antonis’s gists

antonis / vibetrace.md

Created February 13, 2026 13:22

Tmp

antonis / ExchangeRates.kt

Created December 20, 2019 14:11

Fetches exchange rate from the European Central Bank https://exchangeratesapi.io

	import com.google.gson.Gson
	import com.google.gson.JsonObject

	enum class CurrencySymbol {
	EUR, CAD, HKD, ISK, PHP, DKK, HUF, CZK, AUD, RON, SEK,
	IDR, INR, BRL, RUB, HRK, JPY, THB, CHF, SGD, PLN, BGN,
	TRY, CNY, NOK, NZD, ZAR, USD, MXN, ILS, GBP, KRW, MYR
	}

	/**

antonis / WebViewHeight.kt

Created May 22, 2019 11:31

Various ways to get the height of a Webview on Android. Nothing really works on all cases

	import android.view.ViewTreeObserver
	import android.webkit.JavascriptInterface
	import android.webkit.WebView
	import android.webkit.WebViewClient

	// Try 1

	private fun getHeightFromDocumentBodyScrollHeight(webView: WebView, setHeight: (Int)->Unit) {
	webView.webViewClient = object : WebViewClient() {
	override fun onPageFinished(view: WebView?, url: String?) {

antonis / AndroidAppHashSignature.kt

Created April 3, 2019 14:13

Google Play services uses the hash string to determine which verification messages to send to your app. The hash string is made of your app's package name and your app's public key certificate https://developers.google.com/identity/sms-retriever/verify#computing_your_apps_hash_string

	fun getAppSignature(context: Context) = context.packageManager.getPackageInfo(context.packageName, PackageManager.GET_SIGNATURES)
	.signatures.mapNotNull { hash(context.packageName, it.toCharsString()) }.firstOrNull()

	private fun hash(packageName: String, signature: String) = try {
	val messageDigest = MessageDigest.getInstance("SHA-256")
	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
	messageDigest.update("$packageName $signature".toByteArray(StandardCharsets.UTF_8))
	}
	var hashSignature = messageDigest.digest()
	hashSignature = Arrays.copyOfRange(hashSignature, 0, 9)

antonis / WikipediaSearch.kt

Created March 21, 2019 11:23

	import com.google.gson.*

	fun wikipedia(keyword: String): String {
	val url = "https://en.wikipedia.org/w/api.php" +
	"?action=query&format=json&prop=extracts" +
	"&exsectionformat=plain&exsentences=2&explaintext=1" +
	"&titles=$keyword"
	val json = java.net.URL(url).readText()
	val jsonObject = Gson().fromJson<JsonObject>(json, JsonObject::class.java)
	val pages = jsonObject["query"].asJsonObject["pages"].asJsonObject

antonis / GoogleSearch.kt

Last active March 21, 2019 11:23

	import org.jsoup.Jsoup

	fun google(keyword: String): String {
	val doc = Jsoup.connect("https://google.com/search?q=$keyword")
	.userAgent("Mozilla/5.0").get()
	val title = doc.selectFirst("h3.r a")?.text()
	val description = doc.selectFirst("span.st")?.text()
	return "$title. $description"
	}

antonis / ParseFileSizeString.kt

Created March 21, 2019 11:19

	fun getBytesFromStringFileSize(fileSizeString: String): Long? {
	fun parseBytes(string: String, unit: String, scale: Double): Long {
	val numberString = string.toUpperCase().replace(unit, "")
	val number = numberString.toDouble()
	return (number * Math.pow(1024.0, scale)).toLong()
	}
	try {
	if (fileSizeString.endsWith("GB", ignoreCase = true)) {
	return parseBytes(fileSizeString, "GB", 3.0)
	}

antonis / GooglePlacesAutocomplete.kt

Last active March 20, 2019 12:00

Quick hack to get autocomplete suggestions from Google Places https://developers.google.com/places/web-service/autocomplete

	import com.github.kittinunf.fuel.Fuel
	import com.github.kittinunf.fuel.core.HeaderValues
	import com.github.kittinunf.fuel.core.Method
	import com.github.kittinunf.fuel.core.Parameters
	import com.github.kittinunf.fuel.core.Request
	import com.github.kittinunf.fuel.core.requests.tryCancel
	import com.github.kittinunf.fuel.json.FuelJson
	import com.github.kittinunf.fuel.json.responseJson
	import com.github.kittinunf.fuel.util.FuelRouting
	import java.util.*

antonis / blockchain.verify

Created June 10, 2016 06:35

Verifying that +antonis is my blockchain ID. https://onename.com/antonis

Antonis Lilis antonis