Image grid discovery screen
Design a discovery screen full of thumbnail tiles, like Snapchat Discover. It scrolls infinitely and every tile shows a network image. Focus on which thread does the image decoding and how you cap memory.
iOS system designShort answerAdvanced
The first screen is a grid of photo thumbnails from an API, and tapping one opens a detai…
#image-loading #prefetch
iOS system designShort answerIntro
A travel booking app goes list → detail → booking. For each screen, how do you decide whe…
#prefetch #memory
iOS system designShort answerAdvanced
Design an infinite-scroll feed screen like Twitter's from the iOS client's point of view.…
#image-loading
iOS system designShort answerBasics
For a mobile feed, would you paginate by offset or by cursor (keyset)? Justify it with th…
#prefetch