ElianFabian’s gists

ElianFabian / Example.kt

Last active September 15, 2024 14:15

A interface to share string resources from domain layer to presentation layer. Based on: https://github.com/philipplackner/UniversalStringResources/blob/final/app/src/main/java/com/plcoding/universalstringresources/UiText.kt

	// Validation functions that returns a lists of error messages as UiText.

	private const val ValidPasswordSpecialCharacters = "!?\$&#._-"
	private const val ValidUsernameSpecialCharacters = "$&._-"
	private const val MinDigitCount = 1
	private const val MinSpecialCharacterCount = 1
	private const val MinPasswordLength = 8
	private const val MaxPasswordLength = 25
	private const val MinUsernameLength = 2
	private const val MaxUsernameLength = 25

ElianFabian / ViewScope.kt

Created October 9, 2023 16:47

A scope to launch coroutines in views.

	import android.view.View
	import androidx.lifecycle.Lifecycle
	import androidx.lifecycle.LifecycleEventObserver
	import androidx.lifecycle.LifecycleOwner
	import androidx.lifecycle.findViewTreeLifecycleOwner
	import kotlinx.coroutines.CoroutineScope
	import kotlinx.coroutines.Dispatchers
	import kotlinx.coroutines.SupervisorJob
	import kotlinx.coroutines.cancel
	import kotlinx.coroutines.launch

ElianFabian / MainActivity.kt

Last active April 29, 2024 21:56

An interface that allows to work with Fragment arguments and events in a type-safe and process-death-safe way using extension functions.

	import android.os.Bundle
	import android.widget.Toast
	import androidx.appcompat.app.AppCompatActivity

	class MainActivity : AppCompatActivity() {
	override fun onCreate(savedInstanceState: Bundle?) {
	super.onCreate(savedInstanceState)

	setContentView(R.layout.activity_main)

ElianFabian / AnimationFlowExt.kt

Created October 11, 2023 20:26

Several flow operators to animate kotlin flows in Android.

	@file:Suppress("NOTHING_TO_INLINE")

	import android.animation.ArgbEvaluator
	import android.animation.TimeInterpolator
	import android.animation.TypeEvaluator
	import android.animation.ValueAnimator
	import android.view.animation.LinearInterpolator
	import kotlinx.coroutines.channels.awaitClose
	import kotlinx.coroutines.flow.Flow
	import kotlinx.coroutines.flow.callbackFlow

ElianFabian / RecyclervViewExt.kt

Last active May 12, 2024 18:37

Several View extension functions.

	import androidx.recyclerview.widget.LinearLayoutManager
	import androidx.recyclerview.widget.RecyclerView
	import kotlinx.coroutines.channels.awaitClose
	import kotlinx.coroutines.flow.Flow
	import kotlinx.coroutines.flow.callbackFlow
	import kotlinx.coroutines.flow.distinctUntilChanged

	fun <K : Any> RecyclerView.itemVisibilityFlow(
	itemKey: K,
	getItemKey: (position: Int) -> K?,

ElianFabian / ListAdapterExt.kt

Last active November 15, 2023 09:33

	import androidx.recyclerview.widget.AsyncListDiffer
	import androidx.recyclerview.widget.ListAdapter
	import kotlinx.coroutines.channels.awaitClose
	import kotlinx.coroutines.flow.Flow
	import kotlinx.coroutines.flow.callbackFlow
	import kotlinx.coroutines.flow.emptyFlow
	import kotlinx.coroutines.suspendCancellableCoroutine
	import kotlin.reflect.full.allSuperclasses

	suspend fun <T : Any> ListAdapter<T, *>.awaitCurrentListChanged(

ElianFabian / FragmentStateListAdapter.kt

Last active December 4, 2023 21:42

	import androidx.fragment.app.Fragment
	import androidx.fragment.app.FragmentActivity
	import androidx.fragment.app.FragmentManager
	import androidx.lifecycle.Lifecycle
	import androidx.recyclerview.widget.AsyncListDiffer
	import androidx.recyclerview.widget.AsyncListDiffer.ListListener
	import androidx.recyclerview.widget.DiffUtil
	import androidx.viewpager2.adapter.FragmentStateAdapter

	abstract class FragmentStateListAdapter<T>(

ElianFabian / ActivityForResultExtentions.kt

Last active May 12, 2025 10:55

Activity Result extension functions to directly get the result from a suspending function or a callback in the call site.

	package packagename

	import androidx.activity.ComponentActivity
	import androidx.activity.compose.rememberLauncherForActivityResult
	import androidx.activity.result.ActivityResultCallback
	import androidx.activity.result.ActivityResultLauncher
	import androidx.activity.result.contract.ActivityResultContract
	import androidx.compose.runtime.Composable
	import androidx.compose.runtime.remember
	import androidx.compose.runtime.rememberCoroutineScope

ElianFabian / ExtendedListAdapter.kt

Last active April 8, 2024 15:40

RecyclerView adapter utils

	import androidx.recyclerview.widget.AdapterListUpdateCallback
	import androidx.recyclerview.widget.AsyncDifferConfig
	import androidx.recyclerview.widget.AsyncListDiffer
	import androidx.recyclerview.widget.AsyncListDiffer.ListListener
	import androidx.recyclerview.widget.DiffUtil
	import androidx.recyclerview.widget.RecyclerView

	abstract class ExtendedListAdapter<T, VH : RecyclerView.ViewHolder> : RecyclerView.Adapter<VH> {

	val currentList: List<T> get() = _differ.currentList

ElianFabian / Example.kt

Last active December 10, 2023 22:17

A basic example of dependency injection with reflection in Kotlin.

	import kotlin.reflect.KClass

	fun main() {
	val baseDependencies = listOf(
	Gun(bullets = 50),
	Hammer(power = 100),
	)

	val dependencyClasses = listOf(
	Hero::class,

Elián Fabián ElianFabian