横向锁定相机

Question

我有一个应用程序，让用户可以用相机拍照。我想只允许用户拍摄风景照片，而不是肖像。我有办法锁定相机方向吗？

以下是我正在使用的代码：

func takePhoto() {
    //If a camera is available on this device, go to camera.  If not, present an error message.
    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera){
        //Create the image picker controller
        imagePicker = UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.sourceType = .Camera

        //Present the camera view
        presentViewController(imagePicker, animated: true, completion: nil)
    }
    else {
        let alert = UIAlertController(title: "Error", message: "There is no camera available", preferredStyle: UIAlertControllerStyle.Alert)
        alert.addAction(UIAlertAction(title: "OK", style: .Default, handler: {(alertAction) in alert.dismissViewControllerAnimated(true, completion: nil)}))
        self.presentViewController(alert, animated: true, completion: nil)
    }
}

Answer 1

  

我有办法锁定相机方向吗

相机是物理对象。它的方向与您的应用程序无关。 “锁定相机方向”的唯一方法是伸出并抓住用户的手腕，这样他/她就无法转动设备。