This is Slides which Desmond and I presented on Android Day at SG 6th, April, 2019

1. Google Play Instant
Improving User Engagement
Desmond Teo
@desmondtzq
John Chang
@johnchang

2. Global TV powered by Fans

3. Agenda
Benefits
Implementation
1
2

4. Mobile time spent

5. Work hard

6. Work hard Installs: 15

7. Instant Experience

8. Lightweight by design

9. Use first,
decide later
Basic Instant Experience

10. Installing the app with the instant experience

11. Use first,
decide later
Basic Instant Experience
● TRY NOW button
● Evaluate app with experience
● Delay install decision

12. Launching instant app from search result

13. Launching instant app from a shared link

14. Supercharged
discovery
Enhanced Instant Experience
● App links
● Multiple entry points
● Direct app experience

17. 5.2x watch time
vs. mobile web

18. 70% install rate
vs. 28% from organic play store traffic

19. 1.5x user registration
30% more daily watch
time

20. 3x subscription
rate

21. Viki Instant App
https://developer.android.com/stories/instant-app
s/viki
● Higher engagement
● Generates more value
● Key growth driver

22. 22
Implementation

23. 23https://codelabs.developers.google.com/codelabs/android-instant-apps/index.html

24. 24
Prerequisites
● Android Studio 3.3 or higher
● Google Play Instant Development SDK
● device with Android 5.0(Lollipop) or higher

25. 25
To provide a basic instant experience, your app must be no larger than 10 MB.
To provide an enhanced experience, reduce your app's size to less than 4 MB.

26. 26
Before we begin to implement the instant, let's
build existing code as app bundle

27. 27
APK format
master-apks in App Bundle
Res: 212.5 KB
Res: 2.9 MB

28. 28
6MB 3.5MB

29. 29Choose running from app bundle

30. 30
Only one line declaration in the manifest.xml

31. 31Check ‘Deploy as instant app’

32. 32

33. 33
App Releases
Android Instant Apps

34. 34
If you want to scale out the discovery of app, you must create app
links for instant app

35. 35

36. 36

37. 37
Video page
Celebrity page
…..
website
statement
list
deeplink

38. 38
Prerequisites
● All intent filters used as app links in your instant app must support both
HTTP and HTTPS.
● Only one instant app can be declared for each website domain.
From Create App Links for Instant Apps

39. 39
By Android Studio, we can edit app links

40. 40From Statement List Generator and Tester

41. 41
https://presentation-abbce.firebaseapp.co
m

42. 42
To provide a basic instant experience, your app must be no larger than 10 MB.
To provide an enhanced experience, reduce your app's size to less than 4 MB.

43. 43
Reduce the size of instant app
● Shrink your codes/resources
● Remove unused alternative resources
● Remove extra files
● Reduce file size of images

44. 44
Reduce the size of instant app
● Shrink your codes/resources
● Remove unused alternative resources
● Remove extra files
● Reduce file size of images

45. 45
classes.dex: 1.9 MB
classes.dex: 691.9 KB

46. 46
Reduce the size of instant app
● Shrink your codes/resources
● Remove unused alternative resources
● Remove extra files
● Reduce file size of images

47. 47
resources.arsc: 487.2 KB
resources.arsc: 248 KB

48. 48
Reduce the size of instant app
● Shrink your codes/resources
● Remove unused alternative resources
● Remove extra files
● Reduce file size of images

49. 49
Reduce the size of instant app
● Shrink your codes/resources
● Remove unused alternative resources
● Remove extra files
● Reduce file size of images

50. 50

51. 51

52. 52
Install API

53. 53
How do I transfer data from an instant app to an installed app?

54. 54
What do we achieve now?
Build app bundle and declare
instant app inside
Add app link and create the
statement list
Reduce size of instant app
Provide install dialog and
migrate data to full app

55. 55
https://github.com/johnchangviki/android-topeka

56. 56
Complement

57. 57
If these is not enough to achieve size restriction, Refactor into multiple feature
modules
base.apk config.apk
config.apk
instant-enabled
non-instant
.apk
App Bundle
base.apk
instant-enabled
instant.apk
instant-enabled
App Bundle
extract
extract

58. 58
When demand from instant-enabled, app bundle ships instant app.
config.apknon-instant
.apk
App Bundle
base.apk
instant-enabled
instant.apk
instant-enabled
base.apk
instant.apk
config.apk
generate
APK

59. 59
When demand from installation, app bundle ships installed app.
config.apknon-instant
.apk
App Bundle
base.apk
instant-enabled
instant.apk
instant-enabled
base.apk
non-instant
.apk
config.apk
generate
APK

60. 60
How to extract our example?
Installation Instant

61. 61
base.apk
instant-quiz.apk
quiz.apk
new
move

62. 62

63. 63

64. 64
BaseSplitActivity.kt
CategorySelectionActivity.kt

65. 65
When save the app bundle on play store, it wran you join the beta program

66. 66
Remember confirmation is within 1-2 weeks

67. 67

68. 68

69. 69

70. 70

71. 71

72. 72

73. 73App Bundle Explorer