Can't change default layoutMargins of view

Question

Since ios 8.0 views have additional layoutMargins which by default has an 8 points values for every side.

When I try to change margins in viewDidL

Answer 1

I used KVO to detect the view.layoutMargins changes. And I found that the view itself would change the layoutMargins after customise during layoutSubViews processing.

So just put your customise codes in viewDidLayoutSubviews method:

- (void)viewDidLayoutSubviews
{
    self.view.layoutMargins = UIEdgeInsetsMake(100.0f, 100.0f, 100.0f, 100.0f);
}

PS: Through these codes are OC, but I think it can also work for Swift. Hope this works for you!