IOS 自定义UICollectionView的头视图或者尾视图UICollectionReusableView

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=@[@"分区1",@"分区2"];  [self createCollectionView];}-(void)createCollectionView{  UICollectionViewFlowLayout *flowLayout=[[UICollectionViewFlowLayout alloc] init];  flowLayout.minimumInteritemSpacing=0.f;//item左右间隔  flowLayout.minimumLineSpacing=5.f;//item上下间隔  flowLayout.sectionInset=UIEdgeInsetsMake(5,15,5, 15);//item对象上下左右的距离  flowLayout.itemSize=CGSizeMake(80, 80);//每一个 item 对象大小  flowLayout.scrollDirection=UICollectionViewScrollDirectionVertical;//设置滚动方向,默认垂直方向.  flowLayout.headerReferenceSize=CGSizeMake(self.view.frame.size.width, 30);//头视图的大小  flowLayout.footerReferenceSize=CGSizeMake(self.view.frame.size.width, 30);//尾视图大小  self.rightCollectionView= [LSHControl createCollectionViewFromFrame:self.view.frame collectionViewLayout:flowLayout dataSource:self delegate:self backgroudColor:[UIColor whiteColor]];  //自定义重用视图  [self.rightCollectionView registerNib:[UINib nibWithNibName:@"SHCollectionViewCell" bundle:nil] forCellWithReuseIdentifier:SHCollectionViewCellIdetifiler];  [self.rightCollectionView registerClass:[SHCollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:SHCollectionReusableViewHeader];  //使用原有重用视图  [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:虽然这里没有看到明显的initWithFrame方法,但是在获取重用视图的时候,系统会自动调用initWithFrame方法的.所以在initWithFrame里面进行初始化操作,是没有问题的!     */    [headerView getSHCollectionReusableViewHearderTitle:hearderTitleArray[indexPath.section]];    reusableview = headerView;  }  if (kind == UICollectionElementKindSectionFooter) {    UICollectionReusableView *footerview = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:SHCollectionReusableViewFooter forIndexPath:indexPath];    /**     *  如果头尾视图没什么很多内容,直接创建对应控件进行添加即可,无需自定义.     */    footerview.backgroundColor=[UIColor redColor];    reusableview = footerview;  }  return reusableview;}- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{  /**   *   *  这里自定义cell,使用xib进行布局.对于如何使用xib创建视图,不明白的,可以看我之前写的一篇文章.   */  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/** *  声明相应的数据模型属性,进行赋值操作,获取头视图或尾视图需要的数据.或者提供一个方法获取需要的数据. */-(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;}/** *  进行基本布局操作,根据需求进行. */-(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];}/** *  设置相应的数据 * *  @param title  */-(void)getSHCollectionReusableViewHearderTitle:(NSString *)title{  titleLabel.text=title;}@end