This document provides an overview of Android Studio and instructions for creating a basic Android app. It discusses setting up the development environment, the key components of Android Studio like the interface, build variants and layout previewer. It also explains the project structure for an Android app and how to define resources like colors, dimensions and strings. The document concludes with steps to build a simple app with a linear layout and instructions to launch it on a device.

1. 行動APP開發管理實務
Android Studio Overview and Practice
尹君耀 Xavier Yin

2. Outline
 Environment
 Android Studio Overview
 Project Structure
 The First Android App

3. Environment
 JDK
– Download JDK (or from Oracle)
– Installation and Environment Variable Settings
 JAVA_HOME
 PATH
 Installation result on cmd
 Android SDK and Studio
– Download Android SDK and Studio (or from Android Developer)
– Installation
 Launch the .exe file you just downloaded
 Follow the setup wizard

4. Android SDK
 Platform-tools folder
– Adb(Android Debug Bridge) instructions
 devices: Prints a list of all attached emulator/device instances.
 logcat: Prints log data to the screen.
 push: Copies a specified file from an emulator/device instance to your
development computer
 pull: Copies a specified file from your development computer to an
emulator/device instance.
 Tools folder
 Android
– avd: Launch the AVD Manager
– sdk: Launch the Android SDK Manager

5. Devices
 Real Devices
– With USB
 Android Emulator
– android avd
 Genymotion
– Plugin

6. Android Studio Overview
 Interface

7. Android Studio Overview
 Interface
– Tool bar

8. Android Studio Overview
 Interface
– Tool bar
– Navigation bar

9. Android Studio Overview
 Interface
– Tool bar
– Navigation bar
– Project structure

10. Android Studio Overview
 Interface
– Tool bar
– Navigation bar
– Project structure
– Code editor

11. Android Studio Overview
 Features
– Flexible Gradle-based build system
– Build variants and multiple apk file generation
– Code templates to help you build common app features
– Rich layout editor with support for drag and drop theme editing
– lint tools to catch performance, usability, version compatibility, and
other problems
– And much more

12. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

13. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

14. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

15. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

16. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

17. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

18. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

19. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

20. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

21. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

22. Android Studio Overview
 Details
– Auto Complete
– Build Variants
– Productivity Guild
– Multi Devices Debug
– Layout Preview for Multi Devices
– Plugins
– Code Template
– Layout Tools Attributes
– Resource Preview
– And much more

23. Project Structure
 /app
– /src
 /main/java
– /your_package_name (ex: /com/tku/android -> com.tku.android)
 Java files
– AndroidManifest.xml
 /androidTest(For Android Test)
– /java/your_package_name
 Test cases
 /res
– /drawable
– /layout
– /values
 colors.xml, dimens.xml, strings.xml, styles.xml…etc.
 build.gradle

24. Resources
 Drawable
– A drawable resource is a general concept for a graphic that can be
drawn to the scree.
 values
– strings: A string resource provides text strings for your application with
optional text styling and formatting.
– colors: A ColorStateList is an object you can define in XML that you can
apply as a color, but will actually change colors, depending on the state of
the View object to which it is applied.
– styles: A style resource defines the format and look for a UI.
– dimens: A dimension is specified with a number followed by a unit of
measure.

25. App Manifest
 Manifest file
– The manifest file presents essential information about your app to the
Android system, information the system must have before it can run
any of the app's code.
 Permission
– A basic Android application has no permissions associated with it by
default, meaning it cannot do anything that would adversely impact
the user experience or any data on the device.
– To make use of protected features of the device, you must include in
your AndroidManifest.xml one or more <uses-permission> tags
declaring the permissions that your application needs.

26. App Manifest

27. App Manifest

28. App Manifest

29. Dimens
 DPI (Dots Per Inch)
– The quantity of pixels within a physical area of the screen; usually
referred to as dpi (dots per inch).

30. Dimens
 PX, DPI and DP(DIP)
– Icon size = 160px
 MDPI -> 160px/160dpi = 1 inch
 XHDPI -> 160px/320dpi = 0.5 inch
– Icon size = 160dp -> px = dp * (dpi / 160 )
 MDPI -> px = 160 * ( 160dpi / 160dpi ) , px = 160
 XHDPI -> px = 160 * ( 320dpi / 160dpi) , px = 320

31. Dimens
 Suggestions
– Because it's important that you design and implement your layouts for
multiple densities, the guidelines below and throught the
documentation refer to layout dimensions with dp measurements
instead of pixels.
– Similarly, you should prefer the sp (scale-independent pixel) to define
text sizes. The sp scale factor depends on a user setting and the system
scales the size the same as it does for dp.

32. The First Android App
 Requirements

33. The First Android App
 Requirements 10dp
10dp
#FFEFAAE5

34. The First Android App
 Create a new project
– Empty project
 Define resources that you need
– Colors.xml, dimens.xml, strings.xml, styles.xml, drawable
 Prepare Layout files
– Add Android Resource Directory named layout within res folder
– Add a layout.xml
 LinearLayout

35. The First Android App
 Bind the above files with your java files
– Activity
 SetContentView()
 FindViewById()
 Define App Manifest file
– Intent
– Intent-filter
 Launch your App in a device

36. Sample Code and Slides
 Slides
– Slideshare
 Sample Code
– https://github.com/xavier0507/TKUSampleCode.git