Added in API level 1

Drawable

---

Kotlin |Java

abstract class Drawable

kotlin.Any
↳	android.graphics.drawable.Drawable

Known Direct Subclasses AdaptiveIconDrawable, AnimatedImageDrawable, AnimatedVectorDrawable, BitmapDrawable, ColorDrawable, ColorStateListDrawable, DrawableContainer, DrawableWrapper, GradientDrawable, LayerDrawable, NinePatchDrawable, PictureDrawable, and 2 others. AdaptiveIconDrawable This class can also be created via XML inflation using <adaptive-icon> tag in addition to dynamic creation. AnimatedImageDrawable Drawable for drawing animated images (like GIF). AnimatedVectorDrawable This class animates properties of a android.graphics.drawable.VectorDrawable with animations defined using android.animation.ObjectAnimator or android.animation.AnimatorSet. BitmapDrawable A Drawable that wraps a bitmap and can be tiled, stretched, or aligned. ColorDrawable A specialized Drawable that fills the Canvas with a specified color. ColorStateListDrawable A Drawable that manages a ColorDrawable to make it stateful and backed by a ColorStateList. DrawableContainer A helper class that contains several Drawables and selects which one to use. DrawableWrapper Drawable container with only one child element. GradientDrawable A Drawable with a color gradient for buttons, backgrounds, etc. LayerDrawable A Drawable that manages an array of other Drawables. NinePatchDrawable A resizeable bitmap, with stretchable areas that you define. PictureDrawable Drawable subclass that wraps a Picture, allowing the picture to be used wherever a Drawable is supported. ShapeDrawable A Drawable object that draws primitive shapes. VectorDrawable This lets you create a drawable based on an XML vector graphic.

Known Indirect Subclasses AnimatedStateListDrawable, AnimationDrawable, ClipDrawable, InsetDrawable, LevelListDrawable, PaintDrawable, RippleDrawable, RotateDrawable, ScaleDrawable, StateListDrawable, TransitionDrawable AnimatedStateListDrawable Drawable containing a set of Drawable keyframes where the currently displayed keyframe is chosen based on the current state set. AnimationDrawable An object used to create frame-by-frame animations, defined by a series of Drawable objects, which can be used as a View object's background. ClipDrawable A Drawable that clips another Drawable based on this Drawable's current level value. InsetDrawable A Drawable that insets another Drawable by a specified distance or fraction of the content bounds. LevelListDrawable A resource that manages a number of alternate Drawables, each assigned a maximum numerical value. PaintDrawable Drawable that draws its bounds in the given paint, with optional rounded corners. RippleDrawable Drawable that shows a ripple effect in response to state changes. RotateDrawable A Drawable that can rotate another Drawable based on the current level value. ScaleDrawable A Drawable that changes the size of another Drawable based on its current level value. StateListDrawable Lets you assign a number of graphic images to a single Drawable and swap out the visible item by a string ID value. TransitionDrawable An extension of LayerDrawables that is intended to cross-fade between the first and second layer.

A Drawable is a general abstraction for "something that can be drawn." Most often you will deal with Drawable as the type of resource retrieved for drawing things to the screen; the Drawable class provides a generic API for dealing with an underlying visual resource that may take a variety of forms. Unlike a android.view.View, a Drawable does not have any facility to receive events or otherwise interact with the user.

In addition to simple drawing, Drawable provides a number of generic mechanisms for its client to interact with what is being drawn:

• The #setBounds method must be called to tell the Drawable where it is drawn and how large it should be. All Drawables should respect the requested size, often simply by scaling their imagery. A client can find the preferred size for some Drawables with the getIntrinsicHeight and getIntrinsicWidth methods.
• The getPadding method can return from some Drawables information about how to frame content that is placed inside of them. For example, a Drawable that is intended to be the frame for a button widget would need to return padding that correctly places the label inside of itself.
• The setState method allows the client to tell the Drawable in which state it is to be drawn, such as "focused", "selected", etc. Some drawables may modify their imagery based on the selected state.
• The setLevel method allows the client to supply a single continuous controller that can modify the Drawable is displayed, such as a battery level or progress level. Some drawables may modify their imagery based on the current level.
• A Drawable can perform animations by calling back to its client through the Callback interface. All clients should support this interface (via setCallback) so that animations will work. A simple way to do this is through the system facilities such as android.view.View#setBackground(Drawable) and android.widget.ImageView.

Though usually not visible to the application, Drawables may take a variety of forms:

• Bitmap: the simplest Drawable, a PNG or JPEG image.
• Nine Patch: an extension to the PNG format allows it to specify information about how to stretch it and place things inside of it.
• Vector: a drawable defined in an XML file as a set of points, lines, and curves along with its associated color information. This type of drawable can be scaled without loss of display quality.
• Shape: contains simple drawing commands instead of a raw bitmap, allowing it to resize better in some cases.
• Layers: a compound drawable, which draws multiple underlying drawables on top of each other.
• States: a compound drawable that selects one of a set of drawables based on its state.
• Levels: a compound drawable that selects one of a set of drawables based on its level.
• Scale: a compound drawable with a single child drawable, whose overall size is modified based on the current level.

Custom drawables

All versions of Android allow the Drawable class to be extended and used at run time in place of framework-provided drawable classes. Starting in API 24, custom drawables classes may also be used in XML.

Note: Custom drawable classes are only accessible from within your application package. Other applications will not be able to load them.

At a minimum, custom drawable classes must implement the abstract methods on Drawable and should override the Drawable.draw(Canvas) method to draw content.

Custom drawables classes may be used in XML in multiple ways:

• Using the fully-qualified class name as the XML element name. For this method, the custom drawable class must be a public top-level class.

  <com.myapp.MyCustomDrawable xmlns:android="http://schemas.android.com/apk/res/android"
        android:color="#ffff0000" />
    

• Using drawable as the XML element name and specifying the fully-qualified class name from the class attribute. This method may be used for both public top-level classes and public static inner classes.

  <drawable xmlns:android="http://schemas.android.com/apk/res/android"
        class="com.myapp.MyTopLevelClass$InnerCustomDrawable"
        android:color="#ffff0000" />
    

Developer Guides

For more information about how to use drawables, read the Canvas and Drawables developer guide. For information and examples of creating drawable resources (XML or bitmap files that can be loaded in code), read the Drawable Resources document.

Summary

Nested classes
abstract	Callback Implement this interface if you want to create an animated drawable that extends Drawable.
abstract	ConstantState This abstract class is used by Drawables to store shared constant state and data between Drawables.

Public constructors
Drawable()

Public methods
open Unit	applyTheme(t: Resources.Theme) Applies the specified theme to this Drawable and its children.
open Boolean	canApplyTheme()
open Unit	clearColorFilter() Removes the color filter for this drawable.
Rect	copyBounds() Return a copy of the drawable's bounds in a new Rect.
Unit	copyBounds(bounds: Rect) Return a copy of the drawable's bounds in the specified Rect (allocated by the caller).
open static Drawable?	createFromPath(pathName: String!) Create a drawable from file path name.
open static Drawable?	createFromResourceStream(res: Resources?, value: TypedValue?, is: InputStream?, srcName: String?) Create a drawable from an inputstream, using the given resources and value to determine density information.
open static Drawable?	createFromResourceStream(res: Resources?, value: TypedValue?, is: InputStream?, srcName: String?, opts: BitmapFactory.Options?) Create a drawable from an inputstream, using the given resources and value to determine density information.
open static Drawable?	createFromStream(is: InputStream?, srcName: String?) Create a drawable from an inputstream
open static Drawable	createFromXml(r: Resources, parser: XmlPullParser) Create a drawable from an XML document.
open static Drawable	createFromXml(r: Resources, parser: XmlPullParser, theme: Resources.Theme?) Create a drawable from an XML document using an optional Theme.
open static Drawable	createFromXmlInner(r: Resources, parser: XmlPullParser, attrs: AttributeSet) Create from inside an XML document.
open static Drawable	createFromXmlInner(r: Resources, parser: XmlPullParser, attrs: AttributeSet, theme: Resources.Theme?) Create a drawable from inside an XML document using an optional Theme.
abstract Unit	draw(canvas: Canvas) Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter).
open Int	getAlpha() Gets the current alpha value for the drawable.
Rect	getBounds() Return the drawable's bounds Rect.
open Drawable.Callback?	getCallback() Return the current Callback implementation attached to this Drawable.
open Int	getChangingConfigurations() Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.
open ColorFilter?	getColorFilter() Returns the current color filter, or null if none set.
open Drawable.ConstantState?	getConstantState() Return a ConstantState instance that holds the shared state of this Drawable.
open Drawable	getCurrent()
open Rect	getDirtyBounds() Return the drawable's dirty bounds Rect.
open Unit	getHotspotBounds(outRect: Rect) Populates outRect with the hotspot bounds.
open Int	getIntrinsicHeight() Returns the drawable's intrinsic height.
open Int	getIntrinsicWidth() Returns the drawable's intrinsic width.
open Int	getLayoutDirection() Returns the resolved layout direction for this Drawable.
Int	getLevel() Retrieve the current level.
open Int	getMinimumHeight() Returns the minimum height suggested by this Drawable.
open Int	getMinimumWidth() Returns the minimum width suggested by this Drawable.
abstract Int	getOpacity() Return the opacity/transparency of this Drawable.
open Insets	getOpticalInsets() Return in insets the layout insets suggested by this Drawable for use with alignment operations during layout.
open Unit	getOutline(outline: Outline) Called to get the drawable to populate the Outline that defines its drawing area.
open Boolean	getPadding(padding: Rect) Return in padding the insets suggested by this Drawable for placing content inside the drawable's bounds.
open IntArray	getState() Describes the current state, as a union of primitive states, such as android.R.attr#state_focused, android.R.attr#state_selected, etc.
open Region?	getTransparentRegion() Returns a Region representing the part of the Drawable that is completely transparent.
open Boolean	hasFocusStateSpecified() Indicates whether this drawable has at least one state spec explicitly specifying android.R.attr#state_focused.
open Unit	inflate(r: Resources, parser: XmlPullParser, attrs: AttributeSet) Inflate this Drawable from an XML resource.
open Unit	inflate(r: Resources, parser: XmlPullParser, attrs: AttributeSet, theme: Resources.Theme?) Inflate this Drawable from an XML resource optionally styled by a theme.
open Unit	invalidateSelf() Use the current Callback implementation to have this Drawable redrawn.
open Boolean	isAutoMirrored() Tells if this Drawable will be automatically mirrored when its layout direction is RTL right-to-left.
open Boolean	isFilterBitmap()
open Boolean	isProjected() Whether this drawable requests projection.
open Boolean	isStateful() Indicates whether this drawable will change its appearance based on state.
Boolean	isVisible()
open Unit	jumpToCurrentState() If this Drawable does transition animations between states, ask that it immediately jump to the current state and skip any active animations.
open Drawable	mutate() Make this drawable mutable.
open Boolean	onLayoutDirectionChanged(layoutDirection: Int) Called when the drawable's resolved layout direction changes.
open static Int	resolveOpacity(op1: Int, op2: Int) Return the appropriate opacity value for two source opacities.
open Unit	scheduleSelf(what: Runnable, when: Long) Use the current Callback implementation to have this Drawable scheduled.
abstract Unit	setAlpha(alpha: Int) Specify an alpha value for the drawable.
open Unit	setAutoMirrored(mirrored: Boolean) Set whether this Drawable is automatically mirrored when its layout direction is RTL (right-to left).
open Unit	setBounds(bounds: Rect) Specify a bounding rectangle for the Drawable.
open Unit	setBounds(left: Int, top: Int, right: Int, bottom: Int) Specify a bounding rectangle for the Drawable.
Unit	setCallback(cb: Drawable.Callback?) Bind a Callback object to this Drawable.
open Unit	setChangingConfigurations(configs: Int) Set a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.
abstract Unit	setColorFilter(colorFilter: ColorFilter?) Specify an optional color filter for the drawable.
open Unit	setColorFilter(color: Int, mode: PorterDuff.Mode) Specify a color and Porter-Duff mode to be the color filter for this drawable.
open Unit	setDither(dither: Boolean) Set to true to have the drawable dither its colors when drawn to a device with fewer than 8-bits per color component.
open Unit	setFilterBitmap(filter: Boolean) Set to true to have the drawable filter its bitmaps with bilinear sampling when they are scaled or rotated.
open Unit	setHotspot(x: Float, y: Float) Specifies the hotspot's location within the drawable.
open Unit	setHotspotBounds(left: Int, top: Int, right: Int, bottom: Int) Sets the bounds to which the hotspot is constrained, if they should be different from the drawable bounds.
Boolean	setLayoutDirection(layoutDirection: Int) Set the layout direction for this drawable.
Boolean	setLevel(level: Int) Specify the level for the drawable.
open Boolean	setState(stateSet: IntArray) Specify a set of states for the drawable.
open Unit	setTint(tintColor: Int) Specifies tint color for this drawable.
open Unit	setTintBlendMode(blendMode: BlendMode?) Specifies a tint blending mode for this drawable.
open Unit	setTintList(tint: ColorStateList?) Specifies tint color for this drawable as a color state list.
open Unit	setTintMode(tintMode: PorterDuff.Mode?) Specifies a tint blending mode for this drawable.
open Boolean	setVisible(visible: Boolean, restart: Boolean) Set whether this Drawable is visible.
open Unit	unscheduleSelf(what: Runnable) Use the current Callback implementation to have this Drawable unscheduled.

Protected methods
open Unit	onBoundsChange(bounds: Rect) Override this in your subclass to change appearance if you vary based on the bounds.
open Boolean	onLevelChange(level: Int) Override this in your subclass to change appearance if you vary based on level.
open Boolean	onStateChange(state: IntArray) Override this in your subclass to change appearance if you recognize the specified state.

Public constructors

Drawable

Drawable()

Public methods

applyTheme

Added in API level 21

open fun applyTheme(t: Resources.Theme): Unit

Applies the specified theme to this Drawable and its children.

Parameters
t	Resources.Theme: the theme to apply This value cannot be null.

canApplyTheme

Added in API level 21

open fun canApplyTheme(): Boolean

clearColorFilter

Added in API level 1

open fun clearColorFilter(): Unit

Removes the color filter for this drawable.

copyBounds

Added in API level 1

fun copyBounds(): Rect

Return a copy of the drawable's bounds in a new Rect. This returns the same values as getBounds(), but the returned object is guaranteed to not be changed later by the drawable (i.e. it retains no reference to this rect). If the caller already has a Rect allocated, call copyBounds(rect).

Return
Rect	A copy of the drawable's bounds This value cannot be null.

copyBounds

Added in API level 1

fun copyBounds(bounds: Rect): Unit

Return a copy of the drawable's bounds in the specified Rect (allocated by the caller). The bounds specify where this will draw when its draw() method is called.

Parameters
bounds	Rect: Rect to receive the drawable's bounds (allocated by the caller). This value cannot be null.

createFromPath

Added in API level 1

open static fun createFromPath(pathName: String!): Drawable?

Create a drawable from file path name.

Return
Drawable?	This value may be null.

createFromResourceStream

Added in API level 4

open static fun createFromResourceStream(
    res: Resources?, 
    value: TypedValue?, 
    is: InputStream?, 
    srcName: String?
): Drawable?

Create a drawable from an inputstream, using the given resources and value to determine density information.

Parameters
res	Resources?: This value may be null.
value	TypedValue?: This value may be null.
is	InputStream?: This value may be null.
srcName	String?: This value may be null.

Return
Drawable?	This value may be null.

createFromResourceStream

Added in API level 5
Deprecated in API level 28

open static fun createFromResourceStream(
    res: Resources?, 
    value: TypedValue?, 
    is: InputStream?, 
    srcName: String?, 
    opts: BitmapFactory.Options?
): Drawable?

Deprecated: Prefer the version without an Options object.

Create a drawable from an inputstream, using the given resources and value to determine density information.

Parameters
res	Resources?: This value may be null.
value	TypedValue?: This value may be null.
is	InputStream?: This value may be null.
srcName	String?: This value may be null.
opts	BitmapFactory.Options?: This value may be null.

Return
Drawable?	This value may be null.

createFromStream

Added in API level 1

open static fun createFromStream(
    is: InputStream?, 
    srcName: String?
): Drawable?

Create a drawable from an inputstream

Parameters
is	InputStream?: This value may be null.
srcName	String?: This value may be null.

Return
Drawable?	This value may be null.

createFromXml

Added in API level 1

open static fun createFromXml(
    r: Resources, 
    parser: XmlPullParser
): Drawable

Create a drawable from an XML document. For more information on how to create resources in XML, see Drawable Resources.

Parameters
r	Resources: This value cannot be null.
parser	XmlPullParser: This value cannot be null.

Return
Drawable	This value cannot be null.

createFromXml

Added in API level 21

open static fun createFromXml(
    r: Resources, 
    parser: XmlPullParser, 
    theme: Resources.Theme?
): Drawable

Create a drawable from an XML document using an optional Theme. For more information on how to create resources in XML, see Drawable Resources.

Parameters
r	Resources: This value cannot be null.
parser	XmlPullParser: This value cannot be null.
theme	Resources.Theme?: This value may be null.

Return
Drawable	This value cannot be null.

createFromXmlInner

Added in API level 1

open static fun createFromXmlInner(
    r: Resources, 
    parser: XmlPullParser, 
    attrs: AttributeSet
): Drawable

Create from inside an XML document. Called on a parser positioned at a tag in an XML document, tries to create a Drawable from that tag. Returns null if the tag is not a valid drawable.

Parameters
r	Resources: This value cannot be null.
parser	XmlPullParser: This value cannot be null.
attrs	AttributeSet: This value cannot be null.

createFromXmlInner

Added in API level 21

open static fun createFromXmlInner(
    r: Resources, 
    parser: XmlPullParser, 
    attrs: AttributeSet, 
    theme: Resources.Theme?
): Drawable

Create a drawable from inside an XML document using an optional Theme. Called on a parser positioned at a tag in an XML document, tries to create a Drawable from that tag. Returns null if the tag is not a valid drawable.

Parameters
r	Resources: This value cannot be null.
parser	XmlPullParser: This value cannot be null.
attrs	AttributeSet: This value cannot be null.
theme	Resources.Theme?: This value may be null.

draw

Added in API level 1

abstract fun draw(canvas: Canvas): Unit

Draw in its bounds (set via setBounds) respecting optional effects such as alpha (set via setAlpha) and color filter (set via setColorFilter).

Parameters
canvas	Canvas: The canvas to draw into This value cannot be null.

getAlpha

Added in API level 19

open fun getAlpha(): Int

Gets the current alpha value for the drawable. 0 means fully transparent, 255 means fully opaque. This method is implemented by Drawable subclasses and the value returned is specific to how that class treats alpha. The default return value is 255 if the class does not override this method to return a value specific to its use of alpha.

Return
Int	Value is between 0 and 255 inclusive

getBounds

Added in API level 1

fun getBounds(): Rect

Return the drawable's bounds Rect. Note: for efficiency, the returned object may be the same object stored in the drawable (though this is not guaranteed), so if a persistent copy of the bounds is needed, call copyBounds(rect) instead. You should also not change the object returned by this method as it may be the same object stored in the drawable.

Return
Rect	The bounds of the drawable (which may change later, so caller beware). DO NOT ALTER the returned object as it may change the stored bounds of this drawable. This value cannot be null.

See Also

• #copyBounds()
• #copyBounds(android.graphics.Rect)

getCallback

Added in API level 11

open fun getCallback(): Drawable.Callback?

Return the current Callback implementation attached to this Drawable.

Return
Drawable.Callback?	A Callback instance or null if no callback was set.

See Also

• #setCallback(android.graphics.drawable.Drawable.Callback)

getChangingConfigurations

Added in API level 1

open fun getChangingConfigurations(): Int

Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created. The default implementation returns whatever was provided through setChangingConfigurations(int) or 0 by default. Subclasses may extend this to or in the changing configurations of any other drawables they hold.

Return

Int

Returns a mask of the changing configuration parameters, as defined by android.content.pm.ActivityInfo. Value is either 0 or a combination of android.content.pm.ActivityInfo#CONFIG_MCC, android.content.pm.ActivityInfo#CONFIG_MNC, android.content.pm.ActivityInfo#CONFIG_LOCALE, android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN, android.content.pm.ActivityInfo#CONFIG_KEYBOARD, android.content.pm.ActivityInfo#CONFIG_KEYBOARD_HIDDEN, android.content.pm.ActivityInfo#CONFIG_NAVIGATION, android.content.pm.ActivityInfo#CONFIG_ORIENTATION, android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT, android.content.pm.ActivityInfo#CONFIG_UI_MODE, android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE, android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE, android.content.pm.ActivityInfo#CONFIG_DENSITY, android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION, android.content.pm.ActivityInfo#CONFIG_COLOR_MODE, android.content.pm.ActivityInfo#CONFIG_FONT_SCALE, android.content.pm.ActivityInfo#CONFIG_GRAMMATICAL_GENDER, android.content.pm.ActivityInfo#CONFIG_ASSETS_PATHS, and android.content.pm.ActivityInfo#CONFIG_RESOURCES_UNUSED

See Also

• android.content.pm.ActivityInfo

getColorFilter

Added in API level 21

open fun getColorFilter(): ColorFilter?

Returns the current color filter, or null if none set.

Return
ColorFilter?	the current color filter, or null if none set

getConstantState

Added in API level 1

open fun getConstantState(): Drawable.ConstantState?

Return a ConstantState instance that holds the shared state of this Drawable.

Return
Drawable.ConstantState?	The ConstantState associated to that Drawable. This value may be null.

See Also

• android.graphics.drawable.Drawable.ConstantState
• android.graphics.drawable.Drawable#mutate()

getCurrent

Added in API level 1

open fun getCurrent(): Drawable

Return
Drawable	The current drawable that will be used by this drawable. For simple drawables, this is just the drawable itself. For drawables that change state like StateListDrawable and LevelListDrawable this will be the child drawable currently in use. This value cannot be null.

getDirtyBounds

Added in API level 21

open fun getDirtyBounds(): Rect

Return the drawable's dirty bounds Rect. Note: for efficiency, the returned object may be the same object stored in the drawable (though this is not guaranteed).

By default, this returns the full drawable bounds. Custom drawables may override this method to perform more precise invalidation.

Return
Rect	The dirty bounds of this drawable This value cannot be null.

getHotspotBounds

Added in API level 23

open fun getHotspotBounds(outRect: Rect): Unit

Populates outRect with the hotspot bounds.

Parameters
outRect	Rect: the rect to populate with the hotspot bounds This value cannot be null.

See Also

• #setHotspotBounds(int, int, int, int)

getIntrinsicHeight

Added in API level 1

open fun getIntrinsicHeight(): Int

Returns the drawable's intrinsic height.

Intrinsic height is the height at which the drawable would like to be laid out, including any inherent padding. If the drawable has no intrinsic height, such as a solid color, this method returns -1.

Return
Int	the intrinsic height, or -1 if no intrinsic height

getIntrinsicWidth

Added in API level 1

open fun getIntrinsicWidth(): Int

Returns the drawable's intrinsic width.

Intrinsic width is the width at which the drawable would like to be laid out, including any inherent padding. If the drawable has no intrinsic width, such as a solid color, this method returns -1.

Return
Int	the intrinsic width, or -1 if no intrinsic width

getLayoutDirection

Added in API level 23

open fun getLayoutDirection(): Int

Returns the resolved layout direction for this Drawable.

Return
Int	One of android.view.View#LAYOUT_DIRECTION_LTR, android.view.View#LAYOUT_DIRECTION_RTL Value is android.view.View#LAYOUT_DIRECTION_LTR, or android.view.View#LAYOUT_DIRECTION_RTL

See Also

• #setLayoutDirection(int)

getLevel

Added in API level 1

fun getLevel(): Int

Retrieve the current level.

Return
Int	int Current level, from 0 (minimum) to 10000 (maximum). Value is between 0 and 10000 inclusive

getMinimumHeight

Added in API level 1

open fun getMinimumHeight(): Int

Returns the minimum height suggested by this Drawable. If a View uses this Drawable as a background, it is suggested that the View use at least this value for its height. (There will be some scenarios where this will not be possible.) This value should INCLUDE any padding.

Return
Int	The minimum height suggested by this Drawable. If this Drawable doesn't have a suggested minimum height, 0 is returned.

getMinimumWidth

Added in API level 1

open fun getMinimumWidth(): Int

Returns the minimum width suggested by this Drawable. If a View uses this Drawable as a background, it is suggested that the View use at least this value for its width. (There will be some scenarios where this will not be possible.) This value should INCLUDE any padding.

Return
Int	The minimum width suggested by this Drawable. If this Drawable doesn't have a suggested minimum width, 0 is returned.

getOpacity

Added in API level 1
Deprecated in API level 29

abstract fun getOpacity(): Int

Deprecated: This method is no longer used in graphics optimizations

Return the opacity/transparency of this Drawable. The returned value is one of the abstract format constants in android.graphics.PixelFormat: android.graphics.PixelFormat#UNKNOWN, android.graphics.PixelFormat#TRANSLUCENT, android.graphics.PixelFormat#TRANSPARENT, or android.graphics.PixelFormat#OPAQUE.

An OPAQUE drawable is one that draws all all content within its bounds, completely covering anything behind the drawable. A TRANSPARENT drawable is one that draws nothing within its bounds, allowing everything behind it to show through. A TRANSLUCENT drawable is a drawable in any other state, where the drawable will draw some, but not all, of the content within its bounds and at least some content behind the drawable will be visible. If the visibility of the drawable's contents cannot be determined, the safest/best return value is TRANSLUCENT.

Generally a Drawable should be as conservative as possible with the value it returns. For example, if it contains multiple child drawables and only shows one of them at a time, if only one of the children is TRANSLUCENT and the others are OPAQUE then TRANSLUCENT should be returned. You can use the method resolveOpacity to perform a standard reduction of two opacities to the appropriate single output.

Note that the returned value does not necessarily take into account a custom alpha or color filter that has been applied by the client through the setAlpha or #setColorFilter methods. Some subclasses, such as BitmapDrawable, ColorDrawable, and GradientDrawable, do account for the value of setAlpha, but the general behavior is dependent upon the implementation of the subclass.

Return
Int	int The opacity class of the Drawable. Value is android.graphics.PixelFormat#UNKNOWN, android.graphics.PixelFormat#TRANSLUCENT, android.graphics.PixelFormat#TRANSPARENT, or android.graphics.PixelFormat#OPAQUE

See Also

• android.graphics.PixelFormat

getOpticalInsets

Added in API level 29

open fun getOpticalInsets(): Insets

Return in insets the layout insets suggested by this Drawable for use with alignment operations during layout.

Return
Insets	This value cannot be null.

getOutline

Added in API level 21

open fun getOutline(outline: Outline): Unit

Called to get the drawable to populate the Outline that defines its drawing area.

This method is called by the default android.view.ViewOutlineProvider to define the outline of the View.

The default behavior defines the outline to be the bounding rectangle of 0 alpha. Subclasses that wish to convey a different shape or alpha value must override this method.

Parameters
outline	Outline: This value cannot be null.

See Also

• android.view.View#setOutlineProvider(android.view.ViewOutlineProvider)

getPadding

Added in API level 1

open fun getPadding(padding: Rect): Boolean

Return in padding the insets suggested by this Drawable for placing content inside the drawable's bounds. Positive values move toward the center of the Drawable (set Rect.inset).

Parameters
padding	Rect: This value cannot be null.

Return
Boolean	true if this drawable actually has a padding, else false. When false is returned, the padding is always set to 0.

getState

Added in API level 1

open fun getState(): IntArray

Describes the current state, as a union of primitive states, such as android.R.attr#state_focused, android.R.attr#state_selected, etc. Some drawables may modify their imagery based on the selected state.

Return
IntArray	An array of resource Ids describing the current state. This value cannot be null.

getTransparentRegion

Added in API level 1

open fun getTransparentRegion(): Region?

Returns a Region representing the part of the Drawable that is completely transparent. This can be used to perform drawing operations, identifying which parts of the target will not change when rendering the Drawable. The default implementation returns null, indicating no transparent region; subclasses can optionally override this to return an actual Region if they want to supply this optimization information, but it is not required that they do so.

Return
Region?	Returns null if the Drawables has no transparent region to report, else a Region holding the parts of the Drawable's bounds that are transparent.

hasFocusStateSpecified

Added in API level 31

open fun hasFocusStateSpecified(): Boolean

Indicates whether this drawable has at least one state spec explicitly specifying android.R.attr#state_focused.

Note: A View uses a Drawable instance as its background and it changes its appearance based on a state. On keyboard devices, it should specify its android.R.attr#state_focused to make sure the user knows which view is holding the focus.

Return
Boolean	true if android.R.attr#state_focused is specified for this drawable.

inflate

Added in API level 1

open fun inflate(
    r: Resources, 
    parser: XmlPullParser, 
    attrs: AttributeSet
): Unit

Inflate this Drawable from an XML resource. Does not apply a theme.

Parameters
r	Resources: This value cannot be null.
parser	XmlPullParser: This value cannot be null.
attrs	AttributeSet: This value cannot be null.

See Also

• #inflate(Resources, XmlPullParser, AttributeSet, Theme)

inflate

Added in API level 21

open fun inflate(
    r: Resources, 
    parser: XmlPullParser, 
    attrs: AttributeSet, 
    theme: Resources.Theme?
): Unit

Inflate this Drawable from an XML resource optionally styled by a theme. This can't be called more than once for each Drawable. Note that framework may have called this once to create the Drawable instance from XML resource.

Parameters
r	Resources: Resources used to resolve attribute values This value cannot be null.
parser	XmlPullParser: XML parser from which to inflate this Drawable This value cannot be null.
attrs	AttributeSet: Base set of attribute values This value cannot be null.
theme	Resources.Theme?: Theme to apply, may be null

Exceptions
org.xmlpull.v1.XmlPullParserException
java.io.IOException

invalidateSelf

Added in API level 1

open fun invalidateSelf(): Unit

Use the current Callback implementation to have this Drawable redrawn. Does nothing if there is no Callback attached to the Drawable.

See Also

• android.graphics.drawable.Drawable.Callback#invalidateDrawable
• #getCallback()
• #setCallback(android.graphics.drawable.Drawable.Callback)

isAutoMirrored

Added in API level 19

open fun isAutoMirrored(): Boolean

Tells if this Drawable will be automatically mirrored when its layout direction is RTL right-to-left. See android.util.LayoutDirection.

Return
Boolean	boolean Returns true if this Drawable will be automatically mirrored.

isFilterBitmap

Added in API level 23

open fun isFilterBitmap(): Boolean

Return
Boolean	whether this drawable filters its bitmaps

See Also

• #setFilterBitmap(boolean)

isProjected

Added in API level 29

open fun isProjected(): Boolean

Whether this drawable requests projection. Indicates that the android.graphics.RenderNode this Drawable will draw into should be drawn immediately after the closest ancestor RenderNode containing a projection receiver.

See Also

• android.graphics.RenderNode#setProjectBackwards(boolean)

isStateful

Added in API level 1

open fun isStateful(): Boolean

Indicates whether this drawable will change its appearance based on state. Clients can use this to determine whether it is necessary to calculate their state and call setState.

Return
Boolean	True if this drawable changes its appearance based on state, false otherwise.

See Also

• #setState(int[])

isVisible

Added in API level 1

fun isVisible(): Boolean

jumpToCurrentState

Added in API level 11

open fun jumpToCurrentState(): Unit

If this Drawable does transition animations between states, ask that it immediately jump to the current state and skip any active animations.

mutate

Added in API level 3

open fun mutate(): Drawable

Make this drawable mutable. This operation cannot be reversed. A mutable drawable is guaranteed to not share its state with any other drawable. This is especially useful when you need to modify properties of drawables loaded from resources. By default, all drawables instances loaded from the same resource share a common state; if you modify the state of one instance, all the other instances will receive the same modification. Calling this method on a mutable Drawable will have no effect.

Return
Drawable	This drawable. This value cannot be null.

See Also

• android.graphics.drawable.Drawable.ConstantState
• #getConstantState()

onLayoutDirectionChanged

Added in API level 23

open fun onLayoutDirectionChanged(layoutDirection: Int): Boolean

Called when the drawable's resolved layout direction changes.

Parameters
layoutDirection	Int: the new resolved layout direction Value is android.view.View#LAYOUT_DIRECTION_LTR, or android.view.View#LAYOUT_DIRECTION_RTL

Return
Boolean	true if the layout direction change has caused the appearance of the drawable to change such that it needs to be re-drawn, false otherwise

See Also

• #setLayoutDirection(int)

resolveOpacity

Added in API level 1

open static fun resolveOpacity(
    op1: Int, 
    op2: Int
): Int

Return the appropriate opacity value for two source opacities. If either is UNKNOWN, that is returned; else, if either is TRANSLUCENT, that is returned; else, if either is TRANSPARENT, that is returned; else, OPAQUE is returned.

This is to help in implementing getOpacity.

Parameters
op1	Int: One opacity value. Value is android.graphics.PixelFormat#UNKNOWN, android.graphics.PixelFormat#TRANSLUCENT, android.graphics.PixelFormat#TRANSPARENT, or android.graphics.PixelFormat#OPAQUE
op2	Int: Another opacity value. Value is android.graphics.PixelFormat#UNKNOWN, android.graphics.PixelFormat#TRANSLUCENT, android.graphics.PixelFormat#TRANSPARENT, or android.graphics.PixelFormat#OPAQUE

Return
Int	int The combined opacity value. Value is android.graphics.PixelFormat#UNKNOWN, android.graphics.PixelFormat#TRANSLUCENT, android.graphics.PixelFormat#TRANSPARENT, or android.graphics.PixelFormat#OPAQUE

See Also

• #getOpacity

scheduleSelf

Added in API level 1

open fun scheduleSelf(
    what: Runnable, 
    when: Long
): Unit

Use the current Callback implementation to have this Drawable scheduled. Does nothing if there is no Callback attached to the Drawable.

Parameters
what	Runnable: The action being scheduled. This value cannot be null.
when	Long: The time (in milliseconds) to run.

See Also

• android.graphics.drawable.Drawable.Callback#scheduleDrawable

setAlpha

Added in API level 1

abstract fun setAlpha(alpha: Int): Unit

Specify an alpha value for the drawable. 0 means fully transparent, and 255 means fully opaque.

Parameters
alpha	Int: Value is between 0 and 255 inclusive

setAutoMirrored

Added in API level 19

open fun setAutoMirrored(mirrored: Boolean): Unit

Set whether this Drawable is automatically mirrored when its layout direction is RTL (right-to left). See android.util.LayoutDirection.

Parameters
mirrored	Boolean: Set to true if the Drawable should be mirrored, false if not.

setBounds

Added in API level 1

open fun setBounds(bounds: Rect): Unit

Specify a bounding rectangle for the Drawable. This is where the drawable will draw when its draw() method is called.

Parameters
bounds	Rect: This value cannot be null.

setBounds

Added in API level 1

open fun setBounds(
    left: Int, 
    top: Int, 
    right: Int, 
    bottom: Int
): Unit

Specify a bounding rectangle for the Drawable. This is where the drawable will draw when its draw() method is called.

setCallback

Added in API level 1

fun setCallback(cb: Drawable.Callback?): Unit

Bind a Callback object to this Drawable. Required for clients that want to support animated drawables.

Parameters
cb	Drawable.Callback?: The client's Callback implementation. This value may be null.

See Also

• #getCallback()

setChangingConfigurations

Added in API level 1

open fun setChangingConfigurations(configs: Int): Unit

Set a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.

Parameters

configs

Int: A mask of the changing configuration parameters, as defined by android.content.pm.ActivityInfo. Value is either 0 or a combination of android.content.pm.ActivityInfo#CONFIG_MCC, android.content.pm.ActivityInfo#CONFIG_MNC, android.content.pm.ActivityInfo#CONFIG_LOCALE, android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN, android.content.pm.ActivityInfo#CONFIG_KEYBOARD, android.content.pm.ActivityInfo#CONFIG_KEYBOARD_HIDDEN, android.content.pm.ActivityInfo#CONFIG_NAVIGATION, android.content.pm.ActivityInfo#CONFIG_ORIENTATION, android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT, android.content.pm.ActivityInfo#CONFIG_UI_MODE, android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE, android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE, android.content.pm.ActivityInfo#CONFIG_DENSITY, android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION, android.content.pm.ActivityInfo#CONFIG_COLOR_MODE, android.content.pm.ActivityInfo#CONFIG_FONT_SCALE, android.content.pm.ActivityInfo#CONFIG_GRAMMATICAL_GENDER, android.content.pm.ActivityInfo#CONFIG_ASSETS_PATHS, and android.content.pm.ActivityInfo#CONFIG_RESOURCES_UNUSED

See Also

• android.content.pm.ActivityInfo

setColorFilter

Added in API level 1

abstract fun setColorFilter(colorFilter: ColorFilter?): Unit

Specify an optional color filter for the drawable.

If a Drawable has a ColorFilter, each output pixel of the Drawable's drawing contents will be modified by the color filter before it is blended onto the render target of a Canvas.

Pass null to remove any existing color filter.

Note: Setting a non-null color filter disables tint.

Parameters
colorFilter	ColorFilter?: The color filter to apply, or null to remove the existing color filter

setColorFilter

Added in API level 1
Deprecated in API level 29

open fun setColorFilter(
    color: Int, 
    mode: PorterDuff.Mode
): Unit

Deprecated: use setColorFilter(android.graphics.ColorFilter) with an instance of android.graphics.BlendModeColorFilter

Specify a color and Porter-Duff mode to be the color filter for this drawable.

Convenience for setColorFilter(android.graphics.ColorFilter) which constructs a PorterDuffColorFilter.

Note: Setting a color filter disables tint.

Parameters
mode	PorterDuff.Mode: This value cannot be null.

See Also

• #setColorFilter(ColorFilter)

setDither

Added in API level 1
Deprecated in API level 23

open fun setDither(dither: Boolean): Unit

Deprecated: This property is ignored.

Set to true to have the drawable dither its colors when drawn to a device with fewer than 8-bits per color component.

See Also

• android.graphics.Paint#setDither(boolean)

setFilterBitmap

Added in API level 1

open fun setFilterBitmap(filter: Boolean): Unit

Set to true to have the drawable filter its bitmaps with bilinear sampling when they are scaled or rotated.

This can improve appearance when bitmaps are rotated. If the drawable does not use bitmaps, this call is ignored.

See Also

• #isFilterBitmap()
• android.graphics.Paint#setFilterBitmap(boolean)

setHotspot

Added in API level 21

open fun setHotspot(
    x: Float, 
    y: Float
): Unit

Specifies the hotspot's location within the drawable.

Parameters
x	Float: The X coordinate of the center of the hotspot
y	Float: The Y coordinate of the center of the hotspot

setHotspotBounds

Added in API level 21

open fun setHotspotBounds(
    left: Int, 
    top: Int, 
    right: Int, 
    bottom: Int
): Unit

Sets the bounds to which the hotspot is constrained, if they should be different from the drawable bounds.

Parameters
left	Int: position in pixels of the left bound
top	Int: position in pixels of the top bound
right	Int: position in pixels of the right bound
bottom	Int: position in pixels of the bottom bound

See Also

• #getHotspotBounds(android.graphics.Rect)

setLayoutDirection

Added in API level 23

fun setLayoutDirection(layoutDirection: Int): Boolean

Set the layout direction for this drawable. Should be a resolved layout direction, as the Drawable has no capacity to do the resolution on its own.

Parameters
layoutDirection	Int: the resolved layout direction for the drawable, either android.view.View#LAYOUT_DIRECTION_LTR or android.view.View#LAYOUT_DIRECTION_RTL Value is android.view.View#LAYOUT_DIRECTION_LTR, or android.view.View#LAYOUT_DIRECTION_RTL

Return
Boolean	true if the layout direction change has caused the appearance of the drawable to change such that it needs to be re-drawn, false otherwise

See Also

• #getLayoutDirection()

setLevel

Added in API level 1

fun setLevel(level: Int): Boolean

Specify the level for the drawable. This allows a drawable to vary its imagery based on a continuous controller, for example to show progress or volume level.

If the new level you are supplying causes the appearance of the Drawable to change, then it is responsible for calling invalidateSelf in order to have itself redrawn, and true will be returned from this function.

Parameters
level	Int: The new level, from 0 (minimum) to 10000 (maximum). Value is between 0 and 10000 inclusive

Return
Boolean	Returns true if this change in level has caused the appearance of the Drawable to change (hence requiring an invalidate), otherwise returns false.

setState

Added in API level 1

open fun setState(stateSet: IntArray): Boolean

Specify a set of states for the drawable. These are use-case specific, so see the relevant documentation. As an example, the background for widgets like Button understand the following states: [android.R.attr#state_focused, android.R.attr#state_pressed].

If the new state you are supplying causes the appearance of the Drawable to change, then it is responsible for calling invalidateSelf in order to have itself redrawn, and true will be returned from this function.

Note: The Drawable holds a reference on to stateSet until a new state array is given to it, so you must not modify this array during that time.

Parameters
stateSet	IntArray: The new set of states to be displayed. This value cannot be null.

Return
Boolean	Returns true if this change in state has caused the appearance of the Drawable to change (hence requiring an invalidate), otherwise returns false.

setTint

Added in API level 21

open fun setTint(tintColor: Int): Unit

Specifies tint color for this drawable.

A Drawable's drawing content will be blended together with its tint before it is drawn to the screen. This functions similarly to setColorFilter(int,android.graphics.PorterDuff.Mode).

To clear the tint, pass null to setTintList(android.content.res.ColorStateList).

Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter) or setColorFilter(int,android.graphics.PorterDuff.Mode) overrides tint.

Parameters
tintColor	Int: Color to use for tinting this drawable

See Also

• #setTintList(ColorStateList)
• #setTintMode(PorterDuff.Mode)
• #setTintBlendMode(BlendMode)

setTintBlendMode

Added in API level 29

open fun setTintBlendMode(blendMode: BlendMode?): Unit

Specifies a tint blending mode for this drawable.

Defines how this drawable's tint color should be blended into the drawable before it is drawn to screen. Default tint mode is BlendMode.SRC_IN.

Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter)

Parameters
blendMode	BlendMode?: BlendMode to apply to the drawable, a value of null sets the default blend mode value of BlendMode.SRC_IN

See Also

• #setTint(int)
• #setTintList(ColorStateList)

setTintList

Added in API level 21

open fun setTintList(tint: ColorStateList?): Unit

Specifies tint color for this drawable as a color state list.

A Drawable's drawing content will be blended together with its tint before it is drawn to the screen. This functions similarly to setColorFilter(int,android.graphics.PorterDuff.Mode).

Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter) or setColorFilter(int,android.graphics.PorterDuff.Mode) overrides tint.

Parameters
tint	ColorStateList?: Color state list to use for tinting this drawable, or null to clear the tint

See Also

• #setTint(int)
• #setTintMode(PorterDuff.Mode)
• #setTintBlendMode(BlendMode)

setTintMode

Added in API level 21

open fun setTintMode(tintMode: PorterDuff.Mode?): Unit

Specifies a tint blending mode for this drawable.

Defines how this drawable's tint color should be blended into the drawable before it is drawn to screen. Default tint mode is PorterDuff.Mode.SRC_IN.

Note: Setting a color filter via setColorFilter(android.graphics.ColorFilter) or setColorFilter(int,android.graphics.PorterDuff.Mode) overrides tint.

Parameters
tintMode	PorterDuff.Mode?: A Porter-Duff blending mode to apply to the drawable, a value of null sets the default Porter-Diff blending mode value of PorterDuff.Mode.SRC_IN

See Also

• #setTint(int)
• #setTintList(ColorStateList)

setVisible

Added in API level 1

open fun setVisible(
    visible: Boolean, 
    restart: Boolean
): Boolean

Set whether this Drawable is visible. This generally does not impact the Drawable's behavior, but is a hint that can be used by some Drawables, for example, to decide whether run animations.

Parameters
visible	Boolean: Set to true if visible, false if not.
restart	Boolean: You can supply true here to force the drawable to behave as if it has just become visible, even if it had last been set visible. Used for example to force animations to restart.

Return
Boolean	boolean Returns true if the new visibility is different than its previous state.

unscheduleSelf

Added in API level 1

open fun unscheduleSelf(what: Runnable): Unit

Use the current Callback implementation to have this Drawable unscheduled. Does nothing if there is no Callback attached to the Drawable.

Parameters
what	Runnable: The runnable that you no longer want called. This value cannot be null.

See Also

• android.graphics.drawable.Drawable.Callback#unscheduleDrawable

Protected methods

onBoundsChange

Added in API level 1

protected open fun onBoundsChange(bounds: Rect): Unit

Override this in your subclass to change appearance if you vary based on the bounds.

Parameters
bounds	Rect: This value cannot be null.

onLevelChange

Added in API level 1

protected open fun onLevelChange(level: Int): Boolean

Override this in your subclass to change appearance if you vary based on level.

Return
Boolean	Returns true if the level change has caused the appearance of the Drawable to change (that is, it needs to be drawn), else false if it looks the same and there is no need to redraw it since its last level.

onStateChange

Added in API level 1

protected open fun onStateChange(state: IntArray): Boolean

Override this in your subclass to change appearance if you recognize the specified state.

Parameters
state	IntArray: This value cannot be null.

Return
Boolean	Returns true if the state change has caused the appearance of the Drawable to change (that is, it needs to be drawn), else false if it looks the same and there is no need to redraw it since its last state.