ViewController.m文件中#import "ViewController.h"#import "LSHControl.h"#import "SHCollectionReusableView.h"#import "SHCollectionViewCell.h"#define SHCollectionViewCellIdetifiler  @"CollectionViewCell"#define SHCollectionReusableViewHeader  @"CollectionHeader"#define SHCollectionReusableViewFooter  @"CollectionFooter"@interface ViewController ()<UICollectionViewDelegate,UICollectionViewDataSource>{  NSArray *recipeImages;  NSArray *hearderTitleArray;}@property(nonatomic,strong) UICollectionView *rightCollectionView;@end@implementation ViewController- (void)viewDidLoad {  [super viewDidLoad];  NSArray *mainDishImages = [NSArray arrayWithObjects:@"egg_benedict.jpg", @"full_breakfast.jpg", @"ham_and_cheese_panini.jpg", @"ham_and_egg_sandwich.jpg", @"hamburger.jpg", @"instant_noodle_with_egg.jpg", @"japanese_noodle_with_pork.jpg", @"mushroom_risotto.jpg", @"noodle_with_bbq_pork.jpg", @"thai_shrimp_cake.jpg", @"vegetable_curry.jpg", nil];  NSArray *drinkDessertImages = [NSArray arrayWithObjects:@"angry_birds_cake.jpg", @"creme_brelee.jpg", @"green_tea.jpg", @"starbucks_coffee.jpg", @"white_chocolate_donut.jpg", nil];  recipeImages = [NSArray arrayWithObjects:mainDishImages, drinkDessertImages, nil];  hearderTitleArray=@[@"分區1",@"分區2"];  [self createCollectionView];}-(void)createCollectionView{  UICollectionViewFlowLayout *flowLayout=[[UICollectionViewFlowLayout alloc] init];  flowLayout.minimumInteritemSpacing=0.f;//item左右間隔  flowLayout.minimumLineSpacing=5.f;//item上下間隔  flowLayout.sectionInset=UIEdgeInsetsMake(5,15,5, 15);//item對象上下左右的距離  flowLayout.itemSize=CGSizeMake(80, 80);//每一個 item 對象大小  flowLayout.scrollDirection=UICollectionViewScrollDirectionVertical;//設置滾動方向,默認垂直方向.  flowLayout.headerReferenceSize=CGSizeMake(self.view.frame.size.width, 30);//頭視圖的大小  flowLayout.footerReferenceSize=CGSizeMake(self.view.frame.size.width, 30);//尾視圖大小  self.rightCollectionView= [LSHControl createCollectionViewFromFrame:self.view.frame collectionViewLayout:flowLayout dataSource:self delegate:self backgroudColor:[UIColor whiteColor]];  //自定義重用視圖  [self.rightCollectionView registerNib:[UINib nibWithNibName:@"SHCollectionViewCell" bundle:nil] forCellWithReuseIdentifier:SHCollectionViewCellIdetifiler];  [self.rightCollectionView registerClass:[SHCollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:SHCollectionReusableViewHeader];  //使用原有重用視圖  [self.rightCollectionView registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:SHCollectionReusableViewFooter ];  [self.view addSubview:self.rightCollectionView];}- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{  return [recipeImages count];}- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{  return [[recipeImages objectAtIndex:section] count];}- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath{  UICollectionReusableView *reusableview = nil;  if (kind == UICollectionElementKindSectionHeader) {    SHCollectionReusableView *headerView = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:SHCollectionReusableViewHeader forIndexPath:indexPath];    /**     *     * 注意:雖然這里沒有看到明顯的initWithFrame方法,但是在獲取重用視圖的時候,系統會自動調用initWithFrame方法的.所以在initWithFrame里面進行初始化操作,是沒有問題的!     */    [headerView getSHCollectionReusableViewHearderTitle:hearderTitleArray[indexPath.section]];    reusableview = headerView;  }  if (kind == UICollectionElementKindSectionFooter) {    UICollectionReusableView *footerview = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:SHCollectionReusableViewFooter forIndexPath:indexPath];    /**     *  如果頭尾視圖沒什么很多內容,直接創建對應控件進行添加即可,無需自定義.     */    footerview.backgroundColor=[UIColor redColor];    reusableview = footerview;  }  return reusableview;}- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{  /**   *   *  這里自定義cell,使用xib進行布局.對于如何使用xib創建視圖,不明白的,可以看我之前寫的一篇文章.   */  SHCollectionViewCell *cell = (SHCollectionViewCell *)[collectionView dequeueReusableCellWithReuseIdentifier:SHCollectionViewCellIdetifiler forIndexPath:indexPath];  UIImageView *recipeImageView = (UIImageView *)[cell viewWithTag:100];  recipeImageView.image = [UIImage imageNamed:[recipeImages[indexPath.section] objectAtIndex:indexPath.row]];  cell.backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"photo-frame-2.png"]];  return cell;}@end

#import <UIKit/UIKit.h>@interface SHCollectionViewCell : UICollectionViewCell@property (weak, nonatomic) IBOutlet UIImageView *recipeImageView;@end#import "SHCollectionViewCell.h"@implementation SHCollectionViewCell@end

#import <UIKit/UIKit.h>@interface SHCollectionReusableView : UICollectionReusableView/** *  聲明相應的數據模型屬性,進行賦值操作,獲取頭視圖或尾視圖需要的數據.或者提供一個方法獲取需要的數據. */-(void)getSHCollectionReusableViewHearderTitle:(NSString *)title;@end

#import "SHCollectionReusableView.h"#import "LSHControl.h"@interface SHCollectionReusableView (){  UILabel *titleLabel;}@end@implementation SHCollectionReusableView-(id)initWithFrame:(CGRect)frame{  self=[super initWithFrame:frame];  if (self) {    self.backgroundColor=[UIColor greenColor];    [self createBasicView];  }  return self;}/** *  進行基本布局操作,根據需求進行. */-(void)createBasicView{ titleLabel=[LSHControl createLabelWithFrame:CGRectMake(5, 0,self.frame.size.width-50, self.frame.size.height) Font:[UIFont systemFontOfSize:14.0] Text:@"" color:[UIColor grayColor]]; [self addSubview:titleLabel];}/** *  設置相應的數據 * *  @param title  */-(void)getSHCollectionReusableViewHearderTitle:(NSString *)title{  titleLabel.text=title;}@end