org.metalev.multitouch.controller

Class MultiTouchController<T>

java.lang.Object

org.metalev.multitouch.controller.MultiTouchController<T>

public class MultiTouchController<T>
extends Object

A class that simplifies the implementation of multitouch in applications. Subclass this and read the fields here as needed in subclasses.

Author:

Luke Hutchison

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MultiTouchController.MultiTouchObjectCanvas<T>
static class	MultiTouchController.PointInfo A class that packages up all MotionEvent information with all derived multitouch information (if available)
static class	MultiTouchController.PositionAndScale A class that is used to store scroll offsets and scale information for objects that are managed by the multitouch controller

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEBUG Generate tons of log entries for debugging
static int	MAX_TOUCH_POINTS The max number of touch points that can be present on the screen at once
static boolean	multiTouchSupported

Constructor Summary

Constructors

Constructor and Description
MultiTouchController(MultiTouchController.MultiTouchObjectCanvas<T> objectCanvas) Constructor that sets handleSingleTouchEvents to true
MultiTouchController(MultiTouchController.MultiTouchObjectCanvas<T> objectCanvas, boolean handleSingleTouchEvents) Full constructor

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	getHandleSingleTouchEvents() Whether to handle single-touch events/drags before multi-touch is initiated or not; if not, they are handled by subclasses.
boolean	isPinching() Indicate if we are in the middle of a pinch action or not.
boolean	onTouchEvent(android.view.MotionEvent event) Process incoming touch events
protected void	setHandleSingleTouchEvents(boolean handleSingleTouchEvents) Whether to handle single-touch events/drags before multi-touch is initiated or not; if not, they are handled by subclasses.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_TOUCH_POINTS

public static final int MAX_TOUCH_POINTS

The max number of touch points that can be present on the screen at once

See Also:

Constant Field Values

DEBUG

public static final boolean DEBUG

Generate tons of log entries for debugging

See Also:

Constant Field Values

multiTouchSupported

public static final boolean multiTouchSupported

Constructor Detail

MultiTouchController

public MultiTouchController(MultiTouchController.MultiTouchObjectCanvas<T> objectCanvas)

Constructor that sets handleSingleTouchEvents to true

MultiTouchController

public MultiTouchController(MultiTouchController.MultiTouchObjectCanvas<T> objectCanvas,
                    boolean handleSingleTouchEvents)

Full constructor

Method Detail

setHandleSingleTouchEvents

protected void setHandleSingleTouchEvents(boolean handleSingleTouchEvents)

Whether to handle single-touch events/drags before multi-touch is initiated or not; if not, they are handled by subclasses. Default: true

getHandleSingleTouchEvents

protected boolean getHandleSingleTouchEvents()

Whether to handle single-touch events/drags before multi-touch is initiated or not; if not, they are handled by subclasses. Default: true

onTouchEvent

public boolean onTouchEvent(android.view.MotionEvent event)

Process incoming touch events

isPinching

public boolean isPinching()

Indicate if we are in the middle of a pinch action or not.