So I have a self made menu bar at the bottom of my ViewController that I need to keep constrained to the bottom of the screen. Between the navigation bar and the bottom bar I want a scroll view so I inserted a UIScrollView and within that scroll view I put a UIView. I did this because I was getting an error that was addressed with this thread:
UIScrollView Scrollable Content Size Ambiguity
So I have some labels that adjust in size based upon the text being used for the labels. I want the UIScrollView and also the associated UIView to adjust based upon how long the UILabels are. Right now I have it where the labels go below the bottom bar but the view isn't scrolling. Here is my code:
//
// ItemViewController.swift
//
import UIKit
import Parse
class ItemViewController: UIViewController {
@IBOutlet weak var menuButton: UIButton!
@IBOutlet weak var mainImage: UIImageView!
@IBOutlet weak var innerView: UIView!
@IBOutlet weak var scrollView: UIScrollView!
@IBOutlet weak var heading1: UILabel!
@IBOutlet weak var body1: UILabel!
@IBOutlet weak var heading2: UILabel!
@IBOutlet weak var body2: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
for var y = 0; y < detailsHeadings.count; y++ {
switch y {
case 0:
heading1.text = detailsHeadings[y]
body1.text = details[heading1.text!]
let numLines = calcLines(body1.text!)
body1.numberOfLines = numLines!
break;
case 1:
heading2.text = detailsHeadings[y]
body2.text = details[heading2.text!]
let numLines = calcLines(body2.text!)
body2.numberOfLines = numLines!
break;
default:
break;
}
}
//none of the below worked
scrollView.sizeToFit()
scrollView.sizeThatFits(CGSize(width: 310, height: 700))
innerView.sizeThatFits(CGSize(width: 310, height: 700))
innerView.frame = CGRect(x: 0, y: 0, width: 320, height: 700)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func calcLines(textString: String) -> Int? {
let text = textString
// cast text to NSString so we can use sizeWithAttributes
var myText = text as NSString
//Set attributes
var attributes = [NSFontAttributeName : UIFont.systemFontOfSize(12)]
//Calculate the size of your UILabel by using the systemfont and the paragraph we created before. Edit the font and replace it with yours if you use another
var labelSize = myText.boundingRectWithSize(CGSizeMake(body1.bounds.width, CGFloat.max), options: NSStringDrawingOptions.UsesLineFragmentOrigin, attributes: attributes, context: nil)
//Now we return the amount of lines using the ceil method
var lines = ceil(CGFloat(labelSize.height) / body1.font.lineHeight)
println(lines)
let linesInt: Int = Int(lines)
return linesInt
}
}
Does anyone have any idea how to achieve this? Any help would be greatly appreciated.
