Address ActivityEmbedding APIs feedback

1. Add descriptions on layoutDirection
2. See below Relnote
RelNote: "
1. Align the API naming - Use add/remove for multiple instances:
  - registerRule changes to addRule
  - unregisterRule changes to removeRule
2. Replace getSplitRules with getRules since ActivityRule is not a split rule
3. Add RuleController#setRules to set a bunch of rules
4. Extract rule related APIs from SplitController to singleton RuleController. They are:
  - addRule
  - removeRule
  - getRules
  - setRules
  - clearRules
  - parseRules
5. Extract #isActivityEmbedded from SplitController to singleton
   ActivityEmbeddingController. They are:
  - isActivityEmbedded
6. Remove SplitController#initialize. To set rules from XML file, please
   use RuleController#parseRules and #setRules.
   Before this change:
     SplitController.initialize(context, R.xml.static_rules)
   After this change:
     val ruleController = RuleController.getInstance(context)
     val rules = ruleController.parseRules(R.xml.static_rules)
     ruleController.setRules(rules)
7. We don't distinguish static rules with runtime rules anymore. That said,
   calling #clearRules results to clear all rules no matter they are
   registered with static XML rule definitions or at runtime. To have
   the legacy behavior of `SplitController#clearRegisteredRules`, please
   call `RuleController#parseRules` with the XML resources id and call
   `RuleController#setRules` to set back the rules again.
   Before this change:
     SplitController.getInstance(context).clearRegisteredRules()
   After this change:
     val ruleController = RuleController.getInstance(context)
     val rules = ruleController.parseRules(R.xml.static_rules)
     ruleController.setRules(rules)
"
Test: presubmit
Bug: 255952916

Merged-In: Ib39671fb22a9ccef3b0aa8967ee18c3168c54c63
Change-Id: Ib39671fb22a9ccef3b0aa8967ee18c3168c54c63
22 files changed
tree: a0be248b676574f35ec5e074e150f1a1d43ac81a
  1. .github/
  2. .idea/
  3. activity/
  4. ads/
  5. annotation/
  6. appactions/
  7. appcompat/
  8. appsearch/
  9. arch/
  10. asynclayoutinflater/
  11. autofill/
  12. benchmark/
  13. biometric/
  14. bluetooth/
  15. browser/
  16. buildSrc/
  17. buildSrc-tests/
  18. busytown/
  19. camera/
  20. car/
  21. cardview/
  22. collection/
  23. compose/
  24. concurrent/
  25. constraintlayout/
  26. contentpager/
  27. coordinatorlayout/
  28. core/
  29. credentials/
  30. cursoradapter/
  31. customview/
  32. datastore/
  33. development/
  34. docs/
  35. docs-kmp/
  36. docs-public/
  37. docs-tip-of-tree/
  38. documentfile/
  39. draganddrop/
  40. drawerlayout/
  41. dynamicanimation/
  42. emoji/
  43. emoji2/
  44. enterprise/
  45. exifinterface/
  46. external/
  47. fragment/
  48. frameworks/
  49. glance/
  50. gradle/
  51. graphics/
  52. gridlayout/
  53. health/
  54. heifwriter/
  55. hilt/
  56. input/
  57. inspection/
  58. interpolator/
  59. javascriptengine/
  60. leanback/
  61. lifecycle/
  62. lint-checks/
  63. loader/
  64. media/
  65. media2/
  66. mediarouter/
  67. metrics/
  68. navigation/
  69. paging/
  70. palette/
  71. percentlayout/
  72. placeholder/
  73. placeholder-tests/
  74. playground-common/
  75. preference/
  76. print/
  77. privacysandbox/
  78. profileinstaller/
  79. recommendation/
  80. recyclerview/
  81. remotecallback/
  82. resourceinspection/
  83. room/
  84. samples/
  85. savedstate/
  86. security/
  87. sharetarget/
  88. slice/
  89. slidingpanelayout/
  90. sqlite/
  91. startup/
  92. swiperefreshlayout/
  93. test/
  94. testutils/
  95. text/
  96. tracing/
  97. transition/
  98. tv/
  99. tvprovider/
  100. vectordrawable/
  101. versionedparcelable/
  102. viewpager/
  103. viewpager2/
  104. wear/
  105. webkit/
  106. window/
  107. work/
  108. .gitignore
  109. .mailmap
  110. build.gradle
  111. cleanBuild.sh
  112. code-review.md
  113. CONTRIBUTING.md
  114. gradle.properties
  115. gradlew
  116. libraryversions.toml
  117. LICENSE.txt
  118. OWNERS
  119. PREUPLOAD.cfg
  120. README.md
  121. settings.gradle
  122. studiow
  123. TEXT_OWNERS
README.md

Android Jetpack

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