在onPress中调用2函数(导航和提交表单)

import { createStackNavigator } from 'react-navigation';

const Home = ({ navigation }) => {
  // 导航函数
  const navigateToForm = () => {
    navigation.navigate('Form');
  };

  return (
    // ...
    <Button onPress={navigateToForm} title="Go to Form" />
    // ...
  );
};

const Form = ({ navigation }) => {
  // 提交表单函数
  const submitForm = () => {
    // 表单提交逻辑
  };

  return (
    // ...
    <Button onPress={submitForm} title="Submit Form" />
    // ...
  );
};

const AppNavigator = createStackNavigator({
  Home: { screen: Home },
  Form: { screen: Form },
});

export default createAppContainer(AppNavigator);

import { AppRegistry } from 'react-native';
import App from './App';

AppRegistry.registerComponent('MyApp', () => App);