My slides from IT Brunch about mobile software development

1. Mobile developer is
Software developer

2. eBuddy
• 2003, Chat and XMS
• AIM, Facebook, GTalk, ICQ, MSN and
Yahoo
• iOS, Android, BB, Symbian, J2ME, WP,
Web
• 30 million monthly unique users
• 26 different nationalities
• We are hiring
Company

3. Projects Setup
• Maven or Eclipse
• Checkout
• Import
• (Easy tune)
• Profit!
Import

4. Build Automation
• Ant, antenna, bb-ant-tools
• Maven
• Proguard
• Release auto checks

5. Build Automation Concepts
• Checkout
• Run
• Profit

6. Ant Hints
Don’t change script behavior based on property value:
<if>
<equals arg1="${is-building-nna}" arg2="true"/>
<then>
<unjar src="${napi.lib}" dest="tmp/classes"/>
</then>
</if>
Much better:
<target name="normal build" />
<target name="nna build" />

7. Maven Hints

8. Dependencies
• Artifactory, Ivy
• SDKs

9. Open Source
• Fork
• Fix
• Pull request

10. Source Control Hints
• Trunk, release and spike
branches
• Commit frequently, commit
smart
• Behavior commit comments

11. Continuous Integration
• TeamCity
• 9 agents – Linux, Windows,
Mac
• Trunk, Beta and Release
• Pin to deploy in TC

12. One of the Best Mobile Team Member
• BE developer is part of mobile team
+ High quality standrards
+ Another process vision
+ Person, who can handle BE questions,
changes
- He will get bored soon

13. Code
• Clean, Testable code
• Sonar for project health
• No preprocessor
• No pre-optimization
• Activities are only windows
from your app for user
interaction

14. Code Review and Pair Programming
• Pair programming
• Code review
• Design sessions

15. Unit Tests

16. @Test
public void showWelcomeMessageWhenReceivedPushDestination() {
chatPushControl.registrationSuccess("id");
verify(control).showWelcomeMessageIfNecessary();
}
@Test
public void sendDestinationAndUpdateAccountWhenGetPushRegistration() {
final String id = "id";
chatPushControl.registrationSuccess(id);
verifySendPushSettingsAction(id, PushTimeout.LONG.getValue());
verify(masterAccount).setPushDest(id);
}

17. @RunWith(RobolectricTestRunner.class)
public class ChatActivityTest {
@Before
public void setUp() {
activity = new ChatActivity();
activity.onCreate(null);
sendImageButton =
(ImageButton) activity.findViewById(R.id.chatinput_send_image);
}
@Test
public void removeAttachmentButtonForXMS() throws Exception {
Contact contact = new Contact(IMAccountFactory.stringToAccount(“XMS"),
"userid");
when(chatControl.getCurrentChatContact()).thenReturn(contact);
activity.onResume();
assertEquals("Send image button should be invisible",
View.GONE, sendImageButton.getVisibility());
}
}

18. Unit Tests Principes
• Quick feedback
• Robolectric,
microemulator
• Emulator/simulator
tests

19. Dependency Injection
• Separate creation and
usage
• RoboGuice, Dagger

20. RoboGuice Example
import javax.inject.Inject;
@ContentView(R.layout.startup)
public class StartupActivity extends SigninActivity implements OnClickListener {
@Inject private Control control;
@Inject private FlurryLogger flurry;
@Override protected void onStart() {
super.onStart();
flurry.onStartSession(this);
flurry.onEvent(EventType.ACT_STARTUP)
}
}

21. Acceptance Tests
• Automate regression
• Sikuli, Robotium
• Monkey runner

22. #### StartGroupConversation###
#note: contacts should be received alphabetically
def StartGroupConversation(contacts):
hitMenuItem("start_group_item.png");
for x in contacts:
scrollDown(x);
type(Key.F9);
hitMenuItem("start_group_conversation.png");
wait("group_created.png", 30);
##### enter an item in the menu (INSERT)
def hitMenuItem(image):
type(Key.INSERT);
scrollDown(image); type(Key.F9);

23. Analytics
• Flurry, Google analytics
• Bugsense
• DataWareHouse

24. Feedback
• Eat your own dog food
• UX testing
• Zendesk

25. Spikes
• Clear outcome
• Timeboxed
• Presentable

26. Personal Projects
• 2 personal projects
• One sprint duration
• Presented on company
meeting

27. Conclusion

28. Keywords
• maven, ant, gradle, bb-ant-tools, proguard, antenna
• junit, testng, fest assert, mockito, jmockit, powermock
robolectric, microemulator, robotium, j2meunit, sikuli,
monkeyrunner
• roboguice, androidannotations, dagger
microlog, jarrut, lwuit, advanced bb ui, guava,
otto, actionbarsherlock, viepageindicator, disklrucache
• jenkins, teamcity, bamboo, sonar, moose
• intellij idea, eclipse, eclipse code formatter plugin

29. Trivia
• How many nationalities are in eBuddy?
• What is the name of framework that we are using for
testing Android on desktop?
• What is the duration of typical personal project in the
company?
@jack_martynov
eugen.martynov@gmail.com