Android Bootstrap

Bootstrap your next Android Application with Android Bootstrap or use it as a reference to learn new technology.

Transcript

1. Android Development with android bootstrap bootstrapping
2. DONN FELKER donn@donnfelker.com @donnfelker gplus.to/donnfelker
3. Groupon MyFitnessPal GetHuman Fitness+3 Travel WODs QONQR ... and over 50 more Android apps
4. loose agenda what is android bootstrap? why was it built? lots of demos libraries & examples questions
5. What is Android Bootstrap?
6. A collection of libraries and frameworks integrated together in a easy to use application that can serve as a boilerplate or reference for existing or future Android apps.
7. http api consumption dependency injection pojos instead of raw json message bus fragments navigation drawer action bar testing responsive layout backwards compatibility boilerplate for new projects
8. Why was Android Bootstrap built?
9. new client! new project!
10. reuse old code
12. this week!
13. it worked. but it was demoralizing.
14. Boilerplate. Bootstrap. MVP. I needed to
15. Goal Build More With Less
17. Pay with Square GitHub Gaug.es
18. How do we get there?
19. tons of integration work tons of open source
20. open source used dagger app compat navigation drawer otto http-request gson view pager indicator robotium gradle fragments parse.com
21. android bootstrap demo
22. download the app from search for “android bootstrap”
23. App Architecture
24. Parse.com datastore & REST endpoint (MongoDB in the cloud) app requests data parse REST API returns JSON data
27. Views Activities Service Layer Event Bus Repository Layer POJOS JSON parse Dependency Injection API consumption through HTTP Otto Dagger & Butterknife GSON Fragments (http-request)
28. UI & UX Used in Android Bootstrap Navigation Drawer Action Bar View Page Indicator
29. Picasso ListView Images are loaded via Picasso from Gravatar square.github.io/picasso/
30. Fragments & Responsive Aware Layout Handset Tablet
31. Background Service Timer Activity is updated from background service. Timer will continue to run in background. Use notification to go back to the activity. Timer is updated and looks like its running at all times.
32. Background Service Architecture Android Activity Event Bus Background Service Android Notifications
33. ANDROID BOOTSTRAP HAS A LOT GOING ON
34. GOOD
35. Overview of Libraries
36. square.github.io/dagger/
37. ActionBar with AppCompat actionbarsherlock.com
38. Pay with Square GitHub Gaug.es
39. screenshot: actionbarsherlock.com
40. usage getSupportActionBar() MenuItemCompat supports theming must use AppCompat themes as parent
41. must extend ActionBarActivity actionbarsherlock.com gotchas No PreferenceActivity Support
42. AppCompat demo
43. Navigation Drawer
45. DrawerLayout & Fragments/Views
46. navigation drawer demo
47. Otto An enhanced Guava-based event bus with emphasis on Android support.
48. Publish an event bus.post(new AnswerAvailableEvent(42)); @Subscribe public void answerAvailable(AnswerAvailableEvent event) { // TODO: React to the event somehow! } Subscribing to the event
49. Use Cases Activity / Fragment Communication Service / Fragment / Activity Communication Basic Message Passing between objects in scope Excellent Message Bus
50. Publish an event FROM A FRAGMENT bus.post(new AnswerAvailableEvent(42)); @Subscribe public void answerAvailable(AnswerAvailableEvent event) { // TODO: React to the event somehow! } Subscribing to the event FROM A ACTIVITY
51. usage include library via libs, maven or gradle // Register in onResume() bus.register(this); // Unregister in onPause() bus.unregister(this); // in onPause @Provides bus.post(event); @Subscribe
52. Otto demo
53. square.github.io/otto/
54. http-request kevinsawicki.github.com/http-request/ A simple convenience library for using a HttpURLConnection to make requests and access the response.
55. kevinsawicki.github.com/http-request/
56. kevinsawicki.github.com/http-request/
58. kevinsawicki.github.com/http-request/
59. gson a library for working with json code.google.com/p/google-gson/
60. class  BagOfPrimitives  {    private  int  value1  =  1;    private  String  value2  =  "abc";    private  transient  int  value3  =  3;    BagOfPrimitives()  {        //  no-­‐args  constructor    } } BagOfPrimitives  obj  =  new  BagOfPrimitives(); Gson  gson  =  new  Gson(); String  json  =  gson.toJson(obj);   a pojo serialization BagOfPrimitives  obj2  =  gson.fromJson(json,  BagOfPrimitives.class); deserialization code.google.com/p/google-gson/
61. woohoo! no more manual json parsing code.google.com/p/google-gson/
62. code.google.com/p/google-gson/
65. REST API
66. api consumption demo
67. a fast dependency injector for Android and Java http://square.github.io/dagger/
68. Why is it so fast? - Compile Time Validation - Compile Time Code Generation
69. http://square.github.io/dagger/
70. User Interface Service Layer Repository Layer what if I a particular dependency down here that depends on context? service layer: goo.gl/7NQVZ repository/persistence layer: goo.gl/j5u74 http://square.github.io/dagger/ Traditional IoC/DI Diagram
71. Dependencies in the UserListFragment
72. http://square.github.io/dagger/
74. dagger demo http://square.github.io/dagger/
75. view pager indicator viewpagerindicator.com
76. viewpagerindicator.com
77. viewpagerindicator.com
78. viewpagerindicator.com
79. gradle
81. build process easier to manage
82. gradle files demo
83. resources Gradle Plugin User Guide http://tools.android.com/tech-docs/new-build-system/user-guide youtube.com/watch?v=LCJAgPkpmR0 IO 2013 -Android Gradle Plugin Intro Docs
84. “its like selenium, but for android” code.google.com/p/robotium
85. public class EditorTest extends ActivityInstrumentationTestCase2<EditorActivity> { private Solo solo; public EditorTest() { super("com.test.editor", EditorActivity.class); } public void setUp() throws Exception { solo = new Solo(getInstrumentation(), getActivity()); } public void testPreferenceIsSaved() throws Exception { solo.sendKey(Solo.MENU); solo.clickOnText("More"); solo.clickOnText("Preferences"); solo.clickOnText("Edit File Extensions"); Assert.assertTrue(solo.searchText("rtf")); solo.clickOnText("txt"); solo.clearEditText(2); solo.enterText(2, "robotium"); solo.clickOnButton("Save"); solo.goBack(); solo.clickOnText("Edit File Extensions"); Assert.assertTrue(solo.searchText("application/robotium")); } @Override public void tearDown() throws Exception { solo.finishOpenedActivities(); } } code.google.com/p/robotium
86. code.google.com/p/robotium
87. androidbootstrap.com
88. Generate Your Next Project Gradle - Android Studio - AppCompat - NavigationDrawer Maven - IntelliJ - ActionBarSherlock - SlidingMenu androidbootstrap.com alpha.androidbootstrap.com USE THIS ONE
90. androidbootstrap.com includes dagger otto action bar sherlock or app compat http-request gson view pager indicator robotium maven or gradle fragments api consumption image downloading image caching cache mechanism pojo support and much more... ahhhhhh yeah
91. uses template for your next project use as a reference a how to tutorial project MVP bootstrap androidbootstrap.com
92. Thank You. DONN FELKER donn@donnfelker.com @donnfelker gplus.to/donnfelker