collectionView 和 tableView的嵌套使用
#import "ViewController.h"
#define HEIGHT [UIScreen mainScreen].bounds.size.height
#define WIDTH [UIScreen mainScreen].bounds.size.width
@interface ViewController ()<UICollectionViewDelegate,UICollectionViewDataSource,UITableViewDelegate,UITableViewDataSource>
@property(nonatomic,strong)UIView* backvView;
@property(nonatomic,strong)UIScrollView* secondScrollView;
@property(nonatomic,strong)UICollectionView* collectionView;
@property(nonatomic,strong)UITableView * tableView;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//添加ui
[self AddUI];
//添加集合视图
[self collectionViewMethods];
//添加单元格
[self tableViewMethods];
}
-(void)AddUI
{
_backvView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT-40)];
_backvView.backgroundColor=[UIColor cyanColor];
[self.view addSubview:_backvView];
UIImageView* fristImageView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, WIDTH, 520.0/2208.0*HEIGHT)];
fristImageView.backgroundColor = [UIColor yellowColor];
[_backvView addSubview:fristImageView];
_secondScrollView=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 520.0/2208.0*HEIGHT, WIDTH, 640.0/2208.0*HEIGHT)];
_secondScrollView.backgroundColor=[UIColor blueColor];
[_backvView addSubview:_secondScrollView];
UIView * thirdView=[[UIView alloc]initWithFrame:CGRectMake(0, 1160.0/2208.0*HEIGHT, WIDTH,30.0/2208.0*HEIGHT)];
thirdView.backgroundColor=[UIColor colorWithRed:236/255.0 green:236/255.0 blue:236/255.0 alpha:1];
[_backvView addSubview:thirdView];
UIView* fourthView=[[UIView alloc]initWithFrame:CGRectMake(0, 1190.0/2208.0*HEIGHT, WIDTH, 830.0/2208.0*HEIGHT)];
fourthView.backgroundColor=[UIColor greenColor];
[_backvView addSubview:fourthView];
UIView* fifthView=[[UIView alloc]initWithFrame:CGRectMake(0, 2010.0/2208.0*HEIGHT, WIDTH, 45.0/2208.0*HEIGHT)];
fifthView.backgroundColor=[UIColor colorWithRed:236/255.0 green:236/255.0 blue:236/255.0 alpha:1];
[_backvView addSubview:fifthView];
}
-(void)tableViewMethods
{
_tableView=[[UITableView alloc]initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT) style:UITableViewStylePlain];
_tableView.delegate=self;
_tableView.dataSource=self;
[self.view addSubview:_tableView];
_tableView.tableHeaderView=_backvView;
}
-(void)collectionViewMethods
{
//初始化集合视图对象
UICollectionViewFlowLayout* layout=[[UICollectionViewFlowLayout alloc]init];
//设置集合视图滚动方向
[layout setScrollDirection:UICollectionViewScrollDirectionHorizontal];
//设置item的大小
[layout setItemSize:CGSizeMake(150.0/1242.0*WIDTH, 150.0/2208.0*HEIGHT)];
//设置集合视图的范围 距离边距 依次是上左下右
[layout setSectionInset:UIEdgeInsetsMake(70.0/2208.0*HEIGHT, 70.0/1242.0*WIDTH, 100.0/2208.0*HEIGHT, 70.0/1242.0*WIDTH)];
//设置最小行间距
layout.minimumLineSpacing = 90.0/1242.0*WIDTH;
//最小列间距
layout.minimumInteritemSpacing = 60.0/2208.0*HEIGHT;
[self setCollectionView:[[UICollectionView alloc]initWithFrame: CGRectMake(0, 0, WIDTH, 640.0/2208.0*HEIGHT)collectionViewLayout:layout]];
[_collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"cell"];
_collectionView.delegate = self;
_collectionView.dataSource = self;
_collectionView.backgroundColor = [UIColor whiteColor];
[_secondScrollView addSubview:_collectionView];
}
#pragma mark -UITableViewDelegate
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 10;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
{
//创建一个静态的字符串 当作单元格的标记
static NSString* cellId=@"cell";
//先表格视图的单元格池 中获取有该标记的单元格 获取到的单元格上暂时没有被使用的
UITableViewCell* cell=[tableView dequeueReusableCellWithIdentifier:cellId];
if (cell==nil)
{
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];
}
return cell;
}
#pragma mark -UICollectionViewDelegate
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
return 20;
}
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
UICollectionViewCell* cell=[collectionView dequeueReusableCellWithReuseIdentifier:@"cell" forIndexPath:indexPath];
[cell setBackgroundColor:[UIColor colorWithRed:arc4random () % 255 /255.0 green:arc4random () % 255 /255.0 blue:arc4random () % 255 /255.0 alpha:1]];
return cell;
}
@end