Autolayout ScrollView programmatically swift - swift

Question

I need to set the layout of a ScrollView full-screen with autolayout. at the moment I have this code but not the full-height sect and I can not understand which variable to change. I have this code
func setControlsType(controlsType: ControlsType, bounds: CGRect, startingDim: CGFloat, scrolledDim: CGFloat) {
self.controlsType = controlsType
if Utils.isInPortraitState() {
/*self.startingFrame = CGRect(x: 0, y: bounds.height - startingDim, width: bounds.width, height: scrolledDim)
self.scrolledFrame = CGRect(x: 0, y: bounds.origin.y + bounds.height - scrolledDim, width: bounds.width, height: scrolledDim)*/
self.startingFrame = CGRect(x: 0, y: bounds.height, width: bounds.width, height: scrolledDim)
self.scrolledFrame = CGRect(x: 0, y: bounds.origin.y + bounds.height, width: bounds.width, height: scrolledDim)
} else {
self.startingFrame = CGRect(x: startingDim - scrolledDim, y: 0, width: scrolledDim, height: bounds.height)
self.scrolledFrame = CGRect(x: 0, y: 0, width: scrolledDim, height: bounds.height)
}
func setControls(type: ControlsType) {
let safeBounds = SafeAreaManager.letsDoIt(view: self, upon: .bounds)
/*let sDim = (Utils.isInPortraitState() ? safeBounds.height + (self.workbenchView.frame.origin.y + self.workbenchView.frame.size.height) : safeBounds.width + (self.workbenchView.frame.size.width + self.workbenchView.frame.width))*/
let sDim = CGFloat(0)
var scDim = CGFloat(0)
if Utils.isIPad() {
if Utils.isInPortraitState() {
scDim = safeBounds.height - (self.workbenchView.frame.origin.y + 2 * (self.workbenchView.frame.size.height/3))
} else {
scDim = self.workbenchView.frame.origin.x + self.workbenchView.frame.size.width/3
}
} else {
if Utils.isInPortraitState() {
scDim = safeBounds.height - self.workbenchView.frame.size.height
} else {
scDim = safeBounds.width - self.workbenchView.frame.size.width
}
}
self.controlsView.setControlsType(controlsType: type, bounds: safeBounds, startingDim: sDim, scrolledDim: scDim)
}

Answer 1

It seems that this code is not in your view controller so I see two options among others:
You pass your view and your scroll view to one of your function in the file that you shared above. Then you apply contraints to your scroll view so its frame match your view frame. This function will look like this:
func resizeScrollView(view: UIView, scrollView: UIScrollView) {
NSLayoutConstraint(item: scrollView, attribute: .top, relatedBy: .equal, toItem: view, attribute: .top, multiplier: 1, constant: 0).isActive = true
NSLayoutConstraint(item: scrollView, attribute: .trailing, relatedBy: .equal, toItem: view, attribute: .trailing, multiplier: 1, constant: 0).isActive = true
NSLayoutConstraint(item: scrollView, attribute: .bottom, relatedBy: .equal, toItem: view, attribute: .bottom, multiplier: 1, constant: 0).isActive = true
NSLayoutConstraint(item: scrollView, attribute: .leading, relatedBy: .equal, toItem: view, attribute: .leading, multiplier: 1, constant: 0).isActive = true
}
Or you can access the bounds property of the screen of your device via UIScreen and in this case the function will look like this:
func resizeScrollView(scrollView: UIScrollView) {
scrollView.bounds = UIScreen.main.bounds
}
Then you'll have to set the position of your scroll view in your view controller.