void
replaceChildAt(Bitmap child, int index)
Source
@override
void replaceChildAt(Bitmap child, int index) {
if (index < 0 || index >= _children.length) {
throw new ArgumentError("The supplied index is out of bounds.");
} else if (child.parent == this) {
if (_children.indexOf(child) == index) return;
throw new ArgumentError("The bitmap is already a child of this container.");
} else {
var oldChild = _children[index];
var newChild = child;
newChild.removeFromParent();
oldChild._parent = null;
newChild._parent = this;
_children[index] = newChild;
}
}