Example usage for android.hardware Camera getParameters

Introduction

In this page you can find the example usage for android.hardware Camera getParameters.

Prototype

public Parameters getParameters()

Source Link

Document

Returns the current settings for this Camera service.

Usage

From source file:Main.java

/** Sets the camera's picture size to the maximum available size, as determined by number of pixels (width*height).
 * Returns a Camera.Size object containing the updated picture size.
 *///from   w w  w .  ja  v a2s .c o  m
public static Camera.Size setLargestCameraSize(Camera camera) {
    Camera.Parameters params = camera.getParameters();
    List<Camera.Size> pictureSizes = pictureSizesForCameraParameters(params);
    if (pictureSizes != null && pictureSizes.size() > 0) {
        long bestPixels = -1;
        Camera.Size bestSize = null;
        for (Camera.Size size : pictureSizes) {
            long pixels = size.width * size.height;
            if (pixels > bestPixels || bestPixels < 0) {
                bestPixels = pixels;
                bestSize = size;
            }
        }
        if (bestSize != null) {
            params.setPictureSize(bestSize.width, bestSize.height);
            camera.setParameters(params);
        }
    }

    return params.getPictureSize();
}

From source file:Main.java

public static Camera openFlightLight() {
    try {/*  ww  w  .  java  2 s.  c  o m*/
        Camera camera = Camera.open();
        if (null != camera) {
            Parameters parameters = camera.getParameters();
            List<String> list = parameters.getSupportedFlashModes();
            for (String string : list) {
                if (Parameters.FLASH_MODE_TORCH.equals(string)) {
                    parameters.setFlashMode(string);
                    camera.setParameters(parameters);
                    camera.startPreview();
                    return camera;
                }
            }
        }
    } catch (Exception e) {
    }
    return null;
}

From source file:Main.java

/** Updates the Camera object's preview size to the nearest match for the given width and height.
 * Returns the preview size whether it was updated or not.
 *//*from  w w  w  . j  a v a 2  s. co  m*/
public static Camera.Size setNearestCameraPreviewSize(Camera camera, int width, int height) {
    Camera.Parameters params = camera.getParameters();
    Camera.Size size = bestCameraSizeForWidthAndHeight(params, width, height);
    if (size != null) {
        params.setPreviewSize(size.width, size.height);
        camera.setParameters(params);
    }
    return params.getPreviewSize();
}

From source file:Main.java

static android.hardware.Camera.Parameters getFailsafeCameraParameters(Camera camera) {
    android.hardware.Camera.Parameters parameters = camera.getParameters();

    if (Build.VERSION.SDK_INT >= 9) {
        setFocusMode(parameters);//from   www. j  av a 2  s.c  om
    }
    return parameters;
}

From source file:Main.java

@SuppressLint("NewApi")
public static List<Size> getCameraSupportedVideoSizes(android.hardware.Camera camera) {
    if ((Build.VERSION.SDK_INT >= 11) && (camera != null)) {
        return camera.getParameters().getSupportedVideoSizes();
    } else {//w  w  w  .java2  s.  co  m
        return null;
    }
}

From source file:Main.java

/** Returns true if the device's API and camera supports zooming. */
public static boolean cameraSupportsZoom(Camera camera) {
    if (!sdkSupportsCameraZoom())
        return false;
    try {/*from w  w  w.  j  av  a 2  s  .  com*/
        Camera.Parameters params = camera.getParameters();
        Method zoomSupported = params.getClass().getMethod("isZoomSupported");
        return (Boolean) zoomSupported.invoke(params);
    } catch (Exception ex) {
        return false;
    }
}

From source file:Main.java

public static void setFlashMode(Camera mCamera, Context item, int type) {
    Camera.Parameters params = mCamera.getParameters();
    List<String> FlashModes = params.getSupportedFlashModes();

    switch (type) {
    case 0://from   w w  w  .j  av a2  s . c  om
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_AUTO))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_AUTO);
        else
            Toast.makeText(item, "Auto Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 1:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_OFF))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
        else
            Toast.makeText(item, "Off Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 2:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_ON))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_ON);
        else
            Toast.makeText(item, "On Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 3:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_RED_EYE))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_RED_EYE);
        else
            Toast.makeText(item, "Red Eye Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    case 4:
        if (FlashModes.contains(Camera.Parameters.FLASH_MODE_TORCH))
            params.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
        else
            Toast.makeText(item, "Torch Mode not supported", Toast.LENGTH_SHORT).show();
        break;
    }

    mCamera.setParameters(params);
}

From source file:Main.java

/** Attempts to allocate and register the given number of preview callback buffers. Uses the camera's current preview
 * size to determine the size of the buffers. If the Android API doesn't support preview buffers, does nothing.
 * Returns true if successful./*from  w  w  w . j a  v a2 s.  co m*/
 */
public static boolean createPreviewCallbackBuffers(Camera camera, int nbuffers) {
    if (addPreviewBufferMethod == null)
        return false;

    Camera.Size previewSize = camera.getParameters().getPreviewSize();
    // 12 bits per pixel for preview buffer (8 chroma bytes, then average of 2 bytes each for Cr and Cb)
    int bufferSize = previewSize.width * previewSize.height * 3 / 2;
    for (int i = 0; i < nbuffers; i++) {
        byte[] buffer = new byte[bufferSize];
        try {
            addPreviewBufferMethod.invoke(camera, buffer);
        } catch (Exception ignored) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

public static void turnOnFlash(Context context, Camera camera, int currentCameraId) {
    if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)) {
        Parameters params = camera.getParameters();
        params.setFlashMode(Parameters.FLASH_MODE_TORCH);
        camera.setParameters(params);//from  w  w  w.j  ava2  s  .c o m
    }
}

From source file:Main.java

public static void turnOffFlash(Context context, Camera camera, int currentCameraId) {
    if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)) {
        Parameters params = camera.getParameters();
        params.setFlashMode(Parameters.FLASH_MODE_OFF);
        camera.setParameters(params);/*from www .j a  v  a  2 s.  c  om*/
    }
}