pksokolowski’s gists

pksokolowski / using.kt

Created March 14, 2019 17:44

Adding a language-feature-like functionality in Kotlin and Lisp for comparison. Using a simplified "using" statement as an example.

	// some setup

	interface IDisposable {
	fun dispose()
	}

	data class Handle(val resource: String) : IDisposable {
	override fun dispose() {
	println("Disposing of $this")
	}

pksokolowski / multiple.kt

Created May 25, 2019 17:09

Kotlin events, with one and many listeners.

	private fun raiseMoveMade() = moveMade.forEach { it.invoke() }
	val moveMade = mutableListOf<() -> Unit>()

	// invoking
	raiseMoveMade()

	// assigning a listener (in the outside world)
	moveMade += { uiSounds.playMove() }

pksokolowski / UsageSampleDialogFragment.kt

Created October 29, 2019 07:02

Android: fix for DialogFragment's size issues when a recyclerView lives inside it. This extension method allows you to hardcode in the desired dimensions of the dialog fragment as percentages of the available screen real estate.

	class HelpDialogFragment : androidx.fragment.app.DialogFragment() {

	override fun onCreateView(
	inflater: LayoutInflater,
	container: ViewGroup?,
	savedInstanceState: Bundle?
	): View? {
	return inflater.inflate(R.layout.fragment_help, null)
	}

pksokolowski / RequestRunner.kt

Created November 21, 2019 02:24

A helper reducing repeated code with network calls made using coroutines. Along with a usage sample.

	import com.github.pksokolowski.posty.di.PerApp
	import kotlinx.coroutines.Dispatchers
	import kotlinx.coroutines.GlobalScope
	import kotlinx.coroutines.launch
	import kotlinx.coroutines.withContext
	import javax.inject.Inject

	@PerApp
	class RequestRunner @Inject constructor(private val ongoingTasksTracker: OngoingTasksTracker) {

pksokolowski / IconView.kt

Last active April 18, 2020 15:45

Android custom view starting point to copy-paste instead of remembering. This is a simple case of a view displaying parameters from xml and offering an onclick functionality.

	import android.content.Context
	import android.util.AttributeSet
	import android.widget.LinearLayout
	import kotlinx.android.synthetic.main.icon_view.view.*

	class IconView @JvmOverloads constructor(
	context: Context,
	attrs: AttributeSet? = null
	) : LinearLayout(context, attrs) {

pksokolowski / Voice.kt

Last active March 2, 2020 20:31

A very simple class utilizing TTS engine on an Android phone to say something out loud.

	/**
	* Utilizes TextToSpeech engine on the device to speak out loud what you want it to say.
	*/
	@PerApp
	class Voice @Inject constructor(
	private val context: Application
	) {
	private var isTtsReady = false
	private var tts: TextToSpeech? = null
	private var postponedTextToSay: String? = null

pksokolowski / PermissionsShop.kt

Created May 17, 2020 17:47

A quick attempt at automatization and encapsulation of permissions handling on Android.

	import android.app.Activity
	import android.content.pm.PackageManager
	import androidx.core.app.ActivityCompat
	import androidx.core.content.ContextCompat
	import com.github.pksokolowski.trainingplanner.di.PerApp
	import javax.inject.Inject

	/**
	* A universal permissions helper. It should be injected both where you need to ask for a
	* given permission and in the underlying activity. Within the activity, in

pksokolowski / PrintRGB.kt

Created December 26, 2021 10:57

Colorful print and println for Kotlin for terminals with TrueColor support.

	private const val reset = "\u001b[0m"

	fun printc(content: String, r: Int, g: Int, b: Int) = print("\u001b[38;2;$r;$g;${b}m" + content + reset)
	fun printlnc(content: String, r: Int, g: Int, b: Int) = println("\u001b[38;2;$r;$g;${b}m" + content + reset)

pksokolowski / Spinner.kt

Last active March 13, 2022 20:09

A simplistic, generic spinner view for Jetpack Compose

	import androidx.compose.foundation.clickable
	import androidx.compose.foundation.layout.Arrangement
	import androidx.compose.foundation.layout.Box
	import androidx.compose.foundation.layout.Row
	import androidx.compose.foundation.layout.padding
	import androidx.compose.material.DropdownMenu
	import androidx.compose.material.DropdownMenuItem
	import androidx.compose.material.Icon
	import androidx.compose.material.icons.Icons
	import androidx.compose.material.icons.filled.ArrowDropDown