Download to read offline
![APK PATCH SIZE ESTIMATORhttps://github.com/googlesamples/apk-patch-size-estimator
$ python apk_patch_size_estimator.py --old-file ~/Downloads/IKO3_android_rc_v3.106.114_b8907.apk
--new-file ~/Downloads/IKO3_android_rc_v3.106.122_b9513.apk
New APK size on disk: 29999643 bytes [28.6MB]
Estimated download size for new installs:
Full new APK (gzipped) size: 26227473 bytes [25MB]
Estimated download size for updates from the old APK, using Bsdiff:
Bsdiff patch (gzipped) size: 6858901 bytes [6.54MB]
Estimated download size for updates from the old APK,
using File-by-File:
File-by-File patch (gzipped) size: 3167479 bytes [3.02MB]](https://image.slidesharecdn.com/mce-170509123516/85/Save-users-data-21-320.jpg)
![MIGRATING
<vector android:height="50dp"
android:viewportHeight="48.0"
android:viewportWidth="48.0"
android:width="50dp"
xmlns:android=„[…]”>
<path
android:fillAlpha="1"
android:fillColor="@color/iko_blue"
android:pathData=„M40.09,[…]”
android:strokeColor="#00000000"/>
</vector>
iko_ic_topup.png iko_ic_topup.xml](https://image.slidesharecdn.com/mce-170509123516/85/Save-users-data-105-320.jpg)
![MIGRATING
<vector android:height="50dp"
android:viewportHeight="48.0"
android:viewportWidth="48.0"
android:width="50dp"
xmlns:android=„[…]”>
<path
android:fillAlpha="1"
android:fillColor="@color/iko_blue"
android:pathData=„M40.09,[…]”
android:strokeColor="#00000000"/>
</vector>
SVG
AS
Import](https://image.slidesharecdn.com/mce-170509123516/85/Save-users-data-106-320.jpg)
![MIGRATING
<vector android:height="50dp"
android:viewportHeight="48.0"
android:viewportWidth="48.0"
android:width="50dp"
xmlns:android=„[…]”>
<path
android:fillAlpha="1"
android:fillColor="@color/iko_blue"
android:pathData=„M40.09,[…]”
android:strokeColor="#00000000"/>
</vector>
SVG
inloop
svg2android](https://image.slidesharecdn.com/mce-170509123516/85/Save-users-data-107-320.jpg)
![„if your code makes a call to Resources.getIdentifier(), code is
looking up resource names based on dynamically-generated
strings.
[…] resource shrinker behaves defensively by default and marks all
resources with a matching name format as potentially used and
unavailable for removal.”
https://developer.android.com/studio/build/shrink-code.html
RESOURCE SHRINKING](https://image.slidesharecdn.com/mce-170509123516/85/Save-users-data-142-320.jpg)
Uploaded byMateusz Grzechociński
Save users' data!
This document discusses tips for reducing APK size for mobile apps. It begins by analyzing the current state of an app's APK size of 62MB in mid-2016. Various graphics optimization techniques are explored, such as using vector drawables, image formats like WebP, and resource shrinking. These optimizations reduced the APK size by 73% to 17MB by today. The document provides recommendations like optimizing graphics, experimenting with different image formats, using vector drawables, and using the APK analyzer tool.
![[db tech showcase Tokyo 2018] #dbts2018 #C32 『Deep Dive on the Amazon Aurora ...](https://cdn.slidesharecdn.com/ss_thumbnails/dbts2018c32awsaurorapostgresqlpublic-180929165410-thumbnail.jpg?width=640&height=640&fit=bounds)
Save users' data!
- 2.
- 3.
- 4. SAVE USERS’ DATA! Tips for reducing the APK size. Mateusz Grzechociński Jacek Karaśkiewicz
- 8.
- 9. 1mlnUsers in Dec2016
- 10.
- 11.
- 12. 62MBAPK size inmid 2016
- 13.
- 14.
- 15.
- 16. RAW VS DOWNLOAD •Focus on both
- 17. RAW VS DOWNLOAD •Focus on both • Install size
- 18. RAW VS DOWNLOAD •Focus on both • Install size • Update size
- 19. RAW VS DOWNLOAD •Focus on both • Install size • Update size
- 20. APK PATCH SIZEESTIMATORhttps://github.com/googlesamples/apk-patch-size-estimator
- 21. APK PATCH SIZEESTIMATORhttps://github.com/googlesamples/apk-patch-size-estimator $ python apk_patch_size_estimator.py --old-file ~/Downloads/IKO3_android_rc_v3.106.114_b8907.apk --new-file ~/Downloads/IKO3_android_rc_v3.106.122_b9513.apk New APK size on disk: 29999643 bytes [28.6MB] Estimated download size for new installs: Full new APK (gzipped) size: 26227473 bytes [25MB] Estimated download size for updates from the old APK, using Bsdiff: Bsdiff patch (gzipped) size: 6858901 bytes [6.54MB] Estimated download size for updates from the old APK, using File-by-File: File-by-File patch (gzipped) size: 3167479 bytes [3.02MB]
- 22.
- 23.
- 24.
- 25. AAPT • No colors? •No alpha?
- 26. AAPT • No colors? •No alpha? Standard PS Export 720x510 RGBA
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- 30.
- 31.
- 32. AAPT • No colors? •No alpha? • 256 colors?
- 33. AAPT • No colors? •No alpha? • 256 colors? Standard PS Export 1440x1268 RGBA 2192 colors
- 36.
- 37.
- 38.
- 39.
- 40. 53MBres/ in GIT vs AAPTEFFICIENCY MID 2016
- 41. 53MBres/ in GIT vs AAPTEFFICIENCY MID 2016 res/ in APK
- 42. 53MBres/ in GIT vs 50,3MB AAPTEFFICIENCY MID 2016 res/ in APK
- 43. 53MBres/ in GIT vs 50,3MB 5% reduction „forfree” AAPT EFFICIENCY MID 2016 res/ in APK
- 44. WHAT IF 256? 1440x1268RGBA PNG 2192 colors 1440x1268 RGBA PNG 251 colors vs
- 45. WHAT IF 256? 1440x1268RGBA PNG 2192 colors 1440x1268 RGBA PNG 251 colors vs 123KB
- 46. WHAT IF 256? 1440x1268RGBA PNG 2192 colors 1440x1268 RGBA PNG 251 colors vs 123KB 57KB
- 47.
- 48.
- 49.
- 50. • *.png ANDROID IMAGEFORMATS
- 51. • *.png • *.jpg ANDROIDIMAGE FORMATS
- 52. • *.png • *.jpg •*.webp ANDROID IMAGE FORMATS
- 53. • *.png • *.jpg •*.webp • *.bmp ANDROID IMAGE FORMATS
- 54. • *.png • *.jpg •*.webp • *.bmp ANDROID IMAGE FORMATS • *.gif
- 55. • *.png • *.jpg •*.webp ANDROID IMAGE FORMATS
- 56.
- 57.
- 58. PNGQUANT Lossy PNG compressor + ZOPFLI Verygood, but slow, deflate or zlib compression.
- 59.
- 60. ZOPFLI INPUT 1200x869 RGBA 64249 colors 566KB 1200x869RGBA 64249 colors 459KB (-19%)
- 61. 1200x869 RGBA 64249 colors 459KB(-19%) PNGQUANT 1200x869 Palette 256 colors 126KB (-78%) INPUT 1200x869 RGBA 64249 colors 566KB ZOPFLI
- 62. ZOPFLI + PNGQUANT 1200x869Palette 256 colors 117KB (-80%) 1200x869 RGBA 64249 colors 459KB (-19%) INPUT 1200x869 RGBA 64249 colors 566KB PNGQUANT 1200x869 Palette 256 colors 126KB (-78%) ZOPFLI
- 63.
- 64.
- 65.
- 66.
- 67. CONVERT Convert between imageformats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more
- 68.
- 69. GUETZLI Perceptual JPEG encoder + BUTTERAUGLI Estimatesthe psychovisual difference between two images
- 70. 1200x869 RGBA PNG 64249colors 566KB
- 71. guetzli binary search w/BA 2.0 1200x869 RGBA PNG 64249 colors 566KB
- 72. guetzli binary search w/BA 2.0 1200x869 RGB JPEG quality 90 105KB 1200x869 RGBA PNG 64249 colors 566KB
- 73. vs 1200x869 Palette 256 colors 117KB 1200x869RGB JPEG quality 90 105KB
- 74.
- 75. WEBP API 14+ • Lossy& non-transparent • better than JPEG
- 76. WEBP API 18+ • Lossless& transparent • better than PNG API 14+ • Lossy & non-transparent • better than JPEG
- 77. WEBP API 18+ • Lossless& transparent • better than PNG API 14+ • Lossy & non-transparent • better than JPEG
- 78. 1200x869 RGBA PNG 64249colors 566KB
- 79. 1200x869 RGBA PNG 64249colors 566KB WebP Lossy
- 80. 1200x869 RGB WebP quality80% 61KB 1200x869 RGBA PNG 64249 colors 566KB WebP Lossy
- 81. vs 1200x869 RGB JPEGby Guetzli quality 90 105KB 1200x869 RGB WebP quality 80% 61KB
- 82. APK RAW SIZE#1 62MB vs MID 2016
- 83. APK RAW SIZE#1 62MB vs MID 2016 + Graphics optimizations
- 84. APK RAW SIZE#1 62MB vs 31MBMID 2016 + Graphics optimizations
- 85. 50% reduction APK RAW SIZE#1 62MB vs 31MBMID 2016 + Graphics optimizations
- 86.
- 87.
- 88.
- 89.
- 90.
- 91.
- 92.
- 93.
- 94.
- 95. 31MB vs APK RAWSIZE #2 Graphics optimizations
- 96. 31MB vs APK RAWSIZE #2 + Removed all mdpi + Removed all but xxxhdpi for large gfx Graphics optimizations
- 97. 31MB vs 22MB APK RAWSIZE #2 + Removed all mdpi + Removed all but xxxhdpi for large gfx Graphics optimizations
- 98. 31MB vs 22MB 29% reduction APK RAWSIZE #2 + Removed all mdpi + Removed all but xxxhdpi for large gfx Graphics optimizations
- 99.
- 100.
- 101.
- 102. VECTORDRAWABLE • Native support21+ • „gradle" way
- 103. VECTORDRAWABLE • Native support21+ • „gradle" way • „support” way
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- 105.
- 106.
- 107.
- 108.
- 109. POTRACE Transforming bitmaps intovector graphics
- 110.
- 111. $ potrace -siko_ic_topup.bmp BMP SVG
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- 113.
- 114.
- 115.
- 116. ISSUES <layer-list /> drawableon Lollipop <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <shape android:shape="rectangle"> <solid android:color="@color/iko_white"/> <padding android:top="7dp" android:bottom="7dp" android:left="7dp" android:right="7dp"/> </shape> </item> <item android:drawable=„@drawable/ic_logo_visa"/> </layer-list>
- 117. ISSUES <layer-list /> drawableon Lollipop <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <shape android:shape="rectangle"> <solid android:color="@color/iko_white"/> <padding android:top="7dp" android:bottom="7dp" android:left="7dp" android:right="7dp"/> </shape> </item> <item android:drawable=„@drawable/ic_logo_visa"/> </layer-list>
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- 119.
- 120.
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- 123.
- 124.
- 125.
- 126. 22MB vs APK RAWSIZE #3 Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx
- 127. 22MB vs APK RAWSIZE #3 + Switched toVD + Reusing icons Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx
- 128. 22MB vs 20MB APK RAWSIZE #3 + Switched toVD + Reusing icons Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx
- 129. 22MB vs 20MB 9% reduction APK RAWSIZE #3 + Switched toVD + Reusing icons Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx
- 130.
- 131. ~310 PNG icons~160VD files
- 132.
- 133.
- 134.
- 135.
- 136. RESOURCE SHRINKING android { … buildTypes{ release { minifyEnabled true shrinkResources true } } }
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- 138.
- 139.
- 140.
- 141.
- 142. „if your codemakes a call to Resources.getIdentifier(), code is looking up resource names based on dynamically-generated strings. […] resource shrinker behaves defensively by default and marks all resources with a matching name format as potentially used and unavailable for removal.” https://developer.android.com/studio/build/shrink-code.html RESOURCE SHRINKING
- 143. 20MB vs APK RAWSIZE #4 Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons
- 144. 20MB vs APK RAWSIZE #4 + Shrinked resourcesGraphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons
- 145. 20MB vs 19MB APK RAWSIZE #4 + Shrinked resourcesGraphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons
- 146. 20MB vs 19MB 5% reduction APK RAWSIZE #4 + Shrinked resourcesGraphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons
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- 148.
- 149.
- 150.
- 151.
- 152.
- 153. RESOURCES.ARSC android { … defaultConfig { resConfigs„pl”, „en” } }
- 154. 19MB vs APK RAWSIZE #5 Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons Shrinked resources
- 155. 19MB vs APK RAWSIZE #5 + Fixed list of configurations Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons Shrinked resources
- 156. 19MB vs 17MB APK RAWSIZE #5 + Fixed list of configurations Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons Shrinked resources
- 157. 19MB vs 17MB 10% reduction APK RAWSIZE #5 + Fixed list of configurations Graphics optimizations Removed all mdpi Removed all but xxxhdpi for large gfx Switched toVD Reusing icons Shrinked resources
- 158.
- 159. vs mid 2016 vstoday APK RAW SIZE
- 160. vs 73% reduction mid 2016 vstoday APK RAW SIZE
- 161. APK SPLIT XXXHDPI XXHDPI XHDPIHDPI APK
- 162. APK SPLIT XXXHDPI XXHDPIXHDPI HDPI APK APK APKAPK
- 163.
- 164. PROTIPS • Optimize yourgraphics
- 165. PROTIPS • Optimize yourgraphics • Use any tool you choose
- 166. PROTIPS • Optimize yourgraphics • Use any tool you choose • Experiment with PNG/JPEG/WebP
- 167. PROTIPS • Optimize yourgraphics • Use any tool you choose • Experiment with PNG/JPEG/WebP • Switch doVD
- 168. PROTIPS • Optimize yourgraphics • Use any tool you choose • Experiment with PNG/JPEG/WebP • Switch doVD •Start playing with APK Analyzer
- 169.
- 170. SEE ALSO • ColtMcAnlis (Google) • #perfMatters videos onYouTube • „Image compression for Android dev” video from Google I/O 2016 • Articles on Medium
- 171. SEE ALSO • ColtMcAnlis (Google) • #perfMatters videos onYouTube • „Image compression for Android dev” video from Google I/O 2016 • Articles on Medium • Wojtek Kaliciński (Google) • „Put your app on diet” video from Google I/O 2016 • #SmallerAPK articles on Medium
- 172.
- 173.