@Override
    public boolean setState(int[] stateSet) {
        boolean handled = super.setState(stateSet);
        handled = updateTint(stateSet) || handled;
        return handled;
    }
A drawable that changes it's Paint color depending on the Drawable State
<p>
Subclasses should implement {@link #doDraw(Canvas, Paint)}
</p>

@hide
app/src/main/java/com/duan/musicoco/view/discreteseekbar/internal/drawable/StateDrawable.java