Image optimization for decreasing app size

September 07, 2017

83

Image optimization for decreasing app size

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

Aydar

September 07, 2017

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Transcript

IMAGE OPTIMIZATION FOR DECREASING APP SIZE Aydar Mukhametzyanov (Freeletics)
LET ME TELL THE STORY…
0 27.5 55 82.5 110 Before After THE STORY MB
THE STORY
THE STORY
THE STORY
OPTIMIZATION
OPTIMIZATION by Xcode
OPTIMIZATION Asset size 12.9 MB 197.3 MB 196.3 MB -1
MB by Xcode Bundle size
ImageOptim https://imageoptim.com OPTIMIZATION
Original PNG 1.8 MB Optimized PNG 1.2 MB OPTIMIZATION –
33%
OPTIMIZATION
Original PNG 1.8 MB Lossy optimized PNG 498 KB OPTIMIZATION
– 72%
OPTIMIZATION
Original JPG 1.4 MB Lossy optimized JPG 79 KB OPTIMIZATION
– 94%
OPTIMIZATION /Applications/ImageOptim.app/Contents/MacOS/ImageOptim *.png
PNG to JPG ? CONVERTING
CONVERTING
CONVERTING sips -s format jpeg -s formatOptions 100 “image.png" --out
"image.jpg" SIPS
{ "images" : [ { "idiom" : "universal", "filename" :
"welcome-photo-man.jpg", "scale" : "1x" }, … Content.json CONVERTING
PULL_REQUEST_TEMPLATE.md PROCESSES
0 27.5 55 82.5 110 Before After CONCLUSION MB
CONCLUSION
ImageOptim PULL_REQUEST_TEMPLATE.md CONCLUSION SIPS CONVERTING OPTIMIZATION PROCESSES Xcode +
aydarin [email protected] @aydarmukh QUESTIONS THANK YOU