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在通過CKAssets使用來自Cloudkit的數據後，我無法再呈現collectionview單元格。我以前使用加載在我桌面上的文件夾中的圖像進行初始測試。我現在使用Cloudkit，並使用這些相同的圖像通過CK儀表板創建了一些測試記錄。我成功地能夠查詢CK數據庫並檢索預期記錄。然後我改變了我的代碼來填充單元格的模型數據以使用CK數據。該數據以前來自本地檢索的圖像。從日誌記錄中我可以看到，我正在從CK成功獲取數據，包括圖像。我還可以從記錄中看到，我的自定義CV單元不再被啓動。從我所知道的來看，我的代碼看起來很好，基於我在網上看到的例子。Collectionview單元格不會使用CKAsset呈現
任何人都可以幫助我嗎？謝謝！
模型中的指定初始化...
- (instancetype)initImagesForSelection:(NSString *)selectionType {
self = [super init];
if (self) {
CKDatabase *publicDatabase = [[CKContainer defaultContainer] publicCloudDatabase];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ImageDescription = 'description'"];
CKQuery *query = [[CKQuery alloc] initWithRecordType:@"ImageData" predicate:predicate];
[publicDatabase performQuery:query inZoneWithID:nil completionHandler:^(NSArray *results, NSError *error) {
// handle the error
if (error) {
NSLog(@"Error: there was an error querying the cloud... %@", error);
} else {
// any results?
if ([results count] > 0) {
NSLog(@"Success querying the cloud for %lu results!!!", (unsigned long)[results count]);
for (CKRecord *record in results) {
ImageData *imageData = [[ImageData alloc] init];
CKAsset *imageAsset = record[@"Image"];
imageData.imageURL = imageAsset.fileURL;
NSLog(@"asset URL: %@", imageData.imageURL);
imageData.imageName = record[@"ImageName"];
//imageData.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:imageAsset.fileURL]];
imageData.image = [UIImage imageWithContentsOfFile:imageAsset.fileURL.path];
NSLog(@"image size height:%f, width:%f", imageData.image.size.height, imageData.image.size.width);
[self.imageDataArray addObject:imageData];
}
NSLog(@"imageDataArray size %lu", (unsigned long)[self.imageDataArray count]);
}
}
}];
}
return self;
}
的CollectionView視圖 - 控制從Cloudkit拉低數據之前的工作完美...
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell"; // string value identifier for cell reuse
ImageViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:CellIdentifier forIndexPath:indexPath];
NSLog(@"cellForItemAtIndexPath: section:%ld row:%ld", (long)indexPath.section, (long)indexPath.row);
cell.layer.borderWidth = 1.0;
cell.layer.borderColor = [UIColor grayColor].CGColor;
ImageData *imageData = [self.imageLoadManager imageDataForCell:indexPath.row];
cell.imageView.image = imageData.image;
cell.imageView.contentMode = UIViewContentModeScaleAspectFit;
return cell;
}