OC: UICollectionView+MaxMethod

.h文件

#import <UIKit/UIKit.h>

@interface UICollectionView (MaxMethod)

- (void)registerNib:(NSString *)nibName;
- (void)registerClass:(NSString *)className;

@end

.m文件

#import "UICollectionView+MaxMethod.h"

@implementation UICollectionView (MaxMethod)
- (void)registerNib:(NSString *)nibName {
    UINib *nib = [UINib nibWithNibName:nibName bundle:[NSBundle mainBundle]];
    [self registerNib:nib forCellWithReuseIdentifier:nibName];
}

- (void)registerClass:(NSString *)className {
    [self registerClass:NSClassFromString(className) forCellWithReuseIdentifier:className];
}
@end