I’m having trouble trying to achieve some very basic layout behavior with Auto Layout. My view controller looks like this in IB: The top label is the title label, I don’t know how many lines it will be. I need the title label to display all lines of text. I also need the other two … Read more
This question already has answers here: How do I animate constraint changes? (12 answers) Closed 6 years ago. I am trying to animate up some views so that they are blocked by the giant keyboard in landscape. It works well if I simply animate the frames, but others have suggested that this is counter-productive and … Read more
If I have a UIButton arranged using autolayout, its size adjusts nicely to fit its content. If I set an image as button.image, the instrinsic size again seems to account for this. However, if I tweak the titleEdgeInsets of the button, the layout does not account for this and instead truncates the button title. How … Read more
I’m trying to get self sizing UICollectionViewCells working with Auto Layout, but I can’t seem to get the cells to size themselves to the content. I’m having trouble understanding how the cell’s size is updated from the contents of what’s inside the cell’s contentView. Here’s the setup I’ve tried: Custom UICollectionViewCell with a UITextView in … Read more
I know that the auto layout chain consists in basically 3 different process. updating constraints layout views (here is where we get calculation of frames) display What’s is not totally clear to me is the inner difference between -setNeedsLayout and -setNeedsUpdateConstraints. From Apple Docs: setNeedsLayout Call this method on your application’s main thread when you … Read more
I am Working with autolayout and constraints and found there is a Constrain to margins option in Xcode 6 which was not present in Xcode 5 and is checked by default. I created a test project then I added a UITableView on a ViewController with the frame set to the same size as view and … Read more
Let’s say I have added more views in UIStackView which can be displayed, how I can make the UIStackView scroll? 21 Answers 21
I’m seeing an error appear in my debugger log: Will attempt to recover by breaking constraint <NSLayoutConstraint:0x191f0920 H:[MPKnockoutButton:0x17a876b0]-(34)-[MPDetailSlider:0x17a8bc50](LTR)> Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger. The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful. How do I trap on that call? It does not … Read more
I have a custom view that’s not getting layoutSubview messages during animation. I have a view that fills the screen. It has a custom subview at the bottom of the screen that correctly resizes in Interface Builder if I change the height of the nav bar. layoutSubviews is called when the view is created, but … Read more
Auto Layout is making my life difficult. In theory, it was going to be really useful when I switched, but I seem to fight it all of the time. I’ve made a demo project to try to find help. Does anyone know how to make the spaces between views increase or decrease evenly whenever the … Read more
