public void drawView() {
if (mLabels == null) {
throw new IllegalArgumentException("labels must not be null.");
}
if (mCompletedPosition < 0 || mCompletedPosition > mLabels.length - 1) {
throw new IndexOutOfBoundsException(
String.format("Index : %s, Size : %s", mCompletedPosition, mLabels.length));
}
mStepsViewIndicator.invalidate();
}
