NSScreencast Episode #134 Visual Format Language

Visual Format Language - NSScreencast

Visual Format Languageでconstraintsを記述

• AutoLayout
  • wordy(冗長な), cumbersome
• Visual Format Language
  • condensed format
• horizontal
  • default inferred
  • "|-[headlineView]-|"
  • "H:|-[headlineView]-|"
• vertical
  • "V:|-(topPadding)-[headlineView(headlineViewHeight)]-[leftView]-|"
• padding
  • default 20 point to edge
  • default 8 point between views
• [self.view addConstraints:
  • [NSLayoutConstraint constraintsWithVisualFormat:@
  • metrics:metrics
    • topPadding, headlineViewHeight
  • views:NSDictionaryOfVariableBindings(leftView, button)