I would like to create apps which have 2 views (top & bottom).
The top view is scrollable and contains multiple textfields and labels.
The bottom view is non-scrollable but needs to auto adjust to fit into bottom screen like a keyboard when the screen size is changed (I want it to be usable from iPhone 4 to 6 Plus). The bottom view will contain a custom function button to trigger actions and updates in the top view.
I have this working on Android with LinearLayout, but I'm stuck with iOS.
Try to place table view or scroll view in top which will scroll and a UIView on bottom. make the height of UIView constant and table view or scroll view which you will use in top will change the height according as the screen size. If you got confused the post the comment.
For table view see this tutorial iOS - Custom table cell not full width of UITableView
Try and inform me what u got