Example usage for android.hardware.camera2 CameraCaptureSession.StateCallback CameraCaptureSession.StateCallback

Introduction

In this page you can find the example usage for android.hardware.camera2 CameraCaptureSession.StateCallback CameraCaptureSession.StateCallback.

Prototype

CameraCaptureSession.StateCallback

Source Link

Usage

From source file:com.microsoft.projectoxford.emotionsample.RecognizeActivity.java

protected void createCameraPreview() {
    try {// www  .  j a va2  s .  c o  m
        SurfaceTexture texture = textureView.getSurfaceTexture();
        assert texture != null;
        texture.setDefaultBufferSize(imageDimension.getWidth(), imageDimension.getHeight());
        Surface surface = new Surface(texture);
        captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
        captureRequestBuilder.addTarget(surface);
        cameraDevice.createCaptureSession(Arrays.asList(surface), new CameraCaptureSession.StateCallback() {
            @Override
            public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                //The camera is already closed
                if (null == cameraDevice) {
                    return;
                }
                // When the session is ready, we start displaying the preview.
                cameraCaptureSessions = cameraCaptureSession;
                updatePreview();
            }

            @Override
            public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
                Toast.makeText(RecognizeActivity.this, "Configuration change", Toast.LENGTH_SHORT).show();
            }
        }, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

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From source file:com.example.aschere.cdhprototype2.Camera2RawFragment.java

/**
 * Creates a new {@link CameraCaptureSession} for camera preview.
 * <p/>//from   w  w  w .j  a va 2  s. c  o m
 * Call this only with {@link #mCameraStateLock} held.
 */
private void createCameraPreviewSessionLocked() {
    try {
        Log.i(TAG, "create camera preview called");
        SurfaceTexture texture = new SurfaceTexture(2);

        // This is the output Surface we need to start preview.
        Surface surface = new Surface(texture);

        // We set up a CaptureRequest.Builder with the output Surface.
        if (mCameraDevice == null) {
            setUpCameraOutputs();
            openCamera();
        }
        if (mCameraDevice != null) {
            mPreviewRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
            mPreviewRequestBuilder.addTarget(surface);

            // Here, we create a CameraCaptureSession for camera preview.
            mCameraDevice.createCaptureSession(Arrays.asList(surface, mJpegImageReader.get().getSurface(),
                    mRawImageReader.get().getSurface()), new CameraCaptureSession.StateCallback() {
                        @Override
                        public void onConfigured(CameraCaptureSession cameraCaptureSession) {
                            synchronized (mCameraStateLock) {
                                // The camera is already closed
                                if (null == mCameraDevice) {
                                    return;
                                }

                                try {
                                    setup3AControlsLocked(mPreviewRequestBuilder);
                                    // Finally, we start displaying the camera preview.
                                    cameraCaptureSession.setRepeatingRequest(mPreviewRequestBuilder.build(),
                                            mPreCaptureCallback, mBackgroundHandler);
                                    mState = STATE_PREVIEW;
                                } catch (CameraAccessException | IllegalStateException e) {
                                    e.printStackTrace();
                                    return;
                                }
                                // When the session is ready, we start displaying the preview.
                                mCaptureSession = cameraCaptureSession;
                            }
                        }

                        @Override
                        public void onConfigureFailed(CameraCaptureSession cameraCaptureSession) {
                            showToast("Failed to configure camera.");
                        }
                    }, mBackgroundHandler);
        }
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

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