alexfu

public class FragmentObserver extends Observable {
    @Override
    public void notifyObservers() {
        setChanged(); // Set the changed flag to true, otherwise observers won't be notified.
        super.notifyObservers();
    }
}

alexfu

/**
 * Transforms an observable to run on a new thread
 * and to be observed on Androids main thread.
 */
public static <T> Observable.Transformer<T, T> androidAsync() {
 return new Observable.Transformer<T, T>() {
   @Override
   public Observable<T> call(Observable<T> observable) {
     return observable
       .subscribeOn(Schedulers.newThread())

alexfu

#!/usr/bin/env bash

emulator=$ANDROID_HOME/tools/emulator
adb=$ANDROID_HOME/platform-tools/adb

EMULATOR_COUNT=$($emulator -list-avds | wc -l | cut -c 8)
RANDOM_INDEX=$(shuf -i 1-$EMULATOR_COUNT -n 1)
EMULATOR_NAME=$($emulator -list-avds | head -n $RANDOM_INDEX | tail -n 1)

printf "Starting $EMULATOR_NAME..."

alexfu

#!/bin/bash

# Creates a new named bugfix branch in the following format: bugfix/xyz
# $1 - Name of the branch
# $2 - Base branch

BRANCH_NAME=bugfix/$1
START_POINT=$2

git checkout -b $BRANCH_NAME $START_POINT

alexfu

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Alex Fu
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is

alexfu

val units = listOf(
    ChronoUnit.MILLENNIA,
    ChronoUnit.CENTURIES,
    ChronoUnit.DECADES,
    ChronoUnit.YEARS,
    ChronoUnit.MONTHS,
    ChronoUnit.WEEKS,
    ChronoUnit.DAYS,
    ChronoUnit.HOURS,
    ChronoUnit.MINUTES,

alexfu

val world = "World"
val mySpannedText = SpannableString("Hello ${world}!")
mySpannedText.spanWith(world) {
  what = BackgroundColorSpan(Color.RED)
  flags = Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
}

alexfu

#!/usr/bin/env python

import sys
import subprocess

def get_devices():
    pipe = subprocess.PIPE
    process = subprocess.Popen(["adb", "devices"], stdin=pipe, stdout=pipe, stderr=pipe)
    output, error = process.communicate()
    output_lines = output.strip().split("\n")

alexfu

Creating GitHub PRs directly from JIRA tickets

With a single command, you will be able to create a GitHub pull request from a JIRA ticket.

git jira-pr -t BUY-123 -b development

The above command will fetch the JIRA ticket and create a pull request using the JIRA ticket ID and summary as the pull request title.

alexfu

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ImageView
        android:layout_width="200dp"
        android:layout_height="100dp"