ios - Add handles around UIImageView -

so have few uiimageview's can "spawn" on screen, , scale,rotate, , move using gesture recognizer. want add 2 things, simple line around uiimageview let user know view selected. , button around line if tapped delete view. i've tried https://www.cocoacontrols.com/controls/spuserresizableview , couldn't implement right way in swift.

i recommend creating simple uiview subclass contain uiimageview , uibutton (i don't quite understand want button positioned can setup constraints based on needs). subclass wrap whole functionality of 1 spawned imageview.

then:

creating delete action when uibutton tapped pretty straight forward.

creating selection effect done several approaches:

• you create uiview (with backgroundcolor equal selectedstatecolor) behind uiimageview (slightly bigger uiimageview) simulate select action

• you use uiimageview layer , play bordercolor / borderwidth this:

  func handletap(gesturerecognizer: uigesturerecognizer) {      // if >0 selected     let borderwidth : cgfloat = imageview.layer.borderwidth > 0.0 ? 0.0 : 4.0      // set border width     imageview.layer.bordercolor = uicolor.greencolor().cgcolor     imageview.layer.borderwidth = borderwidth  } 

• and option play cashapelayer (where you'd specify cgmutablepathref path of shapelayer) -> lots of options there - linewidth, stroke color, fillcolor, line patterns, ... etc

if simple line around uiimageview need recommend using layers because it's quite easy setup (just few lines of code).

hope helps :). please let me know if need more information (please more descriptive).

cheers!