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

public class

NinePatch

extends Object

java.lang.Object
↳	android.graphics.NinePatch

Class Overview

The NinePatch class permits drawing a bitmap in nine sections. The four corners are unscaled; the four edges are scaled in one axis, and the middle is scaled in both axes. Normally, the middle is transparent so that the patch can provide a selection about a rectangle. Essentially, it allows the creation of custom graphics that will scale the way that you define, when content added within the image exceeds the normal bounds of the graphic. For a thorough explanation of a NinePatch image, read the discussion in the 2D Graphics document.

The Draw 9-Patch tool offers an extremely handy way to create your NinePatch images, using a WYSIWYG graphics editor.

Summary

Public Constructors
	NinePatch(Bitmap bitmap, byte[] chunk, String srcName) Create a drawable projection from a bitmap to nine patches.

Public Methods
void	draw(Canvas canvas, Rect location) Draw a bitmap of nine patches.
void	draw(Canvas canvas, Rect location, Paint paint) Draw a bitmap of nine patches.
void	draw(Canvas canvas, RectF location) Draw a bitmap of nine patches.
int	getDensity() Return the underlying bitmap's density, as per `Bitmap.getDensity()`.
int	getHeight()
final Region	getTransparentRegion(Rect location)
int	getWidth()
final boolean	hasAlpha()
static boolean	isNinePatchChunk(byte[] chunk)
void	setPaint(Paint p)

[Expand]

Inherited Methods

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() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that 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() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method 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.

Public Constructors

public NinePatch (Bitmap bitmap, byte[] chunk, String srcName)

Since: API Level 1

Create a drawable projection from a bitmap to nine patches.

Parameters

bitmap	The bitmap describing the patches.
chunk	The 9-patch data chunk describing how the underlying bitmap is split apart and drawn.
srcName	The name of the source for the bitmap. Might be null.

Public Methods

public void draw (Canvas canvas, Rect location)

Since: API Level 1

Draw a bitmap of nine patches.

Parameters

canvas	A container for the current matrix and clip used to draw the bitmap.
location	Where to draw the bitmap.

public void draw (Canvas canvas, Rect location, Paint paint)

Since: API Level 1

Draw a bitmap of nine patches.

Parameters

canvas	A container for the current matrix and clip used to draw the bitmap.
location	Where to draw the bitmap.
paint	The Paint to draw through.

public void draw (Canvas canvas, RectF location)

Since: API Level 1

Draw a bitmap of nine patches.

Parameters

canvas	A container for the current matrix and clip used to draw the bitmap.
location	Where to draw the bitmap.

public int getDensity ()

Since: API Level 4

Return the underlying bitmap's density, as per Bitmap.getDensity().

Interfaces

Classes

Enums

Exceptions

NinePatch

Class Overview

Summary

Public Constructors

public NinePatch (Bitmap bitmap, byte[] chunk, String srcName)

Parameters

Public Methods

public void draw (Canvas canvas, Rect location)

Parameters

public void draw (Canvas canvas, Rect location, Paint paint)

Parameters

public void draw (Canvas canvas, RectF location)

Parameters

public int getDensity ()

public int getHeight ()

public final Region getTransparentRegion (Rect location)

public int getWidth ()

public final boolean hasAlpha ()

public static boolean isNinePatchChunk (byte[] chunk)

public void setPaint (Paint p)