settingeditor.java

来自「一个关于沉船的J2ME小游戏」· Java 代码 · 共 84 行

//
// Copyright 2002 Nokia Corporation
//
// THIS SOURCE CODE IS PROVIDED 'AS IS', WITH NO WARRANTIES WHATSOEVER,
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// Furthermore, information provided in this source code is preliminary,
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// Phones Ltd. retains the right to make changes to this source code at
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import javax.microedition.lcdui.*;


// Class SettingEditor is a screen for simple editing of
// binary (on / off) type settings.

class SettingEditor
    extends List
    implements CommandListener
{
    private final BlitzMIDlet midlet;


    SettingEditor(BlitzMIDlet midlet, Dictionary dictionary,
                  String settingName, boolean isSettingOn)
    {
        super(settingName, List.IMPLICIT);
        this.midlet = midlet;

        append(dictionary.getString(Dictionary.LABEL_ON), null); // index 0
        append(dictionary.getString(Dictionary.LABEL_OFF), null); // index 1
        if (isSettingOn)
        {
            setSelectedIndex(0, true); // select on
        }
        else
        {
            setSelectedIndex(1, true); // select off
        }

        addCommand(new Command(dictionary.getString(Dictionary.LABEL_BACK),
                               Command.BACK, 1));
        setCommandListener(this);
    }


    public void commandAction(Command command, Displayable d)
    {
        if (command == List.SELECT_COMMAND)
        {
            boolean isSettingOn = (getSelectedIndex() == 0);
            midlet.settingEditorSave(this.getTitle(), isSettingOn);
        }
        else
        {
            // the application code only adds one command: Back
            midlet.settingEditorBack();
        }
    }
}