Android Open Source - notepad Note Manager

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License

The source code is released under:

MIT License

Java Source Code

package com.mick88.notepad.notes;
// w  ww .j  av  a 2  s . c  o  m
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import com.mick88.notepad.NotepadApplication;

import android.content.Context;

/**
 * Contains and manages list of notes
 * @author Michal
 *
 */
public class NoteManager
{
  Context context=null;
  ArrayList<Note> notes = new ArrayList<Note>();
  
  public NoteManager(Context context) 
  {
    this.context = context;
  }
  
  
  public boolean isEmpty()
  {
    return notes.isEmpty();
  }
  
  public int getNumNotes()
  {
    return notes.size();
  }
  
  public boolean getNoteByText(String t)
  {
    for (Note n : notes) if (n.findChanges(t) == false)
    {
      return true;
    }
    return false;
  }
  
  public boolean getNoteByText(CharSequence text)
  {
    return getNoteByText(text.toString());
  }
  
  public List<Note> getAllNotes()
  {
    return notes;
  }
  
  public List<String> getNotes()
  {
    ArrayList<String> strings = new ArrayList<String>(notes.size());
    for (Note note : notes) strings.add(note.toString());
    return strings;
  }
  
  public Note getNoteById(int id)
  {
    return notes.get(id);
  }
  
  public Note getNoteById(long id)
  {
    return getNoteById((int)id);
  }
  
  /**
   * Deletes note file and removes it from list
   * @param note
   */
  public void deleteNote(Note note)
  {
    note.delete(context);
    notes.remove(note);
  }
  
  public void deleteNote(int index)
  {
    notes.get(index).delete(context);
    notes.remove(index);
  }
  
  public void addNote(Note note)
  {
    if (note == null || notes.contains(note)) return;
    note.noteManager = this;
    notes.add(note);  
    try
    {
      note.saveToFile(context);
    } catch (IOException e)
    {
      e.printStackTrace();
    }
  }
  
  private String generateFilename(int id)
  {
    String name = String.format(Locale.getDefault(), "Note_%d.txt", id);
    if (context.getFileStreamPath(name).exists() == true) return generateFilename(id+1);
    else return name;
  }
  
  String generateFilename()
  {
    return generateFilename(0);
  }
  
  public Note newFromClipboard(NotepadApplication application)
  {
    Note note = Note.newFromClipboard(this, application);
    if (note == null) return null;
    addNote(note);
    return note;
  }
  
  public void loadNotes()
  {
    String[] files = context.fileList();
    notes.clear();
    for (String fname:files)
    {
      try
      {
        notes.add(Note.newFromFile(this, context, fname));
      } catch (IOException e)
      {
        e.printStackTrace();
      }
    }
    
  }
}

Java Source Code List

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