//switches between front and back cameras when button is clicked void SwitchCameraButtonTapped(object sender, EventArgs e) { //if camera isn't started if (!_isCameraStarted) { return; } if (cameraType == CameraFacing.Front) { cameraType = CameraFacing.Back; camera.StopPreview(); camera.Release(); camera = Android.Hardware.Camera.Open((int)cameraType); camera.SetPreviewTexture(surfaceTexture); PrepareAndStartCamera(); } else { cameraType = CameraFacing.Front; camera.StopPreview(); camera.Release(); camera = Android.Hardware.Camera.Open((int)cameraType); camera.SetPreviewTexture(surfaceTexture); PrepareAndStartCamera(); } }
public bool OnSurfaceTextureDestroyed(SurfaceTexture surface) { camera.StopPreview(); camera.Release(); return(true); }
private void FlashLight() { if (camera == null || mParams == null) { return; } if (!isFlashLight) { player.Start(); //mParams = camera.GetParameters(); //mParams.FlashMode = Parameters.FlashModeTorch; //camera.SetParameters(mParams); //camera.StartPreview(); //isFlashLight = true; //btnFlash.SetImageResource(Resource.Drawable.power_on); camera.Release(); camera = null; camera = Android.Hardware.Camera.Open(); Android.Hardware.Camera.Parameters mParams = camera.GetParameters(); mParams.FlashMode = (Android.Hardware.Camera.Parameters.FlashModeTorch); camera.SetParameters(mParams); var mPreviewTexture = new SurfaceTexture(0); camera.SetPreviewTexture(mPreviewTexture); camera.StartPreview(); btnFlash.SetImageResource(Resource.Drawable.power_on); isFlashLight = true; } else { //camera.Release(); //camera.StopPreview(); //camera = null; //player.Start(); //mParams = camera.GetParameters(); //mParams.FlashMode = Parameters.FlashModeOff; //camera.SetParameters(mParams); //camera.StartPreview(); //isFlashLight = false; //btnFlash.SetImageResource(Resource.Drawable.power_off); camera.Release(); camera = null; camera = Android.Hardware.Camera.Open(); Android.Hardware.Camera.Parameters mParams = camera.GetParameters(); mParams.FlashMode = (Android.Hardware.Camera.Parameters.FlashModeOff); camera.SetParameters(mParams); var mPreviewTexture = new SurfaceTexture(0); camera.SetPreviewTexture(mPreviewTexture); camera.StartPreview(); btnFlash.SetImageResource(Resource.Drawable.power_off); isFlashLight = false; } }
public bool OnSurfaceTextureDestroyed(SurfaceTexture surface) { if (camEnabled) { camera.StopPreview(); camera.Release(); cameraClosed = true; } return(true); }
private void SwitchCameraButton_Click(object sender, EventArgs e) { if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Lollipop) { string[] camPermissions = { Android.Manifest.Permission.Camera }; // Make sure we can use the camera if ((int)Android.OS.Build.VERSION.SdkInt >= 23 && Activity.CheckSelfPermission(camPermissions[0]) != (Permission.Granted)) { Toast.MakeText(Activity, AppResources.Camera_permissionNeeded, ToastLength.Long).Show(); Activity.RequestPermissions(camPermissions, CamPermReqId); return; } mCameraDevice.Close(); int newCamIndex = backCam ? 1 : 0; backCam = !backCam; try { OpenCamera(newCamIndex); } catch (System.Exception ex) { System.Console.WriteLine(ex); } } else { if (cameraType == CameraFacing.Front) { cameraType = CameraFacing.Back; camera.StopPreview(); camera.Release(); camera = Android.Hardware.Camera.Open((int)cameraType); camera.SetPreviewTexture(surfaceTexture); PrepareAndStartCamera1(); } else { cameraType = CameraFacing.Front; camera.StopPreview(); camera.Release(); camera = Android.Hardware.Camera.Open((int)cameraType); camera.SetPreviewTexture(surfaceTexture); PrepareAndStartCamera1(); } } }
public void ShutdownCamera() { if (camera == null) { return; } try { try { camera.StopPreview(); camera.SetNonMarshalingPreviewCallback(null); camera.SetPreviewDisplay(null); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine(ex.ToString()); } camera.Release(); camera = null; } catch (Exception e) { System.Diagnostics.Debug.WriteLine(e.ToString()); } }
protected override void OnDestroy() { camera?.StopPreview(); camera?.Release(); camera = null; base.OnDestroy(); }
public override void OnDestroy() { _camera.StopPreview(); _camera.Release(); _cameraReleased = true; base.OnDestroy(); }
public void ShutdownCamera() { if (Camera == null) { return; } try { try { Camera.StopPreview(); //Camera.SetPreviewDisplay(null); } catch (Exception ex) { //Android.Util.Log.Error(MobileBarcodeScanner.TAG, ex.ToString()); } Camera.Release(); Camera = null; } catch (Exception e) { //Android.Util.Log.Error(MobileBarcodeScanner.TAG, e.ToString()); } }
private async void TakePhotoButtonTapped(object sender, EventArgs e) { try { camera.StopPreview(); camera.Release(); var image = textureView.Bitmap; using (var imageStream = new MemoryStream()) { await image.CompressAsync(Bitmap.CompressFormat.Jpeg, 50, imageStream); image.Recycle(); imageBytes = imageStream.ToArray(); } var cea = await GetCardAsync(id); OnCardRead(cea); Finish(); } catch (Exception ex) { OnCardRead(new CardReadEventArgs(id, ex)); Finish(); } }
public void ShutdownCamera() { if (Camera == null) { return; } // camera release logic takes about 0.005 sec so there is no need in async releasing var perf = PerformanceCounter.Start(); try { try { Camera.SetPreviewCallback(null); Camera.SetPreviewDisplay(null); Camera.StopPreview(); } catch (Exception ex) { Android.Util.Log.Error(MobileBarcodeScanner.TAG, ex.ToString()); } Camera.Release(); Camera = null; } catch (Exception e) { Android.Util.Log.Error(MobileBarcodeScanner.TAG, e.ToString()); } PerformanceCounter.Stop(perf, "Shutdown camera took {0}ms"); }
public void SurfaceDestroyed(ISurfaceHolder holder) { // TODO Auto-generated method stub camera.StopPreview(); camera.Release(); camera = null; previewing = false; }
public bool OnSurfaceTextureDestroyed( Android.Graphics.SurfaceTexture surface) { _camera.StopPreview(); _camera.Release(); return(true); }
void SwitchCameraType() { if (Android.Hardware.Camera.NumberOfCameras != 2) { return; } camera.StopPreview(); camera.Release(); if (Element.CameraType == CameraType.Rear) { SetupLiveCameraStream(0); } else { SetupLiveCameraStream(1); } }
public void SurfaceDestroyed(ISurfaceHolder holder) { //stop the preview mCamera.StopPreview(); //release the camera mCamera.Release(); //unbind the camera from this object mCamera = null; }
public void SurfaceDestroyed(ISurfaceHolder holder) { if (_camera != null) { _camera.StopPreview(); _camera.Release(); _camera = null; } }
private void StopCamera() { if (_isRunning) { _camera?.StopPreview(); _camera?.Release(); _camera = null; _isRunning = false; } }
// Stop preview and release the camera private void stopPreviewAndReleaseCamera() { if (camera != null) { camera.SetPreviewCallbackWithBuffer(null); stopPreview(); camera.Release(); camera = null; } }
protected override void OnPause() { base.OnPause(); releaseMediaRecorder(); if (camera != null) { camera.Release(); } camera = null; GC.Collect(); }
public bool OnSurfaceTextureDestroyed(SurfaceTexture surface) { if (_camera == null) { return(true); } _orientationListener.Disable(); _camera.CancelAutoFocus(); _camera.StopPreview(); _camera.Release(); return(true); }
private void CameraClose(bool isPreviewClosing) { if (camera != null) { if (isPreviewClosing) { camera.StopPreview(); } camera.Release(); camera = null; } }
public void ShutdownCamera() { tokenSource.Cancel(); if (camera != null) { camera.SetPreviewCallback(null); camera.StopPreview(); camera.Release(); camera = null; } }
public void onPause() { if (inPreview) { camera.StopPreview(); } camera.Release(); camera = null; inPreview = false; base.OnPause(); }
public override void OnPause() { base.OnPause(); _camera?.Release(); _camera = null; _orientationListner.Disable(); _holder.RemoveCallback(this); _holder.Dispose(); _holder = null; }
public void SwitchCamera(object sender, EventArgs e) { if (_camera != null) { _camera.StopPreview(); _camera.Release(); _camera = null; } var cameraToSwitch = _cameraId == 0 ? 1 : 0; EnableCamera(cameraToSwitch); }
private void releaseCameraAndPreview() { if (mCamera != null) { mCamera.StopPreview(); mCamera.Release(); mCamera = null; } if (mPreview != null) { mPreview.DestroyDrawingCache(); mPreview.mCamera = null; } }
protected override void OnPause() { base.OnPause(); BinaryFormatter formatters = new BinaryFormatter(); using (Stream stream = File.Open(ImagePath + "lessons", FileMode.OpenOrCreate)) formatters.Serialize(stream, lessons); if (mCamera != null) { mPreview.PreviewCamera = null; mCamera.Release(); mCamera = null; } }
public void SurfaceCreated(ISurfaceHolder holder) { // The Surface has been created, acquire the camera and tell it where // to draw the preview. mCamera = Android.Hardware.Camera.Open(1); Log.Debug("", "camera opened!!!"); try { mCamera.SetPreviewDisplay(holder); } catch (Java.IO.IOException exception) { mCamera.Release(); mCamera = null; } }
public override void Dispose() { if (Camera != null) { Stop(); Camera.Release(); Camera.Dispose(); Camera = null; } if (Texture != null) { Texture.Release(); Texture.Dispose(); Texture = null; } }
public void SwitchCamera(object sender, EventArgs e) { _revertButton.Enabled = false; if (_camera != null) { _camera.StopPreview(); _camera.Release(); _camera = null; } var cameraToSwitch = _cameraId == 0 ? 1 : 0; EnableCamera(cameraToSwitch); _revertButton.Enabled = true; }
private bool CreateCamera(int cameraIndex) { #if !DEBUG try #endif { StopCamera(); _camera = Camera.Open(cameraIndex); _camera.SetPreviewDisplay(_surfaceHolder); if (OnCameraCreated != null) { if (_cameraInfo == null) _cameraInfo = new Android.Hardware.Camera.CameraInfo(); Camera.GetCameraInfo(cameraIndex, _cameraInfo); OnCameraCreated(this, new CameraInfoEventArgs(_camera, _cameraInfo)); } } #if !DEBUG catch (Exception excpt) { _camera.Release(); _camera = null; while (excpt.InnerException != null) excpt = excpt.InnerException; Report.Error(Context.PackageName, String.Format("Unable to create camera: {0}", excpt.Message)); return false; // TODO: add more exception handling logic here } #endif return true; }
public void SurfaceCreated(ISurfaceHolder holder) { // The Surface has been created, acquire the camera and tell it where // to draw. camera = Camera.Open (); try { camera.SetPreviewDisplay (holder); } catch (Exception) { camera.Release (); camera = null; // TODO: add more exception handling logic here } }