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Android Development 101
Steven Siahaan
@stevenjhsiahaan
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14
2.71
billion million
smartphone users in the
world today (2019).
Almost every third
person worldwide owns
a smartphone
jobs directly
related to the
mobile industry
(Source: Statista)
(Source: GSMA, The Mobile Economy 2019)
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Tools
Genymotion
(optional)
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Manifest
Android Test
Gradle
Resources
Layout
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Topics
• Activity
• Intent
• Fragment
• User Interface
• Sources
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Activity
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Activity
“An activity represents a single
screen with a user interface”
Last in, First Out (LIFO)
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Intent
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Intent
“a messaging object you can use to request an action from another app
component”
• Explicit Intents
Explicit intents explicitly define the component which should be
called by the Android system, by using the Java class as
identifier
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Intent cont’d
• Implicit Intents
Implicit intents specify the action which should be performed
and optionally data which provides content for the action.
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Intent cont’d
Send data through intent :
Receive data through intent :
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Fragment
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Fragment
“a piece of an activity which enable more modular activity design”
• A fragment must always be hosted in an activity
• A fragment has its own layout and its own behavior
• A fragment can be used in multiple activities
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User Interfaces
Layouts
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Layouts – Linear Layout
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Layouts – Relative Layout
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Layouts
List View Grid View
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ReclycerView
flexible and efficient version of ListView. It is an
container for rendering larger data set of views
that can be recycled and scrolled very efficiently.
(source : Dicoding )
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User Interfaces
Components
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User Interfaces - Component
Button
Tabs
Checkbox, Radio, Switch
Bottom Navigation
TextView & EditText
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Codelabs
https://codelabs.developers.google.com/codelabs/build-your-first-
android-app/index.html#0
Build Your First Android Application :
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Tips & Trick
• Open Source
• Repetition
• Sharing
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Sources
• https://developer.android.com/guide
• https://material.io/
• https://android.jlelse.eu/
• https://www.tutorialspoint.com/
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