How would you architect a simple photo sharing app on iOS?
Senior Ios Engineer Interview Questions
621 senior ios engineer interview questions shared by candidates
Tell me about different an iOS architecture that you are familiar with
You will get a shock and surprise. Grocery Challenge project they have created and expecting the developer to fill in blanks with production-level code and that too in 30 mins, is crazy, dropping UI elements on story board with auto layout only take some 10-15 mins. In rest 15 mins what a developer can write at the most? Think if you want to write protocols, a different data source class, invoking a network API, writing a collection view cell class to bind data received from the network API. They want you to create a screen with a Question label at the top and below it 4 grid images and at bottom a Submit button. Data for Question label and images url comes from the server so you have to invoke a network api to get 1st Object of type Question , which has a array of type Answer Object, Answer object has field for imageURL. So once you get Question Object use answer array to load images. Answer object also has field called correct:Bool which tell whether this image is answer or not for that Question label. Even if you use buttons like IBOutletCollections , 15 mins are not at all enough to complete what is asked all. Very immature seems Instacart is not paying attention to this, either you should know this Grocery Challenge solved before even the test starts then you are good.
Write a function that takes any number of parameters and add them together. Example: 1, "2", 10.4 Example: "Bob", 5, "Ten" Example: no parameters
Q: there are two functions (in my work for the take home project), they have the same name, is one of them private?
How did you find/reach us?
Verbatim from the non-English engineer: "OS reads 4KB of data, the file can be 1KB but OS stores in 4K. It has this function: int read4K(buffer). Can you write function int read(buffer, int) that uses read4K(buffer) so apps can call it?"
How do you approach unit testing private methods in a codebase?
Interview mainly wanted to do a test project of a modified Fibonacci sequence algorithm.
Given a skeleton project, how would you implement a grid view with X behavior?
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