Menu
In my storyboard file, I would like to add constraints, but the button to insert constraint is not shown! Any idea how to get it back?
861
To create constraints select the button and click the Align icon in the auto layout menu. A popover menu will appear, check both “Horizontal in container” and “Vertically in container” options to center the button on the screen. Then click the “Add 2 Constraints” button. Run the application.
Open Utilities panel on XCode and select Size Inspector. Here list of all constraints are listed for selected view in storyboard. Now, select constraint(s) you want to delete. Now hit Backspace key on keyboard and selected constraints are deleted.
Auto Layout defines your user interface using a series of constraints. Constraints typically represent a relationship between two views. Auto Layout then calculates the size and location of each view based on these constraints. This produces layouts that dynamically respond to both internal and external changes.
Make sure auto layout is enabled if you want to use the auto layout controls.
Autolayout Enabled: 
Autolayout Disabled: Note the controls are missing.
If you're looking to use auto layout with UIScrollView it should probably be asked in another question. But very briefly, when using auto layout, the place most people trip up is that UIScrollView determines its content size based on your constraints within the scrollview. If those are set right, you should be good to go.
Good luck.
105
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
