Previously I mentioned a text entry component modeled after the compose bar from the iMessages app.
Here’s an open source component from Damiaan Twelkeer caled RDRStickyKeyboardView that provides an expanding text view for entry that sticks to the screen when the keyboard is removed.
RDRStickyKeyboardView follows the keyboard to the bottom of the screen, and moves up when the keyboard is shown like in the iMessage app. You can change the buttons that appear on the left and right sides of the components.
You can find RDRStickyKeyboardView on Github here.
A very nice component for messaging apps.