createState method Null safety

  1. @override
State<StatefulWidget> createState()
override

Creates the mutable state for this widget at a given location in the tree.

Subclasses should override this method to return a newly created instance of their associated State subclass:

@override
State<MyWidget> createState() => _MyWidgetState();

The framework can call this method multiple times over the lifetime of a StatefulWidget. For example, if the widget is inserted into the tree in multiple locations, the framework will create a separate State object for each location. Similarly, if the widget is removed from the tree and later inserted into the tree again, the framework will call createState again to create a fresh State object, simplifying the lifecycle of State objects.

Implementation

@override
State<StatefulWidget> createState() {
  return SoundPlayerUIState(
    _track,
    _onLoad,
    enabled: _enabled,
    backgroundColor:
        (_backgroundColor != null) ? _backgroundColor : Color(0xFFFAF0E6),
    iconColor: _iconColor,
    disabledIconColor: _disabledIconColor,
    textStyle: _textStyle,
    titleStyle: _titleStyle,
    sliderThemeData: _sliderThemeData,
  );
}