setOnSelectionChanged method
(en) Set onSelectionChanged function.
(ja) 選択状態が変化した時のコールバックを設定します。
Implementation
void setOnSelectionChanged(
void Function(TextSelection, SelectionChangedCause?)?
onSelectionChanged) {
elParams.p.selectableTextRichParams ??= SelectableTextRichParams();
elParams.p.selectableTextRichParams!.selectableTextParams
.onSelectionChanged = onSelectionChanged;
}