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All right, so now that we are finally down with the basics of Scotland, let's jump into jetpack compose

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and see what it has to offer and what it even is.

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So in the past couple of years, developing native Android applications has improved quite significantly,

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ranging from architecture improvements to the tools and libraries that help in speeding up development.

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But the way we create UI widgets and its interactions remains the same where we most times needs to

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have a layout built with XML and then an activity or fragment that we have to write with either Java

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or codling to interact with the user interface widgets in the layout.

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The good news is all of this changes with the newest UI framework Jetpack Compose.

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So Jetpack Compose is a declarative toolkit for creating high quality user interface components, making

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it easier and faster to write beautiful applications with less code.

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So there is no need for separate Exmor layouts or multiple activities.

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So just one activity that will serve as an entry point into the API is required.

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Composable functions are capable of building, maintaining and updating the user interface.

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And since XML files are no longer required, there's no need for find few bayad view binding or data

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mining, which each were quite complicated and cumbersome to a degree, while find few body was quite

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simple but had its flaws by itself.

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So all of those techniques, they were there and they served their purpose.

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But now it's time to have a better approach, which is jetpack compose.

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So Jetpack Compose is interoperable with the traditional way of developing Android applications and

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can be added to already existing projects while you migrate gradually to using composable only is just

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about a normal function with the at composable annotation.

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So we have this function my app here, where, for example, we have the greeting while we'll call the

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greeting function and pass.

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Welcome to tutorials you and we're going to see how this actually works in an actual application.

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We're going to build a bunch of composable.

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We're going to use existing composable but also build.

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Many of them are selves.

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We're even going to go as far as to build entirely custom composable that are going to be quite advanced

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and complex, but super powerful and not too difficult to understand because of the beauty of jetpack

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compose in general.

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So let's go ahead and see this in action.