Image optimization for decreasing app size

Presentation for The Munich iOS Developer Meetup lightning talk hosted at Freeletics

Transcript

1. IMAGE OPTIMIZATION FOR DECREASING APP SIZE Aydar Mukhametzyanov (Freeletics)
2. LET ME TELL THE STORY…
3. 0 27.5 55 82.5 110 Before After THE STORY MB
4. THE STORY
5. THE STORY
6. THE STORY
7. OPTIMIZATION
8. OPTIMIZATION by Xcode
9. OPTIMIZATION Asset size 12.9 MB 197.3 MB 196.3 MB -1 MB by Xcode Bundle size
10. ImageOptim https://imageoptim.com OPTIMIZATION
11. Original PNG 1.8 MB Optimized PNG 1.2 MB OPTIMIZATION – 33%
12. OPTIMIZATION
13. Original PNG 1.8 MB Lossy optimized PNG 498 KB OPTIMIZATION – 72%
14. OPTIMIZATION
15. Original JPG 1.4 MB Lossy optimized JPG 79 KB OPTIMIZATION – 94%
16. OPTIMIZATION /Applications/ImageOptim.app/Contents/MacOS/ImageOptim *.png
17. PNG to JPG ? CONVERTING
18. CONVERTING
19. CONVERTING sips -s format jpeg -s formatOptions 100 “image.png" --out "image.jpg" SIPS
20. { "images" : [ { "idiom" : "universal", "filename" : "welcome-photo-man.jpg", "scale" : "1x" }, … Content.json CONVERTING
21. PULL_REQUEST_TEMPLATE.md PROCESSES
22. 0 27.5 55 82.5 110 Before After CONCLUSION MB
23. CONCLUSION
24. ImageOptim PULL_REQUEST_TEMPLATE.md CONCLUSION SIPS CONVERTING OPTIMIZATION PROCESSES Xcode +
25. aydarin aydar.mukh@gmail.com @aydarmukh QUESTIONS THANK YOU