text: /*import React, { Component } from 'react';
  import {View,
      Text,
      StyleSheet,
      TouchableOpacity,
  } from 'react-native';
  import CustomHeader from '../../components/Header/Header';
  
  class TabScreen3 extends Component{
  constructor(props){
      super(props);
  
  } 
       render(){
          return(
              <View> 
                  <CustomHeader 
                      title="TabScreen3"
                      openDrawer={() => this.props.navigation.openDrawer()}
                      iconName="md-checkmark-circle"
                  />
                  <Text> TabScreen3 </Text>
               </View>
           )
       }
  }
   
  export default TabScreen3;
  
  
  const styles = StyleSheet.create({
      container: {
          flex: 1,
          backgroundColor: '#fff',
          alignItems: 'center',
          justifyContent: 'center',
          },
  }); */