Android Open Source - notepad Note Edit Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.mick88.notepad.note_edit;
//from  w ww  .  j a v a 2 s .c  o  m
import android.annotation.TargetApi;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.ActionBarActivity;
import android.text.TextUtils;
import android.view.Menu;
import android.view.MenuItem;
import android.view.ViewConfiguration;
import android.widget.EditText;
import android.widget.Toast;

import com.mick88.notepad.ConfirmationDialogFragment;
import com.mick88.notepad.NotepadApplication;
import com.mick88.notepad.R;
import com.mick88.notepad.notes.Note;
import com.mick88.notepad.notes.NoteManager;

import java.lang.reflect.Field;

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class NoteEditActivity extends ActionBarActivity implements ConfirmationDialogFragment.ConfirmationDialogListener
{
  NotepadApplication application;
  Note currentNote;
  NoteManager noteManager;
  EditText textEdit;
  
  /*Dialog IDs*/
  private final int DIALOG_DELETE    = 1;
  private final int DIALOG_RESTORE  = 2;
  
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.note_edit);
    application = (NotepadApplication) this.getApplication();
    noteManager = application.getNoteManager();
    
    int id = getIntent().getExtras().getInt("noteId");
    currentNote = noteManager.getNoteById(id);

    textEdit = (EditText) findViewById(R.id.editText1);    
    if (currentNote == null)
    {
      finish();
      return;
    }
    String s = currentNote.getText();
    textEdit.setText(s);
    moveTextCaret();
    
    try
    {
      setupActionBar();
    } 
    catch (Exception e)
    {
      e.printStackTrace();
    }
  }
  
  void setupActionBar()
  {
        android.support.v7.app.ActionBar actionBar = getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);
  }
  
  
  @Override
  public void onPause()
  {
    saveCurrentNote();
    super.onPause();    
  }
  
  @Override
  protected void onResume()
  {
    super.onResume();
  }
  
  @Deprecated
  void showOverflowButton()
  {
    try
    {
      ViewConfiguration config = ViewConfiguration.get(this);
      Field menuKeyField = ViewConfiguration.class.getDeclaredField("sHasPermanentMenuKey");
      if (menuKeyField != null)
      {
        menuKeyField.setAccessible(true);
        menuKeyField.setBoolean(config, false);
      }      
    }
    catch (Exception e)
    {
        
    }
  }
  
  void moveTextCaret()
  {
    textEdit.setSelection(textEdit.getText().toString().length());
  }
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu)
  {
    getMenuInflater().inflate(R.menu.note_edit_menu, menu);
    return true;
  }
  
  @Override
  public void onBackPressed()
  {
    saveOrDelete();
    super.onBackPressed();
  }

    @Override
  public boolean onOptionsItemSelected(MenuItem item)
  {
    switch(item.getItemId())
    {
      case android.R.id.home:
          onBackPressed();
        break;
      case R.id.saveNote:
        saveCurrentNote();
        break;
      case R.id.deleteItem:
        ConfirmationDialogFragment dialog = ConfirmationDialogFragment.newInstance(this, getString(R.string.dialogDeleteNote), DIALOG_DELETE);
        dialog.show(getSupportFragmentManager(), "delete");
        break;
      case R.id.revertChanges:
        ConfirmationDialogFragment d = ConfirmationDialogFragment.newInstance(this, getString(R.string.dialogRevertChanges), DIALOG_RESTORE);
        d.show(getSupportFragmentManager(), "restore");
        break;
      case R.id.shareNote:
        saveCurrentNote();
        currentNote.share(this);
        break;
      default:
        return false;
    }
    return true;  
  }
  
  void saveOrDelete()
  {
    
    if (TextUtils.isEmpty(textEdit.getText())) 
    {
      deleteCurrentNote();
    }
    else saveCurrentNote();
  }
  
  void deleteCurrentNote()
  {
    noteManager.deleteNote(currentNote);
    currentNote = null;
    Toast.makeText(getApplicationContext(), getString(R.string.toastNoteDeleted), Toast.LENGTH_SHORT).show();
  }
  
  void refreshNote()
  {
    /*Reverts any changes*/
    textEdit.setText(currentNote.getText());
    moveTextCaret();
  }

  private void saveCurrentNote()
  {
    try
    {
      String s = textEdit.getText().toString();    
      if (currentNote.findChanges(s) == false)
      {
        return;
      }
      currentNote.setText(s);
      currentNote.saveToFile(getApplicationContext());
      Toast.makeText(getApplicationContext(), getString(R.string.toastNoteSaved), Toast.LENGTH_SHORT).show();
    } 
    catch (Exception e)
    {
      e.printStackTrace();
    }
    
  }

  public void onYesClicked(DialogFragment dialog, Bundle bundle)
  {
    switch (bundle.getInt("dialogId"))
    {
      case DIALOG_DELETE:
        deleteCurrentNote();
        this.setResult(RESULT_OK);
        finish();
        break;
        
      case DIALOG_RESTORE:
        refreshNote();
        break;
    }
  }

  public void onNoClicked(DialogFragment dialog, Bundle bundle)
  {
  }
}

Java Source Code List

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