swiftvisual-format-language

Centering Horizontal in visual format language

I have 3 labels which I have placed against each other like in this picture:

enter image description here

However right now they are placed against the left side, I wan't them to be placed in the center horizontal. Here is the visual format code for their horizontal placing:

let horizontalConstraints = NSLayoutConstraint.constraintsWithVisualFormat(
            "H:|[label][label2][label3]|",
            options: [],
            metrics: nil,
            views: views)

However whatever I test I can't get them to center, any thoughts?

Solution

  • If you want to make it center horizontally/vertically both as i understand from the image you can make it like this: 

    // Center horizontally
var constraints = NSLayoutConstraint.constraintsWithVisualFormat(
    "V:[superview]-(<=1)-[label2]",
    options: NSLayoutFormatOptions.AlignAllCenterX,
    metrics: nil,
    views: ["superview":view,"label2":label2])

view.addConstraints(constraints)

// Center vertically
constraints = NSLayoutConstraint.constraintsWithVisualFormat(
    "H:[superview]-(<=1)-[label1][label2][label3]",
    options: NSLayoutFormatOptions.AlignAllCenterY,
    metrics: nil,
    views: ["superview":view, "label1":label1,"label2":label2,"label3":label3])

view.addConstraints(constraints)

    so it will be look like this: enter image description here