code: @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
      public static boolean hasCameraFeatureAtLeastOne(Context context) {
          return hasCameraFeatureAtLeastOne(context.getPackageManager());
      }
docs: Checks if the device has at least one camera.
  @param context the context.
  @return {@code true} if the device has at least one camera.