Android Open Source - ToDoList Item List

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License

The source code is released under:

GNU General Public License

Java Source Code

package ca.ualberta.cs.todolist;
/*from   w  w w  . j ava  2s.  c  o m*/
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;

public class ItemList implements Serializable{

  /**
   * ItemList serialization ID
   */
  private static final long serialVersionUID = -6647489627875174030L;
  protected ArrayList<Item> ItemList;
  protected ArrayList<Item> ArchivedItemList;
  protected transient ArrayList<Listener> listeners = null ;
  
  public ItemList() {
    ItemList = new ArrayList<Item>();  
    ArchivedItemList = new ArrayList<Item>();
    listeners = new ArrayList<Listener>();
  }
  
  private ArrayList<Listener> getListeners() {
    if (listeners == null ) {
      listeners = new ArrayList<Listener>();
    }
    return listeners;
  }
  
  public Collection<Item> getItems() {
    return ItemList;  
  }
  
  public Collection<Item> getArchivedItems() {
    return ArchivedItemList;  
  }
  
  public void addItem(Item testItem) {
    ItemList.add(testItem);
    NotifyListener();
  }
  
  public void addArchivedItem(Item testItem) {
    ArchivedItemList.add(testItem);
    testItem.box = false;
    NotifyListener();
  }
  
  public void removeItem(Item testItem) {
    ItemList.remove(testItem);
    NotifyListener();
  }
  
  public void removeArchivedItem(Item testItem) {
    ArchivedItemList.remove(testItem);
    NotifyListener();
  }
  
  public void addListener(Listener l) {
    getListeners().add(l);
  }
  
  public void removeListener(Listener l) {
    getListeners().remove(l);
  }
  
  public void changeStatus (Item testItem){  
    if (testItem.getStatus().equals("TODO")){
      testItem.itemStatus = "DONE"; 
      testItem.image = R.drawable.checked;
    }
    else{
      testItem.itemStatus = "TODO";
      testItem.image = R.drawable.unchecked;
    }
    testItem.box = false;
    NotifyListener();
  }

  public void selectAll(Item testitem) {
    testitem.box = true;
    NotifyListener();
  }

  public void selectNone(Item testitem) {
    testitem.box = false;
    NotifyListener();
  }

  public void selectInverse(Item testitem) {
    if(testitem.box){
      testitem.box = false;
    }
    else{
      testitem.box = true;
    }
    NotifyListener();
  }

  public int getTotalArchivedNum() {
    return ArchivedItemList.size();
  }
  
  //get the following code from
  //https://github.com/abramhindle/student-picker/blob/master/src/ca/softwareprocess/studentpicker/StudentList.java
  public void NotifyListener() {
    for (Listener listener : getListeners()) {
      listener.update();
    }  
  }
}

Java Source Code List

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