How do I import Dart io?

Create a “main” library file directly under lib, lib/<package-name>. dart , that exports all of the public APIs. This allows the user to get all of a library’s functionality by importing a single file. The lib directory might also include other importable, non-src, libraries.

First you’ll play with the Dart language in your browser, no download required. Then you’ll install the Dart SDK, write a small program, and run that program using the Dart VM.

To use, simply select layer(s) you want to export, click “Export”, then run the Flutter Export plugin and select “Export PNG” . After reviewing the preview, you can save a ZIP file containing the exported layers in PNG format at 1x, 1.5x, 2x, 3x, and 4x, ready to drop into your Flutter project.

Dart provides the part keyword to allow you to split code into separate files in a library . It’s used in the same file as the library keyword and needs to provide a relative path to the other source files that make up the library: for example, part “functions. dart”; .