Android Open Source - minecraft-connect-4 Main Menu Activity

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License

The source code is released under:

MIT License

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Java Source Code

/* COPYRIGHT (C) 2014 Aleksandr Belkin. All Rights Reserved. */
package sq.squ1rr.mcc4;
/*from w w w. j a v  a 2 s  . c om*/
import java.util.ArrayList;

import sq.squ1rr.mcc4.layout.LayoutManager;
import sq.squ1rr.mcc4.util.GlobalConstants;
import android.os.Bundle;
import android.util.Log;

/**
 * Main application activity. The program will launch from here.
 * Displays menu from which user may choose what to do next.
 * Does not use XML layout.
 * @author Aleksandr Belkin
 */
public class MainMenuActivity extends BaseActivity {
    /** tag name for debug */
    private static final String TAG = MainMenuActivity.class.getName();
    
    /** Menu IDs */
    public enum MenuId {
        MAIN_MENU, QUICK_GAME, STATS, OPTIONS, ABOUT;
    }
    
    /** currently shown menu */
    private MenuId menuId = null;
    
    /** layout manager to manage the current layout */
    private LayoutManager layout;
    
    /** history of opened menus */
    private final ArrayList<MenuId> history = new ArrayList<MenuId>();

    /*
     * (non-Javadoc)
     * @see sq.squ1rr.mcc4.util.FullscreenActivity#onCreate(android.os.Bundle)
     */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        layout = new LayoutManager(this);
        showMenu(MenuId.MAIN_MENU, false);
    }
    
    /**
     * Shows selected menu
     * @param menuId
     */
    public void showMenu(MenuId menuId) {
        showMenu(menuId, true);
    }
    
    /**
     * Show menu if it's not the same already
     * @param menuId which menu
     */
    private void showMenu(MenuId _menuId, boolean save) {
        if(menuId == _menuId) return;
        else {
            if(save) history.add(menuId);
            menuId = _menuId;
        }

        switch(menuId) {
        case MAIN_MENU: layout.setLayout(new MainMenu(this)); break;
        case QUICK_GAME: layout.setLayout(new QuickGameMenu(this)); break;
        case STATS: layout.setLayout(new StatsMenu(this)); break;
        case OPTIONS: layout.setLayout(new OptionsMenu(this)); break;
        case ABOUT: layout.setLayout(new AboutMenu(this)); break;
        default:
            if(GlobalConstants.DEBUG) Log.wtf(TAG, "Undefined Menu ID");
            throw new RuntimeException("Undefined Menu ID");
        }
    }
    
    /**
     * Make this menu "first" in history
     */
    public void resetHistory() {
        history.clear();
    }
    
    /**
     * Refresh current layout
     */
    public void refresh() {
        layout.refresh();
    }
    
    /*
     * (non-Javadoc)
     * @see android.app.Activity#onBackPressed()
     */
    @Override
    public void onBackPressed() {
        if(history.size() > 0) {
            showMenu(history.get(history.size() - 1), false);
            history.remove(history.size() - 1);
        } else super.onBackPressed();
    }
}

Java Source Code List