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Drawable

public abstract class Drawable
extends Object

java.lang.Object
↳	android.graphics.drawable.Drawable

Known direct subclasses

AdaptiveIconDrawable, AnimatedImageDrawable, AnimatedVectorDrawable, BitmapDrawable, ColorDrawable, ColorStateListDrawable, DrawableContainer, DrawableWrapper, GradientDrawable, LayerDrawable, NinePatchDrawable, PictureDrawable, ShapeDrawable, VectorDrawable

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 `VectorDrawable` with animations defined using `ObjectAnimator` or `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 `Drawable`s 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 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(Rect) 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(Rect) 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(int[]) 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(int) 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(Drawable.Callback)) so that animations will work. A simple way to do this is through the system facilities such as View.setBackground(Drawable) and 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
`interface`	`Drawable.Callback` Implement this interface if you want to create an animated drawable that extends `Drawable`.
`class`	`Drawable.ConstantState` This abstract class is used by `Drawable`s to store shared constant state and data between Drawables.

Public constructors
`Drawable()`

Public methods
`void`	`applyTheme(Resources.Theme t)` Applies the specified theme to this Drawable and its children.
`boolean`	`canApplyTheme()`
`void`	`clearColorFilter()` Removes the color filter for this drawable.
`final Rect`	`copyBounds()` Return a copy of the drawable's bounds in a new Rect.
`final void`	`copyBounds(Rect bounds)` Return a copy of the drawable's bounds in the specified Rect (allocated by the caller).
`static Drawable`	`createFromPath(String pathName)` Create a drawable from file path name.
`static Drawable`	`createFromResourceStream(Resources res, TypedValue value, InputStream is, String srcName, BitmapFactory.Options opts)` This method is deprecated. Prefer the version without an Options object.
`static Drawable`	`createFromResourceStream(Resources res, TypedValue value, InputStream is, String srcName)` Create a drawable from an inputstream, using the given resources and value to determine density information.
`static Drawable`	`createFromStream(InputStream is, String srcName)` Create a drawable from an inputstream
`static Drawable`	`createFromXml(Resources r, XmlPullParser parser)` Create a drawable from an XML document.
`static Drawable`	`createFromXml(Resources r, XmlPullParser parser, Resources.Theme theme)` Create a drawable from an XML document using an optional `Theme`.
`static Drawable`	`createFromXmlInner(Resources r, XmlPullParser parser, AttributeSet attrs, Resources.Theme theme)` Create a drawable from inside an XML document using an optional `Theme`.
`static Drawable`	`createFromXmlInner(Resources r, XmlPullParser parser, AttributeSet attrs)` Create from inside an XML document.
`abstract void`	`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).
`int`	`getAlpha()` Gets the current alpha value for the drawable.
`final Rect`	`getBounds()` Return the drawable's bounds Rect.
`Drawable.Callback`	`getCallback()` Return the current `Callback` implementation attached to this Drawable.
`int`	`getChangingConfigurations()` Return a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.
`ColorFilter`	`getColorFilter()` Returns the current color filter, or `null` if none set.
`Drawable.ConstantState`	`getConstantState()` Return a `ConstantState` instance that holds the shared state of this Drawable.
`Drawable`	`getCurrent()`
`Rect`	`getDirtyBounds()` Return the drawable's dirty bounds Rect.
`void`	`getHotspotBounds(Rect outRect)` Populates `outRect` with the hotspot bounds.
`int`	`getIntrinsicHeight()` Returns the drawable's intrinsic height.
`int`	`getIntrinsicWidth()` Returns the drawable's intrinsic width.
`int`	`getLayoutDirection()` Returns the resolved layout direction for this Drawable.
`final int`	`getLevel()` Retrieve the current level.
`int`	`getMinimumHeight()` Returns the minimum height suggested by this Drawable.
`int`	`getMinimumWidth()` Returns the minimum width suggested by this Drawable.
`abstract int`	`getOpacity()` This method is deprecated. This method is no longer used in graphics optimizations
`Insets`	`getOpticalInsets()` Return in insets the layout insets suggested by this Drawable for use with alignment operations during layout.
`void`	`getOutline(Outline outline)` Called to get the drawable to populate the Outline that defines its drawing area.
`boolean`	`getPadding(Rect padding)` Return in padding the insets suggested by this Drawable for placing content inside the drawable's bounds.
`int[]`	`getState()` Describes the current state, as a union of primitve states, such as `R.attr.state_focused`, `R.attr.state_selected`, etc.
`Region`	`getTransparentRegion()` Returns a Region representing the part of the Drawable that is completely transparent.
`boolean`	`hasFocusStateSpecified()` Indicates whether this drawable has at least one state spec explicitly specifying `R.attr.state_focused`.
`void`	`inflate(Resources r, XmlPullParser parser, AttributeSet attrs, Resources.Theme theme)` Inflate this Drawable from an XML resource optionally styled by a theme.
`void`	`inflate(Resources r, XmlPullParser parser, AttributeSet attrs)` Inflate this Drawable from an XML resource.
`void`	`invalidateSelf()` Use the current `Callback` implementation to have this Drawable redrawn.
`boolean`	`isAutoMirrored()` Tells if this Drawable will be automatically mirrored when its layout direction is RTL right-to-left.
`boolean`	`isFilterBitmap()`
`boolean`	`isProjected()` Whether this drawable requests projection.
`boolean`	`isStateful()` Indicates whether this drawable will change its appearance based on state.
`final boolean`	`isVisible()`
`void`	`jumpToCurrentState()` If this Drawable does transition animations between states, ask that it immediately jump to the current state and skip any active animations.
`Drawable`	`mutate()` Make this drawable mutable.
`boolean`	`onLayoutDirectionChanged(int layoutDirection)` Called when the drawable's resolved layout direction changes.
`static int`	`resolveOpacity(int op1, int op2)` Return the appropriate opacity value for two source opacities.
`void`	`scheduleSelf(Runnable what, long when)` Use the current `Callback` implementation to have this Drawable scheduled.
`abstract void`	`setAlpha(int alpha)` Specify an alpha value for the drawable.
`void`	`setAutoMirrored(boolean mirrored)` Set whether this Drawable is automatically mirrored when its layout direction is RTL (right-to left).
`void`	`setBounds(int left, int top, int right, int bottom)` Specify a bounding rectangle for the Drawable.
`void`	`setBounds(Rect bounds)` Specify a bounding rectangle for the Drawable.
`final void`	`setCallback(Drawable.Callback cb)` Bind a `Callback` object to this Drawable.
`void`	`setChangingConfigurations(int configs)` Set a mask of the configuration parameters for which this drawable may change, requiring that it be re-created.
`void`	`setColorFilter(int color, PorterDuff.Mode mode)` This method is deprecated. use `setColorFilter(android.graphics.ColorFilter)` with an instance of `BlendModeColorFilter`
`abstract void`	`setColorFilter(ColorFilter colorFilter)` Specify an optional color filter for the drawable.
`void`	`setDither(boolean dither)` This method is deprecated. This property is ignored.
`void`	`setFilterBitmap(boolean filter)` Set to true to have the drawable filter its bitmaps with bilinear sampling when they are scaled or rotated.
`void`	`setHotspot(float x, float y)` Specifies the hotspot's location within the drawable.
`void`	`setHotspotBounds(int left, int top, int right, int bottom)` Sets the bounds to which the hotspot is constrained, if they should be different from the drawable bounds.
`final boolean`	`setLayoutDirection(int layoutDirection)` Set the layout direction for this drawable.
`final boolean`	`setLevel(int level)` Specify the level for the drawable.
`boolean`	`setState(int[] stateSet)` Specify a set of states for the drawable.
`void`	`setTint(int tintColor)` Specifies tint color for this drawable.
`void`	`setTintBlendMode(BlendMode blendMode)` Specifies a tint blending mode for this drawable.
`void`	`setTintList(ColorStateList tint)` Specifies tint color for this drawable as a color state list.
`void`	`setTintMode(PorterDuff.Mode tintMode)` Specifies a tint blending mode for this drawable.
`boolean`	`setVisible(boolean visible, boolean restart)` Set whether this Drawable is visible.
`void`	`unscheduleSelf(Runnable what)` Use the current `Callback` implementation to have this Drawable unscheduled.

Protected methods
`void`	`onBoundsChange(Rect bounds)` Override this in your subclass to change appearance if you vary based on the bounds.
`boolean`	`onLevelChange(int level)` Override this in your subclass to change appearance if you vary based on level.
`boolean`	`onStateChange(int[] state)` Override this in your subclass to change appearance if you recognize the specified state.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

Drawable

public Drawable ()

Public methods

applyTheme

public void applyTheme (Resources.Theme t)

Applies the specified theme to this Drawable and its children.

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

canApplyTheme

public boolean canApplyTheme ()

Returns
`boolean`

clearColorFilter

public void clearColorFilter ()

Removes the color filter for this drawable.

copyBounds

public final Rect copyBounds ()

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).

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

copyBounds

public final void copyBounds (Rect bounds)

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

public static Drawable createFromPath (String pathName)

Create a drawable from file path name.

Parameters
`pathName`	`String`

Returns
`Drawable`	This value may be `null`.

createFromResourceStream

public static Drawable createFromResourceStream (Resources res, 
                TypedValue value, 
                InputStream is, 
                String srcName, 
                BitmapFactory.Options opts)

This method is 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`.

Returns
`Drawable`	This value may be `null`.

createFromResourceStream

public static Drawable createFromResourceStream (Resources res, 
                TypedValue value, 
                InputStream is, 
                String srcName)

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

Parameters
`res`	`Resources`
`value`	`TypedValue`
`is`	`InputStream`
`srcName`	`String`

Returns
`Drawable`

createFromStream

public static Drawable createFromStream (InputStream is, 
                String srcName)

Create a drawable from an inputstream

Parameters
`is`	`InputStream`
`srcName`	`String`

Returns
`Drawable`

createFromXml

public static Drawable createFromXml (Resources r, 
                XmlPullParser parser)

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`.

Returns
`Drawable`	This value cannot be `null`.

Throws
`IOException`
`XmlPullParserException`

createFromXml

public static Drawable createFromXml (Resources r, 
                XmlPullParser parser, 
                Resources.Theme theme)

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`.

Returns
`Drawable`	This value cannot be `null`.

Throws
`IOException`
`XmlPullParserException`

createFromXmlInner

public static Drawable createFromXmlInner (Resources r, 
                XmlPullParser parser, 
                AttributeSet attrs, 
                Resources.Theme theme)

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`.

Returns
`Drawable`

Throws
`IOException`
`XmlPullParserException`

createFromXmlInner

public static Drawable createFromXmlInner (Resources r, 
                XmlPullParser parser, 
                AttributeSet attrs)

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`.

Returns
`Drawable`

Throws
`IOException`
`XmlPullParserException`

draw

public abstract void 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).

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

getAlpha

public int getAlpha ()

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.

Returns
`int`	Value is between 0 and 255 inclusive

getBounds

public final Rect getBounds ()

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.

Returns
`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:

getCallback

public Drawable.Callback getCallback ()

Return the current Callback implementation attached to this Drawable.

Returns
`Drawable.Callback`	A `Callback` instance or null if no callback was set.

See also:

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

getChangingConfigurations

public int getChangingConfigurations ()

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.

Returns

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

int

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

See also:

ActivityInfo

getColorFilter

public ColorFilter getColorFilter ()

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

Returns
`ColorFilter`	the current color filter, or `null` if none set

getConstantState

public Drawable.ConstantState getConstantState ()

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

Returns
`Drawable.ConstantState`	The ConstantState associated to that Drawable. This value may be `null`.

See also:

getCurrent

public Drawable getCurrent ()

Returns
`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

public Rect getDirtyBounds ()

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.

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

getHotspotBounds

public void getHotspotBounds (Rect outRect)

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

public int getIntrinsicHeight ()

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.

Returns
`int`	the intrinsic height, or -1 if no intrinsic height

getIntrinsicWidth

public int getIntrinsicWidth ()

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.

Returns
`int`	the intrinsic width, or -1 if no intrinsic width

getLayoutDirection

public int getLayoutDirection ()

Returns the resolved layout direction for this Drawable.

Returns
`int`	One of `View.LAYOUT_DIRECTION_LTR`, `View.LAYOUT_DIRECTION_RTL` Value is `View.LAYOUT_DIRECTION_LTR`, or `View.LAYOUT_DIRECTION_RTL`

See also:

setLayoutDirection(int)

getLevel

public final int getLevel ()

Retrieve the current level.

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

getMinimumHeight

public int getMinimumHeight ()

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.

Returns
`int`	The minimum height suggested by this Drawable. If this Drawable doesn't have a suggested minimum height, 0 is returned.

getMinimumWidth

public int getMinimumWidth ()

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.

Returns
`int`	The minimum width suggested by this Drawable. If this Drawable doesn't have a suggested minimum width, 0 is returned.

getOpacity

public abstract int getOpacity ()

This method is 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 PixelFormat: PixelFormat.UNKNOWN, PixelFormat.TRANSLUCENT, PixelFormat.TRANSPARENT, or 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(int, int) 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(int) or setColorFilter(ColorFilter) methods. Some subclasses, such as BitmapDrawable, ColorDrawable, and GradientDrawable, do account for the value of setAlpha(int), but the general behavior is dependent upon the implementation of the subclass.

Returns
`int`	int The opacity class of the Drawable. Value is `PixelFormat.UNKNOWN`, `PixelFormat.TRANSLUCENT`, `PixelFormat.TRANSPARENT`, or `PixelFormat.OPAQUE`

See also:

PixelFormat

getOpticalInsets

public Insets getOpticalInsets ()

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

Returns
`Insets`	This value cannot be `null`.

getOutline

public void getOutline (Outline outline)

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

This method is called by the default 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:

View.setOutlineProvider(android.view.ViewOutlineProvider)

getPadding

public boolean getPadding (Rect padding)

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`.

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

getState

public int[] getState ()

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

Returns
`int[]`	An array of resource Ids describing the current state. This value cannot be `null`.

getTransparentRegion

public Region getTransparentRegion ()

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.

Returns
`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

public boolean hasFocusStateSpecified ()

Indicates whether this drawable has at least one state spec explicitly specifying 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 R.attr.state_focused to make sure the user knows which view is holding the focus.

Returns
`boolean`	`true` if `R.attr.state_focused` is specified for this drawable.

inflate

public void inflate (Resources r, 
                XmlPullParser parser, 
                AttributeSet attrs, 
                Resources.Theme theme)

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 This value may be `null`.

Throws
	org.xmlpull.v1.XmlPullParserException
	java.io.IOException
`IOException`
`XmlPullParserException`

inflate

public void inflate (Resources r, 
                XmlPullParser parser, 
                AttributeSet attrs)

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`.

Throws
`IOException`
`XmlPullParserException`

See also:

inflate(Resources, XmlPullParser, AttributeSet, Theme)

invalidateSelf

public void invalidateSelf ()

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

See also:

isAutoMirrored

public boolean isAutoMirrored ()

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

Returns
`boolean`	boolean Returns true if this Drawable will be automatically mirrored.

isFilterBitmap

public boolean isFilterBitmap ()

Returns
`boolean`	whether this drawable filters its bitmaps

See also:

setFilterBitmap(boolean)

isProjected

public boolean isProjected ()

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

Returns
`boolean`

See also:

RenderNode.setProjectBackwards(boolean)

isStateful

public boolean isStateful ()

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.

Returns
`boolean`	True if this drawable changes its appearance based on state, false otherwise.

See also:

setState(int[])

isVisible

public final boolean isVisible ()

Returns
`boolean`

jumpToCurrentState

public void jumpToCurrentState ()

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

mutate

public Drawable mutate ()

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.

Returns
`Drawable`	This drawable. This value cannot be `null`.

See also:

onLayoutDirectionChanged

public boolean onLayoutDirectionChanged (int layoutDirection)

Called when the drawable's resolved layout direction changes.

Parameters
`layoutDirection`	`int`: the new resolved layout direction Value is `View.LAYOUT_DIRECTION_LTR`, or `View.LAYOUT_DIRECTION_RTL`

Returns
`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

public static int resolveOpacity (int op1, 
                int op2)

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 `PixelFormat.UNKNOWN`, `PixelFormat.TRANSLUCENT`, `PixelFormat.TRANSPARENT`, or `PixelFormat.OPAQUE`
`op2`	`int`: Another opacity value. Value is `PixelFormat.UNKNOWN`, `PixelFormat.TRANSLUCENT`, `PixelFormat.TRANSPARENT`, or `PixelFormat.OPAQUE`

Returns
`int`	int The combined opacity value. Value is `PixelFormat.UNKNOWN`, `PixelFormat.TRANSLUCENT`, `PixelFormat.TRANSPARENT`, or `PixelFormat.OPAQUE`

See also:

getOpacity()

scheduleSelf

public void scheduleSelf (Runnable what, 
                long when)

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:

Drawable.Callback.scheduleDrawable(Drawable, Runnable, long)

setAlpha

public abstract void setAlpha (int alpha)

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

public void setAutoMirrored (boolean mirrored)

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

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

setBounds

public void setBounds (int left, 
                int top, 
                int right, 
                int bottom)

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

Parameters
`left`	`int`
`top`	`int`
`right`	`int`
`bottom`	`int`

setBounds

public void setBounds (Rect bounds)

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`.

setCallback

public final void setCallback (Drawable.Callback cb)

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

public void setChangingConfigurations (int configs)

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 ActivityInfo. Value is either 0 or a combination of ActivityInfo.CONFIG_MCC, ActivityInfo.CONFIG_MNC, ActivityInfo.CONFIG_LOCALE, ActivityInfo.CONFIG_TOUCHSCREEN, ActivityInfo.CONFIG_KEYBOARD, ActivityInfo.CONFIG_KEYBOARD_HIDDEN, ActivityInfo.CONFIG_NAVIGATION, ActivityInfo.CONFIG_ORIENTATION, ActivityInfo.CONFIG_SCREEN_LAYOUT, ActivityInfo.CONFIG_UI_MODE, ActivityInfo.CONFIG_SCREEN_SIZE, ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE, ActivityInfo.CONFIG_DENSITY, ActivityInfo.CONFIG_LAYOUT_DIRECTION, ActivityInfo.CONFIG_COLOR_MODE, and ActivityInfo.CONFIG_FONT_SCALE

See also:

ActivityInfo

setColorFilter

public void setColorFilter (int color, 
                PorterDuff.Mode mode)

This method is deprecated.
use setColorFilter(android.graphics.ColorFilter) with an instance of 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
`color`	`int`
`mode`	`PorterDuff.Mode`: This value cannot be `null`.

See also:

setColorFilter(ColorFilter)

setColorFilter

public abstract void setColorFilter (ColorFilter colorFilter)

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 This value may be `null`.

setDither

public void setDither (boolean dither)

This method is 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.

Parameters
`dither`	`boolean`

See also:

Paint.setDither(boolean)

setFilterBitmap

public void setFilterBitmap (boolean filter)

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.

Parameters
`filter`	`boolean`

See also:

setHotspot

public void setHotspot (float x, 
                float y)

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

public void setHotspotBounds (int left, 
                int top, 
                int right, 
                int bottom)

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

public final boolean setLayoutDirection (int layoutDirection)

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 `View.LAYOUT_DIRECTION_LTR` or `View.LAYOUT_DIRECTION_RTL` Value is `View.LAYOUT_DIRECTION_LTR`, or `View.LAYOUT_DIRECTION_RTL`

Returns
`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

public final boolean setLevel (int level)

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

Returns
`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

public boolean setState (int[] stateSet)

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: [R.attr.state_focused, 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`	`int`: The new set of states to be displayed. This value cannot be `null`.

Returns
`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

public void setTint (int tintColor)

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:

setTintBlendMode

public void setTintBlendMode (BlendMode blendMode)

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` This value may be `null`.

See also:

setTintList

public void setTintList (ColorStateList tint)

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 This value may be `null`.

See also:

setTintMode

public void setTintMode (PorterDuff.Mode tintMode)

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` This value may be `null`.

See also:

setVisible

public boolean setVisible (boolean visible, 
                boolean restart)

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.

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

unscheduleSelf

public void unscheduleSelf (Runnable what)

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:

Drawable.Callback.unscheduleDrawable(Drawable, Runnable)

Protected methods

onBoundsChange

protected void onBoundsChange (Rect bounds)

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

Parameters
`bounds`	`Rect`

onLevelChange

protected boolean onLevelChange (int level)

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

Parameters
`level`	`int`

Returns
`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

protected boolean onStateChange (int[] state)

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

Parameters
`state`	`int`

Returns
`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.

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applyTheme

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createFromPath

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createFromStream

createFromXml

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getAlpha

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getOpticalInsets

getOutline

getPadding

getState

getTransparentRegion

hasFocusStateSpecified

inflate

inflate

invalidateSelf

isAutoMirrored

isFilterBitmap

isProjected

isStateful

isVisible

jumpToCurrentState

mutate

onLayoutDirectionChanged

resolveOpacity

scheduleSelf

setAlpha

setAutoMirrored

setBounds

setBounds

setCallback

setChangingConfigurations

setColorFilter

setColorFilter

setDither

setFilterBitmap

setHotspot

setHotspotBounds

setLayoutDirection

setLevel

setState

setTint