This document discusses the GOTO Android lock screen app. It provides an overview of the app's features like notification previews and app shortcuts. It then demonstrates the app and discusses lessons learned in developing it, such as supporting older Android versions back to 1.5 and dealing with inconsistent device implementations. The document concludes with contact information for the app's developer.

1. The Ultimate Android Lock ScreenAlberto FonsecaFounder -

2. AgendaWhat is GOTO?Feature OverviewDemoLessons LearnedQ&ACopyright © 2010 InnoWeb Tech, LLC

3. What is GOTO?Copyright © 2010 InnoWeb Tech, LLCAndroid 1.5

4. What is GOTO?Copyright © 2010 InnoWeb Tech, LLCAndroid 2.0

5. What is GOTO?Copyright © 2010 InnoWeb Tech, LLCGOTO UI

6. FeaturesNotification PreviewsApp shortcutsWeatherCopyright © 2010 InnoWeb Tech, LLC

7. FeaturesNotification PreviewsCopyright © 2010 InnoWeb Tech, LLC

8. FeaturesNotification PreviewsApp shortcutsCopyright © 2010 InnoWeb Tech, LLC

9. FeaturesNotification PreviewsApp shortcutsWeatherCopyright © 2010 InnoWeb Tech, LLC

10. DEMOCopyright © 2010 InnoWeb Tech, LLC

11. Lessons LearnedUnsupported API’s – Don’t try this at homeSupporting Android 1.5 – 2.2Testing on real hardwareCopyright © 2010 InnoWeb Tech, LLC

12. Lessons LearnedUnsupported API’s – Don’t try this at homeMaintenance and internal API changesDevice implementations not consistentVery time consumingCopyright © 2010 InnoWeb Tech, LLC

13. Lessons LearnedUnsupported API’s – Don’t try this at homeSupporting Android 1.5 – 2.2Copyright © 2010 InnoWeb Tech, LLChttp://developer.android.com/resources/dashboard/platform-versions.htmlData collected during two weeks ending on August 2, 2010

14. Lessons LearnedUnsupported API’s – Don’t try this at homeSupporting Android 1.5 – 2.2Android ManifestMinSDK version 3TargetSDK version 8ReflectionInitialization on demand holder patternCopyright © 2010 InnoWeb Tech, LLC

15. GoogleAccountsWrapperpublic abstract classGoogleAccountsWrapper{public staticGoogleAccountsWrappergetInstance(){if (Integer.parseInt(Build.VERSION.SDK) < 5){returnPreEclair.Holder.instance;}else{returnEclairPlus.Holder.instance;}}public abstract voidinitGMailAccount(Activity activity);//…Copyright © 2010 InnoWeb Tech, LLC

16. private static class PreEclair extends GoogleAccountsWrapper{private static class Holder{ private static finalPreEclair instance = new PreEclair();}/*** Retrieve GMail account info and save it in NotificationInfo* Note: We are relying on an older version of* GoogleLoginServiceHelper linked here via the framework.jar * library and calling it's getAccount() method.*/@Overridepublic voidinitGMailAccount(Activity activity) {com.google.android.googlelogin.GoogleLoginServiceHelper.getAccount(activity, Goto.REQUEST_GET_ACCOUNT, true);}}Copyright © 2010 InnoWeb Tech, LLC

17. private static classEclairPlus extends GoogleAccountsWrapper{private static class Holder{ private static finalEclairPlusinstance = newEclairPlus();}@Overridepublic voidinitGMailAccount(Activity context) {AccountManageraccountManager = AccountManager.get(context);Account[] accounts = accountManager.getAccountsByType("com.google");if (accounts.length > 0){NotificationInfo.googleAccount= accounts[0].name;}}}}Copyright © 2010 InnoWeb Tech, LLC

18. // Initialize GMail account infoGoogleAccountsWrappergoogleAccounts = GoogleAccountsWrapper.getInstance();googleAccounts.initGMailAccount(this);Copyright © 2010 InnoWeb Tech, LLC

19. Lessons LearnedUnsupported API’s – Don’t try this at homeSupporting Android 1.5 – 2.2Testing on real hardwareNetworking with other Android users/devsDeviceAnywhereservicehttp://www.deviceanywhere.comCopyright © 2010 InnoWeb Tech, LLC

20. Questions?Copyright © 2010 InnoWeb Tech, LLC

21. ContactAlberto FonsecaAvailable for consulting/project managementE-mail: afonseca@innowebtech.comBlog: www.innowebtech.com/blogTwitter: @innowebtechGOTOAvailable in the Android MarketplaceWeb: www.gotoandroidapp.comCopyright © 2010 InnoWeb Tech, LLC