A port of android-times-square.

Standalone Android widget for picking a single date from a calendar view.

Include CalendarPickerView in your layout xml.

<monodroid.timessquare.CalendarPickerView
    android:id="@+id/calendar_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    />

This is a fairly large control so it is wise to give it ample space in your layout. On small devices it is recommended to use a dialog, full-screen fragment, or dedicated activity. On larger devices like tablets, displaying full-screen is not recommended. A fragment occupying part of the layout or a dialog is a better choice.

In the OnCreate of your activity/dialog or the OnCreateView of your fragment, initialize the view with a range of valid dates as well as the currently selected date.

...

var nextYear = DateTime.Now.AddYears(1);

var calendar = FindViewById<CalendarPickerView> (Resource.Id.calendar_view);
calendar.Init (DateTime.Now, nextYear)
    .WithSelectedDate(DateTime.Now);

The default mode of the view is to have one selectable date. If you want the user to be able to select multiple dates or a date range, use the InMode() method:

calendar.Init (DateTime.Now, nextYear)
    .InMode(CalendarPickerView.SelectionMode.Range);

To retrieve the currently selected date, call calendar.SelectedDate on the view.

The idea of original android-times-square could be found here.

For Android, we use the standard Java Calendar class to do our date calculations. We considered using a third-party date library but decided to keep our library’s footprint as small as possible. As for the layout, we wrote a custom ListView: each row represents one month. Each MonthView uses custom measurement and layout logic for optimal scrolling speed.

The latest version can be downloade in zip and referenced by your application as a library project.

Copyright 2012 Square, Inc.

Original work: (https://github.com/square/android-times-square).

Ported to Mono for Android.

Copyright (C) 2013 Aaron He <aaron.wei.he@gmail.com>

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.