Programming Tutorials

Introduction In modern Android app development, Jetpack Compose has gained significant traction as a declarative UI toolkit, enabling developers to create user interfaces more efficiently. One of the standout features of Jetpack Compose is the ability to integrate legacy views, such as those built with View classes from the Android framework, into Compose's declarative system. This is made possible by the AndroidView composable function, which bridges the gap between traditional View components and Jetpack Compose layouts. In this article, we will explore a practical example that demonstrates the use of the AndroidView modifier in Jetpack Compose. This example integrates a traditional TextView inside a Jetpack Compose UI, wraps it with modern Compose modifiers such as border , background , and clip , and displays it within a Box layout. By the end, you'll understand how to combine classic Android Views with Compose elements seamlessly. The MainActivity and Scaffold Setup...

Introduction This Android Kotlin example demonstrates how to handle click events in Jetpack Compose using the AndroidView composable to integrate traditional Android Views within a Compose-based UI. Specifically, the code showcases how to integrate a MaterialButton and a standard Button to manipulate a counter. As Jetpack Compose represents a modern, declarative way of building UI on Android, this example highlights its interoperability with existing Android Views, making it easier for developers to transition or combine both approaches. The focus of this example is on providing a clear and modular structure using Kotlin's Compose framework, scaffolding layout components, and creating a simple user interaction with a counter system that increases or decreases based on button clicks. Activity Setup In the MainActivity , the onCreate method is overridden to set the content of the activity using setContent { GetScaffold() } . This method is essential for initializing the Jetpack C...

This code snippet showcases the Jetpack Compose way of updating an existing Android View. Here's a breakdown of the code: The setContent method sets the content of the Activity using a Composable function. In this example, the GetScaffold composable is set as the content. The GetScaffold composable function creates a Scaffold layout, which is a common layout structure in Jetpack Compose. It includes a TopAppBar, content area, and a background color. The TopAppBar composable function creates the app bar section at the top of the screen. It displays the title 'Compose - Update AndroidView' and sets the background color to 0xFFC0E8D5 (a light green shade). The MainContent composable function defines the content area of the Scaffold. It uses a Column layout to arrange its child composables vertically in the center of the screen. An AndroidView composable is used to integrate an existing TextView from the Android View system. The update block is used to mod...