Android presentation
2 likes1,726 views
The document provides an overview of Android application development and the main building blocks of Android apps. It discusses the Android stack including the Linux kernel, native libraries, Dalvik VM, and application framework. It also summarizes the anatomy of a basic "Hello World" Android app including code, resources, and manifest file. The main building blocks of Android apps are described as activities, intents, services, content providers, and broadcast receivers.
![What’s new in aNdroid [Google I/O Extended Bangkok 2016]](https://cdn.slidesharecdn.com/ss_thumbnails/whatsnewinandroid-160626055038-thumbnail.jpg?width=560&fit=bounds)
Ad
More Related Content
What's hot (19)
Viewers also liked (8)
Ad
Similar to Android presentation (20)
![OS in mobile devices [Android]](https://cdn.slidesharecdn.com/ss_thumbnails/osinmobiledevices11-141129052006-conversion-gate02-thumbnail.jpg?width=560&fit=bounds)
Ad
Recently uploaded (20)
Android presentation
- 1. Android Application Development GTUG Folio3 join event @PAF-KIET Presenter: Imam Raza
- 2. Agenda Folio3 Android products The Android Stack Hello World! Main Building Blocks
- 4. Folio3 Android Apps Myomo MyProgress Sony Socom Android App Bitzer NSDroid Citypedia
- 5. Myomo (company intro) Myomo® is a new generation medical device company that has combined innovative robotics technology with leading rehabilitation expertise to revolutionize stroke therapy. Myomo's neuro-robotic platform technology is the foundation for development of new Myomo products and expanded indications.
- 6. Myomo MyProgress App MyProgress App is the next generation software for controlling and configuring the Myomo’s neuro-robotic hardware via bluetooth. It communicates with neuro-robotic hardware via bluetooth. Perform live monitoring for data generated by hardware. Pull out different kinds of performance reports
- 12. Sony Socom App
- 13. Android Stack
- 14. The Stack
- 15. Linux Kernel Android runs on Linux. Linux provides: Hardware abstraction layer Memory management Process management Networking Users never see Linux sub system The adb shell command opens Linux shell
- 16. Native Libraries Pieces borrowed from other open source projects: Bionic, a super fast and small license-friendly libc library optimized for Android WebKit library for fast HTML rendering OpenGL for graphics Media codecs offer support for major audio/video codecs SQLite database Much more…
- 17. Dalvik VM Dalvik VM is Android implementation of Java VM Dalvik is optimized for mobile devices: Battery consumption CPU capabilities Key Dalvik differences: Register-based versus stack-based VM Dalvik runs .dex files More efficient and compact implementation Different set of Java libraries than JDK
- 18. Application Framework The rich set of system services wrapped in an intuitive Java API. This ecosystem that developers can easily tap into is what makes writing apps for Android easy. Location, web, telephony, WiFi, Bluetooth, notifications, media, camera, just to name a few.
- 19. Applications
- 20. Applications Dalvik Executable + Resources = APK Must be signed (but debug key is okay for development) Many markets with different policies
- 21. Android and Java Android Java = Java SE – AWT/Swing + Android API
- 22. Android SDK- what is in box? SDK Tools Docs Platforms Data Skins Images Samples Add-ons Google
- 23. HelloWorld!
- 24. Hello World-Create New Project Use the Eclipse tool to create a new Android project. Here are some key constructs:
- 25. Hello World- Create New Project
- 26. Hello World-Anatomy of App Java Code + XML / Other Resources + Manifest File = Android App
- 27. HelloWorld-Manifest File <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.folio3" android:versionCode="1" android:versionName="1.0"> <uses-sdk android:minSdkVersion="10" /> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".HelloworldActivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
- 28. HelloWorld- Layout Resource File <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> </LinearLayout>
- 29. HelloWorld-JAVA File package com.folio3; import android.app.Activity; import android.os.Bundle; public class HelloAndroid extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } }
- 31. Main Building Blocks Activities Intents Services Content Providers Broadcast Receivers
- 32. Activities An Activity represents a screen or a window. Sort of.
- 33. Activity LifeCycle Activities have a well-defined lifecycle. The Android OS manages your activity by changing its state. You fill in the blanks.
- 34. Intents Intents represent events or actions. They are to Android apps what hyperlinks are to websites. Sort of. Intents can be implicit or explicit.
- 35. Services Services are code that runs in the background. They can be started and stopped. Services doesn’t have UI.
- 36. Service LifeCycle Service also has a lifecycle, but it’s much simpler than activity’s. An activity typically starts and stops a service to do some work for it in the background, such as play music, check for new tweets, etc. Services can be bound or unbound.
- 37. Content Provider Content Providers share content with applications across application boundaries. Examples of built-in Content Providers are: Contacts, MediaStore, Settings and more.
- 38. Broadcast Receivers An Intent-based publish-subscribe mechanism. Great for listening system events such as SMS messages.
- 39. THANK YOU! Q/A