如何知道要删除哪个子层？

Question

I have the bellow line of code which is meant to prevent a problem where a sublayer is displayed over another posts content. The method in which this line is excited is called at the time of the user exiting a post.

newBaseP3FolderLayer.layer.sublayers?.remove(at: 1)

But now, I think as a result of this code, there are instances where another video will all of a sudden cover all other images.

I noticed that this only happens when the number of subLayers is 14. (This also may be true for numbers above this) while printing the number of sublayers when leaving a post I noticed that the code worked fine (for vals like 10 or 11 and 12) until the number of subviews went to 14.

How can I fix this?

Answer 1

This would be better approach

for sublayer in sublayers {
    if sublayer.name == "yourLayerName" {
        sublayer.removeFromSuperlayer()
    }
}

Answer 2

Store the reference to the layer you want to remove while creating it and use that reference to remove the layer from its superLayer , ie

var yourLayer: CALayer?

view.layer.sublayers?.forEach({ (layer) in
    if layer == yourLayer {
        yourLayer?.removeFromSuperlayer()
    }
})

Answer 3

If you don't want to use layer names, try logging this:

NSLog(@"%@",self.playerLayer.player.currentItem.asset);

You will see the following:

AVURLAsset: 0x60000063bac0, URL = file:///Temp/Loops/088_JB_HD.mov

You can then identify the actual name and URL of your asset.