Memory pressure from large images
You need to show a single 50MB photo on screen. If you just load it with UIImage(contentsOfFile:), how much memory does it take?
Memory pressure from large images
You need to show a single 50MB photo on screen. If you just load it with UIImage(contentsOfFile:), how much memory does it take?
Performance and debuggingShort answerAdvanced
A photo editing app gets frequent memory warnings and sometimes gets killed. In what orde…
#image #downsampling #memory #nscache
Performance and debuggingShort answerAdvanced
An iOS feature that edits and saves photos of tens of MB gets killed after a memory warni…
#downsampling #imageio #memory
iOS system designMultiple choiceIntro
You show 60 thumbnails of 4000×3000 JPEGs in a 3-column grid and memory jumps to several …
#image #downsampling #memory
Performance and debuggingMultiple choiceBasics
You decode a 100×100 pixel RGBA PNG (3KB on disk) to draw it on screen. Which value is cl…
#image #memory