Building Flipcash and Sharpen (McGraw Hill)

Brandon McAnsh bmc08gt

Building Flipcash and Sharpen (McGraw Hill)

Freelance Android Engineer and SaaS builder

bmc08gt / EstimationTest.kt

Last active November 5, 2025 02:19

CSV table comparison test

	@Test
	fun `estimate csv table`() {
	val startValue = 10_000L
	val endValue = 1_000_000_000_000_000L

	val output = buildString {
	appendLine("value locked,payment value,payment quarks,sell value")
	var valueLocked = startValue
	while (valueLocked <= endValue) {
	val (circulatingSupply, _) = Estimator.buy(

bmc08gt / 1_Keyboard.kt

Last active May 13, 2025 13:34

KMP Software Keyboard Controller

	import androidx.compose.runtime.Composable
	import androidx.compose.runtime.getValue
	import androidx.compose.runtime.mutableStateOf
	import androidx.compose.runtime.setValue
	import androidx.compose.ui.platform.SoftwareKeyboardController
	import kotlinx.coroutines.CoroutineScope
	import kotlinx.coroutines.delay
	import kotlinx.coroutines.launch

	public abstract class KeyboardController(

bmc08gt / Column.kt

Last active July 22, 2024 14:59

reversible Column layout

	@Composable
	public fun Column(
	modifier: Modifier = Modifier,
	reverseLayout: Boolean = false,
	verticalArrangement: Arrangement.Vertical = Arrangement.Top,
	horizontalAlignment: Alignment.Horizontal = Alignment.Start,
	content: @Composable () -> Unit
	) {
	SubcomposeLayout(modifier) { constraints ->
	val density = Density(density)

bmc08gt / 00_ComposeViewController.kt

Last active March 29, 2024 20:15

Compose UI component in SwiftUI that respects intrinsic sizing

	private fun measuredViewController(
	onMeasured: (Double, Double) -> Unit,
	content: @Composable () -> Unit,
	): UIViewController = ComposeUIViewController {
	Box(
	modifier = Modifier.onGloballyPositioned {
	onMeasured(it.size.width.toDouble(), it.size.height.toDouble())
	},
	) {
	content()

bmc08gt / gist:ff600c505c4a41ce3a66ac513909c003

Created March 8, 2024 23:58

Xcode Crash Pod dependent on a KMM XCFramework

bmc08gt / Kotlin+Gif.kt

Created February 22, 2024 04:49

SwiftyGif Kotlin Style

	import kotlinx.coroutines.CoroutineScope
	import kotlinx.coroutines.Dispatchers
	import kotlinx.coroutines.launch
	import kotlinx.coroutines.suspendCancellableCoroutine
	import platform.CoreFoundation.CFDataRef
	import platform.CoreGraphics.CGImageRef
	import platform.Foundation.CFBridgingRelease
	import platform.Foundation.CFBridgingRetain
	import platform.Foundation.NSData
	import platform.Foundation.NSDictionary

bmc08gt / SettingsSection.kt

Created December 14, 2023 17:29

SettingsSectionScope

	interface SettingsSectionScope {
	fun item(
	icon: ImageVector? = null,
	title: String,
	subtitle: String? = null,
	endSlot: @Composable () -> Unit = { },
	onClick: (() -> Unit)? = null,
	)

	@Composable

bmc08gt / 1_Screen.kt

Last active December 6, 2023 17:45

FKScaffold with accessory view triggers

	FKScaffold(
	modifier = Modifier.fillMaxSize(),
	topBar = {
	FKLargeTopAppBar(title = name)
	},
	) { padding, triggerAccessoryView ->
	ItemForm(
	modifier = Modifier.padding(top = padding.calculateTopPadding()),
	state = state,
	dispatch = viewModel::dispatchEvent

bmc08gt / IntSize.kt

Created December 5, 2023 15:31

M.measured {}

	import androidx.compose.ui.unit.Density
	import androidx.compose.ui.unit.DpSize
	import androidx.compose.ui.unit.IntSize

	fun IntSize.toDp(density: Density): DpSize = with(density) { DpSize(width = width.toDp(), height = height.toDp()) }

bmc08gt / 1_parent.kt

Last active December 4, 2023 14:22

Parent shared component with own VM

	@Composable
	fun ActionMenuContentDecorator(
	modifier: Modifier = Modifier,
	viewModel: ActionMenuViewModel = hiltViewModel(),
	content: @Composable () -> Unit, // A
	// content: @Composable (PaddingValues) -> Unit, // B
	) {
	val state by viewModel.stateFlow.collectAsStateWithLifecycle()

	// some parent container type (Scaffold, ModalBottomSheetLayout, etc.)