CameraView | well documented , high-level Android interface | Video Utils library
kandi X-RAY | CameraView Summary
kandi X-RAY | CameraView Summary
CameraView is a well documented, high-level library that makes capturing pictures and videos easy, addressing most of the common issues and needs, and still leaving you with flexibility where needed.
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Top functions reviewed by kandi - BETA
- Initializes the component
- Checks if the application needs permissions
- Requests permissions
- Disables this listener
- Generate the encoder frame
- Start recording
- Initializes the camera session
- Computes and returns the size of the frame processing in pixels
- Measure the size of the view
- Encode mode mode
- Start the camera
- Sets a video result
- Starts the photo
- Prevent pre draw
- Dispatches video recording end
- Called when encoding ends
- Releases the encoders
- Creates the surface view
- Draws the drawing
- Activates the auto - focus region
- Dispatch stream size changed
- Opens the FacingEngine
- Takes a picture
- Override this method to handle the state of the capture
- Starts the preview
- Take a preview frame
CameraView Key Features
CameraView Examples and Code Snippets
License : Strong Copyleft (CC BY-SA 4.0)
Copy//xaml
IsVisible = "{Binding IsVisible}"
public class ViewModel: INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
public void NotifyPropertyChanged([CallerMemberName] Str
enum MLNameModels: String, CaseIterable { //simplified just for the example
case audi = "Audi"
case bmw = "BMW"
}
struct ContentView : View {
@State var model : String //@State, so that the view knows to update
var b @Override
public void start(Stage stage) {
// 1. SubScene
// 3D node
SpringMesh spring = new SpringMesh(10, 2, 2, 8 * 2 * Math.PI, 200, 100, 0, 0);
spring.setCullFace(CullFace.NONE);
springclass BarCodeViewModel: ObservableObject {
@Published var cardNumber: String = ""
}
struct BarcodeView: View {
@ObservedObject var vm = BarCodeViewModel()
@State var isShowingCameraView = false
var body: some View {
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.image.ImageView;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import uk.co.caprica.vlcj.factory.MediaPlayerFactory;
import uk.co.public class AppController extends Application implements CameraXConfig.Provider {
@NonNull
@Override
public CameraXConfig getCameraXConfig() {
return Camera2Config.defaultConfig(this);
}
var lengthScale = 1000; //! Use viwer.model.getUnitString(), the model I loaded is in `mm`, and BCF camera definition is in `m`
var eye = new THREE.Vector3( 2.803843040759871 * lengthScale, 14.568845808384443 * lengthScale, 0.8249055320631package org.bytedeco.javacv.recordactivity;
import android.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.hardware.Camera;
import android.hardware.Camera.PreviewCallback;
import androilet session = AVCaptureSession()
lazy var vision = Vision.vision()
var barcodeDetector :VisionBarcodeDetector?
// Camera view
var cameraView: CameraView!
override func loadView()
{
cameraView = CameraView()
view = cameraView
}
o cameraView = (SurfaceView) v.findViewById(R.id.cameraView);
textResult = (TextView) v.findViewById(R.id.textView);
barcodeDetector = new BarcodeDetector.Builder(v.getContext())
.setBarcodeFormats(Barcode.QR_CODE)
Community Discussions
Trending Discussions on CameraView
QUESTION
I have a simple camera preview implementation:
...ANSWER
Answered 2022-Apr-01 at 06:29If you want to update layer frame in rotation, you need to create custom UIView and override layoutSubviews(). Inside layoutSubviews(), you need to update frame for sublayers.
The code will be as below.
QUESTION
My swiftui application structure looks like this
- Navigation View (enclosing the landing view that is a list view )
- On selection of a List item Navigation link directs to a Tab View with three tabs (default first tab)
When I use a sole standalone navigation link inside tab view screens to direct to another screen programatically, it navigates succesfully to the mentioned destination, but my binding doesn't work to come back to the previous screen.
Parent View
...ANSWER
Answered 2022-Feb-27 at 19:03I can reproduce your issue, quite strange ... seems like the change of showCameraPreviewView is not accepted because the view is still visible. But I found a workaround with dismiss:
EDIT for iOS 14:
QUESTION
im getting below errors in my code. how to solve this. appreciate your help on this
Error: Required named parameter 'path' must be provided.
Navigator.push(context, MaterialPageRoute(builder: (builder)=> CameraViewPage()));Context: Found this candidate, but the arguments don't match. const CameraViewPage({Key? key, required this.path}) : super(key: key);
Error: Too many positional arguments: 0 allowed, but 1 found. Try removing the extra positional arguments. await _cameraController.takePicture(path);
CameraSreen.dart
...ANSWER
Answered 2022-Feb-25 at 10:54As you can see:
QUESTION
Pretty simple problem that is making out to be harder to solve than it should: My gesture is simple not calling, at all. I am using a uiviewrepresentable that is displayed inside of a zstack. If i add a .tapgesture{} to CameraView() directly it works just fine. But i need to get the tap position
...ANSWER
Answered 2022-Feb-18 at 05:14The target should be the coordinator (which is a persistent entity, unlike the transient View), not self.
QUESTION
I have a function in my app to take a photo and then share that photo to your Instagram story. When the user takes a photo it is vertical and takes up the full screen in my app. Then when the user taps to share the photo to their Instagram story it flips it horizontal.
Here are images that show what is happening 1. The photo that is taken in the app, 2. The photo getting put horizontal in Instagram
The user starts on the 'CameraView' and here is that code:
...ANSWER
Answered 2022-Jan-22 at 08:40Super pumped to hear that you're using IGStoryKit (I made it!).
I've faced this issue too. You have to rotate your image before passing it onto IGStoryKit. This is an iOS "issue"
I use this code in one of my apps. Please try it out and let me know if it works for you too!
QUESTION
I'm getting an error every time I try to run 'react-native run-android' or './gradlew bundleRelease' for my React Native project.
...ANSWER
Answered 2022-Jan-17 at 19:38We also just ran into this. I believe JCenter is down right now. https://status.bintray.com/
QUESTION
I want to show a MJPEG stream in a UIImageView.
I have implemented the stream loading and send the images to a CameraViewModel via a delegate.
...ANSWER
Answered 2021-Nov-26 at 09:27In CameraView replace
QUESTION
https://caniuse.com/?search=getusermedia
Based on the link provided above, does Safari 15 support getUserMedia? I trying use it to access camera, when I test it on safari 15 it asked camera permission, after I allow the permission it still show me nothings. The link show Safari 15 is support getUserMedia/Stream API but not support Navigator API: getUserMedia. Below is my code, which one I should refer to? getUserMedia/Stream API or Navigator API: getUserMedia
...ANSWER
Answered 2021-Nov-18 at 12:41You definitely want navigator.mediaDevices.getUserMedia() method. It definitely works on iOS. The other one is deprecated. Apple is so late to the getUserMedia() party that they did not implement the deprecated API.
You can read about viewing the iOS console. You need to connect your iOS device to a mac, then use the Safari on that mac, to do that. It's a pain in the xxx neck. Explaining how is beyond the scope of a Stack Overflow answer.
Or you can use alert() for debugging.
You need to call cameraView.play() at the right moment. Here's the documentation.
It recommends doing something like this.
QUESTION
Currently I have a problem with cropping a rectangle from the camera preview. Basically I have setup the camera using fotoapparat where I have setup the scaleType of the preview to be ScaleType.CenterCrop.
Because this stretches the preview to fill the screen (I have a full screen portrait mode camera preview) I don't know the true width of the camera. So now when I want to cut out rectangle from the image based on the size of the rectangle shown on screen it does not crop correctly in the width.
I had a simular issue in swift (iOS) but was able to solve it using metadataOutputRectConverted(fromLayerRect:)
I'd assume i'll have to do something like find out what the true size is the camera preview layer so including whatever is cropped off to fill the screen and based on that calculate the new width of the rectangle relative to the camera preview.
See my previous question regarding this but for swift. Just like in this post (see screenshots) the width is not cropping as expected.
Current cropping method, where the bitmap is the image we receive after taking a photo, the cameraView is basically just the width and height of the screen and the cropRectFrame is the rectangle in the screen which I want to crop anything inside of it.
...ANSWER
Answered 2021-Oct-11 at 06:09I figured it out with the following code.
QUESTION
What I'm trying to do is take a picture, encode it to base64 and then send it in a dictionary to my server. When I send the dictionary over, sometimes it sends with the base64 and sometimes it sends without it even if I don't make any changes. Here's the code for the camera view
...ANSWER
Answered 2021-Sep-09 at 21:45The problem was that the delegate function func photoOutput() wasn't being called every time the picture was taken. I found that in func takePic(), if I put a Timer on self.session.stopRunning() it would fix the problem and call the delegate function every time but it would also cause another problem that would stop calling on self.isTaken.toggle(). To fix that I put the Timer in a DispatchQueue.main.async like so
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