crossmobile.ios.uikit

Class UIGraphics

java.lang.Object

crossmobile.ios.uikit.UIGraphics

public final class UIGraphics
extends Object

UIGraphics class defines methods for creating and displaying images to custom views using bitmap image context stored in a stack.

Method Summary

Modifier and Type	Method and Description
static void	beginImageContext(CGSize size) Creates an bitmap-based image context of the specified option.
static void	beginImageContextWithOptions(CGSize size, boolean opaque, double scale) Creates an bitmap-based image context using the specified parameters.
static void	endImageContext() Pops the current bitmap-based image context from the top of the stack.
static CGContext	getCurrentContext() Returns the current graphics context.
static UIImage	getImageFromCurrentImageContext() Returns the content of the current context as an image.
static void	popContext() Pops the top context from the stack and restores the previous as current graphics context.
static void	pushContext(CGContext context) Pushes the specified context to the stack and makes it current graphics context.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getCurrentContext

public static CGContext getCurrentContext()

Returns the current graphics context.

Returns:

The current graphics context.

pushContext

public static void pushContext(CGContext context)

Pushes the specified context to the stack and makes it current graphics context.

Parameters:

context - The new current context.

popContext

public static void popContext()

Pops the top context from the stack and restores the previous as current graphics context.

beginImageContext

public static void beginImageContext(CGSize size)

Creates an bitmap-based image context of the specified option.

Parameters:

size - The size of the bitmap-based image.

beginImageContextWithOptions

public static void beginImageContextWithOptions(CGSize size,
                                                boolean opaque,
                                                double scale)

Creates an bitmap-based image context using the specified parameters.

Parameters:

size - The size of the image.

opaque - TRUE the image is opaque.

scale - The scale of the image.

getImageFromCurrentImageContext

public static UIImage getImageFromCurrentImageContext()

Returns the content of the current context as an image.

Returns:

The content of the current context as an image.

endImageContext

public static void endImageContext()

Pops the current bitmap-based image context from the top of the stack.