Package com.badlogic.gdx.input

Class GestureDetector.GestureAdapter

java.lang.Object

com.badlogic.gdx.input.GestureDetector.GestureAdapter

All Implemented Interfaces:

GestureDetector.GestureListener

Direct Known Subclasses:

CameraInputController.CameraGestureListener

Enclosing class:

GestureDetector

public static class GestureDetector.GestureAdapter
extends java.lang.Object
implements GestureDetector.GestureListener

Derrive from this if you only want to implement a subset of GestureDetector.GestureListener.

Constructor Summary

Constructors

Constructor	Description
GestureAdapter()

Method Summary

Modifier and Type	Method	Description
boolean	fling(float velocityX, float velocityY, int button)	Called when the user dragged a finger over the screen and lifted it.
boolean	longPress(float x, float y)
boolean	pan(float x, float y, float deltaX, float deltaY)	Called when the user drags a finger over the screen.
boolean	panStop(float x, float y, int pointer, int button)	Called when no longer panning.
boolean	pinch(Vector2 initialPointer1, Vector2 initialPointer2, Vector2 pointer1, Vector2 pointer2)	Called when a user performs a pinch zoom gesture.
void	pinchStop()	Called when no longer pinching.
boolean	tap(float x, float y, int count, int button)	Called when a tap occured.
boolean	touchDown(float x, float y, int pointer, int button)
boolean	zoom(float initialDistance, float distance)	Called when the user performs a pinch zoom gesture.

Methods inherited from class java.lang.Object

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

Constructor Detail

GestureAdapter

public GestureAdapter()

Method Detail

touchDown

public boolean touchDown(float x,
                         float y,
                         int pointer,
                         int button)

Specified by:

touchDown in interface GestureDetector.GestureListener

See Also:

InputProcessor.touchDown(int, int, int, int)

tap

public boolean tap(float x,
                   float y,
                   int count,
                   int button)

Description copied from interface: GestureDetector.GestureListener

Called when a tap occured. A tap happens if a touch went down on the screen and was lifted again without moving outside of the tap square. The tap square is a rectangular area around the initial touch position as specified on construction time of the GestureDetector.

Specified by:

tap in interface GestureDetector.GestureListener

count - the number of taps.

longPress

public boolean longPress(float x,
                         float y)

Specified by:

longPress in interface GestureDetector.GestureListener

fling

public boolean fling(float velocityX,
                     float velocityY,
                     int button)

Description copied from interface: GestureDetector.GestureListener

Called when the user dragged a finger over the screen and lifted it. Reports the last known velocity of the finger in pixels per second.

Specified by:

fling in interface GestureDetector.GestureListener

Parameters:

velocityX - velocity on x in seconds

velocityY - velocity on y in seconds

pan

public boolean pan(float x,
                   float y,
                   float deltaX,
                   float deltaY)

Description copied from interface: GestureDetector.GestureListener

Called when the user drags a finger over the screen.

Specified by:

pan in interface GestureDetector.GestureListener

deltaX - the difference in pixels to the last drag event on x.

deltaY - the difference in pixels to the last drag event on y.

panStop

public boolean panStop(float x,
                       float y,
                       int pointer,
                       int button)

Description copied from interface: GestureDetector.GestureListener

Called when no longer panning.

Specified by:

panStop in interface GestureDetector.GestureListener

zoom

public boolean zoom(float initialDistance,
                    float distance)

Description copied from interface: GestureDetector.GestureListener

Called when the user performs a pinch zoom gesture. The original distance is the distance in pixels when the gesture started.

Specified by:

zoom in interface GestureDetector.GestureListener

Parameters:

initialDistance - distance between fingers when the gesture started.

distance - current distance between fingers.

pinch

public boolean pinch(Vector2 initialPointer1,
                     Vector2 initialPointer2,
                     Vector2 pointer1,
                     Vector2 pointer2)

Description copied from interface: GestureDetector.GestureListener

Called when a user performs a pinch zoom gesture. Reports the initial positions of the two involved fingers and their current positions.

Specified by:

pinch in interface GestureDetector.GestureListener

pinchStop

public void pinchStop()

Description copied from interface: GestureDetector.GestureListener

Called when no longer pinching.

Specified by:

pinchStop in interface GestureDetector.GestureListener