다음 코드는 UICollectionView를 생성합니다. UICollectionViewCell을 길게 누르면 UIActionSheet가 나타납니다.UIActionSheet가 한 번만 표시됩니다.
이것은 작동하지만 한 번만 작동합니다. UIActionSheet를 닫고 같은 셀을 다시 길게 누르면 아무 일도 일어나지 않습니다.
내가 잘못하고있는 아이디어가 있습니까?
#import "ProjectsListViewController.h"
#import <QuartzCore/QuartzCore.h>
@interface ProjectsListViewController()
@end
@implementation ProjectsListViewController
@synthesize appDelegate;
- (void)viewDidLoad
{
[super viewDidLoad];
appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
// CREATE THE COLLECTION VIEW
UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
[self setCollectionView:[[UICollectionView alloc] initWithFrame:CGRectMake(20, 54, [[self view] bounds].size.width - 40, [[self view] bounds].size.height) collectionViewLayout:flowLayout]];
[[self collectionView] setDataSource:self];
[[self collectionView] setDelegate:self];
[self.view addSubview:self.collectionView];
[self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"Cell"];
[[self collectionView] setAutoresizingMask:UIViewAutoresizingFlexibleWidth];
}
- (NSInteger)collectionView:(UICollectionView *)view numberOfItemsInSection:(NSInteger)section
{
return [[[appDelegate userSettingsDictionary] objectForKey:@"Projects"] count];
}
- (NSInteger)numberOfSectionsInCollectionView: (UICollectionView *)collectionView
{
return 1;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"Cell" forIndexPath:indexPath];
// CREATE A BACKGROUND VIEW FOR THE FOLDER IMAGE
UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"folder.png"]];
UIView *background = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 122, 89)];
[background setBackgroundColor:[UIColor colorWithPatternImage:image]];
[cell addSubview:background];
// SET THE CELL TEXT
UILabel *cellLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 95, 130, 100)];
[cellLabel setText:[[[[[appDelegate userSettingsDictionary] objectForKey:@"Projects"] objectAtIndex:[indexPath row]] objectForKey:@"Project Name"] uppercaseString]];
// LISTEN FOR A LONG PRESS ON EACH FOLDER
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)];
[cell addGestureRecognizer:longPress];
[cell addSubview:cellLabel];
return cell;
}
// PRESENT AN ACTION SHEET WHEN A FOLDER HAS RECEIVED A LONG PRESS EVENT
- (void)handleLongPress:(UILongPressGestureRecognizer *)recognizer
{
if ([recognizer state] == UIGestureRecognizerStateBegan)
{
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Select an action" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Delete" otherButtonTitles:@"Edit", nil];
[actionSheet addGestureRecognizer:recognizer];
// SET THE SELECTED FOLDER'S ROW NUMBER AS THE ACTIONSHEET TAG. JUST A WAY OF LETTING THE DELETE METHOD KNOW WHICH FOLDER TO DELETE
[actionSheet showInView:self.view];
}
}
// GET THE SIZE OF THE FOLDER IMAGE AND SET EACH COLLECTION VIEW ITEM SIZE TO FIT
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"folder.png"]];
return CGSizeMake(image.size.width, image.size.height + 50);
}
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
{
return UIEdgeInsetsMake(10, 10, 90, 10);
}
@end
감사 handleLongPress:
에서
정말 좋은 답변입니다. 그게 내 문제를 해결했고 내가 가지고 있었던 몇 가지 다른 것들. 모든 도움에 많은 감사드립니다. – Typhoon101