Welcome to the world of Re-Editor! If you are looking to incorporate a lightweight text and code editor into your Flutter projects, look no further. Re-Editor, a module from the Reqable project, is designed to provide an enhanced editing experience for both plain text and code. This article will guide you through its features, setup process, and customization options. Let’s dive in!

What Makes Re-Editor Special?

Re-Editor is not just another text input widget. Unlike Flutter’s default TextField, it comes with a plethora of features tailored for complex editing tasks:

• Two-way horizontal and vertical scrolling
• Text syntax highlighting
• Content collapsing and expanding
• Input hints and auto-completion
• Search and replace functionality
• Custom context menu builder
• Shortcut keys support
• Large text display and editing
• Line numbers and focus line builder
• Smart input features

It’s designed for high performance and optimized specifically for large texts, which addresses many limitations found in other text input components.

Setting Up Re-Editor

To get started with Re-Editor, follow these simple steps:

1. Add the Re-Editor dependency to your pubspec.yaml file:

dependencies:
  re_editor: ^0.4.0

2. Utilize the CodeLineEditingController to create your multi-line input area. Here’s a basic example:

Widget build(BuildContext context) {
  return CodeEditor(
    controller: CodeLineEditingController.fromText("Hello Reqable"),
  );
}

Understanding Technical Features Through Analogy

Imagine building a customized library (Re-Editor) where you can easily find books (lines of code), create comfortable reading spaces (editor features), and even invite friends (other developers) to suggest new books (syntax highlighting rules) and organize events (context menus). Unlike a traditional library (TextField) where the only option is to read books from the shelf, your Re-Editor library allows you not only to read books, but also to edit, share, and expand your knowledge with various features, creating a rich and interactive experience.

Key Features to Explore

Text Syntax Highlighting

Re-Editor leverages Re-Highlight to provide syntax highlighting for nearly a hundred languages. Here’s how to set it up with JSON syntax:

CodeEditor(
  style: CodeEditorStyle(
    codeTheme: CodeHighlightTheme(
      languages: {
        "json": CodeHighlightThemeMode(mode: langJson),
      },
      theme: atomOneLightTheme,
    ),
  ),
);

Line Numbers and Code Folding

You can also display line numbers and enable code folding. Here’s a basic example:

CodeEditor(
  indicatorBuilder: (context, editingController, chunkController, notifier) => Row(
    children: [
      DefaultCodeLineNumber(controller: editingController, notifier: notifier),
      DefaultCodeChunkIndicator(controller: chunkController, notifier: notifier),
    ],
  ),
);

Advanced Features: Scroll Control, Search & Replace, and Shortcuts

Re-Editor allows you to implement features such as two-way scrolling, search and replace UI, and customizable keyboard shortcuts. Here’s how to handle scrolling:

CodeEditor(
  scrollController: CodeScrollController(
    verticalScroller: ScrollController(),
    horizontalScroller: ScrollController(),
  ),
);

Troubleshooting

Should you encounter issues while using Re-Editor, consider the following troubleshooting ideas:

• Make sure that the pubspec.yaml file is correctly configured and that all dependencies are installed.
• Check if your Re-Editor version is up to date.
• If syntax highlighting is not working, review the Re-Highlight documentation for potential configuration mistakes.
• For smooth scrolling and UI behavior, ensure that custom scroll controllers are properly implemented.

For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Final Thoughts

At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations. Now, go ahead and enhance your Flutter applications with the power of Re-Editor!