2. Course Curriculum
Module 1
» Basics of Android
Module 2
» Android Layouts and Widgets
Module 3
» Communication and Media
Module 4
» Storage Techniques and Animation in Android
Module 5
» Web Services and Customizations of Widgets
Module 6
» Advanced Android Concepts
3. Eclipse
• Eclipse is a multi-language software development
environment comprising an integrated development
environment (IDE)
• Users can extend its abilities by installing plug-ins written for
the Eclipse Platform
• It is written mostly in Java
6. DDMS
• Android ships with a debugging tool called the Dalvik Debug
Monitor Server (DDMS)
• which provides:
– port-forwarding services
– screen capture on the device
– thread and heap information on the device
– LogCat process
15. Manifest File
• Manifest presents essential information about the application to the
Android system, information the system must have before it can run any of
the application's code.
• Elements
• Attributes
• Class names
• Multiple values
• Resource values
• String values
16. App's Launcher Activity
• The main activity for your app must be declared in the manifest with
these parameters.
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
17. Questions You need to Ask
• What is AndroidManifest.xml ?
• Why there is a .java file in src/ directory ?
• What do we put in res/ directory ?
• Inside res/ what are these ?
– drawable-hdpi/
– layout/
– values/
19. Values
• Android will run on many devices in many regions
• Whenever the application runs in a locale for which you have
not provided locale-specific text, Android will load the default
strings from res/values/strings.xml
• Different qualifiers can be used for different locales like
res/values-fr
22. Drawable – What are they?
• A Drawable is a general abstraction for "something that can
be drawn."
• Unlike a View, a Drawable does not have any facility to
receive events or otherwise interact with the user.
24. Types of Event Listeners
• onClick() From View.OnClickListener
• onLongClick From View.OnLongClickListener
• onKey() From View.OnKeyListener
• onTouch() From View.OnTouchListener
26. Supporting Different Screens
• Android runs on a variety of devices that offer different
screen sizes and densities
• System provides APIs that allow you to control your
application's UI for specific screen sizes and densities
• res/layout/my_layout.xml
• res/layout-small/my_layout.xml
• res/layout-large/my_layout.xml
• res/layout-xlarge/my_layout.xml
// layout for normal screen size ("default")
// layout for small screen size
// layout for large screen size
// layout for extra large screen size
27. Supporting Different Screens
• xlarge screens are at least 960dp x 720dp
• large screens are at least 640dp x 480dp
• normal screens are at least 470dp x 320dp
• small screens are at least 426dp x 320dp
