Called to inform the input method that text input has finished in the last editor. At this point there may be a call to InputMethodService.OnStartInput(Android.Views.InputMethods.EditorInfo, System.Boolean) to perform input in a new editor, or the input method may be left idle. This method is not called when input restarts in the same editor.
The default implementation uses the InputConnection to clear any active composing text; you can override this (not calling the base class implementation) to perform whatever behavior you would like.