如何在使用相机快速拍摄照片后创建警报

Question

我有一个按钮，当我录音按钮相机，并采取pictures.after拍照，我需要显示警报到user.the警报部分不工作。在这里输入图像描述

Answer 1

这段代码适用于我，我能够解决我的问题。

func cameraAsscessRequest() {
        if AVCaptureDevice.authorizationStatus(for: AVMediaType.video) ==  AVAuthorizationStatus.authorized {

    } else {
        AVCaptureDevice.requestAccess(for: AVMediaType.video) { granted -> Void in

        }
    }
}

func image(){

    if !UIImagePickerController.isSourceTypeAvailable(.camera){
        let alertController = UIAlertController.init(title: nil, message: "Device has no camera.", preferredStyle: .alert)
        let okAction = UIAlertAction.init(title: "Alright", style: .default, handler: {(alert: UIAlertAction!) in
        })
        alertController.addAction(okAction)
        self.present(alertController, animated: true, completion: nil)
    }
    else{
        //other action
        imagePicker.sourceType = .camera
        imagePicker.delegate = self
        imagePicker.sourceType = UIImagePickerControllerSourceType.camera
        imagePicker.allowsEditing = false
        self.present(imagePicker,animated: true,completion: nil)
    }



}

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
   if let pickedimage =     info[UIImagePickerControllerOriginalImage] as?UIImage{
    let alert = UIAlertController(title: "",
                                  message: "Are you sure you want to upload invoice ?",
                                  preferredStyle: .alert)

    let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.default) {
        UIAlertAction in
        Print("Camera On")

    }
    let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel) {
        UIAlertAction in
        print("lll")
    }


    alert.addAction(cancelAction)
    alert.addAction(okAction)

    self.dismiss(animated: true, completion: nil)

    self.present(alert, animated: true, completion: nil)

    }
}

Answer 2

为此，您需要对AlertController的当前方法进行调整，然后显示您自己的方法，将用户输入转发到原始警报。反正我也不喜欢这个。

Answer 3

在添加操作后添加这一行：

self.present(alert, animated: true, completion: nil)