Simone Mapelli nadar71

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Bergamo, Italy
http://www.indie-walkabout.eu/

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nadar71 / NumberExtensions.kt

Created October 21, 2020 09:49

Round double extensions

	fun Double.round(decimals: Int): Double {
	var multiplier = 1.0
	repeat(decimals) { multiplier *= 10 }
	return round(this * multiplier) / multiplier
	}

nadar71 / StringExtensions.kt

Created October 21, 2020 09:49

	import java.text.ParseException
	import java.text.SimpleDateFormat
	import java.util.*


	// Converting from String to Date
	fun String.getDateWithServerTimeStamp(): Date? {
	val dateFormat = SimpleDateFormat(
	"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'",
	Locale.ENGLISH)

nadar71 / ViewExtensions.kt

Created October 21, 2020 09:50

	import android.view.View
	import it.diceworld.dicehome.utility.OnSingleClickListener

	fun View.setGone(){
	this.visibility = View.GONE
	}

	fun View.setVisible(){
	this.visibility = View.VISIBLE
	}

nadar71 / Util.kt

Last active October 25, 2020 15:04

* Take the Long milliseconds returned by the system and stored in Room, * and convert it to a nicely formatted string for display. * * EEEE - Display the long letter version of the weekday * MMM - Display the letter abbreviation of the nmotny * dd-yyyy - day in month and full year numerically * HH:mm - Hours and minutes in 24hr format

	/**
	* Take the Long milliseconds returned by the system and stored in Room,
	* and convert it to a nicely formatted string for display.
	*
	* EEEE - Display the long letter version of the weekday
	* MMM - Display the letter abbreviation of the nmotny
	* dd-yyyy - day in month and full year numerically
	* HH:mm - Hours and minutes in 24hr format
	*/
	@SuppressLint("SimpleDateFormat")

nadar71 / coroutines_exception

Created November 10, 2020 15:19

coroutines exception handling

	private val exceptionHandler = CoroutineExceptionHandler { _, exception ->
	LogHelper.log(TAG, "User Observer Exception: ${exception.stackTrace}", Log.ERROR)
	}
	private suspend fun userHasClientCodes(user : FirebaseUser, request: UsersRequest, token : String): String? =
	withContext(Dispatchers.IO+ exceptionHandler) {

	val response = CustomerAreaAPI.createUser(request, "Bearer ${token}")
	if (response != null && response !is String) {
	if (AppPreferences.firstTimeNotification == 0) {
	AppPreferences.firstTimeNotification = 1

nadar71 / MainSettingsActivity.kt

Created January 16, 2021 17:07

Open current app info

	val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
	intent.setData(Uri.parse("package:" + getString(R.string.app_package)));
	startActivity(intent);

nadar71 / callback_no_params.c

Created February 15, 2022 11:11

C callback sample without parameters

	#include <stdio.h>
	#include <stdlib.h>

	/* The calling function takes a single callback as a parameter. */
	void PrintTwoNumbers(int (*numberSource)(void)) {
	int val1 = numberSource();
	int val2 = numberSource();
	printf("%d and %d\n", val1, val2);
	}

nadar71 / callback_with_params.c

Last active February 15, 2022 11:13

C callback sample with parameters

	/*
	* This is a simple C program to demonstrate the usage of callbacks
	* The callback function is in the same file as the calling code.
	* The callback function can later be put into external library like
	* e.g. a shared object to increase flexibility.
	*
	*/

	#include <stdio.h>
	#include <string.h>

nadar71 / callback_js.html

Created February 15, 2022 11:17

Javascript callback samples, with parameters

	<!DOCTYPE html>
	<html>
	<title>Web Page Design</title>
	<head>
	<script>
	function calculate(num1, num2, callbackFunction) {
	return callbackFunction(num1, num2);
	}

	function calcProduct(num1, num2) {

nadar71 / callback_with_params.py

Created February 15, 2022 11:27

Callback example in Python, with parameters

	def get_square(val):
	"""The callback."""
	return val ** 2

	def caller(func, val):
	return func(val)

	caller(get_square, 5)

	print caller(get_square, 5)

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