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    <p>Yes, you can position the dot as a fraction of the view's width. The NSLayoutConstraint method, constraintWithItem:attribute:relatedBy:toItem:attribute:multiplier:constant:, has that multiplier parameter that lets you use a fractional relationship between a superview and its subview. The superview's right edge will be the width of that view (the screen if its a full width view), so if you create a constraint like below, the dot will be positioned at a fractional distance along the line:</p> <pre><code>-(void)viewDidLoad { [super viewDidLoad]; [self.view removeConstraint:self.leftConDark]; [self.view removeConstraint:self.leftConLight]; NSLayoutConstraint *lcd = [NSLayoutConstraint constraintWithItem:self.darkButton attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeRight multiplier:.5 constant:0]; NSLayoutConstraint *lcl = [NSLayoutConstraint constraintWithItem:self.lightButton attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeRight multiplier:.9 constant:0]; [self.view addConstraints:@[lcd,lcl]]; } </code></pre> <p>In this example I'm positioning two UIButtons (info type dark and light). I added them in IB, and made IBOutlets to their constraints they have to the left side of the view (that's what the system gave me, it could have been to the right side -- it doesn't matter since you just delete them anyway. If you are making the dots in code, you wouldn't need to do this). In code I remove those constraints, then add new ones that will put the center of the buttons at 50% and 90% of the way across the screen.</p>
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    1. CO+1 I agree regarding the use of `multiplier` and `NSLayoutAttributeRight` (though I might do `NSLayoutAttributeCenterX` to `NSLayoutAttributeRight`, but Bernd undoubtedly gets the idea). Wonderful.
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    2. CO@Rob, thanks for the correction -- I sometimes forget what things get updated when as far as frames and bounds are concerned. I had thought that the view's NSLayoutAttributeRight wouldn't reflect the correct value upon rotation unless the code was in viewWillLayoutSubviews.
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    3. CO@Rob, thanks again -- no need for forgiveness, I'm still trying to wrap my head around layout constraints. I've updated the answer.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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