Question

如何高度自定义CollectionView的header和foot

Answer 1

接下来就是主要的CollectionView的实现。首先是头文件的实现，先定义一个用来区分Collection状态的枚举：
#import <UIKit/UIKit.h>

typedef enum {
CS_Init,
CS_More,
CS_Refresh
}CollectionState;

然后定义delegate与DataSource:
@class iCollectionItem;
@protocol iCollectionDataSource;
@protocol iCollectionDelegate;

Answer 2

#import <UIKit/UIKit.h>

typedef enum {
CS_Init,
CS_More,
CS_Refresh
}CollectionState;

然后定义delegate与DataSource:
@class iCollectionItem;
@protocol iCollectionDataSource;
@protocol iCollectionDelegate;