What does the Flutter app do?

What is Flutter? Flutter is Google’s portable UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase . Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.

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What is layout builder in Flutter?

In Flutter, LayoutBuilder Widget is similar to the Builder widget except that the framework calls the builder function at layout time and provides the parent widget’s constraints . This is useful when the parent constrains the child’s size and doesn’t depend on the child’s intrinsic size.

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