Problems
- What did you study yesterday/this week?
- Why are you passionate about software development?
- What kind of control system are you familiar with?
- Have you been involved in a GitHub project?
- Do you participate in iOS open source projects on GitHub or other sites of the same type?
- Please describe your iOS app development process.
- Are you familiar with Cocoapods? What is it? How does that work?
- Please summarize your understanding of software licensing and its impact on software development.
- Please summarize the testing process when you build your iOS app. How does the iOS app support other languages, date formats, and currency units?
- Please describe the instruments and its role.
About iOS Technology
- Please explain what handoff is and how it can be used to interoperate with iOS and mac/Web applications.
- What technologies and services does icloud include?
- What does iOS extension mean? Can you list some popular or common examples?
- What is HealthKit?
- What is HomeKit?
- What is Apple pay? Can you describe how to use Apple Pay in your app?
- Please explain the iOS app sandbox mechanism.
- What is voiceover? Please explain the accessibility features (accessibility) in iOS for example. How do developers use these features?
- How does the iOS app implement background multitasking (multitasking)?
- What are Game Center features for iOS games?
- What is ibeacons?
- What is Cocoa/cocoa touch?
- Please summarize what core audio,core data and core location are. What do they mean for iOS apps?
- Please describe the role of Spritekit and Scenekit.
- What is metal?
- What is the response chain (Responder Chain)? How does it work?
- What actions do buttons and other control methods respond to?
- What role does the Appdelegate play?
- Please explain nsuserdefaults. As far as you are concerned, how would you serialize the array objects on disk?
- How will you store the user's authentication information?
- What is Keychain service?
- Why is caching and compression on mobile devices essential?
- Please explain ~/documents,~/library and ~/tmp. What directory is in iOS?
- How does the airplay work? What would you do with programming to improve the usability of your application and demonstrate the results?
- How does the sensor, IO, and WiFi, dial-up Connections work on the iOS platform? What is the value of their use? Please give a brief talk about your point of view.
- What are the hardware performance differences between the IPad 2,ipad mini 1-3,ipad Retina,ipad Air 2,iphone 5, 5S, 6, and 6+? What are the limitations of performance-focused applications?
About programming
- What does Cocoa touch contain? What does it contain?
- Why does the class name for Cocoa touch start with two uppercase letters?
- What are swift and objective-c respectively? What is the difference between the two, and what is the connection?
- Why is optional important in the Swift language?
- Please explain nserror. Under what circumstances can nserror be used in swift, and under what circumstances?
- Please explain how to use instancetype and its importance.
- When should I use a let in swift, and when should I use Var?
- Why is the map function necessary? Under what circumstances should it be used?
- What tools would you choose to track bugs?
- If a bug is found in cocoa, what will you do with it?
- How can I fix a new version of the app if it regression? How do I prevent users from encountering new bugs during their use?
- How does the Objective-c class perform? How is the OBJECTIVE-C runtime implemented?
- How does iOS improve security and protect users ' privacy information?
- Apps can download and display data instantly. How to determine the best location for downloads based on MVC?
- How does MVC affect the design of the code base (Codebase)?
- What are the debugging methods for Controller life-cycle and view life-cycle respectively?
- What design patterns are used by iOS (Patterns)? What design patterns are used in your code base?
- What threads does iOS provide? How do I make the most of these threads?
- Please briefly describe the process of uiscrollview execution. How does it respond to gesture recognition (Gesture recognizer), multi-Touch (multi-touch), and run loop?
- What APIs do you think iOS needs to add or improve?
About the interface
- What are the screen resolutions for IPhone5, 6, 6+, and ipad Air 2, respectively?
- What is the resolution calculation unit?
- Please explain the role of interface Builder and the concept of nib files.
- What is the image storage type for IOS UI?
- Please describe the difference between the storyboard and the standard nib file.
- What is the device status bar? How high? Is it transparent? How does it appear when you're on a phone call or in a navigation state?
- What is the navigation bar (Navigation bar)? Can you come up with your iphone and indicate which apps you downloaded use the navigation bar?
- What are the tabs (tab bar) and toolbars (Toolbar) respectively? What are the similarities and differences between the two?
- What is a table view? What is a collection view (Collection views)?
- When does the "Eject (Popover)" Property work best?
- What is a Split-view controller?
- What kind of content is the picker view (Picker views) suitable for?
- Under what circumstances should labels, text fields, and text views be used?
- What does a segmented control (segmented control) do?
- What is the modal view (Modal view)?
- What type of iOS notifications are?
About Design
- What does the iOS app icon mean? Please describe it in as much detail as possible.
- What is the application icon for the minimum size and maximum size?
- Can the app icon contain transparent parts?
- What is the difference between a newsstand icon and a regular application?
- Please explain the splash screen (Launch Images).
- What does auto layout do? Please summarize how it works.
- Why add animations when designing software?
- Please describe the interaction and feedback in software design.
- What are the factors that should be considered when designing iphone and ipad apps?
- Please describe the meaning of prototyping for software development. What is its role?
About the app Store
- In-app purchases (In-app Purchases) What's going on? What are the new experiences that IAP can bring to users?
- Have you ever published an app on the App store? Can you summarize the process?
- What is ITunes Connect?
- Provisioning profiles is the point?
- What is the App ID?
- What are the similarities and differences between iOS development and publishing signing certificates?
- How do I use TestFlight? How do I use the UUID when I publish an app through Ad-hoc?
- When should I validate my purchase receipt?
- What are the requirements for publishing iads (Apple platform ads)?
Fun Quiz
- Have you developed any interesting things recently? What's your most proud piece of work?
- What are the advantages of your common development tools?
- Who is your most admired standalone Mac or iOS app developer?
- What's your favorite item? What kind of?
- What do you think is the need to improve Xcode?
- Which APIs do you like best on iOS?
- Do you have the most favorite error report?
- Which method do you like best to test whether a new technology works?
- Why is the dictionary called Dictionaries, not Hashtable or HashMap?
Other references
- iOS Dev Weekly (iOS development Weekly)
- Accidental Tech Podcast
- Debug Podcast
- The Talk Show
- Nshipster
- Kzbootstrap (a project that facilitates iOS project initialization)
- WWDC Videos
- ASCII WWDC (text version, searchable)
- Pttrns (iOS mobile app interface sharing platform)
- Ray Wenderlich Tutorials (Ray Wenderlich tutorial)
- IOS Version Stats (information sharing platform)
- iOS Human Interface Guidelines (iOS HMI Guide)
- Black Pixel blog post on hiring IOS and Mac engineers (Black Pixel blog)
- Macoscope guides to a technical interview (Macoscope Technical interview Guide)
100 iOS Development/design Surface Questions Summary
