我使用UIImagePickerController通过iPhone的摄像头拍照.
我想展示"拍照"和" Select 照片".
我的密码
imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .camera
//imagePicker.sourceType = .PhotoLibrary
presentViewController(imagePicker, animated: true, completion: nil)
我试着用imagePicker.sourceType = .Camera和imagePicker.sourceType = .PhotoLibrary来做这件事，但没用...
非常感谢.
导入UIImagePickerControllerDelegate并创建一个变量以分配UIImagePickerController
创建一个操作表，以显示"摄像头"和"照片库"的选项.
在按钮上单击操作:
@IBAction func buttonOnClick(_ sender: UIButton)
{
self.btnEdit.setTitleColor(UIColor.white, for: .normal)
self.btnEdit.isUserInteractionEnabled = true
let alert = UIAlertController(title: "Choose Image", message: nil, preferredStyle: .actionSheet)
alert.addAction(UIAlertAction(title: "Camera", style: .default, handler: { _ in
self.openCamera()
}))
alert.addAction(UIAlertAction(title: "Gallery", style: .default, handler: { _ in
self.openGallary()
}))
alert.addAction(UIAlertAction.init(title: "Cancel", style: .cancel, handler: nil))
/*If you want work actionsheet on ipad
then you have to use popoverPresentationController to present the actionsheet,
otherwise app will crash on iPad */
switch UIDevice.current.userInterfaceIdiom {
case .pad:
alert.popoverPresentationController?.sourceView = sender
alert.popoverPresentationController?.sourceRect = sender.bounds
alert.popoverPresentationController?.permittedArrowDirections = .up
default:
break
}
self.present(alert, animated: true, completion: nil)
}
func openCamera()
{
if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerController.SourceType.camera))
{
imagePicker.sourceType = UIImagePickerController.SourceType.camera
imagePicker.allowsEditing = true
self.present(imagePicker, animated: true, completion: nil)
}
else
{
let alert = UIAlertController(title: "Warning", message: "You don't have camera", preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
self.present(alert, animated: true, completion: nil)
}
}
func openGallary()
{
imagePicker.sourceType = UIImagePickerController.SourceType.photoLibrary
imagePicker.allowsEditing = true
self.present(imagePicker, animated: true, completion: nil)
}