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android / platform / frameworks / support / 8e0e8b060c03ced8e59d1711716cfa31c0372f13
commit8e0e8b060c03ced8e59d1711716cfa31c0372f13[log] [tgz]
authorViktor Yakovel <[email protected]>Fri Apr 04 13:12:58 2025 +0000
committerViktor Yakovel <[email protected]>Tue Apr 15 06:50:30 2025 +0000
treef53d3b88f914505f66017fc8195c34c6bd5d54aa
parentf6d8b2f9277dcee4d1ec6661b933243abc43794d [diff]
Use lambda for contentDescription update in Picker

Providing lambda removes a lot of recompositions

Benchmark before:
PickerBenchmarkTest_start[compilation=BaselineProfile]
gfxFrameJankPercent            min      4.1,   median      5.4,   max      6.2
gfxFrameTime50thPercentileMs   min     11.0,   median     11.0,   max     12.0
gfxFrameTime90thPercentileMs   min     18.0,   median     18.0,   max     19.0
gfxFrameTime95thPercentileMs   min     19.0,   median     22.5,   max     25.0
gfxFrameTime99thPercentileMs   min     26.0,   median     27.0,   max     29.0
gfxFrameTotalCount             min    463.0,   median    499.5,   max    515.0
memoryHeapSizeLastKb           min  5,284.0,   median 13,912.0,   max 24,853.0
memoryRssAnonLastKb            min 36,352.0,   median 47,616.0,   max 62,976.0
memoryRssFileLastKb            min 88,512.0,   median 88,864.0,   max 89,044.0
Traces: Iteration 0 1 2 3 4 5 6 7 8 9

After:
PickerBenchmarkTest_start[compilation=BaselineProfile]
gfxFrameJankPercent            min      0.4,   median      0.6,   max      1.0
gfxFrameTime50thPercentileMs   min     11.0,   median     11.0,   max     11.0
gfxFrameTime90thPercentileMs   min     13.0,   median     14.0,   max     14.0
gfxFrameTime95thPercentileMs   min     14.0,   median     14.0,   max     15.0
gfxFrameTime99thPercentileMs   min     16.0,   median     18.0,   max     24.0
gfxFrameTotalCount             min    465.0,   median    490.0,   max    513.0
memoryHeapSizeLastKb           min  8,476.0,   median 16,029.5,   max 24,838.0
memoryRssAnonLastKb            min 41,984.0,   median 53,248.0,   max 66,048.0
memoryRssFileLastKb            min 90,612.0,   median 91,066.0,   max 91,124.0
Traces: Iteration 0 1 2 3 4 5 6 7 8 9

Bug: 408977237
Bug: 406241231
Test: PickerBenchmarkTest
Relnote: N/A

Change-Id: I002ddc35c8177181e6f06e90cf4c0f48a7b474af
10 files changed
tree: f53d3b88f914505f66017fc8195c34c6bd5d54aa
  1. .github/
  2. .idea/
  3. activity/
  4. annotation/
  5. appcompat/
  6. appfunctions/
  7. appintegration/
  8. appsearch/
  9. arch/
  10. asynclayoutinflater/
  11. autofill/
  12. benchmark/
  13. binarycompatibilityvalidator/
  14. biometric/
  15. browser/
  16. buildSrc/
  17. buildSrc-tests/
  18. busytown/
  19. camera/
  20. car/
  21. cardview/
  22. collection/
  23. compose/
  24. concurrent/
  25. constraintlayout/
  26. coordinatorlayout/
  27. core/
  28. credentials/
  29. cursoradapter/
  30. customview/
  31. datastore/
  32. development/
  33. docs/
  34. docs-public/
  35. docs-tip-of-tree/
  36. documentfile/
  37. draganddrop/
  38. drawerlayout/
  39. dynamicanimation/
  40. emoji/
  41. emoji2/
  42. enterprise/
  43. exifinterface/
  44. external/
  45. fragment/
  46. glance/
  47. gradle/
  48. graphics/
  49. gridlayout/
  50. health/
  51. heifwriter/
  52. hilt/
  53. ink/
  54. input/
  55. inspection/
  56. interpolator/
  57. javascriptengine/
  58. kruth/
  59. leanback/
  60. lifecycle/
  61. lint/
  62. lint-checks/
  63. loader/
  64. media/
  65. mediarouter/
  66. metrics/
  67. navigation/
  68. navigation3/
  69. paging/
  70. palette/
  71. pdf/
  72. percentlayout/
  73. performance/
  74. placeholder/
  75. placeholder-tests/
  76. playground-common/
  77. playground-projects/
  78. preference/
  79. print/
  80. privacysandbox/
  81. profileinstaller/
  82. recommendation/
  83. recyclerview/
  84. remotecallback/
  85. resourceinspection/
  86. room/
  87. safeparcel/
  88. samples/
  89. savedstate/
  90. security/
  91. sharetarget/
  92. slidingpanelayout/
  93. sqlite/
  94. stableaidl/
  95. startup/
  96. swiperefreshlayout/
  97. test/
  98. testutils/
  99. text/
  100. tracing/
  101. transition/
  102. tv/
  103. tvprovider/
  104. vectordrawable/
  105. versionedparcelable/
  106. viewpager/
  107. viewpager2/
  108. wear/
  109. webkit/
  110. window/
  111. work/
  112. xr/
  113. .gitignore
  114. build.gradle
  115. cleanBuild.sh
  116. code-review.md
  117. CONTRIBUTING.md
  118. gradle.properties
  119. gradlew
  120. libraryversions.toml
  121. license-baseline.txt
  122. LICENSE.txt
  123. OWNERS
  124. PREUPLOAD.cfg
  125. README.md
  126. settings.gradle
  127. studiow
  128. TEXT_OWNERS
README.md

Android Jetpack

Revved up by Develocity

Jetpack is a suite of libraries, tools, and guidance to help developers write high-quality apps easier. These components help you follow best practices, free you from writing boilerplate code, and simplify complex tasks, so you can focus on the code you care about.

Jetpack comprises the androidx.* package libraries, unbundled from the platform APIs. This means that it offers backward compatibility and is updated more frequently than the Android platform, making sure you always have access to the latest and greatest versions of the Jetpack components.

Our official AARs and JARs binaries are distributed through Google Maven.

You can learn more about using it from Android Jetpack landing page.

Contribution Guide

For contributions via GitHub, see the GitHub Contribution Guide.

Note: The contributions workflow via GitHub is currently experimental - only contributions to the following projects are being accepted at this time:

Code Review Etiquette

When contributing to Jetpack, follow the code review etiquette.

Accepted Types of Contributions

  • Bug fixes - needs a corresponding bug report in the Android Issue Tracker
  • Each bug fix is expected to come with tests
  • Fixing spelling errors
  • Updating documentation
  • Adding new tests to the area that is not currently covered by tests
  • New features to existing libraries if the feature request bug has been approved by an AndroidX team member.

We are not currently accepting new modules.

Checking Out the Code

Head over to the onboarding docs to learn more about getting set up and the development workflow!

Continuous integration

Our continuous integration system builds all in progress (and potentially unstable) libraries as new changes are merged. You can manually download these AARs and JARs for your experimentation.

Password and Contributor Agreement before making a change

Before uploading your first contribution, you will need setup a password and agree to the contribution agreement:

Generate a HTTPS password: https://android-review.googlesource.com/new-password

Agree to the Google Contributor Licenses Agreement: https://android-review.googlesource.com/settings/new-agreement

Getting reviewed

  • After you run repo upload, open r.android.com
  • Sign in into your account (or create one if you do not have one yet)
  • Add an appropriate reviewer (use git log to find who did most modifications on the file you are fixing or check the OWNERS file in the project's directory)

Handling binary dependencies

AndroidX uses git to store all the binary Gradle dependencies. They are stored in prebuilts/androidx/internal and prebuilts/androidx/external directories in your checkout. All the dependencies in these directories are also available from google(), or mavenCentral(). We store copies of these dependencies to have hermetic builds. You can pull in a new dependency using our importMaven tool.