How to change an UIImageView into a custom cell

问题

I have an UIImageView in a custom cell (@IBOutlet var imageSquadra: UIImageView!) and in the TableViewController I initialize this imageView:

let squadra = DataManager.sharedInstance.arrayCori[indexPath.row]

        cell.imageSquadra.image = squadra.sfondo1

Now I need to change the image touching up inside the cell with an other image, and return to the previous image touching up into an other cell. Is it hard to do?

EDIT: or if was easier, would be fine apply a CAFilter like a shadow to the image.

回答1:

On your tableview set multiple selection to NO:

tableView.allowsMultipleSelection = false

Then you want something like this on your TableViewController

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

   // Store which indexPath has been selected in a global variable

   tableView.reloadData()
}

func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
    tableView.reloadData()
}

In your cellForRow method you want something like...

cell.useSelectedImage(indexPath == storedIndexPath)

And finally in your custom cell class you want to add a method that does similar to this

func useSelectedImage(bool:useSelected)
{
     self.myImage = useSelected ? "selectedImage" : "unselectedImage"
}

My Swift is a bit rusty... but you should be able to get the general idea from what I've done here

来源：https://stackoverflow.com/questions/32376856/how-to-change-an-uiimageview-into-a-custom-cell

标签

swift

uiimageview

uiimage

cell