public boolean onEdgeLock(int edgeFlags) {
            return false;
        }
Called when the given edge may become locked. This can happen if an edge drag
was preliminarily rejected before beginning, but after {@link #onEdgeTouched(int, int)}
was called. This method should return true to lock this edge or false to leave it
unlocked. The default behavior is to leave edges unlocked.

@param edgeFlags A combination of edge flags describing the edge(s) locked
@return true to lock the edge, false to leave it unlocked
app/src/main/java/home/smart/fly/animations/widget/slidepanel/ViewDragHelper.java