flutter 全局实现键盘下落

入口方法main.dart 添加

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
        // This makes the visual density adapt to the platform that you run
        // the app on. For desktop platforms, the controls will be smaller and
        // closer together (more dense) than on mobile platforms.
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      //全局 键盘下落
      builder: (context, child) => Scaffold(
        body: GestureDetector(
          onTap: () {
            FocusScopeNode focusScopeNode = FocusScope.of(context);
            if (!focusScopeNode.hasPrimaryFocus &&
                focusScopeNode.focusedChild != null) {
              FocusManager.instance.primaryFocus.unfocus();
            }
          },
          child: child,
        ),
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}