How do I change UIView Size

Question

I have trouble with modifying my UIView height at launch   I have to UIView and I want one to be screen size   70 and the other to fill the gap   here is what I have    IBOutlet weak var questionFrame  UIView    IBOutlet weak var answerFrame  UIView   let screenSize CGRect   UIScreen mainScreen   bounds   and   questionFrame frame size height   screenSize height   0 70  answerFrame frame size height   screenSize height   0 30   It has no effect on the app during run time  I use autolayout but I only have margins constraints     Am I doing it all wrong

User · Answer

I know that there is already a solution to this question, but I found an alternative to this issue and maybe it could help someone.

I was having trouble with setting the frame of my sub view because certain values were referring to its position within the main view. So if you don't want to update your frame by changing the whole frame via CGRect, you can simply change a value of the frame and then update it.

// keep reference to you frames
var questionView = questionFrame.frame
var answerView = answerFrame.frame

// update the values of the copy        
questionView.size.height = CGFloat(screenSize.height * 0.70)
answerView.size.height = CGFloat(screenSize.height * 0.30)

// set the frames to the new frames
questionFrame.frame = questionView
answerFrame.frame = answerView

User · Answer

Hi create this extends if you want  Update 2021 Swift 5 Create File Extends Swift and add this code  add import foundation where you want change height  extension UIView               Get Set x Position          - parameter x  CGFloat            var x CGFloat           get               return self frame origin x                   set               self frame origin x   newValue                             Get Set y Position          - parameter y  CGFloat            var y CGFloat           get               return self frame origin y                   set               self frame origin y   newValue                             Get Set Height          - parameter height  CGFloat            var height CGFloat           get               return self frame size height                   set               self frame size height   newValue                             Get Set Width          - parameter width  CGFloat            var width CGFloat           get               return self frame size width                   set               self frame size width   newValue                    For Use  inherits Of UIView  inheritsOfUIView height   100 button height   100 print view height

User · Answer

Assigning questionFrame frame size height  screenSize height   0 30 will not reflect anything in the view  because it is a get-only property  If you want to change the frame of questionFrame you can use the below code   questionFrame frame   CGRect x  0  y  0  width  0  height  screenSize height   0 70

User · Answer

This can be achieved in various methods in Swift 3 0 Worked on Latest version MAY- 2019  Directly assign the Height  amp  Width values for a view   userView frame size height   0  userView frame size width   10   Assign the CGRect for the Frame  userView frame    CGRect x 0  y  0  width 0  height 0    Method Details      CGRect x  point of X  y  point of Y  width  Width of View  height    Height of View    Using an Extension method for CGRECT  Add following extension code in any swift file    extension CGRect        init   x CGFloat    y CGFloat    w CGFloat    h CGFloat             self init x x  y y  width w  height h            Use the following code anywhere in your application for the view to set the size parameters  userView frame    CGRect 1  1  20  45

User · Answer

For a progress bar kind of thing  in Swift 4   I follow these steps    I create a UIView outlet    IBOutlet var progressBar  UIView  Then a property to increase its width value after a user action var progressBarWidth  Int   your value Then for the increase decrease of the progress progressBar frame size width   CGFloat progressBarWidth  And finally in the IBACtion method I add progressBarWidth    your value for auto increase the width every time user touches a button

User · Answer

Here you go  this should work   questionFrame frame   CGRectMake 0   0  self view frame width  self view frame height   0 7    answerFrame frame    CGRectMake 0   self view frame height   0 7  self view frame width  self view frame height   0 3

User · Answer

Swift 3 and Swift 4   myView frame   CGRect x  0  y  0  width  0  height  0

User · Answer

You can do this in Interface Builder   1  Control-drag from a frame view  e g  questionFrame  to main View  in the pop-up select  Equal heights    2 Then go to size inspector of the frame  click edit  Equal height to Superview  constraint  set the multiplier to 0 7 and hit return   You ll see that constraint has changed from  Equal height to     to  Proportional height to

[uiview] How do I change UIView Size?

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