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 Screen Alberto Fonseca Founder -

2. Agenda What is GOTO? Feature Overview Demo Lessons Learned Q&A Copyright © 2010 InnoWeb Tech, LLC

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

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

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

6. Features Notification Previews App shortcuts Weather Copyright © 2010 InnoWeb Tech, LLC

7. Features Notification Previews Copyright © 2010 InnoWeb Tech, LLC

8. Features Notification Previews App shortcuts Copyright © 2010 InnoWeb Tech, LLC

9. Features Notification Previews App shortcuts Weather Copyright © 2010 InnoWeb Tech, LLC

10. DEMO Copyright © 2010 InnoWeb Tech, LLC

11. Lessons Learned Unsupported API’s – Don’t try this at home Supporting Android 1.5 – 2.2 Testing on real hardware Copyright © 2010 InnoWeb Tech, LLC

12. Lessons Learned Unsupported API’s – Don’t try this at home Maintenance and internal API changes Device implementations not consistent Very time consuming Copyright © 2010 InnoWeb Tech, LLC

13. Lessons Learned Unsupported API’s – Don’t try this at home Supporting Android 1.5 – 2.2 Copyright © 2010 InnoWeb Tech, LLC http://developer.android.com/resources/dashboard/platform-versions.html Data collected during two weeks ending on August 2, 2010

14. Lessons Learned Unsupported API’s – Don’t try this at home Supporting Android 1.5 – 2.2 Android Manifest MinSDK version 3 TargetSDK version 8 Reflection Initialization on demand holder pattern Copyright © 2010 InnoWeb Tech, LLC

15. GoogleAccountsWrapper public 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. */ @Override public 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(); } @Override public 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 info GoogleAccountsWrappergoogleAccounts = GoogleAccountsWrapper.getInstance(); googleAccounts.initGMailAccount(this); Copyright © 2010 InnoWeb Tech, LLC

19. Lessons Learned Unsupported API’s – Don’t try this at home Supporting Android 1.5 – 2.2 Testing on real hardware Networking with other Android users/devs DeviceAnywhereservice http://www.deviceanywhere.com Copyright © 2010 InnoWeb Tech, LLC

20. Questions? Copyright © 2010 InnoWeb Tech, LLC

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