Embedding a Custom Control in a Metadata-Driven Tile
Similarly to adding a custom subview to a metadata-driven tile, you can embed a custom UIControl element in a tile.
The framework renders the control, but you must handle the events and the actions (described in the configuration) according to your own requirements.
You can add custom controls (UIButton, UIPickerView, and so on) as subviews to a metadata-driven tile. Action messages generated by these custom controls are routed back to the custom view controller that built the controls, and are processed as usual.