Platform Independent Architecture V2

Version 2 of a platform independent architecture talk I gave. The ending now has videos.

Transcript

1. Mobile Platform Independent Architecture Daniel J Leonardis
4. Goal • It all starts with Business Requirements • Let’s get clean with ‘Clean Code’ • MVP / VIPER Base Patterns • NHL Example
5. WHAT AM I BUILDING….?
6. Requirements & Engineering • Business Requirements are Use Cases • Use Cases are Business Logic • An app’s business logic should be well defined and testable.
7. Ready, Set, Code?
8. Let’s Architect!
9. MVC
10. Test?
11. Clean Code
13. MVP Android
14. VIPER iOS
16. Same Thing! =
18. MVP Detailed
19. Viper Details
20. Example
22. Ready, Set, Code?
23. Let’s Think
24. State Pattern
25. Document Software Requirements
26. State Diagram
29. Testing State Machine
30. State Pattern
31. public class NHLSetupContext { private User user; private NHLSetupState nhlSetupState; private Set<SetupContextCallback> callbacks... public NHLSetupContext(User user) { this.user = user; setState(new NHLSetupStateSplash()); } void setState(final NHLSetupState state) { this.nhlSetupState = state; /*Callbacks Handled here...*/ } public void processMessage(final NHLSetupMessage message{ nhlSetupState.processMessage(this, message); } /*Additional Code...*/ }
32. /* Base class for the setup state pattern*/ public abstract class NHLSetupState { public abstract void processMessage( final NHLSetupContext nhlSetupContext, final NHLSetupMessage nhlSetupMessage); } /* Represents the Splash screen state.*/ public class NHLSetupStateSplash extends NHLSetupState { @Override public void processMessage(NHLSetupContext nhlSetupContext, NHLSetupMessage nhlSetupMessage) { /* Do work… Determine Next State*/ /* Set Next State*/ nhlSetupContext.setState(new NHLSetupStateABC()); } }
33. public class NHLSetupStateControllerSplashTest implements SetupContextCallback { private SetupState currentState; @Before public void setUp() throws Exception { /*Register Callback for State Machine*/ } @Test public void testSplashToABC() { //Setup State To Test .. //Perform Test nhlSetupContext.processMessage(/*Some Value*/); assertEquals(SetupState.ABC, currentState); } @Override public void transitionToState(SetupState setupState) { currentState = setupState; }
34. @protocol NHLSetupContextDelegate <NSObject> - (void)willTransitionFromState:(NHLSetupState *)fromState toState:(NHLSetupState *)toState; @implementation NHLSetupContext - (void)setCurrentState:(NHLSetupState *)currentState { _currentState = currentState; /*Callbacks Handled Here*/ } /*Additional Code...*/ @end
35. /* Base class for the setup state pattern*/ @implementation NHLSetupState // Stubs - (void)process {} /* Represents the Splash screen state.*/ @interface NHLSetupStateSplash : NHLSetupState @implementation NHLSetupStateSplash - (void)process { /* Do work… Determine Next State*/ /* Set Next State*/ self.context.currentState = [[NHLSetupStateABC alloc] initWithContext:self.context]; }
36. NHL
37. Arena
38. Wrap Up • It all starts with Business Requirements • Let’s get clean with ‘Clean Code’ • MVP / Viper Base Patterns • NHL & Arena Examples
39. Polar Thinking
40. Questions