autofocus

How do I stop my Google Chrome extension's default action to auto-focus the first link in my popup.html ? I know I could probably do some roundabout hack with JS or change the :focus CSS, but I think this is throwing off something else I'm trying to do and I'd prefer to stop the root cause of it. The easiest (and javascript free!) way is to simply add tabindex="-1" to any element which you don't want to receive automatic focus. link0ff Perhaps auto-focus was intended for a convenience, but often it does a disservice. Since I see no way to stop the root cause, I found some roundabouts. One is

I am using camera2 api for my custom camera. I implemented touch to focus. It is working fine. But when I'm trying to attach external lens, it can't find focus distance, I have to try several times. Native camera works perfectly even with the lens. What else should I consider? Any opinions? please guide. (For the further usage) I ended up the solution using samsung camera sdk . It is working perfectly 来源： https://stackoverflow.com/questions/42090124/searching-focus-keeps-failing-with-external-lens-camera2-api-in-android

I am creating a table view and a search bar by clicking on a button.But I need the search bar to appear at Auto Focus ( where the user enters text immediately with no need to click inside the search bar). How can I do that ? try this @IBOutlet weak var searchBar: UISearchBar! override func viewDidLoad() { super.viewDidLoad() searchBar.becomeFirstResponder() } This should do it. override func viewWillAppear(animated: Bool) { super.viewWillAppear(animated) searchController.active = true } ... extension GDSearchTableViewController: UISearchControllerDelegate { func didPresentSearchController

I am trying to set the camera autofocus ON ... but whenever i set setFocusMode the application crashes.. java.lang.RuntimeException: setParameters failed my code is : Camera.Parameters parameters = camera.getParameters(); parameters.setFlashMode(Parameters.FLASH_MODE_TORCH); Camera.Size size = getBestPreviewSize(width, height, parameters); Camera.Size pictureSize = getSmallestPictureSize(parameters); if (size != null && pictureSize != null) { parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO); parameters.setPreviewSize(size.width, size.height); parameters.setPictureSize

Autofocus is not working on the first AVCaptureSession when I create a second AVCaptureSession. The second session to be created is the one where autofocus works and the first created one does not autofocus. I would expect that either session would be able to auto focus when started after the other one is stopped in the same way the auto white balance and auto exposure work for both sessions. If you observe the log window with the sample code below you can see the key-value-observing messages coming through; but never the changing focus message when the top session is running. Sidenote:

For the Android API version 2.1 and higher, we can use context: getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_AUTOFOCUS) But before version 2.1, how can we perform the same operation? Is there anything like this that does not involve invoking Camera.open and then getParameters ? List<String> supportedFocusModes = camera.getParameters().getSupportedFocusModes(); boolean hasAutoFocus = supportedFocusModes != null && supportedFocusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO) i'm guessing: Do not use the unknown constant. getPackageManager().hasSystemFeature

I am trying to develop an iPhone for Face recognition/detection. In my app i want to make my iPhone camera should be auto focused and auto capture. How to recognition the face from iPhone app? It is possible to auto focus the face and auto capture in our iPhone app. If it is possible can anyone please help to do this? I just want any suggestion/ideas and tutorials about that. Can you please help me? Thanks in advance. Core Image has a new CIFaceDetector to detect faces in real time; you can start with these examples to take an overview: SquareCam iOS Facial Recognition Easy Face detection with