget.Material3.Button.TextButton
Icon style	Widget.Material3.Button.TextButton.Icon
Full Width Buttons	Widget.Material3.Button.TextButton.Dialog.FullWidth

Default style theme attribute: ?attr/borderlessButtonStyle

See the full list of styles and attrs.

Button groups

Button groups organize buttons and add interactions between them.

There are two types of button groups based on their shapes:

• Button group
• Connected button group

Button group

The default button group contains multiple related individual buttons. The individual button's shape is preserved.

Button group examples

Source code:

• MaterialButtonGroup
  • Class source
• MaterialButton
  • Class source

The following example shows a button group with three buttons that have text labels.

In the layout:

<com.google.android.material.button.MaterialButtonGroup
    android:id="@+id/buttonGroup"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 1"
    />
    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 2"
    />
    <Button
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 3"
    />
</com.google.android.material.button.MaterialButtonGroup>

Connected button group

In addition to standard button groups, connected button group also overrides the individual button's shape to make them visually more belong to a group with 2dp spacing, 8dp inner corners, and fully rounded outer corners.

Connected button group examples

Source code:

• MaterialButtonGroup
  • Class source
• MaterialButton
  • Class source

The following example shows a connected button group with three buttons that have text labels. To correctly style a button group as connected button group, the specific style needs to be set.

In the layout:

<com.google.android.material.button.MaterialButtonGroup
    android:id="@+id/buttonGroup"
    style="@style/Widget.Material3.MaterialButtonGroup.Connected"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
    <Button
        style="?attr/materialButtonOutlinedStyle"
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 1"
    />
    <Button
        style="?attr/materialButtonOutlinedStyle"
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 2"
    />
    <Button
        style="?attr/materialButtonOutlinedStyle"
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 3"
    />
</com.google.android.material.button.MaterialButtonGroup>

Properties

Element	Attribute	Related method(s)	Default value
Group shape (outer corners)	app:shapeAppearance	setShapeAppearance getShapeAppearance	none
Size of inner corners	app:innerCornerSize	setInnerCornerSize getInnerCornerSize	none
Spacing between buttons	android:spacing	setSpacing getSpacing	12dp
Child size change	app:childSizeChange	N/A	15% in pressed, otherwise, 0%

Styles and Theme attributes

Element	Style	Theme Attribute
Default style	Widget.Material3.MaterialButtonGroup	?attr/materialButtonGroupStyle

Split button

A specialized type of the connected button group is the split button. The trailing button is checkable with an animated icon.

Split button examples

Source code:

• MaterialSplitButton
  • Class source

The following example shows a split button with a leading label button and a trailing icon button that has an AnimatedVectorDrawable.

In the layout:

  <com.google.android.material.button.MaterialSplitButton
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  android:id="@+id/splitbutton"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
    <Button
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="@string/split_button_label"
          app:icon="@drawable/ic_edit_vd_theme_24dp"/>
    <Button
          style="?attr/materialSplitButtonIconFilledStyle"
          android:id="@+id/expand_more_or_less"
          android:layout_height="wrap_content"
          android:layout_width="wrap_content"
          android:minWidth="48dp"
          android:gravity="center"
          android:contentDescription="@string/split_button_label_chevron"
          app:icon="@drawable/m3_split_button_chevron_avd"/>
</com.google.android.material.button.MaterialSplitButton>

Animated Trailing Icon

The icon on the trailing button is animated. In the samples, this is done with an AVD, m3_split_button_chevron_avd [source].

Properties

Element	Attribute	Related method(s)	Default value
Size of inner corners	app:innerCornerSize	setInnerCornerSize getInnerCornerSize	none
Spacing between buttons	android:spacing	setSpacing getSpacing	2dp
Button size change	app:buttonSizeChange	N/A	0%

Styles and Theme attributes

Element	Style	Theme Attribute
Default style	Widget.Material3.MaterialSplitButton	?attr/materialSplitButtonStyle
Trailing icon primary (filled) style	Widget.Material3.SplitButton.IconButton.Filled	?attr/materialSplitButtonIconFilledStyle
Trailing icon secondary (tonal) style	Widget.Material3.SplitButton.IconButton.Filled.Tonal	?attr/materialSplitButtonIconFilledTonalStyle

The two new trailing icon styles materialSplitButtonIconFilledStyle – parented by materialIconButtonFilledStyle – and materialSplitButtonIconFilledTonalStyle-- parented by materialIconButtonFilledTonalStyle allow for the MaterialSplitButton custom behavior for onChecked and onUnchecked states. materialSplitButtonIconFilledStyle is paired with default leading button styling, with no style explicitly specified in the XML. materialSplitButtonIconFilledTonalStyle is paired with materialButtonTonalStyle for the leading button.

Toggle button groups

Toggle button group (Segmented buttons) can be used to select from a group of choices.

There are two types of toggle buttons can be placed in a toggle button group:

• Toggle button
• Icon

Toggle button

To emphasize groups of related toggle buttons, a group should share a common container.

Toggle button examples

API and source code:

• MaterialButtonToggleGroup
  • Class description
  • Class source
• MaterialButton
  • Class description
  • Class source

The following example shows a toggle button with three buttons that have text labels.

In the layout:

<com.google.android.material.button.MaterialButtonToggleGroup
    android:id="@+id/toggleButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">
    <Button
        style="?attr/materialButtonOutlinedStyle"
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 1"
    />
    <Button
        style="?attr/materialButtonOutlinedStyle"
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 2"
    />
    <Button
        style="?attr/materialButtonOutlinedStyle"
        android:id="@+id/button3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 3"
    />
</com.google.android.material.button.MaterialButtonToggleGroup>

In code:

toggleButton.addOnButtonCheckedListener { toggleButton, checkedId, isChecked ->
    // Respond to button selection
}

Implementing an icon-only toggle button

The following example shows a toggle button with three buttons that have icons.

In res/values/styles.xml:

<style name="Widget.App.Button.OutlinedButton.IconOnly" parent="Widget.Material3.Button.OutlinedButton">
    <item name="iconPadding">0dp</item>
    <item name="android:insetTop">0dp</item>
    <item name="android:insetBottom">0dp</item>
    <item name="android:paddingLeft">12dp</item>
    <item name="android:paddingRight">12dp</item>
    <item name="android:minWidth">48dp</item>
    <item name="android:minHeight">48dp</item>
</style>

In the layout:

<com.google.android.material.button.MaterialButtonToggleGroup
    ...>
    <Button
        style="@style/Widget.App.Button.OutlinedButton.IconOnly"
        ...
        app:icon="@drawable/ic_favorite_24dp"
    />
    <Button
        style="@style/Widget.App.Button.OutlinedButton.IconOnly"
        ...
        app:icon="@drawable/ic_add_24dp"
    />
    <Button
        style="@style/Widget.App.Button.OutlinedButton.IconOnly"
        ...
        app:icon="@drawable/ic_search_24dp"
    />
</com.google.android.material.button.MaterialButtonToggleGroup>

Anatomy and key properties

A toggle button has a shared stroked container, icons and/or text labels.

1. Container
2. Icon

Selection attributes

Element	Attribute	Related method(s)	Default value
Single selection	app:singleSelection	setSingleSelection isSingleSelection	false
Selection required	app:selectionRequired	setSelectionRequired isSelectionRequired	false
Enable the group and all children	android:enabled	setEnabled isEnabled	true

Container attributes

Element	Attribute	Related method(s)	Default value
Size of inner corners	app:innerCornerSize	setInnerCornerSize getInnerCornerSize	0dp
Spacing between buttons	android:spacing	setSpacing getSpacing	0dp
Group shape (outer corners)	app:shapeAppearance	setShapeAppearance getShapeAppearance	none

Styles

Element	Style
Default style	Widget.Material3.MaterialButtonToggleGroup

Default style theme attribute: ?attr/materialButtonToggleGroupStyle

See the full list of styles and attrs.

Icon

Icons can be used as toggle buttons when they allow selection, or deselection, of a single choice, such as marking an item as a favorite.

Icon example

API and source code:

• CheckBox
  • Class description

Note: The CheckBox API is just one of several inputs that can implement the icon button. See other selection controls for more details.

The following example shows an icon that can be used independently or in items of a RecyclerView.

In the layout:

<CheckBox
    android:id="@+id/icon"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:button="@drawable/sl_favourite_24dp"
    app:buttonTint="@android:color/white"
/>

In res/drawable/sl_favourite_24dp.xml:

<selector>
    <item
        android:drawable="@drawable/ic_favourite_outlined_24dp"
        android:state_checked="false"
    />
    <item
        android:drawable="@drawable/ic_favourite_filled_24dp"
        android:state_checked="true"
    />
    <item android:drawable="@drawable/ic_favourite_outlined_24dp" />
</selector>

In code:

icon.setOnCheckedChangeListener { checkBox, isChecked ->
    // Respond to icon toggle
}

Icon button

Icon buttons help users take supplementary actions with a single tap. There are two types of icon buttons: standard and contained.

• Standard icon button: By default icon buttons will not have a container.
• Contained icon button: Optionally, it is possible to have a container around the icon.

See Icon button examples section below for more information.

Usage

• Icon buttons should be used when a compact button is required, such as in a toolbar.
• Icon buttons can take the form of a wide range of system icons.
• Ensure the meaning of the icon is unambiguous.
• Ensure that the tooltip describes the button’s action, rather than the icon.

Note: The examples below show how to create an icon button using Button which will be inflated to MaterialButton when using a Material theme. There is a known performance issue where MaterialButton takes longer to initialize when compared to ImageButton or AppCompatImageButton, in large part because MaterialButton extends from AppCompatButton which supports more than just icon buttons. Consider using those pure icon button alternatives if the extra latency causes a noticeable issue for your app.

Icon button examples

API and source code:

• MaterialButton
  • Class description
  • Class source

Standard Icon button

The following example shows a standard icon button.

In the layout:

<Button
    style="?attr/materialIconButtonStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:contentDescription="@string/standard_icon_btn_desc"
    app:icon="@drawable/ic_icon_24dp"
/>

In code:

iconButton.addOnButtonCheckedListener { iconButton, checkedId, isChecked ->
    // Respond to button selection
}

Filled Icon button

The following example shows a contained icon button that is filled.

In the layout:

<Button
    style="?attr/materialIconButtonFilledStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:contentDescription="@string/filled_icon_btn_desc"
    app:icon="@drawable/ic_icon_24dp"
/>

Filled Tonal Icon button

The following example shows a tonal icon button.

In the layout:

<Button
    style="?attr/materialIconButtonFilledTonalStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:contentDescription="@string/filled_tonal_icon_btn_desc"
    app:icon="@drawable/ic_icon_24dp"
/>

Outlined Icon button

The following example shows an outlined icon button.

In the layout:

<Button
    style="?attr/materialIconButtonOutlinedStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:contentDescription="@string/outlined_icon_btn_desc"
    app:icon="@drawable/ic_icon_24dp"
/>

Styles and Theme attributes

Element	Style	Theme Attribute
Default style	Widget.Material3.Button.IconButton	?attr/materialIconButtonStyle
Filled Icon Button	Widget.Material3.Button.IconButton.Filled	?attr/materialIconButtonFilledStyle
Filled Tonal Icon Button	Widget.Material3.Button.IconButton.Filled.Tonal	?attr/materialIconButtonFilledTonalStyle
Outlined Icon Button	Widget.Material3.Button.IconButton.Outlined	?attr/materialIconButtonOutlinedStyle

See the full list of styles and attrs.

Theming buttons

Buttons support Material Theming and can be customized in terms of color, typography and shape.

Button theming example

API and source code:

• MaterialButton
  • Class description
  • Class source

The following example shows text, outlined and filled button types with Material Theming.

Implementing button theming

Use theme attributes and styles in res/values/styles.xml to add the theme to all buttons. This affects other components:

<style name="Theme.App" parent="Theme.Material3.*">
    ...
    <item name="colorPrimary">@color/shrine_pink_100</item>
    <item name="colorOnPrimary">@color/shrine_pink_900</item>
    <item name="textAppearanceLabelLarge">@style/TextAppearance.App.Button</item>
    <item name="shapeCornerFamily">cut</item>
</style>

<style name="TextAppearance.App.Button" parent="TextAppearance.Material3.LabelLarge">
    <item name="fontFamily">@font/rubik</item>
    <item name="android:fontFamily">@font/rubik</item>
</style>

Use default style theme attributes, styles and theme overlays. This adds the theme to all buttons but does not affect other components:

<style name="Theme.App" parent="Theme.Material3.*">
    ...
    <item name="borderlessButtonStyle">@style/Widget.App.Button.TextButton</item>
    <item name="materialButtonOutlinedStyle">@style/Widget.App.Button.OutlinedButton</item>
    <item name="materialButtonStyle">@style/Widget.App.Button</item>
</style>

<style name="Widget.App.Button.TextButton" parent="Widget.Material3.Button.TextButton">
    <item name="materialThemeOverlay">@style/ThemeOverlay.App.Button.TextButton</item>
    <item name="android:textAppearance">@style/TextAppearance.App.Button</item>
    <item name="shapeAppearance">@style/ShapeAppearance.App.Button</item>
</style>

<style name="Widget.App.Button.OutlinedButton" parent="Widget.Material3.Button.OutlinedButton">
    <item name="materialThemeOverlay">@style/ThemeOverlay.App.Button.TextButton</item>
    <item name="android:textAppearance">@style/TextAppearance.App.Button</item>
    <item name="shapeAppearance">@style/ShapeAppearance.App.Button</item>
</style>

<style name="Widget.App.Button" parent="Widget.Material3.Button">
    <item name="materialThemeOverlay">@style/ThemeOverlay.App.Button</item>
    <item name="android:textAppearance">@style/TextAppearance.App.Button</item>
    <item name="shapeAppearance">@style/ShapeAppearance.App.Button</item>
</style>

<style name="ThemeOverlay.App.Button.TextButton" parent="ThemeOverlay.Material3.Button.TextButton">
    <item name="colorOnContainer">@color/shrine_pink_900</item>
</style>

<style name="ThemeOverlay.App.Button" parent="ThemeOverlay.Material3.Button">
    <item name="colorContainer">@color/shrine_pink_100</item>
    <item name="colorOnContainer">@color/shrine_pink_900</item>
</style>

<style name="ShapeAppearance.App.Button" parent="">
    <item name="cornerFamily">cut</item>
    <item name="cornerSize">4dp</item>
</style>

Use one of the styles in the layout. That will affect only this button:

<Button
    style="@style/Widget.App.Button"
    ...
/>