集合视图初始化查询

Question

我正在尝试初始化集合视图，显示其不兼容的类型。我写了下面的代码

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

Answer 1

更改

uicollectionview collCobj 

到

UICollectionView *collCobj  

您可能会错过*并错过了集合视图类名称。

修改

给出适当的参数作为布局。您正在传递UICollectionViewScrollPositionLeft作为错误的布局对象。检查一下

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];