com.google.zxing.client.android.camera.open.OpenCamera#getCamera ( )源码实例Demo

下面列出了com.google.zxing.client.android.camera.open.OpenCamera#getCamera ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： flutter_qr_reader 文件： CameraManager.java

/**
 * @param enabled if {@code true}, light should be turned on if currently off. And vice versa.
 */
public synchronized void setTorchEnabled(boolean enabled) {
  OpenCamera theCamera = openCamera;
  if (theCamera != null && enabled != configManager.getTorchState(theCamera.getCamera())) {
    boolean wasAutoFocusManager = autoFocusManager != null;
    if (wasAutoFocusManager) {
      autoFocusManager.stop();
      autoFocusManager = null;
    }
    configManager.setTorchEnabled(theCamera.getCamera(), enabled);
    if (wasAutoFocusManager) {
      autoFocusManager = new AutoFocusManager(theCamera.getCamera());
      autoFocusManager.start();
    }
  }
}

源代码2 项目： Study_Android_Demo 文件： CameraManager.java

/**
 * Convenience method for {@link com.google.zxing.client.android.CaptureActivity}
 *
 * @param newSetting if {@code true}, light should be turned on if currently off. And vice versa.
 */
public synchronized void setTorch(boolean newSetting) {
  OpenCamera theCamera = camera;
  if (theCamera != null) {
    if (newSetting != configManager.getTorchState(theCamera.getCamera())) {
      boolean wasAutoFocusManager = autoFocusManager != null;
      if (wasAutoFocusManager) {
        autoFocusManager.stop();
        autoFocusManager = null;
      }
      configManager.setTorch(theCamera.getCamera(), newSetting);
      if (wasAutoFocusManager) {
        autoFocusManager = new AutoFocusManager(context, theCamera.getCamera());
        autoFocusManager.start();
      }
    }
  }
}

源代码3 项目： ProjectX 文件： CameraManager.java

/**
 * Convenience method
 *
 * @param newSetting if {@code true}, light should be turned on if currently off. And vice versa.
 */
public synchronized void setTorch(boolean newSetting) {
    OpenCamera theCamera = camera;
    if (theCamera != null) {
        if (newSetting != configManager.getTorchState(theCamera.getCamera())) {
            boolean wasAutoFocusManager = autoFocusManager != null;
            if (wasAutoFocusManager) {
                autoFocusManager.stop();
                autoFocusManager = null;
            }
            configManager.setTorch(theCamera.getCamera(), newSetting);
            if (wasAutoFocusManager) {
                autoFocusManager = new AutoFocusManager(context, theCamera.getCamera());
                autoFocusManager.start();
            }
        }
    }
}

源代码4 项目： barcodescanner-lib-aar 文件： CameraManager.java

/**
   * Convenience method for {@link com.google.zxing.client.android.CaptureActivity}
   *
   * @param newSetting if {@code true}, light should be turned on if currently off. And vice versa.
   */
public synchronized void setTorch(boolean newSetting) {
  OpenCamera theCamera = camera;
  if (theCamera != null) {
    if (newSetting != configManager.getTorchState(theCamera.getCamera())) {
      boolean wasAutoFocusManager = autoFocusManager != null;
      if (wasAutoFocusManager) {
        autoFocusManager.stop();
        autoFocusManager = null;
      }
      configManager.setTorch(theCamera.getCamera(), newSetting);
      if (wasAutoFocusManager) {
        autoFocusManager = new AutoFocusManager(context, theCamera.getCamera());
        autoFocusManager.start();
      }
    }
  }
}

源代码5 项目： analyzer-of-android-for-Apache-Weex 文件： CameraManager.java

/**
 * Convenience method for {@link com.google.zxing.client.android.CaptureActivity}
 *
 * @param newSetting if {@code true}, light should be turned on if currently off. And vice versa.
 */
public synchronized void setTorch(boolean newSetting) {
  OpenCamera theCamera = camera;
  if (theCamera != null) {
    if (newSetting != configManager.getTorchState(theCamera.getCamera())) {
      boolean wasAutoFocusManager = autoFocusManager != null;
      if (wasAutoFocusManager) {
        autoFocusManager.stop();
        autoFocusManager = null;
      }
      configManager.setTorch(theCamera.getCamera(), newSetting);
      if (wasAutoFocusManager) {
        autoFocusManager = new AutoFocusManager(context, theCamera.getCamera());
        autoFocusManager.start();
      }
    }
  }
}

源代码6 项目： weex 文件： CameraManager.java

/**
 * Convenience method for {@link com.google.zxing.client.android.CaptureActivity}
 *
 * @param newSetting if {@code true}, light should be turned on if currently off. And vice versa.
 */
public synchronized void setTorch(boolean newSetting) {
  OpenCamera theCamera = camera;
  if (theCamera != null) {
    if (newSetting != configManager.getTorchState(theCamera.getCamera())) {
      boolean wasAutoFocusManager = autoFocusManager != null;
      if (wasAutoFocusManager) {
        autoFocusManager.stop();
        autoFocusManager = null;
      }
      configManager.setTorch(theCamera.getCamera(), newSetting);
      if (wasAutoFocusManager) {
        autoFocusManager = new AutoFocusManager(context, theCamera.getCamera());
        autoFocusManager.start();
      }
    }
  }
}

源代码7 项目： Study_Android_Demo 文件： CameraManager.java

/**
 * Asks the camera hardware to begin drawing preview frames to the screen.
 */
public synchronized void startPreview() {
  OpenCamera theCamera = camera;
  if (theCamera != null && !previewing) {
    theCamera.getCamera().startPreview();
    previewing = true;
    autoFocusManager = new AutoFocusManager(context, theCamera.getCamera());
  }
}

源代码8 项目： barcodescanner-lib-aar 文件： CameraManager.java

/**
 * Asks the camera hardware to begin drawing preview frames to the screen.
 */
public synchronized void startPreview() {
  OpenCamera theCamera = camera;
  if (theCamera != null && !previewing) {
    theCamera.getCamera().startPreview();
    previewing = true;
    autoFocusManager = new AutoFocusManager(context, theCamera.getCamera());
  }
}

源代码9 项目： flutter_qr_reader 文件： CameraManager.java

/**
 * Opens the google.zxing.client.android.android.com.google.zxing.client.android.camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the google.zxing.client.android.android.com.google.zxing.client.android.camera will draw preview frames into.
 * @param height @throws IOException Indicates the google.zxing.client.android.android.com.google.zxing.client.android.camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder, int width, int height)
    throws IOException {
  OpenCamera theCamera = openCamera;
  if (!isOpen()) {
    theCamera = OpenCameraInterface.open(requestedCameraId);
    if (theCamera == null || theCamera.getCamera() == null) {
      throw new IOException("Camera.open() failed to return object from driver");
    }
    openCamera = theCamera;
  }
  theCamera.getCamera().setPreviewDisplay(holder);
  theCamera.getCamera().setPreviewCallback(previewCallback);
  theCamera.getCamera().setDisplayOrientation(displayOrientation);

  if (!initialized) {
    initialized = true;
    configManager.initFromCameraParameters(theCamera, width, height);
  }

  Camera cameraObject = theCamera.getCamera();
  Camera.Parameters parameters = cameraObject.getParameters();
  String parametersFlattened =
      parameters == null ? null : parameters.flatten(); // Save these, temporarily
  try {
    configManager.setDesiredCameraParameters(theCamera, false);
  } catch (RuntimeException re) {
    // Driver failed
    SimpleLog.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
    SimpleLog.i(TAG, "Resetting to saved google.zxing.client.android.android.com.google.zxing.client.android.camera params: " + parametersFlattened);
    // Reset:
    if (parametersFlattened != null) {
      parameters = cameraObject.getParameters();
      parameters.unflatten(parametersFlattened);
      try {
        cameraObject.setParameters(parameters);
        configManager.setDesiredCameraParameters(theCamera, true);
      } catch (RuntimeException re2) {
        // Well, darn. Give up
        SimpleLog.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
      }
    }
  }
  cameraObject.setPreviewDisplay(holder);
}

源代码10 项目： Study_Android_Demo 文件： CameraManager.java

/**
 * Opens the camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the camera will draw preview frames into.
 * @throws IOException Indicates the camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder) throws IOException {
  OpenCamera theCamera = camera;
  if (theCamera == null) {
    theCamera = OpenCameraInterface.open(requestedCameraId);
    if (theCamera == null) {
      throw new IOException("Camera.open() failed to return object from driver");
    }
    camera = theCamera;
  }

  if (!initialized) {
    initialized = true;
    configManager.initFromCameraParameters(theCamera);
    if (requestedFramingRectWidth > 0 && requestedFramingRectHeight > 0) {
      setManualFramingRect(requestedFramingRectWidth, requestedFramingRectHeight);
      requestedFramingRectWidth = 0;
      requestedFramingRectHeight = 0;
    }
  }

  Camera cameraObject = theCamera.getCamera();
  Camera.Parameters parameters = cameraObject.getParameters();
  String parametersFlattened = parameters == null ? null : parameters.flatten(); // Save these, temporarily
  try {
    configManager.setDesiredCameraParameters(theCamera, false);
  } catch (RuntimeException re) {
    // Driver failed
    Log.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
    Log.i(TAG, "Resetting to saved camera params: " + parametersFlattened);
    // Reset:
    if (parametersFlattened != null) {
      parameters = cameraObject.getParameters();
      parameters.unflatten(parametersFlattened);
      try {
        cameraObject.setParameters(parameters);
        configManager.setDesiredCameraParameters(theCamera, true);
      } catch (RuntimeException re2) {
        // Well, darn. Give up
        Log.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
      }
    }
  }
  cameraObject.setPreviewDisplay(holder);

}

源代码11 项目： ShareBox 文件： CameraManager.java

/**
 * Opens the camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the camera will draw preview frames into.
 * @param height @throws IOException Indicates the camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder, int width, int height)
        throws IOException {
    OpenCamera theCamera = openCamera;
    if (!isOpen()) {
        theCamera = OpenCameraInterface.open(requestedCameraId);
        if (theCamera == null || theCamera.getCamera() == null) {
            throw new IOException("Camera.open() failed to return object from driver");
        }
        openCamera = theCamera;
    }
    theCamera.getCamera().setPreviewDisplay(holder);
    theCamera.getCamera().setPreviewCallback(previewCallback);
    theCamera.getCamera().setDisplayOrientation(displayOrientation);

    if (!initialized) {
        initialized = true;
        configManager.initFromCameraParameters(theCamera, width, height);
    }

    Camera cameraObject = theCamera.getCamera();
    Camera.Parameters parameters = cameraObject.getParameters();
    String parametersFlattened =
            parameters == null ? null : parameters.flatten(); // Save these, temporarily
    try {
        configManager.setDesiredCameraParameters(theCamera, false);
    } catch (RuntimeException re) {
        // Driver failed
        Log.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
        Log.i(TAG, "Resetting to saved camera params: " + parametersFlattened);
        // Reset:
        if (parametersFlattened != null) {
            parameters = cameraObject.getParameters();
            parameters.unflatten(parametersFlattened);
            try {
                cameraObject.setParameters(parameters);
                configManager.setDesiredCameraParameters(theCamera, true);
            } catch (RuntimeException re2) {
                // Well, darn. Give up
                Log.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
            }
        }
    }
    cameraObject.setPreviewDisplay(holder);
}

源代码12 项目： Study_Android_Demo 文件： CameraConfigurationManager.java

void setDesiredCameraParameters(OpenCamera camera, boolean safeMode) {

    Camera theCamera = camera.getCamera();
    Camera.Parameters parameters = theCamera.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(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;
    }
  }

源代码13 项目： ProjectX 文件： CameraManager.java

/**
 * Opens the camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the camera will draw preview frames into.
 * @throws IOException Indicates the camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder) throws IOException {
    OpenCamera theCamera = camera;
    if (theCamera == null) {
        theCamera = OpenCameraInterface.open(requestedCameraId);
        if (theCamera == null) {
            throw new IOException("Camera.open() failed to return object from driver");
        }
        camera = theCamera;
    }

    if (!initialized) {
        initialized = true;
        configManager.initFromCameraParameters(theCamera);
        if (requestedFramingRectWidth > 0 && requestedFramingRectHeight > 0) {
            setManualFramingRect(requestedFramingRectWidth, requestedFramingRectHeight);
            requestedFramingRectWidth = 0;
            requestedFramingRectHeight = 0;
        }
    }

    Camera cameraObject = theCamera.getCamera();
    Camera.Parameters parameters = cameraObject.getParameters();
    String parametersFlattened = parameters == null ? null : parameters.flatten(); // Save these, temporarily
    try {
        configManager.setDesiredCameraParameters(theCamera, false);
    } catch (RuntimeException re) {
        // Driver failed
        Log.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
        Log.i(TAG, "Resetting to saved camera params: " + parametersFlattened);
        // Reset:
        if (parametersFlattened != null) {
            parameters = cameraObject.getParameters();
            parameters.unflatten(parametersFlattened);
            try {
                cameraObject.setParameters(parameters);
                configManager.setDesiredCameraParameters(theCamera, true);
            } catch (RuntimeException re2) {
                // Well, darn. Give up
                Log.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
            }
        }
    }
    cameraObject.setPreviewDisplay(holder);

}

源代码14 项目： ZXing-Standalone-library 文件： CameraManager.java

/**
 * Opens the camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the camera will draw preview frames into.
 * @throws IOException Indicates the camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder) throws IOException {
  OpenCamera theCamera = camera;
  if (theCamera == null) {
    theCamera = OpenCameraInterface.open(requestedCameraId);
    if (theCamera == null) {
      throw new IOException("Camera.open() failed to return object from driver");
    }
    camera = theCamera;
  }

  if (!initialized) {
    initialized = true;
    configManager.initFromCameraParameters(theCamera);
    if (requestedFramingRectWidth > 0 && requestedFramingRectHeight > 0) {
      setManualFramingRect(requestedFramingRectWidth, requestedFramingRectHeight);
      requestedFramingRectWidth = 0;
      requestedFramingRectHeight = 0;
    }
  }

  Camera cameraObject = theCamera.getCamera();
  Camera.Parameters parameters = cameraObject.getParameters();
  String parametersFlattened = parameters == null ? null : parameters.flatten(); // Save these, temporarily
  try {
    configManager.setDesiredCameraParameters(theCamera, false);
  } catch (RuntimeException re) {
    // Driver failed
    Log.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
    Log.i(TAG, "Resetting to saved camera params: " + parametersFlattened);
    // Reset:
    if (parametersFlattened != null) {
      parameters = cameraObject.getParameters();
      parameters.unflatten(parametersFlattened);
      try {
        cameraObject.setParameters(parameters);
        configManager.setDesiredCameraParameters(theCamera, true);
      } catch (RuntimeException re2) {
        // Well, darn. Give up
        Log.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
      }
    }
  }
  cameraObject.setPreviewDisplay(holder);

}

源代码15 项目： analyzer-of-android-for-Apache-Weex 文件： CameraManager.java

/**
 * Opens the camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the camera will draw preview frames into.
 * @throws IOException Indicates the camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder) throws IOException {
  OpenCamera theCamera = camera;
  if (theCamera == null) {
    theCamera = OpenCameraInterface.open(requestedCameraId);
    if (theCamera == null) {
      throw new IOException("Camera.open() failed to return object from driver");
    }
    camera = theCamera;
  }

  if (!initialized) {
    initialized = true;
    configManager.initFromCameraParameters(theCamera);
    if (requestedFramingRectWidth > 0 && requestedFramingRectHeight > 0) {
      setManualFramingRect(requestedFramingRectWidth, requestedFramingRectHeight);
      requestedFramingRectWidth = 0;
      requestedFramingRectHeight = 0;
    }
  }

  Camera cameraObject = theCamera.getCamera();
  Camera.Parameters parameters = cameraObject.getParameters();
  String parametersFlattened = parameters == null ? null : parameters.flatten(); // Save these, temporarily
  try {
    configManager.setDesiredCameraParameters(theCamera, false);
  } catch (RuntimeException re) {
    // Driver failed
    Log.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
    Log.i(TAG, "Resetting to saved camera params: " + parametersFlattened);
    // Reset:
    if (parametersFlattened != null) {
      parameters = cameraObject.getParameters();
      parameters.unflatten(parametersFlattened);
      try {
        cameraObject.setParameters(parameters);
        configManager.setDesiredCameraParameters(theCamera, true);
      } catch (RuntimeException re2) {
        // Well, darn. Give up
        Log.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
      }
    }
  }
  cameraObject.setPreviewDisplay(holder);

}

源代码16 项目： barcodescanner-lib-aar 文件： CameraManager.java

/**
 * Opens the camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the camera will draw preview frames into.
 * @throws IOException Indicates the camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder) throws IOException {
  OpenCamera theCamera = camera;
  if (theCamera == null) {
    theCamera = OpenCameraInterface.open(requestedCameraId);
    if (theCamera == null) {
      throw new IOException("Camera.open() failed to return object from driver");
    }
    camera = theCamera;
  }

  if (!initialized) {
    initialized = true;
    configManager.initFromCameraParameters(theCamera);
    if (requestedFramingRectWidth > 0 && requestedFramingRectHeight > 0) {
      setManualFramingRect(requestedFramingRectWidth, requestedFramingRectHeight);
      requestedFramingRectWidth = 0;
      requestedFramingRectHeight = 0;
    }
  }

  Camera cameraObject = theCamera.getCamera();
  Camera.Parameters parameters = cameraObject.getParameters();
  String parametersFlattened = parameters == null ? null : parameters.flatten(); // Save these, temporarily
  try {
    configManager.setDesiredCameraParameters(theCamera, false);
  } catch (RuntimeException re) {
    // Driver failed
    Log.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
    Log.i(TAG, "Resetting to saved camera params: " + parametersFlattened);
    // Reset:
    if (parametersFlattened != null) {
      parameters = cameraObject.getParameters();
      parameters.unflatten(parametersFlattened);
      try {
        cameraObject.setParameters(parameters);
        configManager.setDesiredCameraParameters(theCamera, true);
      } catch (RuntimeException re2) {
        // Well, darn. Give up
        Log.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
      }
    }
  }
  cameraObject.setPreviewDisplay(holder);

  if (torchInitiallyOn) {
    setTorch(true);
  }
}

源代码17 项目： analyzer-of-android-for-Apache-Weex 文件： CameraConfigurationManager.java

void setDesiredCameraParameters(OpenCamera camera, boolean safeMode) {

    Camera theCamera = camera.getCamera();
    Camera.Parameters parameters = theCamera.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(bestPreviewSize.x, bestPreviewSize.y);

    theCamera.setDisplayOrientation(90);
    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;
    }
  }

源代码18 项目： weex 文件： CameraManager.java

/**
 * Opens the camera driver and initializes the hardware parameters.
 *
 * @param holder The surface object which the camera will draw preview frames into.
 * @throws IOException Indicates the camera driver failed to open.
 */
public synchronized void openDriver(SurfaceHolder holder) throws IOException {
  OpenCamera theCamera = camera;
  if (theCamera == null) {
    theCamera = OpenCameraInterface.open(requestedCameraId);
    if (theCamera == null) {
      throw new IOException("Camera.open() failed to return object from driver");
    }
    camera = theCamera;
  }

  if (!initialized) {
    initialized = true;
    configManager.initFromCameraParameters(theCamera);
    if (requestedFramingRectWidth > 0 && requestedFramingRectHeight > 0) {
      setManualFramingRect(requestedFramingRectWidth, requestedFramingRectHeight);
      requestedFramingRectWidth = 0;
      requestedFramingRectHeight = 0;
    }
  }

  Camera cameraObject = theCamera.getCamera();
  Camera.Parameters parameters = cameraObject.getParameters();
  String parametersFlattened = parameters == null ? null : parameters.flatten(); // Save these, temporarily
  try {
    configManager.setDesiredCameraParameters(theCamera, false);
  } catch (RuntimeException re) {
    // Driver failed
    Log.w(TAG, "Camera rejected parameters. Setting only minimal safe-mode parameters");
    Log.i(TAG, "Resetting to saved camera params: " + parametersFlattened);
    // Reset:
    if (parametersFlattened != null) {
      parameters = cameraObject.getParameters();
      parameters.unflatten(parametersFlattened);
      try {
        cameraObject.setParameters(parameters);
        configManager.setDesiredCameraParameters(theCamera, true);
      } catch (RuntimeException re2) {
        // Well, darn. Give up
        Log.w(TAG, "Camera rejected even safe-mode parameters! No configuration");
      }
    }
  }
  cameraObject.setPreviewDisplay(holder);

}

源代码19 项目： ProjectX 文件： CameraConfigurationManager.java

void setDesiredCameraParameters(OpenCamera camera, boolean safeMode) {

        Camera theCamera = camera.getCamera();
        Camera.Parameters parameters = theCamera.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(CameraPreferences.KEY_AUTO_FOCUS, true),
                prefs.getBoolean(CameraPreferences.KEY_DISABLE_CONTINUOUS_FOCUS, true),
                safeMode);

        if (!safeMode) {
            if (prefs.getBoolean(CameraPreferences.KEY_INVERT_SCAN, false)) {
                CameraConfigurationUtils.setInvertColor(parameters);
            }

            if (!prefs.getBoolean(CameraPreferences.KEY_DISABLE_BARCODE_SCENE_MODE, true)) {
                CameraConfigurationUtils.setBarcodeSceneMode(parameters);
            }

            if (!prefs.getBoolean(CameraPreferences.KEY_DISABLE_METERING, true)) {
                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;
        }
    }

源代码20 项目： weex 文件： CameraConfigurationManager.java

void setDesiredCameraParameters(OpenCamera camera, boolean safeMode) {

    Camera theCamera = camera.getCamera();
    Camera.Parameters parameters = theCamera.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(bestPreviewSize.x, bestPreviewSize.y);

    theCamera.setDisplayOrientation(90);
    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;
    }
  }

方法所在类

com.google.zxing.client.android.camera.open.OpenCamera