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Aidan McWilliams Aidanvii7

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@Aidanvii7
Aidanvii7 / NavGraph.kt
Last active October 17, 2021 12:38
Navigate with Parcelable arguments in Jetpack Compose
composable(route = "screen_1") {
Button(
onClick = {
navController.navigate(
route = "screen_2",
args = parcelableArgs {
arg { MyParcelableArgument() }
arg("named") { MyParcelableArgument() }
},
)
@Aidanvii7
Aidanvii7 / CollectAsStateWithLifecycle.kt
Created August 4, 2021 09:17
CollectAsState extensions for lifecycle awareness
@file:Suppress("PackageDirectoryMismatch")
package androidx.compose.runtime
import androidx.compose.ui.platform.LocalLifecycleOwner
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.Lifecycle.State.CREATED
import androidx.lifecycle.Lifecycle.State.STARTED
import androidx.lifecycle.flowWithLifecycle
import kotlinx.coroutines.flow.Flow
@Aidanvii7
Aidanvii7 / NavControllerComposeUtils.kt
Last active August 13, 2023 16:38
Compose Navigation with Parcelable arguments
@file:Suppress("UnnecessaryVariable", "PackageDirectoryMismatch")
package androidx.navigation
import android.os.Bundle
import android.os.Parcelable
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
fun NavController.navigate(
@Aidanvii7
Aidanvii7 / FlowToState.kt
Last active July 12, 2021 20:35
Transforming Flow types to State in a lifecycle aware way
import androidx.compose.runtime.Composable
import androidx.compose.runtime.State
import androidx.compose.runtime.collectAsState
import androidx.compose.runtime.remember
import androidx.compose.ui.platform.LocalLifecycleOwner
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.Lifecycle.State.CREATED
import androidx.lifecycle.Lifecycle.State.STARTED
import androidx.lifecycle.flowWithLifecycle
import kotlinx.coroutines.flow.Flow
@Aidanvii7
Aidanvii7 / GuardUtils.kt
Last active December 13, 2020 17:57
@file:OptIn(ExperimentalTypeInference::class)
@file:Suppress("unused")
import kotlin.experimental.ExperimentalTypeInference
inline fun <reified R> R.unless(@BuilderInference block: Guarded<R>.() -> Any?): R =
try {
val result = Guarded<R>().block()
result as? R ?: this
} catch (e: Guarded.BreakGuardWithResult) {
@Aidanvii7
Aidanvii7 / ContactViewModel.kt
Last active October 17, 2020 21:01
A `StateFlow` builder that can subscribe to other StateFlows that are read within the builder block. This is intended for deriving state from one or more other states.
@OptIn(ExperimentalCoroutinesApi::class)
class ContactViewModel() : ViewModel() {
val firstName = MutableStateFlow("")
val lastName = MutableStateFlow("")
val fullName by DerivedStateFlow {
"${+::firstName} ${+::lastName}"
}
}
@Aidanvii7
Aidanvii7 / BundleExtensions.kt
Last active October 1, 2021 09:56
A Kotlin way to use Android Bundles. Offers type safety unlike android ktx's version of bundleOf
import android.os.Bundle
import android.os.Parcelable
import android.util.Size
import java.io.Serializable
typealias BundleContext = Bundle.() -> Unit
/**
* ```
* fun example(someParcelable: Parcelable, someOtherBundle: Bundle) {
@Aidanvii7
Aidanvii7 / AppFeaturesExtension.kt
Created July 17, 2020 08:00
Companion code for https://medium.com/@aidan.vii/extension-classes-f9dcf5878b71
fun main() {
FakeAppFeatures {
if (SomeFeature.enabled) {
println("some feature is enabled!")
}
}
}
sealed class Feature
object SomeFeature : Feature()
@Aidanvii7
Aidanvii7 / SpinnerBindingAdapters.kt
Last active March 7, 2020 11:36
Binding adapter for Android Spinner view when using https://github.com/Aidanvii7/Toolbox
import android.view.View
import android.widget.AdapterView
import android.widget.ArrayAdapter
import android.widget.Spinner
import androidx.databinding.BindingAdapter
import androidx.databinding.InverseBindingAdapter
import androidx.databinding.InverseBindingListener
import com.aidanvii.toolbox.databinding.getTrackedValue
import com.aidanvii.toolbox.databinding.trackValue
@Aidanvii7
Aidanvii7 / MutableNode.kt
Created October 15, 2019 01:13
Binary Tree
import java.util.ArrayDeque
fun mutableNode(
value: Int,
left: MutableNode? = null,
right: MutableNode? = null
) = MutableNode(value, left, right)
data class MutableNode(
val value: Int,