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It adopts a declarative approach, enabling developers to build UI components using Kotlin code instead of XML. Compose leverages the power of Kotlin's language features and functional programming, making UI development faster, more intuitive, and less error-prone.

The Compose framework can intelligently recompose only the components that changed. Every time the button is clicked, the caller updates the value of clicks . Compose calls the lambda with the Text function again to show the new value; this process is called recomposition.

We can't force a composable function to recompose. This is handled by Compose framework itself when a state input of composable is changed. Move calculation & heavy operation out of composable. Recomposition can happen frequently, so move critical operations out of composable or use remember .

Recomposition is when Jetpack Compose re-executes the composables that may have changed in response to state changes, and then updates the Composition to reflect any changes. A Composition can only be produced by an initial composition and updated by recomposition.

The solution here is to provide item keys. Providing a stable key for each item lets Compose avoid unnecessary recompositions. In this case, Compose can see that the item now at spot 3 is the same item that used to be at spot 2. Since none of the data for that item has changed, Compose doesn't have to recompose it.

Recomposition is when Jetpack Compose re-executes the composables that may have changed in response to state changes, and then updates the Composition to reflect any changes. A Composition can only be produced by an initial composition and updated by recomposition.

To create a new project that has Compose setup correctly, proceed as follows: If you're in the Welcome to Android Studio window, click Start a new Android Studio project. ... In the Select a Project Template window, select Empty Compose Activity and click Next. In the Configure your project window, do the following:

Q7: A Compose function requires the @Composable annotation. This is the correct answer. The @Composable annotation tells the compiler that the function can be used to create UI elements. It also enables features such as state management and recomposition.