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Discover how to create a `Text` widget in Flutter with exactly two lines of text, regardless of content length, using simple coding techniques.
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This video is based on the question https://stackoverflow.com/q/70766513/ asked by the user 'rupinderjeet' ( https://stackoverflow.com/u/3682535/ ) and on the answer https://stackoverflow.com/a/70767048/ provided by the user 'Maurice Raguse' ( https://stackoverflow.com/u/376967/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Create a Text Widget with Exactly Two Lines of Text in Flutter

Creating a user-friendly interface in your Flutter application often involves managing how text is displayed. One common problem developers encounter is ensuring that a Text widget contains exactly two lines, regardless of the length of the text. This guide will explore how to create a Text widget in Flutter that consistently adheres to this requirement.

The Challenge

When you want to restrict a text widget to a specific number of lines, you usually think about setting a maximum line count. However, in some cases, you may want to display only two lines of text even if the text content is short, long, or even contains new line characters. Flutter provides a simple way to implement this behavior, but it might initially seem confusing to piece together the right solution.

Understanding the Solution

1. Using the maxLines Property

Flutter's Text widget has a maxLines parameter that you can set to restrict the number of lines displayed. For our purpose, you would set it to 2, as shown below:

[[See Video to Reveal this Text or Code Snippet]]

In this case:

subtitle is the text that you want to display.

maxLines: 2 restricts the Text widget to two lines only.

2. Handling Short Texts

One of the challenges is how to ensure that the Text widget remains two lines tall, even with shorter text. To mimic this behavior, you can add additional line breaks. The following method helps you append new line characters between text:

[[See Video to Reveal this Text or Code Snippet]]

3. Implementation

You can use the above function in conjunction with the Text widget like this:

[[See Video to Reveal this Text or Code Snippet]]

In this implementation:

The withExtraNextLineCharacters function will add one extra new line character to ensure that even a short subtitle appears to fill two lines.

maxLines: 2 will enforce the display to show a maximum of two lines, effectively cutting off anything beyond that while showing the extra lines.

Conclusion

By cleverly using the maxLines property along with a method that adds extra new lines, you can produce a Text widget that maintains a consistent height of two lines, providing a uniform appearance regardless of the text length. Implementing these techniques in your Flutter projects can significantly improve your application's usability and aesthetics.

This method delivers a simple, elegant approach to handle text display challenges in Flutter. With a few lines of code, you can create a visually appealing and user-friendly interface that adapts to various text lengths.

Happy coding!