Summary: XML Attrs | Ctors | Methods | Inherited Methods | [Expand All]

public class

ColorDrawable

extends Drawable

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

Class Overview

A specialized Drawable that fills the Canvas with a specified color, with respect to the clip region. Note that a ColorDrawable ignores the ColorFilter. It also ignores the Bounds, meaning it will draw everywhere in the current clip, even if setBounds(...) was called with a smaller area.

It can be defined in an XML file with the <color> element.

Summary

XML Attributes
Attribute Name	Related Method	Description
android:color		The color to use.

Public Constructors
	ColorDrawable() Creates a new black ColorDrawable.
	ColorDrawable(int color) Creates a new ColorDrawable with the specified color.

Public Methods
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() Returns the alpha value of this drawable's color.
int	getChangingConfigurations() Return a mask of the configuration parameters for which this drawable mau change, requiring that it be re-created.
Drawable.ConstantState	getConstantState()
int	getOpacity() Return the opacity/transparency of this Drawable.
void	inflate(Resources r, XmlPullParser parser, AttributeSet attrs)
void	setAlpha(int alpha) Sets the color's alpha value.
void	setColorFilter(ColorFilter colorFilter) Setting a color filter on a ColorDrawable has no effect.

[Expand]

Inherited Methods

From class android.graphics.drawable.Drawable

void	clearColorFilter()
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	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	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).
final Rect	getBounds() Return the drawable's bounds Rect.
int	getChangingConfigurations() Return a mask of the configuration parameters for which this drawable mau change, requiring that it be re-created.
Drawable.ConstantState	getConstantState()
Drawable	getCurrent()
int	getIntrinsicHeight() Return the intrinsic height of the underlying drawable object.
int	getIntrinsicWidth() Return the intrinsic width of the underlying drawable object.
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() Return the opacity/transparency of this Drawable.
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 state_focused, state_selected, etc.
Region	getTransparentRegion() Returns a Region representing the part of the Drawable that is completely transparent.
void	inflate(Resources r, XmlPullParser parser, AttributeSet attrs)
void	invalidateSelf() Use the current Drawable.Callback implementation to have this Drawable redrawn.
boolean	isStateful() Indicates whether this view will change its appearance based on state.
final boolean	isVisible()
Drawable	mutate() Make this drawable mutable.
void	onBoundsChange(Rect bounds) Override this in your subclass to change appearance if you recognize the specified state.
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.
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 Drawable.Callback implementation to have this Drawable scheduled.
abstract void	setAlpha(int alpha) Specify an alpha value for the drawable.
void	setBounds(Rect bounds) Specify a bounding rectangle for the Drawable.
void	setBounds(int left, int top, int right, int bottom) Specify a bounding rectangle for the Drawable.
final void	setCallback(Drawable.Callback cb) Bind a Drawable.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.
abstract void	setColorFilter(ColorFilter cf) Specify an optional colorFilter for the drawable.
void	setColorFilter(int color, PorterDuff.Mode mode) Specify a color and porterduff mode to be the colorfilter for this drawable.
void	setDither(boolean dither) Set to true to have the drawable dither its colors when drawn to a device with fewer than 8-bits per color component.
void	setFilterBitmap(boolean filter) Set to true to have the drawable filter its bitmap when scaled or rotated (for drawables that use bitmaps).
final boolean	setLevel(int level) Specify the level for the drawable.
boolean	setState(int[] stateSet) Specify a set of states for the drawable.
boolean	setVisible(boolean visible, boolean restart) Set whether this Drawable is visible.
void	unscheduleSelf(Runnable what) Use the current Drawable.Callback implementation to have this Drawable unscheduled.

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Is called before the object's memory is being reclaimed by the VM.
final Class<? extends Object>	getClass() Returns the unique instance of Class which represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.

XML Attributes

android:color

The color to use.

Must be a color value, in the form of "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol color.

Related Methods

Public Constructors

public ColorDrawable ()

Creates a new black ColorDrawable.

public ColorDrawable (int color)

Creates a new ColorDrawable with the specified color.

Parameters

color	The color to draw.

Public Methods

public 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	The canvas to draw into

public int getAlpha ()

Returns the alpha value of this drawable's color.

Returns

A value between 0 and 255.

public int getChangingConfigurations ()

Return a mask of the configuration parameters for which this drawable mau 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 a mask of the changing configuration parameters, as defined by Configuration.

public Drawable.ConstantState getConstantState ()

public int getOpacity ()

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

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 take into account a custom alpha or color filter that has been applied by the client through the setAlpha(int) or setColorFilter(ColorFilter) methods.

Returns

int The opacity class of the Drawable.

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

Throws

XmlPullParserException
IOException

public void setAlpha (int alpha)

Sets the color's alpha value.

Parameters

alpha	The alpha value to set, between 0 and 255.

public void setColorFilter (ColorFilter colorFilter)

Setting a color filter on a ColorDrawable has no effect.

Parameters

colorFilter	Ignore.

Interfaces

Classes

Enums

ColorDrawable

Class Overview

Summary

XML Attributes

android:color

Related Methods

Public Constructors

public ColorDrawable ()

public ColorDrawable (int color)

Parameters

Public Methods

public void draw (Canvas canvas)

Parameters

public int getAlpha ()

Returns

public int getChangingConfigurations ()

Returns

public Drawable.ConstantState getConstantState ()

public int getOpacity ()

Returns

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

Throws

public void setAlpha (int alpha)

Parameters

public void setColorFilter (ColorFilter colorFilter)

Parameters