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Update: Now supports 64-bit Unified API!

The ModalPickerViewController is a view controller that is designed to replace ActionSheetDatePicker. The ActionSheetDatePicker was an example provided by Xamarin to show a nice looking Date Picker that did not take up the whole screen.

Though this did do the job, the UIActionSheet was not designed to be subclassed or views added to its hierarchy. Starting with iOS 7, Apple started issuing runtime warnings, but did not crash the app. The warnings looked something like this:

Error: CGContextSetFillColorWithColor: invalid context 0x0. This is a serious error. This application, or a library it uses, is using an invalid context and is thereby contributing to an overall degradation of system stability and reliability. This notice is a courtesy: please fix this problem. It will become a fatal error in an upcoming update.

Notice the last two lines of the warning. Apple was warning developers in iOS 7 that this was not the way the UIActionSheet was intended to be used, and that it will BREAK in a future version of iOS. Well, it now crashes on iOS 8.

Date Picker ScreenshotCustom Picker Screenshot

Example Usage

Please see the blog post at for example usage

Areas For Improvement

When you rotate between Portrait and Landscape, the transition is not as smooth as I would like it to be. Feel free to submit a pull request and take a shot at it! :)


Ruben Macias @sharpmobilecode


Licensed under the Apache License, Version 2.0


A Modal Picker that replaces the ActionSheetDatePicker for Xamarin.iOS



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