将道具传递给tabNavigator的屏幕

import { createAppContainer } from 'react-navigation';
import { createBottomTabNavigator } from 'react-navigation-tabs';

// 定义屏幕组件
const ScreenA = ({ navigation }) => {
  const propA = navigation.getParam('propA', ''); // 获取传递的道具
  return (
    // 屏幕A的内容
  );
};

const ScreenB = ({ navigation }) => {
  const propB = navigation.getParam('propB', ''); // 获取传递的道具
  return (
    // 屏幕B的内容
  );
};

// 创建tab导航器
const TabNavigator = createBottomTabNavigator({
  ScreenA: {
    screen: ScreenA,
    navigationOptions: ({ navigation }) => ({
      tabBarLabel: 'Screen A',
      // 传递道具propA
      tabBarOnPress: ({ defaultHandler }) => {
        navigation.navigate('ScreenA', { propA: 'Value for propA' });
        defaultHandler();
      },
    }),
  },
  ScreenB: {
    screen: ScreenB,
    navigationOptions: ({ navigation }) => ({
      tabBarLabel: 'Screen B',
      // 传递道具propB
      tabBarOnPress: ({ defaultHandler }) => {
        navigation.navigate('ScreenB', { propB: 'Value for propB' });
        defaultHandler();
      },
    }),
  },
});

// 创建App容器并导出
export default createAppContainer(TabNavigator);