Android Open Source - Android-CalendarView Calendar View

• Back to Timer/clock  ↑

From Project

Back to project page Android-CalendarView.

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 w  w .j av  a  2 s  .c o m*/
import java.util.Calendar;
import com.jasonkostempski.android.calendar.R;
import com.jasonkostempski.android.calendar.CalendarWrapper.OnDateChangedListener;
import android.content.Context;
import android.graphics.Color;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;

public class CalendarView extends LinearLayout {
  public CalendarView(Context context) {
    super(context);
    init(context);
  }

  public CalendarView(Context context, AttributeSet attrs) {
    super(context, attrs);
    init(context);
  }

  public interface OnMonthChangedListener {
    public void onMonthChanged(CalendarView view);
  }

  public void setOnMonthChangedListener(OnMonthChangedListener l) {
    _onMonthChangedListener = l;
  }

  public interface OnSelectedDayChangedListener {
    public void onSelectedDayChanged(CalendarView view);
  }

  public void setOnSelectedDayChangedListener(OnSelectedDayChangedListener l) {
    _onSelectedDayChangedListener = l;
  }

  public Calendar getVisibleStartDate() {
    return _calendar.getVisibleStartDate();
  }

  public Calendar getVisibleEndDate() {
    return _calendar.getVisibleEndDate();
  }

  public Calendar getSelectedDay() {
    return _calendar.getSelectedDay();
  }

  public void setDaysWithEvents(CalendarDayMarker[] markers) {
    int hits = 0;
    int dayItemsInGrid = 42;
    int row = 1; // Skip weekday header row
    int col = 0;
    Calendar tempCal = _calendar.getVisibleStartDate();

    for(int i = 0; i < dayItemsInGrid; i++) {
      if(hits == markers.length) //If we've already marked as many days as we have markers
        break;
      
      TableRow tr = (TableRow) _days.getChildAt(row);
      TextView tv = (TextView) tr.getChildAt(col);
      int[] tag = (int[]) tv.getTag();
      int day = tag[1];
      
      for (int j = 0; j < markers.length; j++) {
        CalendarDayMarker m = markers[j];
        
        if (tempCal.get(Calendar.YEAR) == m.getYear() && tempCal.get(Calendar.MONTH) == m.getMonth() && day == m.getDay()) {
          tv.setBackgroundColor(m.getColor());
          hits++;
          break;
        }
      }
      
      tempCal.add(Calendar.DAY_OF_MONTH, 1);
      
      col++;

      if (col == 7) {
        col = 0;
        row++;
      }      
    }
  }

  public void setListViewItems(View[] views) {
    _events.removeAllViews();

    for (int i = 0; i < views.length; i++) {
      _events.addView(views[i]);
    }
  }

  private void init(Context context) {
    View v = LayoutInflater.from(context).inflate(R.layout.calendar, this, true);

    _calendar = new CalendarWrapper();
    _days = (TableLayout) v.findViewById(R.id.days);
    _months = (TableLayout) v.findViewById(R.id.months);
    _years = (TableLayout) v.findViewById(R.id.years);
    _up = (Button) v.findViewById(R.id.up);
    _prev = (Button) v.findViewById(R.id.previous);
    _next = (Button) v.findViewById(R.id.next);
    _events = (LinearLayout) v.findViewById(R.id.events);

    refreshCurrentDate();

    // Days Table
    String[] shortWeekDayNames = _calendar.getShortDayNames();

    for (int i = 0; i < 7; i++) { // Rows
      TableRow tr = (TableRow) _days.getChildAt(i);

      for (int j = 0; j < 7; j++) { // Columns
        Boolean header = i == 0; // First row is weekday headers
        TextView tv = (TextView) tr.getChildAt(j);

        if (header)
          tv.setText(shortWeekDayNames[j]);
        else
          tv.setOnClickListener(_dayClicked);
      }
    }

    refreshDayCells();

    // Months Table
    String[] shortMonthNames = _calendar.getShortMonthNames();
    int monthNameIndex = 0;

    for (int i = 0; i < 3; i++) { // Rows
      TableRow tr = (TableRow) _months.getChildAt(i);

      for (int j = 0; j < 4; j++) { // Columns
        TextView tv = (TextView) tr.getChildAt(j);
        tv.setOnClickListener(_monthClicked);
        tv.setText(shortMonthNames[monthNameIndex]);
        tv.setTag(monthNameIndex);

        monthNameIndex++;
      }
    }

    // Years Table
    for (int i = 0; i < 3; i++) { // Rows
      TableRow tr = (TableRow) _years.getChildAt(i);

      for (int j = 0; j < 4; j++) { // Columns
        TextView tv = (TextView) tr.getChildAt(j);
        tv.setOnClickListener(_yearClicked);
      }
    }

    // Listeners
    _calendar.setOnDateChangedListener(_dateChanged);
    _up.setOnClickListener(_upClicked);
    _prev.setOnClickListener(_incrementClicked);
    _next.setOnClickListener(_incrementClicked);

    setView(MONTH_VIEW);
  }

  private OnDateChangedListener _dateChanged = new OnDateChangedListener() {
    public void onDateChanged(CalendarWrapper sc) {
      Boolean monthChanged = _currentYear != sc.getYear() || _currentMonth != sc.getMonth();
      
      if (monthChanged) {
        refreshDayCells();
        invokeMonthChangedListener();
      }

      refreshCurrentDate();
      refreshUpText();
    }
  };

  private OnClickListener _incrementClicked = new OnClickListener() {
    public void onClick(View v) {
      int inc = (v == _next ? 1 : -1);

      if (_currentView == MONTH_VIEW)
        _calendar.addMonth(inc);
      else if (_currentView == DAY_VIEW) {
        _calendar.addDay(inc);
        invokeSelectedDayChangedListener();
      }
      else if (_currentView == YEAR_VIEW) {
        _currentYear += inc;
        refreshUpText();
      }
    }
  };

  private OnClickListener _dayClicked = new OnClickListener() {
    public void onClick(View v) {
      int[] tag = (int[]) v.getTag();
      _calendar.addMonthSetDay(tag[0], tag[1]);
      invokeSelectedDayChangedListener();
      setView(DAY_VIEW);
    }
  };

  private OnClickListener _monthClicked = new OnClickListener() {
    public void onClick(View v) {
      _calendar.setYearAndMonth(_currentYear, (Integer) v.getTag());
      setView(MONTH_VIEW);
    }
  };

  private OnClickListener _yearClicked = new OnClickListener() {
    public void onClick(View v) {
      _currentYear = (Integer) v.getTag();
      setView(YEAR_VIEW);
    }
  };

  private OnClickListener _upClicked = new OnClickListener() {
    public void onClick(View v) {
      setView(_currentView + 1);
    }
  };

  private void refreshDayCells() {
    int[] dayGrid = _calendar.get7x6DayArray();
    int monthAdd = -1;
    int row = 1; // Skip weekday header row
    int col = 0;

    for (int i = 0; i < dayGrid.length; i++) {
      int day = dayGrid[i];

      if (day == 1)
        monthAdd++;

      TableRow tr = (TableRow) _days.getChildAt(row);
      TextView tv = (TextView) tr.getChildAt(col);
      
      //Clear current markers, if any.
      tv.setBackgroundDrawable(null);
      
      tv.setText(dayGrid[i] + "");

      if (monthAdd == 0)
        tv.setTextColor(Color.LTGRAY);
      else
        tv.setTextColor(Color.DKGRAY);

      tv.setTag(new int[] { monthAdd, dayGrid[i] });

      col++;

      if (col == 7) {
        col = 0;
        row++;
      }
    }
  }

  private void setView(int view) {
    if (_currentView != view) {
      _currentView = view;
      _events.setVisibility(_currentView == DAY_VIEW ? View.VISIBLE : View.GONE);
      _years.setVisibility(_currentView == DECADE_VIEW ? View.VISIBLE : View.GONE);
      _months.setVisibility(_currentView == YEAR_VIEW ? View.VISIBLE : View.GONE);
      _days.setVisibility(_currentView == MONTH_VIEW ? View.VISIBLE : View.GONE);
      _up.setEnabled(_currentView != YEAR_VIEW);

      refreshUpText();
    }
  }

  private void refreshUpText() {
    switch (_currentView) {
      case MONTH_VIEW:
        _up.setText(_calendar.toString("MMMM yyyy"));
        break;
      case YEAR_VIEW:
        _up.setText(_currentYear + "");
        break;
      case CENTURY_VIEW:
        _up.setText("CENTURY_VIEW");
        break;
      case DECADE_VIEW:
        _up.setText("DECADE_VIEW");
        break;
      case DAY_VIEW:
        _up.setText(_calendar.toString("EEEE, MMMM dd, yyyy"));
        break;
      case ITEM_VIEW:
        _up.setText("ITEM_VIEW");
        break;
      default:
        break;
    }
  }

  private void refreshCurrentDate() {
    _currentYear = _calendar.getYear();
    _currentMonth = _calendar.getMonth();
    _calendar.getDay();
  }

  private void invokeMonthChangedListener() {
    if (_onMonthChangedListener != null)
      _onMonthChangedListener.onMonthChanged(this);
  }

  private void invokeSelectedDayChangedListener() {
    if (_onSelectedDayChangedListener != null)
      _onSelectedDayChangedListener.onSelectedDayChanged(this);
  }

  private final int CENTURY_VIEW = 5;
  private final int DECADE_VIEW = 4;
  private final int YEAR_VIEW = 3;
  private final int MONTH_VIEW = 2;
  private final int DAY_VIEW = 1;
  private final int ITEM_VIEW = 0;

  private CalendarWrapper _calendar;
  private TableLayout _days;
  private TableLayout _months;
  private TableLayout _years;
  private LinearLayout _events;
  private Button _up;
  private Button _prev;
  private Button _next;
  private OnMonthChangedListener _onMonthChangedListener;
  private OnSelectedDayChangedListener _onSelectedDayChangedListener;
  private int _currentView;
  private int _currentYear;
  private int _currentMonth;
}

Java Source Code List

• Back to Timer/clock  ↑