rishabhkohli

import androidx.fragment.app.Fragment
import androidx.lifecycle.DefaultLifecycleObserver
import androidx.lifecycle.LifecycleOwner
import kotlin.properties.ReadOnlyProperty
import kotlin.reflect.KProperty

fun <T> Fragment.viewLifecycleAware(initialise: () -> T): ReadOnlyProperty<Fragment, T> =
	object : ReadOnlyProperty<Fragment, T>, DefaultLifecycleObserver {

		private var value: T? = null

andy-thomason

Genomics - A programmer's guide.

Andy Thomason is a Senior Programmer at Genomics PLC. He has been witing graphics systems, games and compilers since the '70s and specialises in code performance.

https://www.genomicsplc.com

paolop

import android.util.Log
import com.paolo
import kotlin.reflect.KClass

/* Convenient wrappers over Android Log.* static methods */

/** Wrapper over [Log.i] */
inline fun <reified T> T.logi(message: String, onlyInDebugMode: Boolean = true, enclosingClass: KClass<*>? = null) =

bastman

fun loadResource(resource: String): String =
        try {
            object {}.javaClass.getResource(resource)
                    .readText(Charsets.UTF_8)
        } catch (all: Exception) {
            throw RuntimeException("Failed to load resource=$resource!", all)
        }

hector6872

fun String.encodeBase64ToString(): String = String(this.toByteArray().encodeBase64())
fun String.encodeBase64ToByteArray(): ByteArray = this.toByteArray().encodeBase64()
fun ByteArray.encodeBase64ToString(): String = String(this.encodeBase64())

fun String.decodeBase64(): String = String(this.toByteArray().decodeBase64())
fun String.decodeBase64ToByteArray(): ByteArray = this.toByteArray().decodeBase64()
fun ByteArray.decodeBase64ToString(): String = String(this.decodeBase64())

fun ByteArray.encodeBase64(): ByteArray {
  val table = (CharRange('A', 'Z') + CharRange('a', 'z') + CharRange('0', '9') + '+' + '/').toCharArray()

Audhil

//  XML generation by code
//  based on https://www.schibsted.pl/blog/back-end/readable-xml-kotlin-extensions/
fun XmlSerializer.document(docName: String = "UTF-8",
                           xmlStringWriter: StringWriter = StringWriter(),
                           init: XmlSerializer.() -> Unit): String {
    startDocument(docName, true)
    xmlStringWriter.buffer.setLength(0) //  refreshing string writer due to reuse
    setOutput(xmlStringWriter)
    init()
    endDocument()

monkut

# referecing: # https://www.digitalocean.com/community/tutorials/how-to-install-apache-kafka-on-ubuntu-14-04 # https://chongyaorobin.wordpress.com/2015/07/08/step-by-step-of-install-apache-kafka-on-ubuntu-standalone-mode/

1. Add 'kafka' user:

$ sudo useradd kafka -m

2. Install Java:

dscape

Notes on The Innovator’s Dilemma: When New Technologies Cause Great Firms to Fail

• Book by: Clayton M. Christensen, Cambridge, Massachusetts: Harvard Business School Press, 1997
• Prepared by: B.B. McBreen. See [PDF][1] (more readable but it's not plain text)

Summary

1. Market progress is separate from technology progress. Customers do not always know what they need.
2. Innovation requires resource allocation which is extraordinarily difficult for disruptive technologies.
3. Disruptive technology needs a new market. Old customers are less relevant. Disruptive technology is a marketing problem, not a technological one.