ManWithBear

1. Symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints.
2. Add debug command:
 - ObjC: po [[UIWindow keyWindow] _autolayoutTrace]
 - Swift: expr -l objc++ -O -- [[UIWindow keyWindow] _autolayoutTrace]
3. Colorfy bad views:
expr ((UIView *)0x7f9ea3d43410).backgroundColor = [UIColor redColor]

ManWithBear

extension String {
  func toEnum<Enum: RawRepresentable where Enum.RawValue == String>() -> Enum? {
    return Enum(rawValue: self)
  }
}

enum Segue: String {
  case Foo
  case Bar
}

ManWithBear

import UIKit

private weak var _currentFirstResponder: UIResponder? = nil

extension UIResponder {
    class func mwb_firstResponder() -> UIResponder? {
        _currentFirstResponder = nil
        // If you trying send action to nil, it will automatically called on first responder
        UIApplication.shared.sendAction(#selector(mwb_findFirstResponder), to: nil, from: nil, for: nil)
        return _currentFirstResponder

ManWithBear

git checkout develop
git merge --squash feature/...
git commit -am '#issue comment'
git push origin develop
git branch -D feature/...
git push origin :feature/...

In result flow like:
* <1234567> 2016-05-06 [dev1] (HEAD, origin/develop, develop) version bump
| * <1234567> 2016-05-06 [dev1] (tag: 1.52, master, origin/master) Merge branch 'develop'