text: import React from 'react';
  import { StyleSheet, Platform, Image, Text, View, ScrollView, TextInput, Button } from 'react-native';
  import LoginForm from '../components/LoginForm'
  
  export default class Login extends React.Component {
    _login() {
      this.props.navigation.navigate("AppTab")
    }
  
    render() {
      return (
        <View style={styles.container}>
          <LoginForm login={()=> this._login() }/>
        </View>
      );
    }
  }
  
  const styles = StyleSheet.create({
    container: {
      flex: 1,
      justifyContent: 'center',
      alignItems: 'center',
      backgroundColor: '#F5FCFF',
    },
  });
  