NSSplitView and autolayout

Question

How should I use auto layout constrains inside NSSplitView subview?

My NSSplitView subview has 3 subview: topPane, tableCont

Answer 1

I load all by a nib file and setTranslatesAutoresizingMaskIntoConstraints:NO afterwards.

So maybe you should first add by [mySplitView addSubview:myView]; your views and disable afterwards the translation of the autosizing mask to constraints and after this you add your contraint to myView.

EDIT:

Ok it seems I missunderstand the myView. You have to add the constraint to the subviews and not to the splitview.

[topPane addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[topPane(34)]" options:0 metrics:nil views:views]];

[bottomPane addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[bottomPane(24)]" options:0 metrics:nil views:views]];

You don't have to add edge constraints (the "|" in "V:|[topPane(34)]") because the subviews in NSSplitView are already autoresizing.

This lead to this e.g. for the topPane constraint:

NOTE: ignore the subview content, they are just placeholders