fatihhcan

fun Equals(view: View) {
        var newCount=dataView.text.toString()
        var result:Double?=null
  //when işlemi ile operator butonların işlevlerini sağladık
        when(operator){
            "/"->{
                result=oldCount.toDouble()/newCount.toDouble()
            }
            "*"->{
                result=oldCount.toDouble()*newCount.toDouble()

fatihhcan

var operator = "*"
    var oldCount=""
    var newOperator=true
//operator butonlarımız
    fun btn_Operator(view: View) {
        var btn_Select= view as Button
        when(btn_Select.id){
            btn_Div.id->{
                operator="/"
            }

fatihhcan

fun btn_Click(view: View) {
  // if ile ekranı clear yapıyoruz
        if (newOperator){
            dataView.setText("")
        }
        newOperator=false
        //butonlarımız click yaptıgımızda ekranda islemleri gostermeyi sagliyoruz
        var btnSelect = view as Button
        var btnClickValue:String = dataView.text.toString()
        when(btnSelect.id){

fatihhcan

[
    {
        "Name": "Ada",
        "Surname": "Sayer",
        "Number": 10,
        "Gender": "Female",
        "School": {
            "Name": "ADU",
            "City": "Aydın",
            "Department": "MIS",

fatihhcan

Card(
                elevation: 4,
                margin: EdgeInsets.fromLTRB(10, 60, 10, 60),
                //EdgeInsets.only(left: 100, right: 100, top: 60, bottom: 60),
                child: Padding(
                  padding: const EdgeInsets.all(5.0),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: <Widget>[
                      Text(

fatihhcan

return Column(
              children: <Widget>[
                Padding(
                  padding: const EdgeInsets.only(
                      top: 40, bottom: 50, left: 20, right: 20),
                  child: Row(
                    children: <Widget>[
                      Column(
                        children: <Widget>[
                          Icon(

fatihhcan

return Padding(
              padding: const EdgeInsets.only(
                  top: 10, bottom: 10, left: 15, right: 15),
              child: Column(
                children: <Widget>[
                  ListTile(
                    title: Text(
                      "Personal",
                      style: TextStyle(
                        color: Color(0xff343572),