int getTotalUnseen(TreeNode n) {
int unseen = 0;
for (int i = 0; i < n.getChildCount(); i++) {
TreeNode child = n.getChildAt(i);
if (child instanceof PlaylistTreeNode) unseen += ((PlaylistTreeNode) child).numUnseenTracks;
else if (child instanceof LibraryTreeNode)
unseen += ((LibraryTreeNode) child).numUnseenTracks;
else unseen += getTotalUnseen(child);
}
return unseen;
}
boolean anyComments(TreeNode n) {
for (int i = 0; i < n.getChildCount(); i++) {
TreeNode child = n.getChildAt(i);
if (child instanceof PlaylistTreeNode) {
if (((PlaylistTreeNode) child).hasComments) return true;
} else if (child instanceof LibraryTreeNode) {
if (((LibraryTreeNode) child).hasComments) return true;
} else {
if (anyComments(child)) return true;
}
}
return false;
}