我正在创建从手机相机胶卷中选择的一系列图像 . 它们被存储但由于某种原因我不能让它们显示在我的collectionView中 .
在我的CollectionViewController.m中
- (void)viewDidLoad {
[self.photoCollectionView registerClass:[PhotoCell class] forCellWithReuseIdentifier:@"PhotoCell"];
self.assets = [[NSMutableArray alloc]init];
[super viewDidLoad];
- (NSInteger) collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return self.assets.count;
}
- (UICollectionViewCell *) collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
PhotoCell *cell = (PhotoCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"PhotoCell" forIndexPath:indexPath];
ALAsset *asset = self.assets[indexPath.row];
cell.asset = asset;
cell.backgroundColor = [UIColor redColor];
return cell;
}
- （void）imagePickerController：（UIImagePickerController *）picker didFinishPickingMediaWithInfo：（NSDictionary *）info {
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
NSMutableArray *tmpAssets = [@[] mutableCopy];
[tmpAssets addObject:image];
self.assets = tmpAssets;
self.testImage.image = [self.assets objectAtIndex:0];
[picker dismissViewControllerAnimated:YES completion:Nil];
[self.photoCollectionView reloadData];
}
在我的PhotoCell.h课程中
@interface PhotoCell : UICollectionViewCell
@property (nonatomic,strong) ALAsset *asset;
@end
在我的PhotoCell.m课程中
#import "PhotoCell.h"
@interface PhotoCell ()
@property(nonatomic, strong) IBOutlet UIImageView *photoImageView;
@end
@implementation PhotoCell
- (void) setAsset:(ALAsset *)asset
{
_asset = asset;
self.photoImageView.image = [UIImage imageWithCGImage:[asset thumbnail]];
}
@end
任何帮助都会非常感谢你 .