第6章Cupertino风格组件-CupertinoActivityIndicator组件

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import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'CupertinoActivityIndicator示例',
      home: Scaffold(
        appBar: AppBar(
          title: Text('CupertinoActivityIndicator示例'),
        ),
        body: Center(
          child: CupertinoActivityIndicator(
            radius: 60.0,//值越大加载的图形越大
          ),
        ),
      ),
    );
  }
}

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@作者: 亢少军