Debug view hierarchy does not render UI

Question

i'm trying to use the view hierarchy feature on xcode 6 to see the draggable layout of my app, but all i get is a blank area where it should be.

after trying out lots of suggestions from SO and other places, nothing works.

I have had the sim running with or without break points, different sim devices, different apps, but nothing works.

I know you're just supposed to click on the button while the app is being simulated and it's supposed to pop up, but when i do it the main interface with the button and options load along with all the elements in the debug navigator. just not the 3d UI itself.

thanks for any tips.

Answer 1

You can click in that view and drag by holding down the left mouse button. This gives you the 3D view.

Answer 2

It's not a fix, but when I had this issue I restarted Xcode and tried again a few more times it eventually worked for me.

Answer 3

There seems to be a recent issue as well which I've run into. When I press the button, I get an assertion failure:

Assertion failure in -[UITextView _firstBaselineOffsetFromTop]

There's an OpenRadar here with a workaround which worked for me of attaching a "useless" constraint" in ViewController.m:

if ([NSLayoutConstraint respondsToSelector:@selector(activateConstraints:)]) {
    TEXTVIEWNAME.translatesAutoresizingMaskIntoConstraints = NO;
    [NSLayoutConstraint activateConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[TEXTVIEWNAME]-|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(TEXTVIEWNAME)]];
}