Android Open Source - Android-CalendarView Calendar Wrapper

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License

The source code is released under:

Copyright (c) 2011 Jason Kostempski, http://www.jasonkostempski.com/ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (...

Java Source Code

package com.jasonkostempski.android.calendar;
// w  ww . j a  v  a  2 s .  com
import java.util.Calendar;
import android.text.format.DateFormat;
import android.text.format.DateUtils;

public class CalendarWrapper {
  public interface OnDateChangedListener {
    public void onDateChanged(CalendarWrapper sc);
  }

  public CalendarWrapper() {
    _calendar = Calendar.getInstance();
    
    _shortDayNames = new String[_calendar.getActualMaximum(Calendar.DAY_OF_WEEK)];
    _shortMonthNames = new String[_calendar.getActualMaximum(Calendar.MONTH) + 1]; // Months are 0-based so size is Max + 1
    
    for (int i = 0; i < _shortDayNames.length; i++) {
      _shortDayNames[i] = DateUtils.getDayOfWeekString(i + 1, DateUtils.LENGTH_SHORT);
    }
    
    for (int i = 0; i < _shortMonthNames.length; i++) {
      _shortMonthNames[i] = DateUtils.getMonthString(i, DateUtils.LENGTH_SHORT);
    }
  }

  public int getYear() {
    return _calendar.get(Calendar.YEAR);
  }

  public int getMonth() {
    return _calendar.get(Calendar.MONTH);
  }
  
  public int getDayOfWeek() {
    return _calendar.get(Calendar.DAY_OF_WEEK);
  }
  
  public int getDay() {
    return _calendar.get(Calendar.DAY_OF_MONTH);
  }

  public void setYear(int value) {
    _calendar.set(Calendar.YEAR, value);
    invokeDateChangedListener();
  }
  
  public void setYearAndMonth(int year, int month) {
    _calendar.set(Calendar.YEAR, year);
    _calendar.set(Calendar.MONTH, month);
    invokeDateChangedListener();
  }

  public void setMonth(int value) {
    _calendar.set(Calendar.MONTH, value);
    invokeDateChangedListener();
  }

  public void setDay(int value) {
    _calendar.set(Calendar.DAY_OF_MONTH, value);
    invokeDateChangedListener();
  }
  
  public void addYear(int value) {
    if(value != 0) {
      _calendar.add(Calendar.YEAR, value);
      invokeDateChangedListener();
    }
  }

  public void addMonth(int value) {
    if(value != 0) {
      _calendar.add(Calendar.MONTH, value);
      invokeDateChangedListener();
    }
  }
  
  public void addMonthSetDay(int monthAdd, int day) {
    _calendar.add(Calendar.MONTH, monthAdd);
    _calendar.set(Calendar.DAY_OF_MONTH, day);
    
    invokeDateChangedListener();
  }

  public void addDay(int value) {
    if(value != 0) {
      _calendar.add(Calendar.DAY_OF_MONTH, value);
      invokeDateChangedListener();
    }
  }

  public String[] getShortDayNames() {
    return _shortDayNames;
  }

  public String[] getShortMonthNames() {
    return _shortMonthNames;
  }

  public int[] get7x6DayArray() {
    _visibleStartDate = null;
    _visibleEndDate = null;
    
    int[] days = new int[42];

    Calendar tempCal = (Calendar) _calendar.clone();
    tempCal.set(Calendar.DAY_OF_MONTH, 1);
    
    int dayOfWeekOn1st = tempCal.get(Calendar.DAY_OF_WEEK);
    int maxDay = tempCal.getActualMaximum(Calendar.DAY_OF_MONTH);
    int previousMonthCount = dayOfWeekOn1st - 1;
    int index = 0;

    if (previousMonthCount > 0) {
      tempCal.set(Calendar.DAY_OF_MONTH, -1);
      
      int previousMonthMax = tempCal.getActualMaximum(Calendar.DAY_OF_MONTH);

      for (int i = previousMonthCount; i > 0; i--) {
        int day = previousMonthMax - i + 1; 
        
        if(i == previousMonthCount) {
          _visibleStartDate = (Calendar)tempCal.clone();
          _visibleStartDate.set(Calendar.DAY_OF_MONTH, day);
        }
        
        days[index] = day;
        index++;
      }
    }

    for (int i = 0; i < maxDay; i++) {
      if(i == 0 && _visibleStartDate == null)
        _visibleStartDate = (Calendar)tempCal.clone();
      
      days[index] = (i + 1);
      index++;
    }

    int nextMonthDay = 1;

    for (int i = index; i < days.length; i++) {
      if(i == index)
        
      
      days[index] = nextMonthDay;
      nextMonthDay++;
      index++;
    }
    
    _visibleEndDate = (Calendar) _calendar.clone();
    _visibleEndDate.add(Calendar.MONTH, 1);
    _visibleEndDate.set(Calendar.DAY_OF_MONTH, days[41]);
    
    return days;
  }
  
  public Calendar getSelectedDay() {
    return (Calendar)_calendar.clone();
  }
  
  public Calendar getVisibleStartDate() {
    return (Calendar) _visibleStartDate.clone();
  }
  
  public Calendar getVisibleEndDate() {
    return (Calendar) _visibleEndDate.clone();
  }

  public void setOnDateChangedListener(OnDateChangedListener l) {
    _onDateChangedListener = l;
  }
  
  public String toString(CharSequence format) {
    return DateFormat.format(format, _calendar).toString();
  }

  private void invokeDateChangedListener() {
    if (_onDateChangedListener != null)
      _onDateChangedListener.onDateChanged(this);
  }

  private Calendar _calendar;
  private String[] _shortDayNames;
  private String[] _shortMonthNames;
  private OnDateChangedListener _onDateChangedListener;
  private Calendar _visibleStartDate;
  private Calendar _visibleEndDate;
}

Java Source Code List

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