android.hardware.Camera.setDisplayOrientation()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中android.hardware.Camera.setDisplayOrientation()方法的一些代码示例，展示了Camera.setDisplayOrientation()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Camera.setDisplayOrientation()方法的具体详情如下：
包路径：android.hardware.Camera
类名称：Camera
方法名：setDisplayOrientation

Camera.setDisplayOrientation介绍

暂无

代码示例

代码示例来源：origin: journeyapps/zxing-android-embedded

private void setCameraDisplayOrientation(int rotation) {
  camera.setDisplayOrientation(rotation);
}

代码示例来源：origin: LaiFeng-Android/SopCastComponent

private static void setOrientation(CameraData cameraData, boolean isLandscape, Camera camera) {
  int orientation = getDisplayOrientation(cameraData.cameraID);
  if(isLandscape) {
    orientation = orientation - 90;
  }
  camera.setDisplayOrientation(orientation);
}

代码示例来源：origin: TommyLemon/APIJSON

/**
 * Sets the camera up to take preview images which are used for both preview and decoding.
 * We detect the preview format here so that buildLuminanceSource() can build an appropriate
 * LuminanceSource subclass. In the future we may want to force YUV420SP as it's the smallest,
 * and the planar Y can be used for barcode scanning without a copy in some cases.
 */
void setDesiredCameraParameters(Camera camera) {
  Camera.Parameters parameters = camera.getParameters();
  Log.d(TAG, "Setting preview size: " + cameraResolution);
  parameters.setPreviewSize(cameraResolution.x, cameraResolution.y);
  setFlash(parameters);
  setZoom(parameters);
  //setSharpness(parameters);
  //modify here
  camera.setDisplayOrientation(90);
  camera.setParameters(parameters);
}

代码示例来源：origin: yipianfengye/android-zxingLibrary

/**
 * Sets the camera up to take preview images which are used for both preview and decoding.
 * We detect the preview format here so that buildLuminanceSource() can build an appropriate
 * LuminanceSource subclass. In the future we may want to force YUV420SP as it's the smallest,
 * and the planar Y can be used for barcode scanning without a copy in some cases.
 */
void setDesiredCameraParameters(Camera camera) {
  Camera.Parameters parameters = camera.getParameters();
  Log.d(TAG, "Setting preview size: " + cameraResolution);
  parameters.setPreviewSize(cameraResolution.x, cameraResolution.y);
  setFlash(parameters);
  setZoom(parameters);
  //setSharpness(parameters);
  //modify here
  camera.setDisplayOrientation(90);
  camera.setParameters(parameters);
}

代码示例来源：origin: TommyLemon/Android-ZBLibrary

/**
 * Sets the camera up to take preview images which are used for both preview and decoding.
 * We detect the preview format here so that buildLuminanceSource() can build an appropriate
 * LuminanceSource subclass. In the future we may want to force YUV420SP as it's the smallest,
 * and the planar Y can be used for barcode scanning without a copy in some cases.
 */
void setDesiredCameraParameters(Camera camera) {
  Camera.Parameters parameters = camera.getParameters();
  Log.d(TAG, "Setting preview size: " + cameraResolution);
  parameters.setPreviewSize(cameraResolution.x, cameraResolution.y);
  setFlash(parameters);
  setZoom(parameters);
  //setSharpness(parameters);
  //modify here
  camera.setDisplayOrientation(90);
  camera.setParameters(parameters);
}

代码示例来源：origin: daniulive/SmarterStreaming

private void setCameraDisplayOrientation(Activity activity, int cameraId, android.hardware.Camera camera) {
  android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
  android.hardware.Camera.getCameraInfo(cameraId, info);
  int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
  int degrees = 0;
  switch (rotation) {
    case Surface.ROTATION_0:
      degrees = 0;
      break;
    case Surface.ROTATION_90:
      degrees = 90;
      break;
    case Surface.ROTATION_180:
      degrees = 180;
      break;
    case Surface.ROTATION_270:
      degrees = 270;
      break;
  }
  int result;
  if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
    result = (info.orientation + degrees) % 360;
    result = (360 - result) % 360;
  } else {
    // back-facing  
    result = (info.orientation - degrees + 360) % 360;
  }
  Log.i(TAG, "curDegree: " + result);
  camera.setDisplayOrientation(result);
}

代码示例来源：origin: daniulive/SmarterStreaming

camera.setDisplayOrientation (result);

代码示例来源：origin: vondear/RxTool

@Override
void setDisplayOrientation(int displayOrientation) {
  if (mDisplayOrientation == displayOrientation) {
    return;
  }
  mDisplayOrientation = displayOrientation;
  if (isCameraOpened()) {
    mCameraParameters.setRotation(calcCameraRotation(displayOrientation));
    mCamera.setParameters(mCameraParameters);
    final boolean needsToStopPreview = mShowingPreview && Build.VERSION.SDK_INT < 14;
    if (needsToStopPreview) {
      mCamera.stopPreview();
    }
    mCamera.setDisplayOrientation(calcDisplayOrientation(displayOrientation));
    if (needsToStopPreview) {
      mCamera.startPreview();
    }
  }
}

代码示例来源：origin: stackoverflow.com

parameters.setPreviewSize(mPreviewSize.width, mPreviewSize.height);
mCamera.setParameters(parameters);
mCamera.setDisplayOrientation(90);
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();

代码示例来源：origin: stackoverflow.com

camera.setDisplayOrientation(result);

代码示例来源：origin: google/cameraview

@Override
void setDisplayOrientation(int displayOrientation) {
  if (mDisplayOrientation == displayOrientation) {
    return;
  }
  mDisplayOrientation = displayOrientation;
  if (isCameraOpened()) {
    mCameraParameters.setRotation(calcCameraRotation(displayOrientation));
    mCamera.setParameters(mCameraParameters);
    final boolean needsToStopPreview = mShowingPreview && Build.VERSION.SDK_INT < 14;
    if (needsToStopPreview) {
      mCamera.stopPreview();
    }
    mCamera.setDisplayOrientation(calcDisplayOrientation(displayOrientation));
    if (needsToStopPreview) {
      mCamera.startPreview();
    }
  }
}

代码示例来源：origin: JZ-Darkal/AndroidHttpCapture

camera.setDisplayOrientation(90);

代码示例来源：origin: googlesamples/android-vision

camera.setDisplayOrientation(displayAngle);
parameters.setRotation(angle);

代码示例来源：origin: googlesamples/android-vision

camera.setDisplayOrientation(displayAngle);
parameters.setRotation(angle);

代码示例来源：origin: googlesamples/android-vision

camera.setDisplayOrientation(displayAngle);
parameters.setRotation(angle);

代码示例来源：origin: dm77/barcodescanner

public void showCameraPreview() {
  if(mCameraWrapper != null) {
    try {
      getHolder().addCallback(this);
      mPreviewing = true;
      setupCameraParameters();
      mCameraWrapper.mCamera.setPreviewDisplay(getHolder());
      mCameraWrapper.mCamera.setDisplayOrientation(getDisplayOrientation());
      mCameraWrapper.mCamera.setOneShotPreviewCallback(mPreviewCallback);
      mCameraWrapper.mCamera.startPreview();
      if(mAutoFocus) {
        if (mSurfaceCreated) { // check if surface created before using autofocus
          safeAutoFocus();
        } else {
          scheduleAutoFocus(); // wait 1 sec and then do check again
        }
      }
    } catch (Exception e) {
      Log.e(TAG, e.toString(), e);
    }
  }
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testDisplayOrientation() {
 camera.setDisplayOrientation(180);
 assertThat(shadowCamera.getDisplayOrientation()).isEqualTo(180);
}

代码示例来源：origin: robolectric/robolectric

@Test
public void testSetDisplayOrientationUpdatesCameraInfos() {
 addBackCamera();
 addFrontCamera();
 camera = Camera.open(1);
 camera.setDisplayOrientation(180);
 Camera.CameraInfo cameraQuery = new Camera.CameraInfo();
 Camera.getCameraInfo(ShadowCamera.getLastOpenedCameraId(), cameraQuery);
 assertThat(cameraQuery.orientation).isEqualTo(180);
}

代码示例来源：origin: vondear/RxTool

private void openCamera() {
  if (mCamera != null) {
    releaseCamera();
  }
  mCamera = Camera.open(mCameraId);
  mCameraParameters = mCamera.getParameters();
  // Supported preview sizes
  mPreviewSizes.clear();
  for (Camera.Size size : mCameraParameters.getSupportedPreviewSizes()) {
    mPreviewSizes.add(new Size(size.width, size.height));
  }
  // Supported picture sizes;
  mPictureSizes.clear();
  for (Camera.Size size : mCameraParameters.getSupportedPictureSizes()) {
    mPictureSizes.add(new Size(size.width, size.height));
  }
  // AspectRatio
  if (mAspectRatio == null) {
    mAspectRatio = Constants.DEFAULT_ASPECT_RATIO;
  }
  adjustCameraParameters();
  mCamera.setDisplayOrientation(calcDisplayOrientation(mDisplayOrientation));
  mCallback.onCameraOpened();
}

代码示例来源：origin: google/cameraview

private void openCamera() {
  if (mCamera != null) {
    releaseCamera();
  }
  mCamera = Camera.open(mCameraId);
  mCameraParameters = mCamera.getParameters();
  // Supported preview sizes
  mPreviewSizes.clear();
  for (Camera.Size size : mCameraParameters.getSupportedPreviewSizes()) {
    mPreviewSizes.add(new Size(size.width, size.height));
  }
  // Supported picture sizes;
  mPictureSizes.clear();
  for (Camera.Size size : mCameraParameters.getSupportedPictureSizes()) {
    mPictureSizes.add(new Size(size.width, size.height));
  }
  // AspectRatio
  if (mAspectRatio == null) {
    mAspectRatio = Constants.DEFAULT_ASPECT_RATIO;
  }
  adjustCameraParameters();
  mCamera.setDisplayOrientation(calcDisplayOrientation(mDisplayOrientation));
  mCallback.onCameraOpened();
}

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