This document profiles Rizal Hilman, an Android developer and trainer. It provides information on his skills and experience in Java, Kotlin, PHP, and front-end technologies. The document also discusses Android as an operating system and why it is popular, with over a billion downloads per month on Google Play. Finally, it provides a simple "Hello World" example in XML layout and Java/Kotlin code to demonstrate how to get started with Android development.

1. Android Developer
Journey to be ..
Rizal Hilman (@rz.khilman)

2. • Trainer Android di IMA Studio
• Mobile Developer
• Web Developer
Job Skill
MAULANA RIZAL HILMAN
• Java, Kotlin, PHP, HTML, CSS,
JavaScript, MySQL, MariaDB
• Laravel, Code Igniter
• JQuery, Vue.JS
github.com/drawrs fb.me/rizal.ofdrawwww.khilman.com
Email : rizal.drawrs@gmail.com
Telp/WA/Telegram : 083824708398
Instagram : @rz.khilman

3. Android ?

4. Android is..
▪ An Operating system
▪ Open source
▪ Based on Linux kernel
▪ Android, Inc : Andy Rubin, Rich M ilner, Nick Sears and Chris
White in 2013
▪ Google buy Android in 2015

5. Android Everywhere

6. Android Version
Android Oreo 8.0

7. Why Android ?

8. Android powers hundreds of millions of mobile devices in
more than 190 countries around the world
Every day, more than 1 million new Android devices are activated worldwide.
There are more than 1.5 billion downloads/month in Google Play and growing.

9. Indonesia today.
Ranked
8 th
In the world as the country with most active internet user
100 M
Smartphone users

10. 2 Bilion

11. Big market.
Big player?

13. indonesiandroidkejar.id

15. How to Start ?

17. What we Should
have?

18. #1 Programming Language

19. ● Kotlin
● Java
● JavaScript
● C#
● C++
● Phyton
● etc that can running on JVM

20. Java vs Kotlin

22. #2 Tools

24. #3 Purposes & Solutions

25. #4 Time

26. Where we Can
learn?

28. https://www.twoh.co
http://blog.khilman.com

29. Training center
● IMA Studio
● GIT’s Indonesia
● Dicoding
● Refactory
● Rumah Coding
● Code politan

30. Hello World
Example

31. <?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="id.co.imastudio.libawaydevsummitpenjual.HelloActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="Hello world !"/>
</android.support.constraint.ConstraintLayout>
XML Syntax

32. public class HelloActivity extends
AppCompatActivity {
@Override
protected void onCreate(Bundle
savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hello);
}
}
class HelloActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState:
Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_hello)
}
}
Java Kotlin

34. Thank youRizal Hilman - @rz.khilman