#import
@interface PublishCell : UICollectionViewCell
@property (strong, nonatomic) UIImageView *topImage;
@property (strong, nonatomic) UILabel *btmlabel;
#import "PublishCell.h"
@implementation PublishCell
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self)
{
self.topImage = [[UIImageView alloc] initWithFrame:CGRectMake(10, 0, 70, 70)];
self.topImage.layer.masksToBounds = YES;
self.topImage.layer.cornerRadius = 20;
self.topImage.backgroundColor = [UIColor redColor];
[self.contentView addSubview:self.topImage];
self.btmlabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 80, 70, 20)];
self.btmlabel.textAlignment = NSTextAlignmentCenter;
self.btmlabel.textColor = [UIColor blackColor];
self.btmlabel.font = [UIFont fontWithName:@"Verdana-Bold"size:19];
[self.contentView addSubview:self.btmlabel];
}
return self;
}
@end
#import
@interface PublishViewController : UIViewController
@end
#import "PublishViewController.h"
#import "PublishCell.h"
@interface PublishViewController () {
UICollectionView *mainCollectionView;
}
@end
@implementation PublishViewController
- (void)viewDidLoad {
self.navigationController.navigationBar.tintColor = [UIColor whiteColor];
self.title = @"发布";
// Do any additional setup after loading the view.
self.view.backgroundColor = [UIColor whiteColor];
//1.初始化layout
UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
//设置collectionView滚动方向
// [layout setScrollDirection:UICollectionViewScrollDirectionHorizontal];
//设置headerView的尺寸大小
//layout.headerReferenceSize = CGSizeMake(self.view.frame.size.width, 100);
//该方法也可以设置itemSize
layout.itemSize =CGSizeMake(90, 110);
//2.初始化collectionView
mainCollectionView = [[UICollectionView alloc] initWithFrame:self.view.bounds collectionViewLayout:layout];
[self.view addSubview:mainCollectionView];
mainCollectionView.backgroundColor = [UIColor clearColor];
//3.注册collectionViewCell
//注意，此处的ReuseIdentifier 必须和 cellForItemAtIndexPath 方法中 一致 均为 cellId
[mainCollectionView registerClass:[PublishCell class] forCellWithReuseIdentifier:@"cellId"];
//注册headerView 此处的ReuseIdentifier 必须和 cellForItemAtIndexPath 方法中 一致 均为reusableView
[mainCollectionView registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"reusableView"];
//4.设置代理
mainCollectionView.delegate = self;
mainCollectionView.dataSource = self;
}
#pragma mark collectionView代理方法
//返回section个数
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 1;
}
//每个section的item个数
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return 12;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
NSString *tablePList = [[NSBundle mainBundle] pathForResource:@"tableList" ofType:@"plist"];
NSArray *tableData = [[NSArray alloc] initWithContentsOfFile:tablePList];
PublishCell *cell = (PublishCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"cellId" forIndexPath:indexPath];
[cell.topImage setImage:[UIImage imageNamed:tableData[indexPath.row][@"leftImage"]]];
cell.btmlabel.text = tableData[indexPath.row][@"titleLabel"];
return cell;
}
//设置每个item的尺寸
//- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
//{
// return CGSizeMake(90, 90);
//}
//footer的size
//- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
//{
// return CGSizeMake(10, 10);
//}
//header的size
//- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
//{
// return CGSizeMake(10, 10);
//}
//设置每个item的UIEdgeInsets
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
return UIEdgeInsetsMake(20, 20, 20, 20);
}
//设置每个item水平间距
//- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section
//{
// return 20;
//}
//设置每个item垂直间距
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section
{
return 20;
}
//通过设置SupplementaryViewOfKind 来设置头部或者底部的view，其中 ReuseIdentifier 的值必须和 注册是填写的一致，本例都为 “reusableView”
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
UICollectionReusableView *headerView = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"reusableView" forIndexPath:indexPath];
headerView.backgroundColor =[UIColor grayColor];
UILabel *label = [[UILabel alloc] initWithFrame:headerView.bounds];
label.text = @"这是collectionView的头部";
label.font = [UIFont systemFontOfSize:20];
[headerView addSubview:label];
return headerView;
}
//点击item方法
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
PublishCell *cell = (PublishCell *)[collectionView cellForItemAtIndexPath:indexPath];
NSString *msg = cell.btmlabel.text;
NSLog(@"%@",msg);
}
- (UIStatusBarStyle)preferredStatusBarStyle {
return UIStatusBarStyleLightContent;
}
@end