Collection视图初始化查询

Question

我试图初始化集合查看其展示不兼容的类型。我已经写了下面的代码

UICollectionView * collCobj = [[UICollectionView alloc]initWithFrame:CGRectMake(0, 260, 320, 230) collectionViewLayout:UICollectionViewScrollPositionLeft]; 

Answer 1

变化

uicollectionview collCobj 

到

UICollectionView *collCobj 

你可能会错过*和missseplled集合视图类名。

编辑

给予适当的参数作为布局。您正在通过UICollectionViewScrollPositionLeft作为错误的布局对象。勾选此

UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc]init]; 
UICollectionView *collCobj = [[UICollectionView alloc]initWithFrame:CGRectMake(0, 260, 320, 230) collectionViewLayout:layout]; 

Answer 2

Initialize collection in proper manner 

UICollectionViewFlowLayout *layout=[[UICollectionViewFlowLayout alloc] init]; 

    collectionViewObj=[[UICollectionView alloc] initWithFrame:CGRectMake(0, 0 , 320, 250) collectionViewLayout:layout]; 

    [collectionViewObj setDataSource:self]; 
    [collectionViewObj setDelegate:self]; 

    [collectionViewObj registerClass:[Cell class] forCellWithReuseIdentifier:@"cellIdentifier"]; 


    [self.view addSubview:collectionViewObj];