ipondroid

extension NumberParsing on String {
  int parseInt() {
    return int.parse(this);
  }

  double parseDouble() {
    return double.parse(this);
  }
}

ipondroid

Text("Plain TextField:$_field1text"),
TextField(
  onChanged: (text) {
    setState(() {
      _field1text = text;
    });
  },
)

ipondroid

TextField(
  cursorColor: Colors.red,
  cursorWidth: 4.0,
  maxLength: 10,
  obscureText: true,
  onChanged: (text) {
    print(text);
  },
  onSubmitted: (text) {
    print('Submitted:$text');

ipondroid

@override
Widget build(BuildContext context) {
  return Scaffold(
      appBar: AppBar(
        title: Text('DataTable Demo'),
      ),
      body: SingleChildScrollView(
        scrollDirection: Axis.horizontal,
        child: SingleChildScrollView(
          child: _getDataTable(),

ipondroid

List<String> csvRows;
List<String> csvHeadingRow;

@override
void initState() {
  super.initState();
  List<String> csvSplit = widget.csvString.split('\n');
  csvHeadingRow = csvSplit[0].split(',');
  csvSplit.removeAt(0);
  csvRows = csvSplit;

ipondroid

DataTable(
    columns: [
        DataColumn(label: Text('A')),
        DataColumn(label: Text('B')),
    ],
    rows: [
        DataRow(
        	cells: [
            	DataCell(Text('A1')),
                DataCell(Text('B1')),

ipondroid

DragTarget(
    builder: (context, List<FlutterLogoColor> candidateData, rejectedData) {
        return Container(
            height: 50.0,
            width: 50.0,
            decoration: BoxDecoration(
                color: Colors.yellow[600],
                shape: BoxShape.circle
            ),
            child: Icon(Icons.delete, size: 40, color: Colors.white70,),

ipondroid

Draggable(
    child: FlutterLogo(size: 50.0, colors: Colors.red,),
    feedback: FlutterLogo(size: 50.0, colors: Colors.red,),
    childWhenDragging: FlutterLogo(colors: Colors.blueGrey, size: 50.0,),
    data: FlutterLogoColor.red,
)

ipondroid

void future_dowhile() {
  final nums = [1, 2, 3, 4, 5];
  var sum = 0;
  var count = 0;

  Future.doWhile(() {
    print('count:$count');
    if (count == nums.length) {
      return false;
    } else {

ipondroid

void future_wait(String url1, String url2) {
  Future.wait([
      http.get(url1),
      http.get(url2),
      Future.error('Future.error()'),
    ],
    cleanUp: (value) { print('CleanUp() : ${value?.statusCode}'); }
  ).then((value) {
    for (var f in value) {
      print('statusCode: ${f?.statusCode}');