UICollectionView - 向页脚视图添加操作
UICollectionView - Add action to footer view
我有一个带有页脚视图的 UICollectionView。页脚视图 class 是我创建的。页脚视图是我想要执行操作的按钮。我试图添加一个动作,但当我按下按钮时没有任何反应。请帮助我。
我的代码:
FViewController.m
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
UICollectionReusableView *reusableview = nil;
if (kind == UICollectionElementKindSectionFooter) {
FooterCollectionReusableView *footerview = [[FooterCollectionReusableView alloc] init];
footerview = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:@"FooterView" forIndexPath:indexPath];
[footerview.todoButton addTarget:self action:@selector(todosPush:) forControlEvents:UIControlEventTouchUpInside];
reusableview = footerview;
}
return reusableview;
}
-(IBAction)todosPush:(id)sender{
NSLog(@"todosPush");
UIStoryboard *storyBoard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
TipoEjercicioViewController *tipo = [storyBoard instantiateViewControllerWithIdentifier:@"TipoEjercicioView"];
tipo.ejercicio = 22;
[self.navigationController pushViewController:tipo animated:YES];
}
FooterCollectionReusableView.h
@interface FooterCollectionReusableView : UICollectionReusableView
@property (nonatomic, retain) IBOutlet UIButton * todoButton;
@end
试试这个:
添加以下行
FooterCollectionReusableView *footerview = (FooterCollectionReusableView *)[collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:@"FooterView" forIndexPath:indexPath];
和
return (UICollectionReusableView *)footerview;
还要检查你的 todoButton 是否连接到故事板中的 Button。
事情是这样的:
is you connected todoButton with button in storyboard?
我忘记了连接按钮 :( 现在可以使用了
谢谢 Lalit Kumar
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
{
CGSize footersize = CGSizeMake([UIScreen mainScreen].bounds.size.width, 20);
return footersize;
}
我有一个带有页脚视图的 UICollectionView。页脚视图 class 是我创建的。页脚视图是我想要执行操作的按钮。我试图添加一个动作,但当我按下按钮时没有任何反应。请帮助我。
我的代码:
FViewController.m
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
UICollectionReusableView *reusableview = nil;
if (kind == UICollectionElementKindSectionFooter) {
FooterCollectionReusableView *footerview = [[FooterCollectionReusableView alloc] init];
footerview = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:@"FooterView" forIndexPath:indexPath];
[footerview.todoButton addTarget:self action:@selector(todosPush:) forControlEvents:UIControlEventTouchUpInside];
reusableview = footerview;
}
return reusableview;
}
-(IBAction)todosPush:(id)sender{
NSLog(@"todosPush");
UIStoryboard *storyBoard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
TipoEjercicioViewController *tipo = [storyBoard instantiateViewControllerWithIdentifier:@"TipoEjercicioView"];
tipo.ejercicio = 22;
[self.navigationController pushViewController:tipo animated:YES];
}
FooterCollectionReusableView.h
@interface FooterCollectionReusableView : UICollectionReusableView
@property (nonatomic, retain) IBOutlet UIButton * todoButton;
@end
试试这个:
添加以下行
FooterCollectionReusableView *footerview = (FooterCollectionReusableView *)[collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionFooter withReuseIdentifier:@"FooterView" forIndexPath:indexPath];
和
return (UICollectionReusableView *)footerview;
还要检查你的 todoButton 是否连接到故事板中的 Button。
事情是这样的:
is you connected todoButton with button in storyboard?
我忘记了连接按钮 :( 现在可以使用了
谢谢 Lalit Kumar
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
{
CGSize footersize = CGSizeMake([UIScreen mainScreen].bounds.size.width, 20);
return footersize;
}