Masonry:https://github.com/Masonry/Masonry
Snappy:
PureLayout:https://github.com/smileyborg/PureLayout
Cartography:
UIView-AutoLayout:https://github.com/smileyborg/UIView-AutoLayout
Masonry:https://github.com/Masonry/Masonry
Snappy:
PureLayout:https://github.com/smileyborg/PureLayout
Cartography:
UIView-AutoLayout:https://github.com/smileyborg/UIView-AutoLayout