Checks whether the given Key event is any of DPAD down, DPAD up, NUMPAD down or NUMPAD up. - Android User Interface

Android examples for User Interface:Key Event

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Description

Checks whether the given Key event is any of DPAD down, DPAD up, NUMPAD down or NUMPAD up.

Demo Code

// Copyright 2012 The Chromium Authors. All rights reserved.
//package com.java2s;
import android.view.KeyEvent;

public class Main {
    /**/*from  w  w w .j  av  a2  s.c  o  m*/
     * Checks whether the given event is any of DPAD down, DPAD up, NUMPAD down or NUMPAD up.
     * @param event Event to be checked.
     * @return Whether the event should be processed as any of navigation up or navigation down.
     */
    public static boolean isGoUpOrDown(KeyEvent event) {
        return isGoDown(event) || isGoUp(event);
    }

    /**
     * Checks whether the given event is any of DPAD down or NUMPAD down.
     * @param event Event to be checked.
     * @return Whether the event should be processed as a navigation down.
     */
    public static boolean isGoDown(KeyEvent event) {
        return isActionDown(event)
                && (event.getKeyCode() == KeyEvent.KEYCODE_DPAD_DOWN || (!event
                        .isNumLockOn() && event.getKeyCode() == KeyEvent.KEYCODE_NUMPAD_2));
    }

    /**
     * Checks whether the given event is any of DPAD up or NUMPAD up.
     * @param event Event to be checked.
     * @return Whether the event should be processed as a navigation up.
     */
    public static boolean isGoUp(KeyEvent event) {
        return isActionDown(event)
                && (event.getKeyCode() == KeyEvent.KEYCODE_DPAD_UP || (!event
                        .isNumLockOn() && event.getKeyCode() == KeyEvent.KEYCODE_NUMPAD_8));
    }

    /**
     * Checks whether the given event is an ACTION_DOWN event.
     * @param event Event to be checked.
     * @return Whether the event is an ACTION_DOWN event.
     */
    public static boolean isActionDown(KeyEvent event) {
        return event.getAction() == KeyEvent.ACTION_DOWN;
    }
}

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