This section describes events that the ButtonGroup widget raises.
Raised when the widget's content is ready.
Main article: onContentReady.
Raised before the widget is disposed of.
Main article: onDisposing
Raised only once, after the widget is initialized.
Main article: onInitialized
Raised when a button is clicked or tapped.
Raised after a widget option is changed.
Main article: onOptionChanged
Raised when a button is selected or selection is canceled.
Main article: onSelectionChanged