A Noob’S Guide To Android Application Development

A Noob’s Guide to Android Application Development By: Chua Zi Yong Singapore Android User Group www.codeandroid.org BarCamp Singapore 3 28/2/2009

Who am I? ,[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

What is in this presentation? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Why Android? I am cool! By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

Why Android? ,[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

Why Android? ,[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

Why Android? ,[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

How to get started? Fix me! By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

How to get started? ,[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

“ Deep” Dive By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

“ Deep” Dive ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org “ Deep” Dive

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org “ Deep” Dive

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org “ Deep” Dive

[object Object],Package: com.pathfinder.sg CategoriesListActivity.java PlacesListActivity.java Services: MyPositionService .java (to obtain location from GPS, cell tower) Content Provider: xml file in /res/raw containing location data By: Chua Zi Yong Singapore Android User Group www.codeandroid.org “ Deep” Dive

Set view using ListAdapter (since this is ListActivity) Starting GPS/ntw service Staring the Application: OnCreate Android logging class for logcat on DDMS (debugging) By: Chua Zi Yong Singapore Android User Group www.codeandroid.org “ Deep” Dive

Moving to Another Activity Using Intent By: Chua Zi Yong Singapore Android User Group www.codeandroid.org Initialize intent variable: Intent(packageContext, Class) Start activity Add extended content to be passed through intent: putExtra(String name, value) Bonus point: If you intend to end current activity and back to previous, use finish() instead “ Deep” Dive

Make sure you stop services that is not needed upon exit! i.e. GPS service will otherwise continue to run in background By: Chua Zi Yong Singapore Android User Group www.codeandroid.org Remember to consider other parts of the lifecycle “ Deep” Dive

By: Chua Zi Yong Singapore Android User Group www.codeandroid.org Android Manifest User permission needed Declare activities within the application “ Deep” Dive

[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org “ Deep” Dive

How to Publish? By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

How to Publish? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org Suggested commands $ keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -validity 10000 $ jarsigner -verbose -keystore my-release-key.keystore my_application.apk alias_name

How to Publish? ,[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

How to Publish? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

Resources By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],By: Chua Zi Yong Singapore Android User Group www.codeandroid.org

Q&A By: Chua Zi Yong Singapore Android User Group www.codeandroid.org ??

A Noob’S Guide To Android Application Development

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A Noob’S Guide To Android Application Development