Behaviour:
Using Android receiver, keyboard does not automatically appear when clicking into an editable text area.
IOs receiver automatically displays keyboard when clicking into an editable text area.
Investigation Conclusion
This is expected within current architecture using android receiver within ICA sessions.
iOS Receiver operates differently due to differing underlying functionality. On IOs there is a check if the touch point is contained in an editable field rectangle, if it is, shows keyboard by itself.
(This functionality does not exist on Android or on Surface with receiver)