flutter-全局控制键盘收回和单独控制键盘收回

局部控制键盘收回

import 'package:flutter/material.dart';
import 'package:TLDF/main.dart';

class KeyboardBack {
  static BuildContext context = navigatorKey.currentState.overlay.context;
  static FocusScopeNode currentFocus = FocusScope.of(context);
  static void keyboardBack() {
    if (!currentFocus.hasPrimaryFocus && currentFocus.focusedChild != null) {
      FocusManager.instance.primaryFocus.unfocus();
    }
  }
}

//需要的地方执行
  KeyboardBack.KeyboardBack();

全局控制键盘收回

在main.dart
child: MaterialApp(
        title: KString.mainTitle,
        //Flutter商城
        debugShowCheckedModeBanner: false,
        navigatorKey: navigatorKey,
        onGenerateRoute: Application.router.generator,
        //主题
        theme: ThemeData(
            primaryColor: KColor.primaryColor,
            ///全局解决ios键盘默认颜色dark
            brightness: Brightness.light, //指定亮度主题，有白色/黑色两种可选。
            primaryColorBrightness: Brightness.light,
            accentColorBrightness: Brightness.light),
        home: SplashScreen(),
        navigatorObservers: [MyApp.routeObserver],
        //全局监听键盘
        builder: (context, child) => Scaffold(
          body: Listener(
            onPointerDown: (PointerDownEvent event){
              _event=event;
              print("按下"+_event.timeStamp.toString());
            },
            onPointerUp: (PointerUpEvent event) {
             int interval=event.timeStamp.inSeconds-_event.timeStamp.inSeconds;
　　　　　　　　//防止复制粘贴时触发
             if (interval<1) {
               FocusScopeNode currentFocus = FocusScope.of(context);
               if (!currentFocus.hasPrimaryFocus && currentFocus.focusedChild != null) {
                 FocusManager.instance.primaryFocus.unfocus();
               }
              }
            },
            child: child,
          ),
        ),