Android Open Source - Operation-Valkyrie Layout Manager

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License

The source code is released under:

Terms and conditions Preamble: This Agreement, signed on Jun 10, 2012 [hereinafter: Effective Date] governs the relationship between the Enduser, a private person, (hereinafter: Licensee) and Paul N...

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Java Source Code

/**
 * /*from   w w  w.  j av  a 2 s  .  com*/
 * COPYRIGHT: Paul Neuhold, Laurenz Theuerkauf, Alexander Ritz, Jakob Schweighofer, Milo Tischler
 * ? Milo Tischler, Jakob Schweighofer, Alexander Ritz, Paul Neuhold, Laurenz Theuerkauf
 * 
 */

package valkyrie.ui;

import java.util.ArrayList;

import valkyrie.filter.IFilter;
import android.app.Activity;
import android.content.SharedPreferences;
import android.widget.TableLayout;

/**
 * Singleton Class. Used to manage interactions with UI elements.
 */
public class LayoutManager {

  /**
   * Stores the currently active Filter.
   */
  private IFilter activeFilter = null;

  /**
   * Instance Variable. Used for Singleton.
   */
  private static LayoutManager instance = null;

  /**
   * Contains the mainActivity of the Program.
   */
  private Activity mainActivity = null;

  /**
   * Cotntains all Components that can be updated whe Filter is changed.
   */
  private ArrayList<IUpdateableUI> registeredComponents = null;

  /**
   * Default Singleton Constructor.
   */
  private LayoutManager() {
    this.registeredComponents = new ArrayList<IUpdateableUI>();
  }

  /**
   * Returns the only instance of the LayoutManager
   * 
   * @return LayoutManager the only instance of the LayoutManager
   */
  public static LayoutManager getInstance() {

    if (instance == null) {
      instance = new LayoutManager();
    }

    return instance;
  }

  /**
   * Registers the main layout.
   * 
   * @param mainView
   *            the main Activity object
   */
  public void setMainActivity(Activity mainActivity) {
    this.mainActivity = mainActivity;
  }

  /**
   * Force all registered (updateable Components) to update.
   * 
   * @param filterObject
   *            A FilterObject which is passed by the FilterManager
   */
  public void notifyUI(IFilter filterObject) {
    this.activeFilter = filterObject;
    TableLayout uiElements = filterObject.getUIElements(mainActivity);

    for (IUpdateableUI registeredComponent : this.registeredComponents) {
      registeredComponent.redrawUI(uiElements);
    }
  }

  /**
   * All Updateable Components used in the main XML File, will register this way when they are created.
   * 
   * @param component
   *            An UpdateableRelativeLayout element
   */
  public void registerUpdateableComponent(UpdateableRelativeLayout component) {
    this.registeredComponents.add(component);
  }

  /**
   * Removes a registered Updateable Component
   * 
   * @param component
   *            An UpdateableRelativeLayout element
   */
  public void removeUpdateableComponent(UpdateableRelativeLayout component) {
    this.registeredComponents.remove(component);
  }

  /**
   * @deprecated Was used to return the SharedPreferences Object of the active Filter.
   * @return SharedPreferences the SharedPreferences Object of the current Filter.
   */
  public SharedPreferences getSharedPreferencesOfCurrentFilter() {
    return this.mainActivity.getSharedPreferences(this.activeFilter.getName(), 0);
  }

  /**
   * @deprecated Was used to return the SharedPreferences Object of the Filter with the given name.
   * @return SharedPreferences the SharedPreferences Object of the Filter with the given name.
   */
  public SharedPreferences getSharedPreferencesOfFilter(String filterName) {
    return this.mainActivity.getSharedPreferences(filterName, 0);
  }

}

Java Source Code List