How do I download API file from flutter?

You can use flutter_downloader – to download and open the file, path_provider – to access device paths and permission_handler – to handle the device storage permissions . Please customize the following example to download the PDF file and open it in your project. It’s taken from flutter_downloader example.

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What is DART UI?

Built-in types and core primitives for a Flutter application . To use, import dart:ui . This library exposes the lowest-level services that Flutter frameworks use to bootstrap applications, such as classes for driving the input, graphics text, layout, and rendering subsystems.

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