ios - UIImagePickerController 后退按钮/取消按钮不可见

Question

我用 UIImagePickerController 显示手机的图库，但上面没有返回/取消按钮。我怎样才能添加一个？

我所拥有的（在 UIViewController 内）：

func openGallery() {
  let picker = UIImagePickerController()
  picker.allowsEditing = false
  picker.sourceType = .photoLibrary
  picker.mediaTypes =
    UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
  present(picker, animated: true, completion: nil)
}

当我运行它时，我得到了画廊，但是通常在顶部没有取消按钮。

标签： iosswiftuiviewcontrolleruikituiimagepickercontroller

Answer 1

实现UIImagePickerControllerDelegate , UINavigationControllerDelegate并创建一个变量来分配 UIImagePickerControllervar imagePicker = UIImagePickerController() 和 set imagePicker.delegate = self。

func openGallary()
{
    imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary
    imagePicker.allowsEditing = true
    self.present(imagePicker, animated: true, completion: nil)
}