Android Open Source - Timetable Event Edit Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.timetable.android.activities;
/*from  w  w w  . j  a va2 s  .co m*/
import java.text.ParseException;
import java.util.Calendar;
import java.util.Date;

import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;

import com.timetable.android.Event;
import com.timetable.android.EventController;
import com.timetable.android.EventController.OnEventDeletedListener;
import com.timetable.android.EventController.OnEventUpdatedListener;
import com.timetable.android.EventPeriod;
import com.timetable.android.R;
import com.timetable.android.TimetableDatabase;
import com.timetable.android.Logger;

/*
 * Activity provides user interface to edit oldEvent
 * Should be started with extra field 'event_id' that contains id of oldEvent,
 * that should be edited and field 'date', that contains editDate, when oldEvent was edited.
 */
public class EventEditActivity extends EventAddActivity implements OnEventUpdatedListener, OnEventDeletedListener {

  public static final String EXTRA_EVENT_ID = "event_id";
  
  //oldEvent that should be edited
  private Event oldEvent;
  
  //new data
  private Event editedEvent;
  
  //editDate when oldEvent is edited
  private Date editDate;
  
  private TimetableDatabase db; 
  
  @Override 
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
      Bundle extras = getIntent().getExtras();
      int eventId = extras.getInt(EXTRA_EVENT_ID);
      db = TimetableDatabase.getInstance(this);
      oldEvent = db.searchEventById(eventId);
      if (oldEvent == null) {
        Logger.error("EventEditActivity.onCreate: oldEvent not found. " + Integer.toString(eventId));
        finish();
        return;
      }
      getSupportActionBar().setTitle(getResources().getString(R.string.actionbar_edit_event));
      
      try {
        editDate = INIT_DATE_FORMAT.parse(extras.getString(EXTRA_DATE));
      } catch(ParseException e) {
        Logger.error("EventEditActivity.onCreate: could not parse date of editing. " + e.getMessage());
        finish();
        return;
      }
      
      setEvent(oldEvent);
      showEventPeriod();
      showEventAlarm();
      eventDateVal.removeTextChangedListener(eventAddTextWatcher);
      eventDateVal.addTextChangedListener(new TextWatcher() {
        
        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
        }
        
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,
            int after) {
        }
        
        @Override
        public void afterTextChanged(Editable s) {
          try {
            String dateString = s.toString();
            Calendar date = Calendar.getInstance();
            date.setTime(dateFormat.parse(dateString));
            int weekDay = date.get(Calendar.DAY_OF_WEEK) - 1;
            for (int i = EventPeriod.SUNDAY; i <= EventPeriod.SATURDAY; i++) {
              if (!eventPeriodWeekDayCheckBoxes[i].isEnabled()) {
                eventPeriodWeekDayCheckBoxes[i].setEnabled(true);
                eventPeriodWeekDayCheckBoxes[i].setChecked(oldEvent.getPeriod().isWeekOccurrence(i));
              }
            eventPeriodWeekDayCheckBoxes[weekDay].setEnabled(false);
            eventPeriodWeekDayCheckBoxes[weekDay].setChecked(true);
            }
          } catch (ParseException e) {
            return;
          }
        }
      });
      
      eventDateVal.setText(dateFormat.format(editDate));
      
    Logger.log("EventEditActivity successfully created.");
  }
  
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_event_edit, menu);
    return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle item selection
      switch (item.getItemId()) {
          case R.id.action_save_event:
            Logger.log("EventEditActivity: try to save oldEvent.");
            saveEvent();
            return true;
          case R.id.action_delete_event:
            Logger.log("EventEditActivity: try to delete oldEvent.");
            deleteEvent();
            return true;
          default:
              return super.onOptionsItemSelected(item);
      }
  }

  @Override 
  public boolean saveEvent()  {
    editedEvent = getEvent();
    if (editedEvent == null) {
      return false;
    }
    
    EventController eventController = new EventController(this);
    eventController.setOnEventUpdatedListener(this);
    eventController.updateEvent(editedEvent, oldEvent, editDate);
    return true;
  }
  
  public void deleteEvent() {
    EventController eventController = new EventController(this);
    eventController.setOnEventDeletedListener(this);
    eventController.deleteEvent(oldEvent, editDate);
  }
  
  @Override
  public void onEventUpdated(Event updatedEvent) {
    finish();
  }


  @Override
  public void onEventDeleted() {
    finish();
  }
  
}

Java Source Code List

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