View Provider

Since a few UIKit classes have view as property, view in AssistiveViewProvider has been renamed to assistiveView in order to avoid confusion.

1.3 - view provider

Added protocol AssistiveControlViewProvider which provides a UIView object, and now AssistiveControl has providers for collapsed and expanded views, instead of having two UIView properties.

Release 1.2: delegation and sample

Added AssistiveControlDelegate for observing control state changes, also added more code in the sample project.

First Swift rewrite

This release rewrites the control in Swift as a Framework. Will need to fix a few things such like adding documentation and a more useful sample project.