Aidanvii7

fun main() {
    FakeAppFeatures {
        if (SomeFeature.enabled) {
            println("some feature is enabled!")
        }
    }
}

sealed class Feature
object SomeFeature : Feature()

jamiesanson

fun <T> Fragment.viewLifecycle(bindUntilEvent: Lifecycle.Event = Lifecycle.Event.ON_DESTROY): ReadWriteProperty<Fragment, T> =
        object: ReadWriteProperty<Fragment, T>, LifecycleObserver {

            // A backing property to hold our value
            private var binding: T? = null

            private var viewLifecycleOwner: LifecycleOwner? = null

            init {
                // Observe the View Lifecycle of the Fragment

catvinhquang

package catvinhquang.androiddeveloper;

import android.animation.ValueAnimator;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.support.annotation.Nullable;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;

objcode

/* Copyright 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

nickbutcher

                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

JoseAlcerreca

/**
 * An [Observer] for [Event]s, simplifying the pattern of checking if the [Event]'s content has
 * already been handled.
 *
 * [onEventUnhandledContent] is *only* called if the [Event]'s contents has not been handled.
 */
class EventObserver<T>(private val onEventUnhandledContent: (T) -> Unit) : Observer<Event<T>> {
    override fun onChanged(event: Event<T>?) {
        event?.getContentIfNotHandled()?.let { value ->
            onEventUnhandledContent(value)

iammert

public class NewIntentProcessor extends AbstractProcessor {

    private static final String METHOD_PREFIX = "start";
    private static final ClassName classIntent = ClassName.get("android.content", "Intent");
    private static final ClassName classContext = ClassName.get("android.content", "Context");

    private Filer filer;
    private Messager messager;
    private Elements elements;
    private Map<String, String> activitiesWithPackage;

rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

lopspower

All Android Directory Path

1) System directories

⚠️ We can't write to these folers

Method	Result

rxaviers

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