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// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Template: dev/snippets/config/templates/stateless_widget_scaffold.tmpl
//
// Comment lines marked with "▼▼▼" and "▲▲▲" are used for authoring
// of samples, and may be ignored if you are just exploring the sample.
// Flutter code sample for InteractiveViewer.constrained
//
//***************************************************************************
//* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker)
// This example shows how to create a pannable table. Because the table is
// larger than the entire screen, setting `constrained` to false is necessary
// to allow it to be drawn to its full size. The parts of the table that
// exceed the screen size can then be panned into view.
//* ▲▲▲▲▲▲▲▲ description ▲▲▲▲▲▲▲▲ (do not modify or remove section marker)
//***************************************************************************
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
/// This is the main application widget.
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
static const String _title = 'Flutter Code Sample';
@override
Widget build(BuildContext context) {
return MaterialApp(
title: _title,
home: Scaffold(
appBar: AppBar(title: const Text(_title)),
body: const MyStatelessWidget(),
),
);
}
}
/// This is the stateless widget that the main application instantiates.
class MyStatelessWidget extends StatelessWidget {
const MyStatelessWidget({Key? key}) : super(key: key);
@override
//********************************************************************
//* ▼▼▼▼▼▼▼▼ code ▼▼▼▼▼▼▼▼ (do not modify or remove section marker)
Widget build(BuildContext context) {
const int _rowCount = 48;
const int _columnCount = 6;
return InteractiveViewer(
alignPanAxis: true,
constrained: false,
scaleEnabled: false,
child: Table(
columnWidths: <int, TableColumnWidth>{
for (int column = 0; column < _columnCount; column += 1)
column: const FixedColumnWidth(200.0),
},
children: <TableRow>[
for (int row = 0; row < _rowCount; row += 1)
TableRow(
children: <Widget>[
for (int column = 0; column < _columnCount; column += 1)
Container(
height: 26,
color: row % 2 + column % 2 == 1
? Colors.white
: Colors.grey.withOpacity(0.1),
child: Align(
alignment: Alignment.centerLeft,
child: Text('$row x $column'),
),
),
],
),
],
),
);
}
//* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker)
//********************************************************************
}