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Is there any convenient way of replacing a view with another in Interface builder?
I find it somewhat cumbersome to have to reset all auto layout constraints when I for example want to swap an UILabel for a UITextView.
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Create a XIB FileRight click on the portion of the screen where your project's files are (view controller, storyboard, etc), and choose new file . Xcode will prompt you for which file type you'd like to create. Choose the View option under the user interface menu.
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.
To create a constraint between two views, Control-click one of the views and drag to the other. When you release the mouse, Interface Builder displays a HUD menu with a list of possible constraints.
By default, Interface Builder uses the size returned from the view’s intrinsicContentSize method. However, if you need a different size at design time, you can set a placeholder intrinsic content size. This placeholder affects the size of the view only in Interface Builder.
Interface Builder intelligently selects the set of constraints based on the items you are constraining and the direction of your drag gesture. If you drag more or less horizontally, you get options to set the horizontal spacing between the views, and options to vertically align the views.
Interface Builder automatically offers the top and bottom layout guides as options when creating constraints to the root view’s top or bottom edge as appropriate. If the layout guide is the view’s nearest neighbor, Interface Builder uses the guide by default.
Therefore, you need to position the views carefully before you draw the constraints. If you line up the views based on Interface Builder’s guidelines, you should end up with a reasonable set of constraints. If necessary, you can always edit the constraints afterward.
The "easiest" way to do this so far is to edit the raw xib file in a text editor and just replace the elements there.
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