Passively Updating the Pasteboard
iOS’s selection and copy interfaces are not, frankly, the most streamlined elements of the operating system. There are times when you want to simplify matters for your user while preparing content that’s meant to be shared with other applications.
Consider Recipe 11-2. It enables the user to use a text view to enter and edit text, while automating the process of updating the pasteboard. When the watcher is active (toggled by a simple button tap), the text updates the pasteboard on each edit. This is accomplished by implementing a text view delegate method (textViewDidChange:) that responds to edits by automatically assigning changes to the pasteboard (updatePasteboard).
This recipe demonstrates the relative simplicity ...
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