ritshpatidar

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "FlutterApp",
      home: Text("Hello World!"),

ritshpatidar

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "FlutterApp",
      home: Scaffold(

ritshpatidar

class MyCard extends StatelessWidget{
  const MyCard({Key key, this.h, this.w}) : super(key:key);
  final double h,w;

  @override
  Widget build(BuildContext context){
    return Card(
      child: Container(
        width: w,
        height: h

ritshpatidar

class MyWidget extends StatefulWidget{
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget>{
  int num = 0;
  @override
  Widget build(BuildContext context){
    return Row(
      children: <Widget>[

ritshpatidar

class _MyHomePageState extends State<MyHomePage> {
  static const platform = const MethodChannel('ourproject.sendstring');
  String receivedString = "";

  Future<void> callNativeFunction() async {
    String msg = "Hello from Flutter",data="";
    try {
      final String temp = await platform.invokeMethod('callSendStringFun',{"arg":msg});
      data = temp;
    } on PlatformException catch (e) {

ritshpatidar

package com.example.ourproject

import android.os.Bundle
import io.flutter.plugin.common.MethodChannel
import android.widget.Toast
import io.flutter.app.FlutterActivity
import io.flutter.plugins.GeneratedPluginRegistrant

class MainActivity: FlutterActivity() {
	private val CHANNEL = "ourproject.sendstring"

ritshpatidar

package com.example.ourproject;

import android.os.Bundle;
import io.flutter.app.FlutterActivity;
import io.flutter.plugins.GeneratedPluginRegistrant;
import android.widget.Toast;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
import io.flutter.plugin.common.MethodChannel.Result;

ritshpatidar

//Put this code in the class which extens State class

static const platform = const MethodChannel('samples.flutter.dev/filesChannel'); //used to connect with Java/Kotlin
List<dynamic> fileNames = <dynamic>[];

Future<void> _invokeNativeFun(int flag) async {
    String s;
      try {
          if(flag == 0)
            fileNames = await platform.invokeMethod('getNames'); //getNames function called from Kotlin/Java

ritshpatidar

//A code for article published at calloftechies.com

private fun getNames() : ArrayList<String?>{
      var files = myDirectory.listFiles()
      val fileNames : ArrayList<String?> = ArrayList()
      for(file in files){
        fileNames.add(file.getName())
      }
      return fileNames
}

ritshpatidar

#How to get contingency table
import pandas as pd

#Read the csv data file
data = pd.read_csv('train.csv')

#Getting 'Embarked' feature values without null value
embarked = data[pd.notnull(data['Embarked'])]['Embarked']

#Getting 'Survival' feature values correponding to 'Embarked'