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iosobjective-cswiftuiimageviewcoordinates

UIImageView frame not placing correctly on the parent ImageView

I have a color palette imageview, in that I want to place a plus icon(imageView) according to the x and y-axis I am getting from the backend. If I get x = 0 and y = 0 the frame of the plus is placing correctly

x=0,y=0

For y axis if I set height of the color palette imageView to the plus icon's frame's y axis, the icon is not going to the actual (0,0)

x=0,y=width.

The code I used is below

 let cWidth = self.colorPalleteImageView.frame.size.width // 348
 let cHeight = self.colorPalleteImageView.frame.size.height // 378.5

 let imageView = UIImageView(image: appImages.roundPlusIcon.image)
 imageView.frame = CGRect(x: 0, y: cHeight, width: 22, height: 22)
 colorPalleteImageView.addSubview(imageView)

I am checking this with iPad 12.9 inch simulator. Am I missing anything to achieve that x=0 and y=0, If I give the width of the colorPaletteImage to the x-axis of plusIconImageView it is not going to end fo the x-axis, It stays before the end of the width of the imageview, I don't know why it is happening, Need help

Solution

  • You're using frame sizes before the frames are finished being set by auto-layout.

    I'd suggest using constraints, but if you want to stick to frame coordinates...

    • add the "round plus" icon imageView in viewDidLoad()
    • set its frame.origin in viewDidLayoutSubviews() or viewDidAppear()