我得到了一个数组，其中包含从相机获得的所有图像。它们保存在我的 coreData 中。如果用户拍摄新照片，该照片将保存在核心数据中，然后我用 coreData 图像替换普通数组数据。因此，如果我返回到 Collection View ，则仅显示第一张和最后一张图像。当我打印图像[indexpath.item]时，我得到了图像。但它们没有显示在单元格中。我在单元格中为 imageView 有一个自定义类，并且 imageView 有约束，因此图像不能超出我认为的可见区域。 我期待在您的帮助下解决这个问题。谢谢。
这是相机捕获的代码:
func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage!, editingInfo: [NSObject : AnyObject]!) {
photoImage.image = image
print(images)
addPhotoLabel.removeFromSuperview()
if(isEdit == false)
{
let context = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
let entinity = NSEntityDescription.entityForName("Image", inManagedObjectContext: context)
let newImage = Image(entity: entinity!, insertIntoManagedObjectContext: context)
newImage.image = UIImageJPEGRepresentation(image, 1)
do {
try context.save()
} catch let error as NSError {
print(error)
}
images.removeAll()
let request = NSFetchRequest()
request.entity = entinity
let fetched = try? context.executeFetchRequest(request)
if fetched != nil {
let imagesS = fetched!.map { UIImage(data: ($0 as! Image).image!)}
images.appendContentsOf(imagesS)
}
}
self.dismissViewControllerAnimated(true, completion: nil);
}
这是我创建单元格的代码:
override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
//1
let cell : FlickrPhotoCell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath) as! FlickrPhotoCell
if(searchBarActive == true)
{
cell.nameLabel.text = researchResults[indexPath.item]
cell.imageView.image = sFunc_imageFixOrientation(resultImages[indexPath.item])
}
else
{
cell.nameLabel.text = names[indexPath.item]
let imageT : UIImage = images[indexPath.item]!
cell.imageView.image = images[indexPath.item]
print(images[indexPath.item])
}
cell.nameLabel.hidden = false
cell.frame.size = CGSizeMake(UIScreen.mainScreen().bounds.width/2 , UIScreen.mainScreen().bounds.width/2)
cell.imageView.frame = cell.frame
cell.backgroundColor = UIColor.clearColor()
cell.layer.borderColor = themeColor.CGColor
cell.layer.borderWidth = 4
cell.layer.cornerRadius = CGFloat(10.0)
cell.placeHolderName.frame.size = CGSize(width: cell.frame.width, height: cell.frame.height/4)
return cell
}
最佳答案
您可以尝试将 cell.imageView.frame = cell.frame 更改为 cell.imageView.frame.size = cell.frame.size
关于ios - 图像未显示在我的 Collection View 单元格中。 iOS(快速)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38792898/