private void updateProgressMessage(int value) {
        if (!isInEditMode()) {
            if (mNumericTransformer.useStringTransform()) {
                mIndicator.setValue(mNumericTransformer.transformToString(value));
            } else {
                mIndicator.setValue(convertValueToMessage(mNumericTransformer.transform(value)));
            }
        }
    }
When the {@link DiscreteSeekBar} value changes this method is called
<p>
Subclasses may override this to add functionality around this event
without having to specify a {@link OnProgressChangeListener}
</p>
app/src/main/java/com/duan/musicoco/view/discreteseekbar/DiscreteSeekBar.java