defaultTitleBuilder method
build title
Implementation
Widget? defaultTitleBuilder() {
List<Widget> titleRowChildren = [];
String? mTitle = widget.title;
if (mTitle != null) {
Widget getTextWidget() {
Widget textView = Text(mTitle, style: options.titleStyle);
var onTap = widget.funcOfTitleOnTapped;
if (onTap != null) {
/// Important!!! do not use result = Builder... for reusing the return statement, cause dart do a reference copy ...
return Builder(builder: (context) => GestureDetector(onTap: () => onTap(this, context), child: textView));
}
return textView;
}
Widget titleWidget = getTextWidget();
titleRowChildren.add(titleWidget);
}
/// title tails
List<Widget>? titleTailWidgets = options.titleTailWidgets;
if (titleTailWidgets != null) {
titleRowChildren.addAll(titleTailWidgets);
}
return titleRowChildren.isNotEmpty ? Row(children: titleRowChildren) : null;
}