UIBarButtonSystemItem信息和统计

Question

我需要两个找不到的按钮：UINavigationBar的Info按钮和Stats按钮。有没有办法找到代表类似事物的按钮而不用画它们？

Answer 1

希望这可以帮助你：

 //for info button using custom UIButton
  UIButton *btn = [UIButton buttonWithType:UIButtonTypeInfoDark];
  self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:btn];

对于统计数据，没有此类默认按钮可用

Answer 2

Swift 3/4

let infoButton = UIButton(type: .infoDark)
infoButton.addTarget(self, action: #selector(navbarButtonPressed), for: .touchUpInside)
navigationItem.rightBarButtonItems?.append(UIBarButtonItem(customView: infoButton))