Devfest 2021 Jetpack Compose Lottery App

in_build.gradle

android {
    // ...
    buildFeatures {
        compose = true
    }
    composeOptions {
        kotlinCompilerExtensionVersion = '1.0.4'
    }
    
}

dependencies {
 
    implementation 'androidx.compose.ui:ui:1.0.4'
    // Tooling support (Previews, etc.)
    implementation 'androidx.compose.ui:ui-tooling:1.0.4'
    // Foundation (Border, Background, Box, Image, Scroll, shapes, animations, etc.)
    implementation 'androidx.compose.foundation:foundation:1.0.4'
    // Material Design
    implementation 'androidx.compose.material:material:1.0.4'
    // Material design icons
    implementation 'androidx.compose.material:material-icons-core:1.0.4'
    implementation 'androidx.compose.material:material-icons-extended:1.0.4'
    // Integration with activities
    implementation 'androidx.activity:activity-compose:1.4.0'
  
    // ...
}

LottoTheme.kt

@Composable
fun LottoTheme(
    content : @Composable () -> Unit
) {

    MaterialTheme(
        content = content
    )

}

MainActivity.kt

class MainActivity : ComponentActivity() {
  
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
          
        }
    }

}