很多时候我们都需要自定义UICollectionViewCell,于是就使用纯代码简单的写了一下UICollectionViewCell的自定义，
希望可以跟大家带来帮助
代码如下：
UICollectionViewCell.h
@interface GKCollectionViewCell : UICollectionViewCell
@property(nonatomic ,strong)UIImageView *imgView;
@property(nonatomic ,strong)UILabel *text;
@property(nonatomic ,strong)UIButton *btn;
@end
UICollectionViewCell.m
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
self.backgroundColor = [UIColor purpleColor];
self.imgView = [[UIImageView alloc]initWithFrame:CGRectMake(5, 5, CGRectGetWidth(self.frame)-10, CGRectGetWidth(self.frame)-10)];
self.imgView.backgroundColor = [UIColor groupTableViewBackgroundColor];
[self addSubview:self.imgView];
self.text = [[UILabel alloc]initWithFrame:CGRectMake(5, CGRectGetMaxY(self.imgView.frame), CGRectGetWidth(self.frame)-10, 20)];
self.text.backgroundColor = [UIColor brownColor];
self.text.textAlignment = NSTextAlignmentCenter;
[self addSubview:self.text];
self.btn = [UIButton buttonWithType:UIButtonTypeCustom];
self.btn.frame = CGRectMake(5, CGRectGetMaxY(self.text.frame), CGRectGetWidth(self.frame)-10,30);
[self.btn setTitle:@"按钮" forState:UIControlStateNormal];
self.btn.backgroundColor = [UIColor orangeColor];
[self addSubview:self.btn];
}
return self;
}
ViewController.h
@interface ViewController : UIViewController{
NSMutableArray *_cellArray; //collectionView数据
}
@property (nonatomic, strong) UICollectionView *collectionView;
@end
ViewController.m
#import "ViewController.h"
#import "GKCollectionViewCell.h"
#define fDeviceWidth ([UIScreen mainScreen].bounds.size.width)
#define fDeviceHeight ([UIScreen mainScreen].bounds.size.height)
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
//导航栏背景颜色
[self.navigationController.navigationBar setBarTintColor:[UIColor orangeColor]];
[self.navigationController.navigationBar setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor blackColor],NSForegroundColorAttributeName,[UIFont boldSystemFontOfSize:20.0f],NSFontAttributeName, nil]];
self.navigationItem.title = @"自定义collectionView";
/**
* 创建collectionView self自动调用setter getter方法
*/
[self.view addSubview:self.collectionView];
/**
* 加载的数据
*/
NSArray *imgArray = [NSArray arrayWithObjects:@"IMG_0325.JPG",@"IMG_0325.JPG",@"IMG_0325.JPG",@"IMG_0325.JPG",@"IMG_0325.JPG",@"IMG_0325.JPG", nil];
//collectionView数据
_cellArray = [imgArray mutableCopy];
}
#pragma mark - 创建collectionView并设置代理
- (UICollectionView *)collectionView
{
if (_collectionView == nil) {
UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
_collectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, 0, fDeviceWidth, fDeviceHeight) collectionViewLayout:flowLayout];
//定义每个UICollectionView 的大小
flowLayout.itemSize = CGSizeMake((fDeviceWidth-20)/2, (fDeviceWidth-20)/2+50);
//定义每个UICollectionView 横向的间距
flowLayout.minimumLineSpacing = 5;
//定义每个UICollectionView 纵向的间距
flowLayout.minimumInteritemSpacing = 0;
//定义每个UICollectionView 的边距距
flowLayout.sectionInset = UIEdgeInsetsMake(0, 5, 5, 5);//上左下右
//注册cell和ReusableView（相当于头部）
[_collectionView registerClass:[GKCollectionViewCell class] forCellWithReuseIdentifier:@"cell"];
//设置代理
_collectionView.delegate = self;
_collectionView.dataSource = self;
//背景颜色
_collectionView.backgroundColor = [UIColor whiteColor];
//自适应大小
_collectionView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
}
return _collectionView;
}
#pragma mark - UICollectionView delegate dataSource
#pragma mark 定义展示的UICollectionViewCell的个数
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return [_cellArray count];
}
#pragma mark 定义展示的Section的个数
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 1;
}
#pragma mark 每个UICollectionView展示的内容
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *identify = @"cell";
GKCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:identify forIndexPath:indexPath];
[cell sizeToFit];
cell.imgView.image = [UIImage imageNamed:_cellArray[indexPath.item]];
cell.text.text = [NSString stringWithFormat:@"Cell %ld",indexPath.item];
//按钮事件就不实现了……
return cell;
}
#pragma mark UICollectionView被选中时调用的方法
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(@"选择%ld",indexPath.item);
}
原文：http://www.cnblogs.com/yanliwei/p/6388418.html