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Lazy box library for Jetpack Compose, which allows to display lazy loaded items on the 2D plane.

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oleksandrbalan/minabox

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Mina Box

Lazy box library for Compose UI.

Mina box allows to display lazy loaded items on the 2D plane. It is build on the LazyLayout and provides methods to register item(s) and handles scrolling on the plane.

Multiplatform

Library supports Android, iOS, Desktop (Windows, MacOS, Linux) and Wasm targets.

Mina?

Maybe you are asking yourself why library has such a strange name? It is named after our family cat "Mina", and she is too damn lazy and likes to sit in the boxes, thus I think it matches perfectly this layout's purpose.

Usage

Get a dependency

Step 1. Add the MavenCentral repository to your build file. Add it in your root build.gradle.kts at the end of repositories:

allprojects {
    repositories {
        ...
        mavenCentral()
    }
}

Or in settings.gradle.kts:

dependencyResolutionManagement {
    repositories {
        ...
        mavenCentral()
    }
}

Step 2. Add the dependency. Check latest version on the releases page.

dependencies {
    implementation("io.github.oleksandrbalan:minabox:$version")
}

Use in Composable

The core element of the MinaBox layout is a content lambda, where items are registered in the similar manner as in LazyColumn or LazyRow. The main difference is that each item must provide its position and size in the layoutInfo lambda. Each item could be locked horizontally or vertically to create pinned rows and / or columns of data. The item size could be defined absolutely (in pixels) or relatively to parent size.

val columns = 10
val rows = 10
val width = 128f // pixels
val height = 64f // pixels
MinaBox {
    items(
        count = columns * rows,
        layoutInfo = {
            MinaBoxItem(
                x = width * (it % columns),
                y = height * (it / columns),
                width = width,
                height = height,
            )
        }
    ) { index ->
        Text(text = "#$index")
    }
}

See Demo application and examples for more usage examples.

More usages

There are two libraries which are build on top of the Mina Box layout:

  • LazyTable - displays columns and rows of data on the two directional plane.
  • ProgramGuide - displays program guide data on the two directional plane.

Make sure to check them for tip & tricks if you want to build your own implementation.

Examples

Simple table with items aligned in columns and rows.

simple.mp4

⬡ Fancy hexagons ⬡.

hexagons.mp4

Lazy table with pinned columns & rows, check LazyTable library.

lazytable.mp4

Program Guide (aka EPG), check ProgramGuide library.

programguide.mp4

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Lazy box library for Jetpack Compose, which allows to display lazy loaded items on the 2D plane.

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