I am trying to have my application take a photo of an "intruder" when the wrong pin is entered into my application.
I have set up the UIImagePickerController(Below) and can make the application display the camera and take photos with no problem what so ever.
picker = UIImagePickerController() //make a clean controller
picker.delegate = self
picker.allowsEditing = false
picker.sourceType = UIImagePickerControllerSourceType.Camera
picker.cameraCaptureMode = .Photo
presentViewController(picker,animated: true,completion: nil)
Then i proceed to attempt this as to make the new set up for the picker
picker.showsCameraControls = false
I know that has to be set to false to call picker.takePicture()
Now I dont want to present the picker viewController and be able to call takePicture() but this is not hitting the delegate method of didFinishPickingMediaWithInfo.
I have tried using a custom overlay as well, but to no avail of 100% hiding the camera.
How do I go about not showing or displaying the camera on screen and being able to grab this picture of the front camera?
I have permission for access as well.
The other question posted on here of a similar topic does not solve this issue for help in swift.
Is the only way possible using AVFoundation?
If so, any help would be appreciated
In my view I have a UIView that I use to preview the camera. It's a lot smaller than the regular preview view (128x128). I initialise the UIImagePickerController like this:
self.picker = [[UIImagePickerController alloc] init];
self.picker.delegate = self;
self.picker.sourceType = UIImagePickerControllerSourceTypeCamera;
self.picker.cameraDevice = UIImagePickerControllerCameraDeviceFront;
self.picker.showsCameraControls = NO;
self.picker.view.frame = self.profilePictureView.frame;
I then use [v addSubview:self.picker.view]; to show the camera's preview within my custom UIVIew. So far this works as intended, I see the part of the camera preview that overlaps my custom view in that view (essentially masking the preview with my custom view).
Now I'm trying to get what is displayed in my UIView into a UIImage (resulting in a 128x128 image). I tried using the delegation methods, but I only get the full size image from the camera there. I also tried taking a screenshot from the view but I got lost...
How can I create a UIImage with the exact same content as the view I use to render the camera preview, including size, offset and ratio?
I'm trying to present a camera on the only the top half of my screen and my code isn't resizing the camera properly. I'm trying to add a view to the top half of my screen and then have the camera's cameraOverlayView property conform to that view's frame. Regardless of what I try however, the camera still appears in full screen mode. If someone can tell me what I'm doing wrong I'd really appreciate it. Thanks!
// Setting Up The Camera View
cameraView = UIView(frame: CGRectMake(0.0, 0.0, view.bounds.width, view.bounds.width))
view.addSubview(cameraView)
// Setting Up The Camera
var cam = UIImagePickerController()
cam.delegate = self
cam.allowsEditing = false
cam.videoMaximumDuration = 7
cam.videoQuality = UIImagePickerControllerQualityType.TypeMedium
cam.mediaTypes = UIImagePickerController.availableMediaTypesForSourceType(UIImagePickerControllerSourceType.Camera)!
cam.sourceType = UIImagePickerControllerSourceType.Camera
cam.cameraDevice = UIImagePickerControllerCameraDevice.Rear
cam.cameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Video
cam.cameraFlashMode = UIImagePickerControllerCameraFlashMode.Off
cam.showsCameraControls = true
cam.cameraOverlayView = cameraView
cam.cameraOverlayView?.frame = cameraView.frame
camera = cam
self.presentViewController(camera, animated: false, completion: nil)
I do not think what you want to do can be accomplished using a UIImagePickerController. The AVFoundation is what you want to use if you want complete customization of the camera. You can read about it here https://developer.apple.com/library/ios/documentation/AudioVideo/Conceptual/AVFoundationPG/Articles/04_MediaCapture.html#//apple_ref/doc/uid/TP40010188-CH5-SW2.
P.S. It is not the simplest framework to use
I use AVFoundation framework to display video from camera.
The code how i use it is usual:
session = [[AVCaptureSession alloc] init] ;
...
captureVideoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:session];
...
[cameraView.layer addSublayer:captureVideoPreviewLayer];
...
So i want to add zoom function to camera.
I have found 2 solutions how to implement zoom.
First : is to use CGAffineTransform:
cameraView.transform = CGAffineTransformMakeScale(x,y);
Second : is to put cameraView in the scroll view ,set up max and min scrolling and set this view as zooming view.
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
return cameraView;
}
What is the best way to make zooming better performance and quality? Are there any else solutions to make zoom? Maybe i missed some AVFoundation methods for zooming.
Thank you.
Well there is actually a GCFloat called setVideoScaleandCropFactor.
You can find the documentation here.
I'm not sure if this is just for still image output but I've been working on it and it does well if you set it to a gesture or a slider and let that control the float.
You can find a demo of it here.
Good stuff. Im trying to loop it so I can create a barcode scanner with a zoom. What im doing is rough though haha.
My Application uses camera, I would like to add overlay over the camera preview. For example, I want to use a picture frame when I use Camera, also I would like to add a custom bar for camera operations. Kindly help me to do the same.
You might be trying using UIImagePickerController. But I know this one solution to your problem. You can do it easily using AVCamCaptureManager and AVCamRecorder classes. Apple has a demo program build on its developer site here. It is named AVCam. In simple words what it does is when you click to open the camera, it calls the classes and methods which are responsible for opening the iPhone's camera and record video or capture audio. It calls the same classes which are called by UIImagePickerController. So your camera will open and start taking input.
Now, if you open the xib file of that AVCam project, you'll find a small UIView object. This view is responsible for displaying the camera's feed. You can resize that view as per the size you want and the camera's input will be displayed in that much area. You can also put the frame image around it as per your choice.
It worked for me when I wanted to resize the camera's input feed and capture photos. I hope it works for you as well.
Create a UIImagePickerController from code, adjust its properties, add an overlay onto it, and with you controller, control whatever you want on that overlay : custom controls, overlaying images, etc...
That gives something like this :
self.picker = [[UIImagePickerController alloc] init];
self.picker.sourceType = UIImagePickerControllerSourceTypeCamera;
self.picker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
self.picker.cameraDevice = UIImagePickerControllerCameraDeviceRear;
self.picker.showsCameraControls = NO;
self.picker.navigationBarHidden = YES;
self.picker.toolbarHidden = YES;
self.picker.wantsFullScreenLayout = YES;
// Insert the overlay
self.overlay = [[OverlayViewController alloc] initWithNibName:#"Overlay" bundle:nil];
self.overlay.pickerReference = self.picker;
self.picker.cameraOverlayView = self.overlay.view;
self.picker.delegate = self.overlay;
[self presentModalViewController:self.picker animated:NO];
OverlayViewController is the controller that you must write to control everything you add onto the overlay.
pickerReference is a property you can keep to send orders to the camera. For example, you could call the following from an IBAction coming from a UIButton placed onto the overlay :
[self.pickerReference takePicture];
Read the UIImagePickerController Class Reference, that's right in the documentation…
There are properties for this, especially the cameraOverlayView and showsCameraControls properties.
So you can hide the controls, provide a custom overlay view, and add subviews to this custom view to add custom buttons, frames, etc.
Swift 3 version for answer from Oliver:
self.picker = UIImagePickerController()
self.picker.sourceType = .camera
self.picker.cameraCaptureMode = .photo
self.picker.cameraDevice = .rear
self.picker.showsCameraControls = false
self.picker.isNavigationBarHidden = true
self.picker.isToolbarHidden = true
// Insert the overlay
self.overlayViewController = self.storyboard?.instantiateViewController(withIdentifier: "Overlay") as! OverlayViewController
self.picker.cameraOverlayView = self.overlayViewController.view
self.picker.delegate = self.overlayViewController
self.navigationController?.present(self.picker, animated: true, completion: nil)
OverlayViewController protocols:
class OverlayViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate