警告信息 Flutter开发遇到如下警告Constructorsin'@immutable'classesshouldbedeclaredas'const'. 报错代码 classTaskWidgetextendsStatefulWidget{ finalStringtitle; finalboolisChecked; finalintorder; TaskWidget({ requiredthis.title, requiredthis.isChecked, requiredthis.order, Key?key, }):super(key:key); @override State&l...

问题描述 Thisclass(oraclassthatthisclassinheritsfrom)ismarkedas'@immutable',butoneormoreofitsinstancefieldsaren'tfinal:SerialsTimer.tasks 问题代码 classSerialsTimerextendsStatefulWidget{ lateQueue<Task>tasks;//使用Queue来管理任务 SerialsTimer({ Key?key, requiredthis.tasks, }):super(key:key); @override Sta...