Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “Here’s how we could use the Align widget to achieve the same effect.”

A block of code is set as follows:

    Container(
      constraints: BoxConstraints.tight(
        const Size(200, 100),
      ),
      color: Colors.red,
      child: const Text('Hello World'),
    );

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

    Container(
      alignment: Alignment.center,
      constraints: BoxConstraints.tight(
        const Size(200, 100),
      ),
      color: Colors.red,
      child: const Text('Hello World'),
    );

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “Select System info from the Administration panel.”

Tips or important notes

Appear like this.