Package com.opensourcewithslu.inputdevices

Class PushButtonHelper

java.lang.Object

com.opensourcewithslu.inputdevices.PushButtonHelper

public class PushButtonHelper
extends Object

The PushButtonHelper class is used to create a listener that determines when a 4 pin button is pressed.

Field Summary

Fields

Modifier and Type	Field	Description
Boolean	isPressed	Determines if the button is pressed.

Constructor Summary

Constructors

Constructor	Description
PushButtonHelper(com.pi4j.io.gpio.digital.DigitalInput buttonInput)	The PushButtonHelper constructor.

Method Summary

Modifier and Type	Method	Description
void	addEventListener(com.pi4j.io.gpio.digital.DigitalStateChangeListener function)	Adds an EventListener to the PushButton.
void	initialize()	Initializes the PushButton.
void	removeEventListener(com.pi4j.io.gpio.digital.DigitalStateChangeListener function)	Removes an EvenListener from the button.

Methods inherited from class java.lang.Object

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

Field Details

isPressed

public Boolean isPressed

Determines if the button is pressed.

Constructor Details

PushButtonHelper

public PushButtonHelper(com.pi4j.io.gpio.digital.DigitalInput buttonInput)

The PushButtonHelper constructor.

Parameters:

buttonInput - A Pi4J DigitalInput Object.

Method Details

initialize

public void initialize()

Initializes the PushButton. Automatically called when the PushButton is created.

addEventListener

public void addEventListener(com.pi4j.io.gpio.digital.DigitalStateChangeListener function)

Adds an EventListener to the PushButton.

Parameters:

function - A DigitalStateChangeListener Object.

removeEventListener

public void removeEventListener(com.pi4j.io.gpio.digital.DigitalStateChangeListener function)

Removes an EvenListener from the button.

Parameters:

function - The listener to be removed.