对于单色集合，

 CircularProgressIndicator(
     valueColor:AlwaysStoppedAnimation<Color>(Colors.red),
   );

适用于多种颜色变换/设置。

class MyApp extends StatefulWidget {
      @override
      _MyHomePageState createState() => _MyHomePageState();
    }
    
    class _MyHomePageState extends State<MyApp> with TickerProviderStateMixin {
      AnimationController animationController;
      @override
      void dispose() {
        // TODO: implement dispose
        super.dispose();
        animationController.dispose();
      }
      @override
      void initState() {
        super.initState();
        animationController =
            AnimationController(duration: new Duration(seconds: 2), vsync: this);
        animationController.repeat();
      }
    
      @override
      Widget build(BuildContext context) {
        return Scaffold(
          appBar: AppBar(
            title: Text("Color Change CircularProgressIndicator"),
          ),
          body:  Center(
            child: CircularProgressIndicator(
              valueColor: animationController
                  .drive(ColorTween(begin: Colors.blueAccent, end: Colors.red)),
            ),
          ),
        );
      }
    }

这招对我很管用:

CircularProgressIndicator(valueColor: AlwaysStoppedAnimation<Color>(Colors.white))

CircularProgressIndicator(
  backgroundColor: Colors.amberAccent,
  semanticsLabel: 'Linear progress indicator',
),

试试这个:

CircularProgressIndicator(
  color: Colors.yellow, // Change your color here
),

valueColor:new AlwaysStoppedAnimation<Color>(Colors.yellow),

在主。dart设置主题为accentColor, CircularProgressIndicator将使用该颜色

void main() => runApp(new MaterialApp(
  theme: ThemeData(primaryColor: Colors.red, **accentColor:  Colors.yellowAccent**),
  debugShowCheckedModeBanner: false,
  home: SplashPage()
));