Package for View

If you have more than one child control inside a view, you will typically consider customizing a view to shield the creation of its inner child controls from the outside world.

The outside world can pass in the corresponding model data to View,view to get the model data and set the corresponding data for the inner child control.

Basic steps for Encapsulating controls
Adding child controls in the initWithFrame: method to provide a convenient construction method
Set the child control's frame in the Layoutsubviews method (be sure to call Super's layoutsubviews)
Add model properties, set data to child controls in the model properties set method

Package for View