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iOS

Posted by Ben Bastow
Ben Bastow
24,657 Points

Setting a button as an image made in code?

hai! I have got a button that I have linked via a iboutlet and i wanted to set the image from the function I set but it isn't working and saying it won't work or something can you help please?

Here is the code in full:

import UIKit

class MasterViewController: UIViewController {

@IBOutlet weak var aButton: UIButton!

override func viewDidLoad() {

     aButton.setImage(Start(CGRect(x: 137, y: 269, width: 100, height: 100)),forState: UIControlState.Normal)
    super.viewDidLoad()

    // Do any additional setup after loading the view, typically from a nib.

}
override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

func Start(rect:CGRect){
    let ctx = UIGraphicsGetCurrentContext()
    let width = rect.width
    let height = rect.height
    var pstyleRightAlign = NSMutableParagraphStyle()
    pstyleRightAlign.alignment = NSTextAlignment.Right
    var pstyleLeftAlign = NSMutableParagraphStyle()
    pstyleLeftAlign.alignment = NSTextAlignment.Left
    var pstyleCenterAlign = NSMutableParagraphStyle()
    pstyleCenterAlign.alignment = NSTextAlignment.Center

    //Line_Copy
    CGContextSaveGState(ctx)
    CGContextMoveToPoint(ctx, 76.03999999999999*(width/124), 62.5*(height/124))
    CGContextAddCurveToPoint(ctx, 76.03999999999999*(width/124), 62.5*(height/124), 47.97*(width/124), 62.5*(height/124), 47.97*(width/124), 62.5*(height/124))
    CGContextAddCurveToPoint(ctx, 47.97*(width/124), 62.5*(height/124), 76.03999999999999*(width/124), 62.5*(height/124), 76.03999999999999*(width/124), 62.5*(height/124))
    CGContextSetStrokeColorWithColor(ctx, UIColor(hue: 0, saturation: 0, brightness: 1, alpha: 1).CGColor)
    CGContextSetLineWidth(ctx, 8*min(width/124, height/124))
    CGContextDrawPath(ctx, kCGPathStroke)
    CGContextRestoreGState(ctx)

    //Path
    CGContextSaveGState(ctx)
    CGContextMoveToPoint(ctx, 62*(width/124), 48.5*(height/124))
    CGContextAddCurveToPoint(ctx, 62*(width/124), 48.5*(height/124), 62*(width/124), 76.57*(height/124), 62*(width/124), 76.57133674621582*(height/124))
    CGContextAddCurveToPoint(ctx, 62*(width/124), 76.57*(height/124), 62*(width/124), 48.5*(height/124), 62*(width/124), 48.5*(height/124))
    CGContextSetStrokeColorWithColor(ctx, UIColor(hue: 0, saturation: 0, brightness: 1, alpha: 1).CGColor)
    CGContextSetLineWidth(ctx, 8*min(width/124, height/124))
    CGContextDrawPath(ctx, kCGPathStroke)
    CGContextRestoreGState(ctx)

    //Path
    CGContextSaveGState(ctx)
    CGContextMoveToPoint(ctx, 62*(width/124), 124*(height/124))
    CGContextAddCurveToPoint(ctx, 96.24*(width/124), 124*(height/124), 124*(width/124), 96.24*(height/124), 124*(width/124), 62*(height/124))
    CGContextAddCurveToPoint(ctx, 124*(width/124), 27.76*(height/124), 96.24*(width/124), 0*(height/124), 62*(width/124), 0*(height/124))
    CGContextAddCurveToPoint(ctx, 27.76*(width/124), 0*(height/124), 0*(width/124), 27.76*(height/124), 0*(width/124), 62*(height/124))
    CGContextAddCurveToPoint(ctx, 0*(width/124), 96.24*(height/124), 27.76*(width/124), 124*(height/124), 62*(width/124), 124*(height/124))
    CGContextSetStrokeColorWithColor(ctx, UIColor(hue: 0, saturation: 0, brightness: 1, alpha: 1).CGColor)
    CGContextSetLineWidth(ctx, 8*min(width/124, height/124))
    CGContextDrawPath(ctx, kCGPathStroke)
    CGContextRestoreGState(ctx)
}

}

The part I'm having trouble with is :

@IBOutlet weak var aButton: UIButton!

override func viewDidLoad() {

    aButton.setImage(Start(CGRect(x: 137, y: 269, width: 100, height: 100)),forState: UIControlState.Normal)

I would be grateful if you could help!!

what I am trying to do is to set the button that i have dragged onto the view as an image. and the image i have made was that function called start. but i don't know how to make start the image of the button.

Pasan Premaratne or Amit Bijlani Can you help? Im still really stuck on this oops >.<

1 Answer

agreatdaytocode
agreatdaytocode
24,757 Points
agreatdaytocode
agreatdaytocode
24,757 Points

Give this try and tell me if it works for you. 

let image = UIImage(named: "ImageName.png") as UIImage
var button   = UIButton.buttonWithType(UIButtonType.System) as UIButton
button.frame = CGRectMake(100, 100, 100, 100)
button .setBackgroundImage(image, forState: UIControlState.Normal)
button.addTarget(self, action: "Action:", forControlEvents:UIControlEvents.TouchUpInside)
menuView.addSubview(button)
Ben Bastow
Ben Bastow
24,657 Points

hello!! I tried this just now :) and it doesn't work either :p but what I am trying to do is to set the button that i have dragged onto the view as an image. and the image i have made was that function called start. but i don't know how to make start the image of the button.