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NavigationBarとStatusBarの表示・非表示を動的に切り替える

Last updated at Posted at 2015-08-19

iOS7とiOS8で共通のコードで動的にNavigationBarとStatusBarの表示・非表示を切り替える処理に詰まったのでまとめました。

  • Info.plistの"View controller-based status bar"はNOを指定
  • UIStatusBarAnimationの値はお好みで
ViewController.swift
func navigationBarAndStatusBarHidden(hidden: Bool, animated: Bool)
{
    if let nv = navigationController {

        if nv.navigationBarHidden == hidden {
            return
        }

        let application = UIApplication.sharedApplication()

        if (hidden) {
            // 隠す
            nv.setNavigationBarHidden(hidden, animated: animated)
            application.setStatusBarHidden(hidden, withAnimation: animated ? .Slide : .None)
        } else {
            // 表示する
            application.setStatusBarHidden(hidden, withAnimation: animated ? .Slide : .None)
            nv.setNavigationBarHidden(hidden, animated: animated)
        }
    }
}
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