From the course: Android Compose with Kotlin

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Introduction to Semantics in Compose

Introduction to Semantics in Compose - Kotlin Tutorial

From the course: Android Compose with Kotlin

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Introduction to Semantics in Compose

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- [Instructor] The Compose UI tree represents how the UI is structured and drawn on the screen. It contains composables and their properties, such as size, colors, and layouts, an essential aspect of the Compose framework. However, it's time for us to talk about a different tree, the semantics tree. The semantics tree consists of the various nodes on the screen. A node is things like buttons, texts, icons, and more. Here, we have the semantics node for the Speakers tab. It has various properties to describe this element, the role, focus state, and available user actions. Therefore, if we were to define semantics, we could say semantics provides meaning to elements, like descriptions, states, and actions users can take. It doesn't control how things look, but it helps accessibility tools describe your app and lets testing frameworks interact with it. If your app consists of composables and modifiers from the Compose Foundation and Material library, then a semantics tree is generated…

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