小编Sha*_*mal的帖子

我们可以使用单个关键字而不是 '' import { Text, TextInput, Button, StyleSheet, View } from 'react-native'; “在本机反应中？对于“文本、文本输入、按钮、样式表、视图”，是否有可用的单关键字选项？

import { Button, StyleSheet, View } from 'react-native';

export default class ButtonBasics extends Component {
  _onPressButton() {
    alert('You tapped the button!')
  }

  render() {
    return (
      <View style={styles.container}>

        <View style={styles.buttonContainer}>
          <Button
            onPress={this._onPressButton}
            title="Press Me"
            color="#841584"
          />
        </View>
        <View style={styles.alternativeLayoutButtonContainer}>
          <Button
            onPress={this._onPressButton}
            title="This looks great!"
          />

        </View>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
   flex: 1,
   justifyContent: 'center',
  },
  buttonContainer: {
    margin: 20
  },
  alternativeLayoutButtonContainer: …

错误：flutter/shell/gpu/gpu_surface_gl.cc(70)] 无法设置 Skia Gr 上下文。连接服务协议时出错：无法连接到http://127.0.0.1:50930/6r2skviwLRI=/

 
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        
        primarySwatch: Colors.blue,
        
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

这是防火墙还是杀毒软件的问题？