Android Utililty Methods Camera Get

List of utility methods to do Camera Get

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Description

The list of methods to do Camera Get are organized into topic(s).

Method

CameragetDefaultFrontFacingCameraInstance()
get Default Front Facing Camera Instance 
return getDefaultCamera(Camera.CameraInfo.CAMERA_FACING_FRONT);
intgetNumberOfCameras()
get Number Of Cameras 
return Camera.getNumberOfCameras();
CameragetDefaultBackFacingCameraInstance()
get Default Back Facing Camera Instance 
return getDefaultCamera(Camera.CameraInfo.CAMERA_FACING_BACK);
intgetCameraRotation(final Context context)
get Camera Rotation 
final WindowManager windowManager = (WindowManager) context
        .getSystemService(Context.WINDOW_SERVICE);
int rotation = windowManager.getDefaultDisplay().getRotation();
final DisplayMetrics metrics = new DisplayMetrics();
windowManager.getDefaultDisplay().getMetrics(metrics);
final int width = metrics.widthPixels;
final int height = metrics.heightPixels;
if ((rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_180)
...
IntegerindexOfClosestZoom(Camera.Parameters parameters, double targetZoomRatio)
index Of Closest Zoom 
List<Integer> ratios = parameters.getZoomRatios();
Log.i(TAG, "Zoom ratios: " + ratios);
int maxZoom = parameters.getMaxZoom();
if (ratios == null || ratios.isEmpty()
        || ratios.size() != maxZoom + 1) {
    Log.w(TAG, "Invalid zoom ratios!");
    return null;
double target100 = 100.0 * targetZoomRatio;
double smallestDiff = Double.POSITIVE_INFINITY;
int closestIndex = 0;
for (int i = 0; i < ratios.size(); i++) {
    double diff = Math.abs(ratios.get(i) - target100);
    if (diff < smallestDiff) {
        smallestDiff = diff;
        closestIndex = i;
Log.i(TAG, "Chose zoom ratio of "
        + (ratios.get(closestIndex) / 100.0));
return closestIndex;
Camera.SizegetLowestResolution(Camera.Parameters cp)
get Lowest Resolution 
List<Camera.Size> sl = cp.getSupportedVideoSizes();
if (sl == null)
    sl = cp.getSupportedPictureSizes();
Camera.Size small = sl.get(0);
for (Camera.Size s : sl) {
    if ((s.height * s.width) < (small.height * small.width))
        small = s;
return small;
voidlaunchCamera(Activity activity)
launch Camera 
Intent camera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
camera.putExtra(android.provider.MediaStore.EXTRA_OUTPUT,
        Uri.fromFile(getFileToStoreCameraResult()));
activity.startActivityForResult(camera, CAMERA_RESULT);