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UIView-Positioning

UIView+Positioning is a Swift Extension which provides easy shorthand methods to defining the frame properties (width, height, x, y) of any UIView based object in an easy fashion, as well as extra helpful properties and methods.

USAGE

Just use the properties x, y, width, height or use origin and size to kill two birds with one stone ;-)

let btnTest     = UIButton()        // Or any other view

btnTest.width   = 250
btnTest.height  = 100

btnTest.y      -= 100
btnTest.x      += 35

btnTest.centerX = 20
btnTest.centerY = 15

btnTest.size    = CGSize(width: 150, height: 70)
btnTest.origin  = CGPoint(x: 25, y: 10)

print(btnTest.lastSubviewOnX?.x)  // X value of the object with the largest X value
print(btnTest.lastSubviewOnY?.y)  // Y value of the object with the largest Y value

btnTest.centerToParent()          // Centers button to its parent view, if exists

Here's another short example of using centerToParent and the Fibonacci Series to create multiple subviewed squares

var currentView                 = self.view
var currentSize: CGFloat        = 300

for i in 0...12 {
    let newView                 = UIView()
    newView.size                = CGSize(width: currentSize, height: currentSize)
    newView.backgroundColor     = UIColor.random
    currentView?.addSubview(newView)
    newView.centerToParent()

    currentView                 = newView
    currentSize                -= CGFloat(self.fibonacci(i+6) / 10)
}

Will result in this:

Fibonacci Views

AVAILABLE PROPERTIES & METHODS

  • x, y, origin - Positioning Shorthand

  • width, height, size - Sizing Shorthand

  • left, bottom, top, right - Representing X and Y values of the different sides of the view

  • centerX, centerY - Shorthand for the X and Y of the View's Center

  • boundsWidth, boundsHeight - Shorthand for the width and height of the View's bounds

  • boundsX, boundsY - Shorthand for the X and Y position of the View's bounds

  • lastSubviewOnX, lastSubviewOnY - Returns the Subview with the height X or Y value (closest to the right or closest to the bottom)

  • centerToParent - Center the current view relatively to his superview, if one exists

INSTALLATION

Add the following line to your Podfile:

pod 'UIView+Positioning'

and then run:

$ pod install

PORTS

LICENSE

Copyright (C) 2013 Developed by Shai Mishali

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.