Ios 如何在调用UIImagePickerController后隐藏状态栏？

在iOS 10.2上调用UIImagePickerController后，我想隐藏状态栏

有几个问题的答案不适用于Swift 3.0

建议的答案如下：

• 扩展UINavigationController以覆盖preferStatusBarHidden，因为UIImagePickerController是UINavigationController的子类

所以我试着：

extension UINavigationController{
    open override var prefersStatusBarHidden: Bool{
        return true
    }
}

extension UIImagePickerController{
    open override var prefersStatusBarHidden: Bool{
        return true
    }
}

class MyImagePickerController: UIImagePickerController{
    override var prefersStatusBarHidden: Bool{
        return true
    }
}

• 扩展UIImagePickerController以覆盖prefersStatusBarHidden

所以我试着：

extension UINavigationController{
    open override var prefersStatusBarHidden: Bool{
        return true
    }
}

extension UIImagePickerController{
    open override var prefersStatusBarHidden: Bool{
        return true
    }
}

class MyImagePickerController: UIImagePickerController{
    override var prefersStatusBarHidden: Bool{
        return true
    }
}

• 创建并使用UIImagePicker的子类

所以我试着：

extension UINavigationController{
    open override var prefersStatusBarHidden: Bool{
        return true
    }
}

extension UIImagePickerController{
    open override var prefersStatusBarHidden: Bool{
        return true
    }
}

class MyImagePickerController: UIImagePickerController{
    override var prefersStatusBarHidden: Bool{
        return true
    }
}

---

上述解决方案对我都不起作用。

您正在添加

UINavigationControllerDelegate

的委托方法，如下所示

class PersonalInfoVC: UIViewController, UIImagePickerControllerDelegate , UINavigationControllerDelegate{

添加代理并隐藏其中的状态栏。

func navigationController(_ navigationController: UINavigationController, willShow viewController: UIViewController, animated: Bool){
    UIApplication.shared.isStatusBarHidden = true
}

---

状态栏可以通过以下扩展名永久隐藏到

UIImagePickerController

：

extension UIImagePickerController {
    open override var childViewControllerForStatusBarHidden: UIViewController? {
        return nil
    }

    open override var prefersStatusBarHidden: Bool {
        return true
    }
}

---

这适用于iOS 10上的Swift 3。

当显示视图控制器UIImagePickerController时，状态栏可以隐藏和显示。Swift 4+

picker.dismiss(animated: true, completion: {
    if let statusBar = UIApplication.shared.value(forKey: "statusBar") as? UIView {
        statusBar.isHidden =  true
    }
})

picker.dismiss(animated: true, completion: {
    if let statusBar = UIApplication.shared.value(forKey: "statusBar") as? UIView {
        statusBar.isHidden =  false
    }
})

---

这些答案在iOS 13上对我都不起作用。在演示图像选择器之前，我必须在演示视图控制器上设置此标志：

viewController.modalPresentationCapturesStatusBarAppearance=YES；
[viewController presentViewController:picker动画：是完成：无]；

UIApplication.shared.isStatusBarHidden=true已从iOS 9.0中删除。你能更新你的答案吗。