removeChildren method
Removes all child DisplayObject instances from the child list of this DisplayObjectContainer instance.
Optionally, an index range may be specified with beginIndex
and
endIndex
.
The parent property of the removed children is set to null, and the objects are garbage collected if no other references to the children exist.
Implementation
@override
void removeChildren([int beginIndex = 0, int? endIndex]) {
final length = _children.length;
final i1 = beginIndex;
final i2 = endIndex ?? length - 1;
if (i1 > i2) {
// do nothing
} else if (i1 < 0 || i1 >= length || i2 < 0 || i2 >= length) {
throw ArgumentError('The supplied index is out of bounds.');
} else {
for (var i = i1; i <= i2 && i1 < _children.length; i++) {
removeChildAt(i1);
}
}
}