Android Open Source - deborsi-notes Item List Manager

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License

The source code is released under:

GNU General Public License

Java Source Code

package ca.ualberta.cs.deborsi_notes;
/*from   w  w w .  java2  s .c o  m*/
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import android.content.Context;
import android.util.SparseBooleanArray;

// Manages saving, loading and check box updates 

public class ItemListManager {
  
  // lazy singleton
  private ItemList List;
  public ItemList getItemList(){
    if(List == null){
      List = new ItemList();
    }
    return List;
  }
  
  //------------------------------------------------------------------------------------------
  // Code for the function updateChecked() has been taken from :
  // 
  // Turotial : Deleting Selected Items From ListView in Android
  // url : http://wptrafficanalyzer.in/blog/deleting-selected-items-from-listview-in-android/
  // Author : George Mathew
  // Website : http://wptrafficanalyzer.in/blog
  //------------------------------------------------------------------------------------------
  
  public void updateChecked(SparseBooleanArray checkedItemPositions) {
    
      for(int i = (checkedItemPositions.size()) - 1; i >= 0; i--){
    if(checkedItemPositions.get(i)){
            setStatus(i, true);
          }
          else {
            setStatus(i, false);
          }
      }
  }
  
  public void setStatus(int i, boolean status) {
    List.getItemIndex(i).setStatus(status);
  }
  
  //-----------------------------------------------------------------------------------------------------------------------------------------
  // Code for the functions loadApp() and saveApp() have been taken from :
  // 
  // Repository : LonelyTwitterGson 
  // url : https://github.com/deborsi/LonelyTwitterGson/blob/master/LonelyTwitter/src/ca/ualberta/cs/lonelytwitter/data/FileDataManager.java
  // Author : dfserrano
  // Website : https://github.com/dfserrano
  //-----------------------------------------------------------------------------------------------------------------------------------------
  
  public void loadApp(String FILENAME, Context context) throws ClassNotFoundException {
    ItemList lts = new ItemList();
    try {
      FileInputStream fis = context.openFileInput(FILENAME);
      ObjectInputStream ois = new ObjectInputStream(fis);
      lts = (ItemList) ois.readObject();        
    } catch (IOException e) {
          e.printStackTrace();
    } 
    List = lts;
  }

  public void saveApp(String FILENAME, Context context) {
    try {
      FileOutputStream fos = context.openFileOutput(FILENAME, 0);
      ObjectOutputStream oos = new ObjectOutputStream(fos);
      oos.writeObject(List);
      fos.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

Java Source Code List

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