shadows/framework/src/main/java/org/robolectric/shadows/ResourceHelper2.java
public static TypedValue getValue(String attribute, String value, boolean requireUnit) {
    if (parseFloatAttribute(attribute, value, mValue, requireUnit)) {
      return mValue;
    }

    return null;
  }
public static TypedValue getValue(String attribute, String value, boolean requireUnit) {
    if (parseFloatAttribute(attribute, value, mValue, requireUnit)) {
      return mValue;
    }

    return null;
  }
Returns the raw value from the given attribute float-type value string.
This object is only valid until the next call on to {@link ResourceHelper2}.

@param attribute Attribute name.
@param value Attribute value.
@param requireUnit whether the value is expected to contain a unit.
@return The typed value.