Replacing XML layouts with JetPack Compose in android
5 min readJul 25, 2024
Jetpack Compose is a modern tool for building Android UIs, simplifying and accelerating development with less code.
Some of Key features of Compose:
- Declarative UI: Define UI components in code rather than XML.
- Kotlin Integration: Write UI code in Kotlin, the same language used for app logic.
- Composable: Functions that define UI elements and update automatically with state changes.
- Theming: Simplified customization using Material Design components.
Basic Structure of Compose
An explanation of Composable functions
Composable functions are the basic building block of a UI.
Compose Annotations
Annotations are to attach extra information to code.
The following diagram is an example of annotated function:
In compose Annotations can take parameters. Parameters provide extra information to the tools processing them.
Below is the example of @Preview annotation for Compose with and without Arguments.
- @Preview()
- @Preview(showBackground…