DroidCon India - Coding With Your Hands Tied

Transcript

1. Coding With Your Hands Tied - A session on Android Library development
2. Introduction
3. About Me Darshan Pania Lead Android SDK Developer CleverTap https:/ /github.com/CleverTap/clev ertap-android-sdk Twitter - @i_m_Pania
4. Helping marketing, product and growth teams at B2C companies retain their users for life. We enable this at scale, in real-time and with precision by providing a unique combination of: 1. A unified user data platform 2. Actionable insights and segmentation 3. Timely, personalized omni-channel engagement What does do?
5. What to expect from this session? • Interactive
6. What to expect from this session? • Interactive • Informative
7. What to expect from this session? • Interactive • Informative • Educative
10. Apps vs Libraries App Library What is the difference?
11. Dependencies used by Apps • Networking ◦ Volley ◦ Retrofit • Image/GIFs ◦ Glide ◦ Picasso • Video ◦ ExoPlayer • Databases ◦ Room ◦ Realm ◦ greenDAO • Dependency Injection ◦ Dagger ◦ ButterKnife • UI Components ◦ Constraint Layout
12. This is how an App’s build.gradle file looks like -
13. Dependencies used by Libraries • Networking ◦ None • Image/GIFs ◦ None • Video ◦ None • Databases ◦ None • Dependency Injection ◦ None • UI Components ◦ None
14. Dependencies used by CleverTap SDK • Networking ◦ None • Image/GIFs ◦ Glide • Video ◦ ExoPlayer • Databases ◦ None • Dependency Injection ◦ None • UI Components ◦ None
15. This is how CleverTap SDK’s build.gradle file looks like -
16. Solutions for Libraries
17. How do Libraries handle Networking? • HTTPS Connection • A custom queueing mechanism
18. Setting up HTTPS connections
19. Setting up a queueing mechanism
20. How do Libraries handle Images/GIFs/Videos? • LRUCache • ExoPlayer is the best!
21. Initializing a LRUCache
22. Adding a Bitmap or GIF byte array data to the LRUCache
23. Using ExoPlayer to stream videos
24. Part I - Prepare the media to be shown
25. Part II - Play the media
26. How do Libraries handle Databases? • SQLite
27. Creating Tables, handling Database initialization and Database upgrade
28. How do Libraries handle Dependency Injection? • Good old findViewById
29. A simple XML Layout
30. Handling UI views in code
31. How do Libraries handle UI layouts? • Legacy is the only way for us...
32. XML Layout for our Inbox Activity
33. What can we do better?
34. How to publish Libraries? • Setup Bintray account • Setup your build.gradle • Package and Publish
35. Setup a Bintray Account
36. Bintray is your friend!
37. Add a New Repository!
38. Give your repository a name, select “Maven” as a type
39. Setup your build.gradle
40. Add your Bintray username and API key to local.properties In the build.gradle of your library module
41. implementation ‘com.darshan.logg:logg:1.0’
42. At the end of your build.gradle file, you need to add this
44. Package and Publish
45. Now run two Gradle commands on your Terminal/Android Studio
46. Add your library to JCenter
48. Q&A
49. That’s all folks! Darshan Pania, CleverTap @i_m_Pania