private void doSetTorch(Camera.Parameters parameters, boolean newSetting, boolean safeMode) { CameraConfigurationUtils.setTorch(parameters, newSetting); SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); if (!safeMode) { CameraConfigurationUtils.setBestExposure(parameters, newSetting); } }
private void doSetTorch(Camera.Parameters parameters, boolean newSetting, boolean safeMode) { CameraConfigurationUtils.setTorch(parameters, newSetting); SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); if (!safeMode && !prefs.getBoolean(PreferencesActivity.KEY_DISABLE_EXPOSURE, true)) { CameraConfigurationUtils.setBestExposure(parameters, newSetting); } }
void setDesiredCameraParameters(OpenCamera camera, boolean safeMode) { Camera theCamera = camera.getCamera(); Camera.Parameters parameters = theCamera.getParameters(); // theCamera.setDisplayOrientation(90);//add 这句代码作用是旋转镜头90度,使相机预览方向正确显示 if (parameters == null) { Log.w( TAG, "Device error: no camera parameters are available. Proceeding without configuration."); return; } Log.i(TAG, "Initial camera parameters: " + parameters.flatten()); if (safeMode) { Log.w(TAG, "In camera config safe mode -- most settings will not be honored"); } SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); initializeTorch(parameters, prefs, safeMode); CameraConfigurationUtils.setFocus(parameters, true, true, safeMode); if (!safeMode) { CameraConfigurationUtils.setBarcodeSceneMode(parameters); CameraConfigurationUtils.setVideoStabilization(parameters); CameraConfigurationUtils.setFocusArea(parameters); CameraConfigurationUtils.setMetering(parameters); } parameters.setPreviewSize(bestPreviewSize.x, bestPreviewSize.y); theCamera.setParameters(parameters); theCamera.setDisplayOrientation(cwRotationFromDisplayToCamera); Camera.Parameters afterParameters = theCamera.getParameters(); Camera.Size afterSize = afterParameters.getPreviewSize(); if (afterSize != null && (bestPreviewSize.x != afterSize.width || bestPreviewSize.y != afterSize.height)) { Log.w( TAG, "Camera said it supported preview size " + bestPreviewSize.x + 'x' + bestPreviewSize.y + ", but after setting it, preview size is " + afterSize.width + 'x' + afterSize.height); bestPreviewSize.x = afterSize.width; bestPreviewSize.y = afterSize.height; } }
void setDesiredCameraParameters(Camera camera, boolean safeMode) { Camera.Parameters parameters = camera.getParameters(); if (parameters == null) { Log.w( TAG, "Device error: no camera parameters are available. Proceeding without configuration."); return; } initializeTorch(parameters, safeMode); CameraConfigurationUtils.setFocus(parameters, true, true, safeMode); if (!safeMode) { CameraConfigurationUtils.setBarcodeSceneMode(parameters); CameraConfigurationUtils.setVideoStabilization(parameters); CameraConfigurationUtils.setFocusArea(parameters); CameraConfigurationUtils.setMetering(parameters); } parameters.setPreviewSize(cameraResolution.x, cameraResolution.y); Log.i(TAG, "Final camera parameters: " + parameters.flatten()); camera.setParameters(parameters); Camera.Parameters afterParameters = camera.getParameters(); Camera.Size afterSize = afterParameters.getPreviewSize(); if (afterSize != null && (cameraResolution.x != afterSize.width || cameraResolution.y != afterSize.height)) { Log.w( TAG, "Camera said it supported preview size " + cameraResolution.x + 'x' + cameraResolution.y + ", but after setting it, preview size is " + afterSize.width + 'x' + afterSize.height); cameraResolution.x = afterSize.width; cameraResolution.y = afterSize.height; } camera.setDisplayOrientation(90); }
/** Reads, one time, values from the camera that are needed by the app. */ @SuppressLint("NewApi") void initFromCameraParameters(Camera camera) { Camera.Parameters parameters = camera.getParameters(); WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display display = manager.getDefaultDisplay(); Point theScreenResolution = new Point(); display.getSize(theScreenResolution); screenResolution = theScreenResolution; Log.i(TAG, "Screen resolution: " + screenResolution); cameraResolution = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, screenResolution); Log.i(TAG, "Camera resolution: " + cameraResolution); }
/** Reads, one time, values from the camera that are needed by the app. */ void initFromCameraParameters(Camera camera) { Camera.Parameters parameters = camera.getParameters(); WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display display = manager.getDefaultDisplay(); Point theScreenResolution = new Point(); theScreenResolution = getDisplaySize(display); screenResolution = theScreenResolution; Log.i(TAG, "Screen resolution: " + screenResolution); Point screenResolutionForCamera = new Point(); screenResolutionForCamera.x = screenResolution.x; screenResolutionForCamera.y = screenResolution.y; if (screenResolution.x < screenResolution.y) { screenResolutionForCamera.x = screenResolution.y; screenResolutionForCamera.y = screenResolution.x; } cameraResolution = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, screenResolution); Log.i(TAG, "Camera resolution x: " + cameraResolution.x); Log.i(TAG, "Camera resolution y: " + cameraResolution.y); }
/** Reads, one time, values from the camera that are needed by the app. */ void initFromCameraParameters(OpenCamera camera) { Camera.Parameters parameters = camera.getCamera().getParameters(); WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); Display display = manager.getDefaultDisplay(); int displayRotation = display.getRotation(); int cwRotationFromNaturalToDisplay; switch (displayRotation) { case Surface.ROTATION_0: cwRotationFromNaturalToDisplay = 0; break; case Surface.ROTATION_90: cwRotationFromNaturalToDisplay = 90; break; case Surface.ROTATION_180: cwRotationFromNaturalToDisplay = 180; break; case Surface.ROTATION_270: cwRotationFromNaturalToDisplay = 270; break; default: // Have seen this return incorrect values like -90 if (displayRotation % 90 == 0) { cwRotationFromNaturalToDisplay = (360 + displayRotation) % 360; } else { throw new IllegalArgumentException("Bad rotation: " + displayRotation); } } Log.i(TAG, "Display at: " + cwRotationFromNaturalToDisplay); int cwRotationFromNaturalToCamera = camera.getOrientation(); Log.i(TAG, "Camera at: " + cwRotationFromNaturalToCamera); // Still not 100% sure about this. But acts like we need to flip this: if (camera.getFacing() == CameraFacing.FRONT) { cwRotationFromNaturalToCamera = (360 - cwRotationFromNaturalToCamera) % 360; Log.i(TAG, "Front camera overriden to: " + cwRotationFromNaturalToCamera); } cwRotationFromDisplayToCamera = (360 + cwRotationFromNaturalToCamera - cwRotationFromNaturalToDisplay) % 360; Log.i(TAG, "Final display orientation: " + cwRotationFromDisplayToCamera); if (camera.getFacing() == CameraFacing.FRONT) { Log.i(TAG, "Compensating rotation for front camera"); cwNeededRotation = (360 - cwRotationFromDisplayToCamera) % 360; } else { cwNeededRotation = cwRotationFromDisplayToCamera; } Log.i(TAG, "Clockwise rotation from display to camera: " + cwNeededRotation); Point theScreenResolution = new Point(); display.getSize(theScreenResolution); screenResolution = theScreenResolution; Log.i(TAG, "Screen resolution in current orientation: " + screenResolution); cameraResolution = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, new Point()); Log.i(TAG, "Camera resolution: " + cameraResolution); bestPreviewSize = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, new Point()); Log.i(TAG, "Best available preview size: " + bestPreviewSize); boolean isScreenPortrait = screenResolution.x < screenResolution.y; boolean isPreviewSizePortrait = bestPreviewSize.x < bestPreviewSize.y; if (isScreenPortrait == isPreviewSizePortrait) { previewSizeOnScreen = bestPreviewSize; } else { previewSizeOnScreen = new Point(bestPreviewSize.y, bestPreviewSize.x); } Log.i(TAG, "Preview size on screen: " + previewSizeOnScreen); }
void setDesiredCameraParameters(Camera camera, boolean safeMode) { Camera.Parameters parameters = camera.getParameters(); if (parameters == null) { Log.w( TAG, "Device error: no camera parameters are available. Proceeding without configuration."); return; } Log.i(TAG, "Initial camera parameters: " + parameters.flatten()); if (safeMode) { Log.w(TAG, "In camera config safe mode -- most settings will not be honored"); } SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); initializeTorch(parameters, prefs, safeMode); CameraConfigurationUtils.setFocus( parameters, prefs.getBoolean(PreferencesActivity.KEY_AUTO_FOCUS, true), prefs.getBoolean(PreferencesActivity.KEY_DISABLE_CONTINUOUS_FOCUS, true), safeMode); if (!safeMode) { if (prefs.getBoolean(PreferencesActivity.KEY_INVERT_SCAN, false)) { CameraConfigurationUtils.setInvertColor(parameters); } if (!prefs.getBoolean(PreferencesActivity.KEY_DISABLE_BARCODE_SCENE_MODE, true)) { CameraConfigurationUtils.setBarcodeSceneMode(parameters); } if (!prefs.getBoolean(PreferencesActivity.KEY_DISABLE_METERING, true)) { CameraConfigurationUtils.setVideoStabilization(parameters); CameraConfigurationUtils.setFocusArea(parameters); CameraConfigurationUtils.setMetering(parameters); } } parameters.setPreviewSize(cameraResolution.x, cameraResolution.y); Log.i(TAG, "Final camera parameters: " + parameters.flatten()); camera.setParameters(parameters); Camera.Parameters afterParameters = camera.getParameters(); Camera.Size afterSize = afterParameters.getPreviewSize(); if (afterSize != null && (cameraResolution.x != afterSize.width || cameraResolution.y != afterSize.height)) { Log.w( TAG, "Camera said it supported preview size " + cameraResolution.x + 'x' + cameraResolution.y + ", but after setting it, preview size is " + afterSize.width + 'x' + afterSize.height); cameraResolution.x = afterSize.width; cameraResolution.y = afterSize.height; } }
private void doSetTorch(Camera.Parameters parameters, boolean newSetting, boolean safeMode) { CameraConfigurationUtils.setTorch(parameters, newSetting); if (!safeMode) { CameraConfigurationUtils.setBestExposure(parameters, newSetting); } }