Android Open Source - MyJournal Edit Entry Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.shane87.myjournal;
/* w  w  w .  j  a  v  a2 s.co m*/
import java.util.Date;

import android.support.v7.app.ActionBarActivity;
import android.text.format.DateFormat;
import android.text.format.Time;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class EditEntryActivity extends ActionBarActivity {
  
  //Global var for holding the id of the entry we are working with
  //Defaults to 0 for a new entry
  int CUR_ENTRY_ID = 0;
  //Date format object to format dates
  java.text.DateFormat dFormat;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_edit_entry);
    
    //Ensure that the app icon in the action bar works as an "Up" button
    getActionBar().setDisplayHomeAsUpEnabled(true);
    //Get a format object to format the date string for the date text view
    new DateFormat();
    dFormat = DateFormat.getMediumDateFormat(getApplicationContext());
    
    //Get the intent from the main activity, and pull the extra data
    //passed from main activity; default to 0 if no extra
    Intent intent = getIntent();
    int id = intent.getIntExtra(MainActivity.getEntryIdIntentTag(), 0);
    
    //Check to see if we are working with a new id (id == 0)
    if (id == 0)
    {
      //New entry, so change activity title to reflect that
      setTitle(R.string.editEntryActivityNew);
      //Get the current date and format it using the date format
      //instantiated in onCreate()
      String date = dFormat.format(new Date());
      
      //Get the text view for the date
      TextView dTextView = (TextView) findViewById(R.id.dateTextView);
      //Put the appropriately formatted date string into the date text view
      dTextView.setText(date);
      
    }
    //In this case we are working with an existing entry
    else
      //TO-DO: Implement existing entry editing
      CUR_ENTRY_ID = id;
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.edit_entry, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }
  
  //Method for saving the entry when save entry is pressed
  public void saveEntry(View view)
  {
    //Pointers to the text objects holding the text for the entry
    EditText titleEditText = (EditText) findViewById(R.id.entryTitleEditText);
    EditText entryEditText = (EditText) findViewById(R.id.editEntryEditText);
    TextView dateTextView = (TextView) findViewById(R.id.dateTextView);
    //Time object for getting current time.
    //NOTICE: may be moving to using only time objects, instead of a date object
    //        and a time object, as time objects also hold dates
    Time time = new Time();
    
    //Check to see if the title and/or entry fields are blank
    //If so, pop a toast error
    if (titleEditText.getText().toString().isEmpty())
    {
      Toast toast = Toast.makeText(getApplicationContext(), R.string.entryEmptyTitleError, Toast.LENGTH_SHORT);
      toast.show();
    }
    else if (entryEditText.getText().toString().isEmpty())
    {
      Toast toast = Toast.makeText(getApplicationContext(), R.string.entryEmptyEntryError, Toast.LENGTH_SHORT);
      toast.show();
    }
    //If both fields are NOT empty, continue with saving the data.
    else
    {
      //Get the current time
      time.setToNow();
      //Create a new entry using the Journal object from the main activity
      MainActivity.getJournal().createNewEntry(
          //Title string from title text box
          titleEditText.getText().toString(),
          //Entry string
          entryEditText.getText().toString(),
          //Date string
          dateTextView.getText().toString(),
          //Get the time portion of the string returned by the time object
          time.toString().substring(9));
      
      setResult(MainActivity.getEntryCreatedResult());
      this.finish();
    }
  }
}

Java Source Code List

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