flutter/examples/layers/rendering/hello_world.dart
Alexandre Ardhuin 387f885481
Add missing trailing commas (#28673)
* add trailing commas on list/map/parameters

* add trailing commas on Invocation with nb of arg>1

* add commas for widget containing widgets

* add trailing commas if instantiation contains trailing comma

* revert bad change
2019-03-01 08:17:55 +01:00

30 lines
1.1 KiB
Dart

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This example shows how to show the text 'Hello, world.' using the underlying
// render tree.
import 'package:flutter/rendering.dart';
void main() {
// We use RenderingFlutterBinding to attach the render tree to the window.
RenderingFlutterBinding(
// The root of our render tree is a RenderPositionedBox, which centers its
// child both vertically and horizontally.
root: RenderPositionedBox(
alignment: Alignment.center,
// We use a RenderParagraph to display the text 'Hello, world.' without
// any explicit styling.
child: RenderParagraph(
const TextSpan(text: 'Hello, world.'),
// The text is in English so we specify the text direction as
// left-to-right. If the text had been in Hebrew or Arabic, we would
// have specified right-to-left. The Flutter framework does not assume a
// particular text direction.
textDirection: TextDirection.ltr,
),
),
);
}