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Buttons

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

"Overview"

Contents

Design & API Documentation

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.

"Button types - elevated, filled, filled tonal, outlined and text."

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:

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

"Elevated button with purple text 'Elevated button' over a white background."

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.

"Elevated button with purple text 'Elevated button', grey border and '+' icon over a white background."

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.

Elevated button anatomy diagram

  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
?attr/shapeAppearanceSmallComponent
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

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:

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

"Filled button with white text 'Filled button' and purple container over a white background."

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.

"Filled button with white text 'Filled button', purple container and '+' icon over a white background."

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.

Filled button anatomy diagram

  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
?attr/shapeAppearanceSmallComponent
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:

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

"Filled tonal button with white text 'Filled tonal button' and purple container over a white background."

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.

"Filled tonal button with white text 'Filled tonal button', purple container and '+' icon over a white background."

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.

Filled tonal button anatomy diagram

  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
?attr/shapeAppearanceSmallComponent
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

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:

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

"Outlined button with purple text 'Outlined button' and grey border over a white background."

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.

"Outlined button with purple text 'Outlined button', grey border and '+' icon over a white background."

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.

Outlined button anatomy diagram

  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
?attr/shapeAppearanceSmallComponent
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:

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

"Text button with purple text 'Text button' over a white background."

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.

"Text button with purple text 'Text button' and '+' icon over a white background."

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.

Text button anatomy diagram

  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
?attr/shapeAppearanceSmallComponent
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.

Toggle button

Toggle buttons can be used to select from a group of choices.

There are two types of toggle buttons:

Toggle button

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

Toggle button examples

API and source code:

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

"Toggle button example for Android with text labels - 'Button 1', 'Button 2' and 'Button 3' - and grey/purple borders over a white background."

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.

"Toggle buttons with icons - heart, add and search - and grey/purple borders over a white background."

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.

Toggle button anatomy

  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

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:

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.

Toggle icon example showing 4 images, heart icon in the upper-right corner of each image

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.

Icon button examples

API and source code:

Standard Icon button

The following example shows a standard icon button.

"Standard icon button example for Android over a white background."

In the layout:

<Button
    style="?attr/materialIconButtonStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
/>

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.

"Filled icon button example for Android over a white background."

In the layout:

<Button
    style="?attr/materialIconButtonFilledStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
/>

Filled Tonal Icon button

The following example shows a tonal icon button.

"Filled tonal icon button example for Android over a white background."

In the layout:

<Button
    style="?attr/materialIconButtonFilledTonalStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
/>

Outlined Icon button

The following example shows an outlined icon button.

"Outlined icon button example for Android over a white background."

In the layout:

<Button
    style="?attr/materialIconButtonOutlinedStyle"
    android:id="@+id/iconButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
/>

Styles & 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:

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

"Button theming with three buttons - text, outlined and filled - with pink color theming and cut corners."

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="shapeAppearanceSmallComponent">@style/ShapeAppearance.App.SmallComponent</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>

<style name="ShapeAppearance.App.SmallComponent" parent="ShapeAppearance.Material3.SmallComponent">
    <item name="cornerFamily">cut</item>
    <item name="cornerSize">4dp</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.SmallComponent</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.SmallComponent</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.SmallComponent</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>

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

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