我有一个应用程序，它在集合视图中显示来自 Flickr 照片流的最新 50 张图像。它在 iOS 6 上运行良好，但在 iOS 7 上崩溃。如果我卸载该应用程序并重新安装它，它在我第一次加载该视图时运行良好。当我退出该视图然后返回该视图时，它会崩溃。有任何想法吗？
这是我得到的错误：
由于未捕获的异常“NSInternalInconsistencyException”而终止应用程序，原因：“一个视图上有太多更新动画 - 一次限制为 15 个（;};层 = >）”
。H
#import <UIKit/UIKit.h>
#import <dispatch/dispatch.h>
#import "KFBFlickrPhotoManager.h"
#import "KFBImageDetailViewController.h"
@interface KFBFlickrViewController : UIViewController <NSURLConnectionDelegate,NSURLConnectionDataDelegate, UICollectionViewDataSource,UICollectionViewDelegate,FlickrPhotoDelegate, UIGestureRecognizerDelegate>
{
NSMutableArray *imageInfo;
}
@property (retain) NSMutableArray * imageInfo;
@property (retain) KFBFlickrPhotoManager * imageManager;
@property (retain) NSString * html;
@property (nonatomic, retain) NSString *apiKey;
@property (retain, nonatomic) IBOutlet UICollectionView *photoCollectionView;
@property (retain) KFBImageDetailViewController *imageDetailViewController;
@end
.m
#import "KFBFlickrViewController.h"
#import "KFBFlickrPhoto.h"
@interface KFBFlickrViewController ()
@end
@implementation KFBFlickrViewController
@synthesize apiKey=apiKey;
@synthesize photoCollectionView, imageManager, imageInfo,imageDetailViewController;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
apiKey = @"a70fe2e828e66660c74ce0a7c34a55aa";
NSString *urlString = [NSString stringWithFormat:@"http://api.flickr.com/services/rest/?method=flickr.photos.search&api_key=%@&per_page=50&user_id=52540720@N02&format=json&nojsoncallback=1", apiKey];
NSURL *url = [NSURL URLWithString:urlString];
imageInfo = [NSMutableArray array];
self.imageInfo = [[NSMutableArray alloc] init];
self.imageManager = [[KFBFlickrPhotoManager alloc] initWithURL:url delegate:self];
[imageManager process];
imageInfo = [NSMutableArray array];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(imageUpdated:) name:@"com.KFB.imageupdated" object:nil];
// Custom initialization
}
return self;
}
-(void)viewDidAppear:(BOOL)animated
{
//[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(imageUpdated:) name:@"com.KFB.imageupdated" object:nil];
}
-(void)viewDidDisappear:(BOOL)animated
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"com.razeware.imagegrabber.imageupdated" object:nil];
}
-(void)showFlickr
{
NSURL *url = [NSURL URLWithString:@"http://www.kyfb.com/photos"];
[[UIApplication sharedApplication] openURL:url];
}
-(void)viewDidLoad
{
[super viewDidLoad];
self.navigationItem.title = @"Photos";
UINib *cellNib = [UINib nibWithNibName:@"CVCell" bundle:nil];
[self.photoCollectionView registerNib:cellNib forCellWithReuseIdentifier:@"photoCell"];
UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
[flowLayout setItemSize:CGSizeMake(75, 75)];
[flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];
[flowLayout setSectionInset:UIEdgeInsetsMake(10, 10, 10, 10)];
[self.photoCollectionView setCollectionViewLayout:flowLayout];
UIBarButtonItem *openFlickr = [[UIBarButtonItem alloc] initWithTitle:@"More Photos" style:UIBarButtonItemStyleBordered target:self action:@selector(showFlickr)];
self.navigationItem.rightBarButtonItem = openFlickr;
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
return YES;
}
-(UICollectionViewCell*)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = @"photoCell";
UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
KFBFlickrPhoto * info = [imageInfo objectAtIndex:indexPath.row];
UIImageView *imageView = (UIImageView*)[cell viewWithTag:2020];
imageView.image = info.image;
return cell;
}
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
KFBFlickrPhoto *photo = [imageInfo objectAtIndex:indexPath.row];
self.imageDetailViewController = [[KFBImageDetailViewController alloc] initWithNibName:@"KFBImageDetailViewController" bundle:[NSBundle mainBundle]];
imageDetailViewController.photo = photo;
[self.navigationController pushViewController:imageDetailViewController animated:YES];
}
-(void)imagesAvailable:(NSArray *)images done:(BOOL)done {
NSLog(@"Image infos available: %d!", images.count);
NSMutableArray *indexPaths = [NSMutableArray arrayWithCapacity:images.count];
for(int i = imageInfo.count; i < imageInfo.count + images.count; ++i) {
NSIndexPath * indexPath = [NSIndexPath indexPathForRow:i inSection:0];
[indexPaths addObject:indexPath];
}
[imageInfo addObjectsFromArray:images];
[photoCollectionView insertItemsAtIndexPaths:indexPaths];
//[photoCollectionView insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationRight];
}
- (void)imageUpdated:(NSNotification *)notif {
UIImage *info = [notif object];
int row = [imageInfo indexOfObject:info];
NSIndexPath * indexPath = [NSIndexPath indexPathForRow:row inSection:0];
NSLog(@"Image for row %d updated!", row);
[photoCollectionView reloadItemsAtIndexPaths:[NSArray arrayWithObject:indexPath]];
//[photoCollectionView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 1;
}
-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return [imageInfo count];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end