Nscollectionview + nsarraycontroller practice

1. Drag nscollectionview and nsarraycontroller to XIB respectively. When nscollectionview is dragged, an nscollectionviewitem and an nsview are automatically generated.

2. Set nsarraycontroller

A) set the class name and key in the attributes tab.

B) On the Bindings tab, set the nsarray attribute (such as filesarray) of the content array bound to the file's owner)

3. Set nscollectionview

A) On the Bindings tab, bind content to nsarraycontroller, and set the controller key to arrangedobjects.

4. Set the view of nscollectionviewitem

A) add an nsimageview and an nstextfield to the nsview added in step 1.

B) bind the value of nsimageview to nscollectionviewitem, and set model Key Path to representedobject. bigimage.

C) bind the value of nstextfield to nscollectionviewitem, and set model Key Path to representedobject. Name.