dodyg

#Intro

Kotlin is a new programming language for the JVM. It produces Java bytecode, supports Android and generates JavaScript. The latest version of the language is Kotlin M5.3

Kotlin project website is at kotlin.jetbrains.org.

All the codes here can be copied and run on Kotlin online editor.

Let's get started.

blackcj

Step 1: Add any functions you want to call into the interface (EventListener).

Step 2: Implement those functions in your MainActivity.

Step 3: Create the listener in your Fragment and attach it to the Activity.

Step 4: Call any functions on the listener.

lolzballs

import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;

public class HelloWorld{
	private static HelloWorld instance;
    public static void main(String[] args){
        instantiateHelloWorldMainClassAndRun();

lawloretienne

public class RxImageView extends ImageView {

    // region Member Variables
    private PublishSubject<Boolean> publishSubject = PublishSubject.create();
    // endregion

    // region Constructors
    public RxImageView(Context context) {
        super(context);
    }

moyheen

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.design.widget.TextInputLayout
        android:layout_width="match_parent"

Arinerron

android.permission.ACCESS_ALL_DOWNLOADS
android.permission.ACCESS_BLUETOOTH_SHARE
android.permission.ACCESS_CACHE_FILESYSTEM
android.permission.ACCESS_CHECKIN_PROPERTIES
android.permission.ACCESS_CONTENT_PROVIDERS_EXTERNALLY
android.permission.ACCESS_DOWNLOAD_MANAGER
android.permission.ACCESS_DOWNLOAD_MANAGER_ADVANCED
android.permission.ACCESS_DRM_CERTIFICATES
android.permission.ACCESS_EPHEMERAL_APPS
android.permission.ACCESS_FM_RADIO

DavidWells

Aligning images

This is a guide for aligning images.

See the full Advanced Markdown doc for more tips and tricks

left alignment

nickbutcher

/*
 * Copyright 2016 Google Inc.
 *
 * 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
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

Ramasubramanian

/**
 * Java code from https://gist.github.com/patloew/bc32a2a1a3c0097e9c7020192fb2c78f
 * used and converted to Kotlin with some modifications
 */
open class RealmListParcelConverter<T> : TypeRangeParcelConverter<RealmList<T>, RealmList<T>> where T : io.realm.RealmObject{

    override fun toParcel(input: RealmList<T>?, parcel: Parcel) {
        if (input == null) {
            parcel.writeInt(NULL)

adavis

fun View.visible() {
    visibility = View.VISIBLE
}

fun View.invisible() {
    visibility = View.INVISIBLE
}

fun View.gone() {
    visibility = View.GONE