You are going to add an array controller to the XIB. That is, the array controller will be instantiated when the XIB is loaded. This may seem odd because so far you have only added views to XIBs. Doing so, however, will make your life much easier as you will need to make a number of configuration changes which would be tedious to perform in code. Drag an Array Controller from the object library and drop it onto Interface Builder’s canvas (Figure 9.6).
Figure 9.6 Adding an array controller to
An icon for the Array Controller will appear at the top level in Interface Builder ...