QHP_35UITableView嵌套CollectionVie
原博客地址：http://www.cnblogs.com/qiuwenbin/p/5046691.html 如有侵权还请告知
// 如果想在TableView 上放 CollectionView, 最好要写在TableViewCell里, 并且CollectionView的代理方法都要写在TableViewCell里, 如果在ViewController里写的话,会因为cell重用的问题出现崩溃, 并且注册CollectionView的cell的时候, 会出现很多问题.
// HPJRRMTableViewCell.h
#import@class HomePageModel;
typedef void(^HPJRRMTableViewCellBlock)(HomePageModel *hpModel);
@interface HPJRRMTableViewCell : UITableViewCell
@property (nonatomic, strong) HomePageModel *jrrmModel;
@property (nonatomic, copy) HPJRRMTableViewCellBlock block;
@end
// block的定义是为了实现点击CollectionView跳转到指定的界面
// HPJRRMTableViewCell.m的实现内容
#import "HPJRRMTableViewCell.h"
#import "HPJRRMCollectionViewCell.h"
#import "HomePageModel.h"
@interface HPJRRMTableViewCell ( )
@property (nonatomic, strong) UICollectionView *collectionView;
@property (nonatomic, strong) NSMutableArray *jrrmArr;
@end
@implementation HPJRRMTableViewCell
- (void)setJrrmModel:(HomePageModel *)jrrmModel {
if (_jrrmModel != jrrmModel) {
_jrrmModel = jrrmModel;
}
// 刷新数据
[self.collectionView reloadData];
}
- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// 在TableViewCell中调用getCollectionView方法
[self getCollectionView];
}
return self;
}
- (void)getCollectionView {
// 创建layout
UICollectionViewFlowLayout *flayout = [[UICollectionViewFlowLayout alloc] init];
flayout.itemSize = CGSizeMake((self.contentView.frame.size.width - 20) / 2, 180);
// flayout.scrollDirection = UICollectionViewScrollDirectionVertical;
flayout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
flayout.sectionInset = UIEdgeInsetsMake(5, 10, 5, 5);
// 创建CollectionView
self.collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(0, 0, 375, 180) collectionViewLayout:flayout];
self.collectionView.delegate = self;
self.collectionView.dataSource = self;
self.collectionView.backgroundColor = [UIColor whiteColor];
[self.contentView addSubview:self.collectionView];
// self.collectionView.showsHorizontalScrollIndicator = NO;
[self.collectionView registerClass:[HPJRRMCollectionViewCell class] forCellWithReuseIdentifier:@"HPJRRMCollectionViewCell"];
// 网络请请求
[self getData];
}
#pragma mark - 网络请求
- (void)getData {
}
#pragma mark - UICollectionView必须实现的方法
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
return 4;
// return self.jrrmArr.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
HPJRRMCollectionViewCell *jrrmCollectionViewCell = [collectionView dequeueReusableCellWithReuseIdentifier:@"HPJRRMCollectionViewCell" forIndexPath:indexPath];
jrrmCollectionViewCell.backgroundColor = [UIColor redColor];
// jrrmCollectionViewCell.collectionModel = self.jrrmArr[indexPath.item];
return jrrmCollectionViewCell;
}
#pragma mark - UICollectionView实现点击跳转的方法
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
HomePageModel *model = [[HomePageModel alloc] init];
model = self.jrrmModel;
if (_block) {
_block(model);
}
NSLog(@"实现点击跳转的方法section: %ld, item: %ld", indexPath.section, indexPath.item);
}
#HPJRRMCollectionViewCell.h中的文件实现
#import@class HomePageModel;
@interface HPJRRMCollectionViewCell : UICollectionViewCell
@property (nonatomic, strong) HomePageModel *collectionModel;
@end
#HPJRRMCollectionViewCell.m中的文件实现
#import "HPJRRMCollectionViewCell.h"
#import "UIImageView+WebCache.h"
#import "HomePageModel.h"
// 延展
@interface HPJRRMCollectionViewCell ()
@property (nonatomic, strong) UIImageView *imageView;
@end
@implementation HPJRRMCollectionViewCell
/** 初始化 */
- (instancetype)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
// 创建控件
self.imageView = [[UIImageView alloc] init];
self.imageView.backgroundColor = [UIColor redColor];
[self.contentView addSubview:self.imageView];
}
return self;
}
/** 只做布局 不能赋值*/
- (void)applyLayoutAttributes:(UICollectionViewLayoutAttributes *)layoutAttributes {
// 图片布局
self.imageView.frame = CGRectMake(0, 0, layoutAttributes.size.width, 180);
}
// setter方法赋值
-(void)setCollectionModel:(HomePageModel *)collectionModel {
if (_collectionModel != collectionModel) {
_collectionModel = collectionModel;
}
// [self.imageView sd_setImageWithURL:[NSURL URLWithString:collectionModel.coverImg] placeholderImage:[UIImage imageNamed:@"CommodityBackgrond"]];
}
@end
// 在Controller里面的代理写的方法
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
HPJRRMTableViewCell *jrrmCell = [tableView dequeueReusableCellWithIdentifier:@"jrrmCell"];
// jrrmCell.jrrmModel = self.jrrmArr[indexPath.row];
// jrrmCell.textLabel.text = @"111";
jrrmCell.block = ^(HomePageModel *model){
SearchViewController *sVC = [[SearchViewController alloc] init];
[self.navigationController pushViewController:sVC animated:YES];
};
jrrmCell.backgroundColor = [UIColor cyanColor];
return jrrmCell;
}
