Android Open Source - SecNote Sec Note Editor Activity

From Project

Back to project page SecNote.
License

The source code is released under:
GNU General Public License
If you think the Android project SecNote listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package org.jdamico.secnote;
//from   ww  w.ja v  a  2 s . co m
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.util.List;

import org.jdamico.secnote.commons.AppMessages;
import org.jdamico.secnote.commons.Constants;
import org.jdamico.secnote.commons.SecNoteException;
import org.jdamico.secnote.commons.StaticObj;
import org.jdamico.secnote.commons.Utils;
import org.jdamico.secnote.crypto.CryptoUtils;
import org.jdamico.secnote.dataobjects.NoteItemObj;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class SecNoteEditorActivity extends Activity {
  
  TextView note_title = null;
  TextView note_content = null;
  Button note_save_button = null;
  Button note_del_button = null;
  String key = null;
  Context currentCtx = null;
  String filename = null;
  AlertDialog.Builder builder = null;
  DialogInterface.OnClickListener dialogClickListener = null;


  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_secnote_editor);
    ((InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE)).toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
    
    try {
      key = CryptoUtils.getInstance().retrieveKeyFromCache(getApplicationContext());
    } catch (SecNoteException e) {
      Toast.makeText(getApplicationContext(), AppMessages.getInstance().getMessage(e.getMessage()), Toast.LENGTH_LONG).show();
    }
    note_save_button = (Button) findViewById(R.id.noteSaveButton);
    note_del_button = (Button) findViewById(R.id.noteDelButton);
    note_title = (TextView) findViewById(R.id.noteTitleEditText);
    note_content = (TextView) findViewById(R.id.noteContentEditText);
    
    
    if(StaticObj.NOTE_MD5 != null){
      filename = StaticObj.NOTE_MD5;
      note_del_button.setEnabled(true);
      
      getDataFromExistentNote();
      
    }else{
      note_del_button.setEnabled(false);
    }
    
    note_save_button.setText(AppMessages.getInstance().getMessage("GLOBAL.note_save_button"));
    note_del_button.setText(AppMessages.getInstance().getMessage("GLOBAL.note_del_button"));
    
    
    
    currentCtx = this;
    
    
    dialogClickListener = new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            switch (which){
            case DialogInterface.BUTTON_POSITIVE:
              String notesDir = Utils.getInstance().getAppContentDir();
                File fDel = new File(notesDir+StaticObj.NOTE_MD5+"."+Constants.APP_NAME);
                fDel.delete();
                Intent intent = new Intent(currentCtx, SecNoteListActivity.class);
          intent.putExtra("isConfigExistent", true);
          startActivityForResult(intent, 0);
                break;

            case DialogInterface.BUTTON_NEGATIVE:
                break;
            }
        }
    };
    builder = new AlertDialog.Builder(this);
    builder.setMessage(AppMessages.getInstance().getMessage("GLOBAL.confirm_del")).setPositiveButton(AppMessages.getInstance().getMessage("GLOBAL.yes"), dialogClickListener).setNegativeButton(AppMessages.getInstance().getMessage("GLOBAL.no"), dialogClickListener);
    
    note_del_button.setOnClickListener(new OnClickListener() {
      
      @Override
      public void onClick(View v) {
        
        builder.show();
        InputMethodManager inputManager = (InputMethodManager) v.getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 
        inputManager.hideSoftInputFromWindow(v.getApplicationWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS); 
      }
    });
    
    note_save_button.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        
        
        try {
           
          
          String input = (note_title.getText().toString() + note_content.getText().toString());
          if(filename == null) filename = Utils.getInstance().getMd5FromString(input+String.valueOf(new Date().getTime()));
          //Toast.makeText(getApplicationContext(), filename, Toast.LENGTH_LONG).show();
          
          byte[] plainContent = note_content.getText().toString().getBytes();
          byte[] cipherContent = CryptoUtils.getInstance().enc(getApplicationContext(), key, plainContent, Utils.getInstance().getConfigFile(getApplicationContext()).getEncAlgo());
          
          String hexCipherContent = Utils.getInstance().byteArrayToHexString(cipherContent);
          
          String ts = Utils.getInstance().getCurrentDateTimeFormated("dd/MMM/yyyy HH:mm:ss");
          
          //Toast.makeText(getApplicationContext(), ts, Toast.LENGTH_LONG).show();
          
          
          NoteItemObj note = new NoteItemObj(note_title.getText().toString(), filename, hexCipherContent, ts);
          String noteXml = Utils.getInstance().convertNoteObj2XmlStr(note);
          
          String notesDir = Utils.getInstance().getAppContentDir();
          Utils.getInstance().byteArrayToFile(noteXml.getBytes(), notesDir+filename+"."+Constants.APP_NAME);
          
          Toast.makeText(getApplicationContext(), AppMessages.getInstance().getMessage("GLOBAL.note_saved_success"), Toast.LENGTH_LONG).show();
          
        } catch (SecNoteException e) {
          Toast.makeText(getApplicationContext(), AppMessages.getInstance().getMessage(e.getMessage()), Toast.LENGTH_LONG).show();
        } catch (UnsupportedEncodingException e) {
          Toast.makeText(getApplicationContext(), AppMessages.getInstance().getMessage(e.getMessage()), Toast.LENGTH_LONG).show();
        }
        
        
        
        
        

      }
    });
    
    

  }

  private void getDataFromExistentNote() {
    String dir = Utils.getInstance().getAppContentDir();
    String file = dir+StaticObj.NOTE_MD5+"."+Constants.APP_NAME;

    try {
      List<NoteItemObj> noteObj = Utils.getInstance().convertXmlStrNoteLst(Utils.getInstance().getStringFromFile(file));
      
      byte[] cipherContent = Utils.getInstance().hexStringToByteArray(noteObj.get(0).getNoteContent());
      byte[] plainContent = CryptoUtils.getInstance().dec(this, CryptoUtils.getInstance().retrieveKeyFromCache(this), cipherContent, Utils.getInstance().getConfigFile(this).getEncAlgo());
      
      note_title.setText(new String(noteObj.get(0).getNoteTitle()));
      note_content.setText(new String(plainContent));
      
      
    } catch (SecNoteException e) {
      e.printStackTrace();
    }
    
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.sec_note_editor, menu);
    return true;
  }
  
  @Override
  public void onBackPressed() {
    Intent intent = new Intent(currentCtx, SecNoteListActivity.class);
    intent.putExtra("isConfigExistent", true);
    startActivityForResult(intent, 0);
  }

}
Java Source Code List
