| 1 | // Copyright 2014 The Flutter Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
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| 3 | // found in the LICENSE file. |
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| 4 | |
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| 5 | // This example shows how to show the text 'Hello, world.' using the underlying |
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| 6 | // render tree. |
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| 7 | |
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| 8 | import 'package:flutter/rendering.dart'; |
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| 9 | |
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| 10 | import 'src/binding.dart'; |
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| 11 | |
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| 12 | void main() { |
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| 13 | // We use ViewRenderingFlutterBinding to attach the render tree to the window. |
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| 14 | ViewRenderingFlutterBinding( |
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| 15 | // The root of our render tree is a RenderPositionedBox, which centers its |
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| 16 | // child both vertically and horizontally. |
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| 17 | root: RenderPositionedBox( |
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| 18 | // We use a RenderParagraph to display the text 'Hello, world.' without |
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| 19 | // any explicit styling. |
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| 20 | child: RenderParagraph( |
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| 21 | const TextSpan(text: 'Hello, world.' ), |
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| 22 | // The text is in English so we specify the text direction as |
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| 23 | // left-to-right. If the text had been in Hebrew or Arabic, we would |
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| 24 | // have specified right-to-left. The Flutter framework does not assume a |
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| 25 | // particular text direction. |
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| 26 | textDirection: TextDirection.ltr, |
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| 27 | ), |
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| 28 | ), |
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| 29 | ).scheduleFrame(); |
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| 30 | } |
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| 31 | |
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