首先创建继承于UIView的类
在.h类中
#import
@classIrregularCollectionView;
@protocolIrregularCollectionViewDelegate
- (void)didSelectedImage:(NSInteger)index collection:(IrregularCollectionView* )collectionView;
@end
@interfaceIrregularCollectionView : UIView
@property(nonatomic,weak)id delegate;
@end
在.m类中
#import"IrregularCollectionView.h"
@interfaceIrregularCollectionView ()
@property(nonatomic,strong) UICollectionView *collectionV;
@end
@implementationIrregularCollectionView
- (instancetype)initWithFrame:(CGRect)frame
{
if(self= [superinitWithFrame:frame]) {
[self.collectionV registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"UICollectionViewCell"];
[selfaddSubview:self.collectionV];
}
returnself;
}
- (UICollectionView *)collectionV {
UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
flowLayout.minimumLineSpacing =10;
flowLayout.minimumInteritemSpacing =10;
if(_collectionV ==nil) {
_collectionV = [[UICollectionView alloc] initWithFrame:CGRectMake(0,0, MAINWIDTH, kHeightScreenAuto(150)) collectionViewLayout:flowLayout];
_collectionV.delegate =self;
_collectionV.dataSource =self;
_collectionV.scrollEnabled =NO;
_collectionV.backgroundColor = [UIColor whiteColor];
}
return_collectionV;
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
return5;
}
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"UICollectionViewCell"forIndexPath:indexPath];
if(indexPath.item ==0|| indexPath.item ==1) {
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, MAINWIDTH /2, kHeightScreenAuto(70))];
imageView.image = [UIImage imageNamed:@"xue1"];
[cell.contentView addSubview:imageView];
returncell;
}else{
UIImageView *imageV = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, (MAINWIDTH -12) /3, kHeightScreenAuto(60))];
imageV.image = [UIImage imageNamed:@"xue2"];
[cell.contentView addSubview:imageV];
returncell;
}
}
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath{
if(indexPath.item ==0|| indexPath.item ==1){
returnCGSizeMake((self.frame.size.width -12) /2, kHeightScreenAuto(70));
}else{
returnCGSizeMake((self.frame.size.width -24) /3, kHeightScreenAuto(60));
}
}
其次 在跳转有UITableView的页面中,UITableView的初始化要用到UITableViewStylePlain
_tableView = [[UITableView alloc] initWithFrame:[UIScreen mainScreen].bounds style:UITableViewStylePlain];
如果使用UITableViewStyleGrouped 那么UITableView的Y轴会至少给一个分区的headerView的高度,这算是一个小BUG吧 妄各位熟知下
