user3674231
user3674231

Reputation:

How to set the color of the image view in UIButton on type Custom?

I've tried everything and nothing is happening. It just stays black. Am I missing something? I tried using the UIButton's image view but it doesn't make a change.

lazy var addFriendButton: UIButton = {
    self.friendButton = UIButton(type: .Custom)


    self.friendButton.bounds = CGRectMake(0, 0, 120, 80)
    self.friendButton.backgroundColor = UIColor.redColor()
    self.friendButton.translatesAutoresizingMaskIntoConstraints = false
    self.friendButton.setTitle("Add Friend", forState: .Normal)
    self.friendButton.titleLabel?.font = UIFont(name: "HelveticaNeue", size: 12)
    self.friendButton.addTarget(self, action: #selector(addFriend), forControlEvents: .TouchUpInside)


    let addButtonImage = UIImage(named: "AddFriend")
    addButtonImage?.imageWithRenderingMode(.AlwaysTemplate)



    self.friendButton.setImage(addButtonImage, forState: .Normal)
    self.friendButton.setTitleColor(UIColor.darkGrayColor(), forState: .Normal)
    self.friendButton.imageView?.image = addButtonImage
    // Not working here
    self.friendButton.imageView?.tintColor = UIColor.whiteColor()
    return self.friendButton
}()

Upvotes: 1

Views: 3037

Answers (2)

Swifty
Swifty

Reputation: 3760

As it says in the documentation:

- withRenderingMode(_:)

Creates and returns a new image object with the specified rendering mode.

So just writing addButtonImage?.withRenderingMode(.alwaysTemplate) doesn't change the addButtonImage. The way to use it would be like this:

var addButtonImage = UIImage(named: "AddFriend")
addButtonImage = addButtonImage?.withRenderingMode(.alwaysTemplate)

or you can simply use this one line:

let addButtonImage = UIImage(named: "AddFriend")?.withRenderingMode(.alwaysTemplate)

Upvotes: 5

Jack Ngai
Jack Ngai

Reputation: 157

Sam_M's answer updated to Swift 3:

let addButtonImage = UIImage(named: "AddFriend")?.withRenderingMode(.alwaysTemplate)

Upvotes: 0

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