public CSSNode removeChildAt(int i) {
// Assertions.assertNotNull(mChildren);
CSSNode removed = mChildren.remove(i);
removed.mParent = null;
dirty();
return removed;
}
public void addChildAt(CSSNode child, int i) {
if (child.mParent != null) {
throw new IllegalStateException("Child already has a parent, it must be removed first.");
}
if (mChildren == null) {
// 4 is kinda arbitrary, but the default of 10 seems really high for an average View.
mChildren = new ArrayList<CSSNode>(4);
}
mChildren.add(i, child);
child.mParent = this;
dirty();
}
protected void dirty() {
if (mLayoutState == LayoutState.DIRTY) {
return;
} else if (mLayoutState == LayoutState.HAS_NEW_LAYOUT) {
throw new IllegalStateException(
"Previous csslayout was ignored! markLayoutSeen() never called");
}
mLayoutState = LayoutState.DIRTY;
if (mParent != null) {
mParent.dirty();
}
}