ios - "Add New Constraints" why -16 on the left and right, and not 0? -
ive noticed since xcode 6 , introduction of ios8 when go pin uiview type fill frame checkbox has -16 left , right, why not 0 . because want 0 spacing. wondering -16 come from? apple suggest margin inside uiview of 16pt inside. apple put prevent labels, images, etc.. in edges of screen. if want in edge have 2 ways 1-. add constraints -16 work, don't 2-. uncheck constraint margin, , have 0 this happened on main uiview i recommend uncheck 'constraint margin' if want view on both edges