Method: ProMotion::ScreenModule#set_nav_bar_button

Defined in:
lib/ProMotion/screens/_screen_module.rb

#set_nav_bar_button(side, args = {}) ⇒ Object

If you call set_nav_bar_button with a nil title and system_icon: UIBarButtonSystemItemAdd (or any other system icon), the button is initialized with a barButtonSystemItem instead of a title.



79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
 
# File 'lib/ProMotion/screens/_screen_module.rb', line 79

def set_nav_bar_button(side, args={})
  args[:style]  ||= UIBarButtonItemStyleBordered
  args[:target] ||= self
  args[:action] ||= nil

  button = case args[:title]
    when String
      UIBarButtonItem.alloc.initWithTitle(args[:title], style: args[:style], target: args[:target], action: args[:action])
    when UIImage
      UIBarButtonItem.alloc.initWithImage(args[:title], style: args[:style], target: args[:target], action: args[:action])
    when Symbol, NilClass
      UIBarButtonItem.alloc.initWithBarButtonSystemItem(args[:system_icon], target: args[:target], action: args[:action]) if args[:system_icon]
    when UIBarButtonItem
      args[:title]
    else
      PM.logger.error("Please supply a title string, a UIImage or :system.")
  end

  self.navigationItem.leftBarButtonItem = button if side == :left
  self.navigationItem.rightBarButtonItem = button if side == :right

  button
end