Mobile Developer Interview Questions

There are a few key things that are important for a mobile user experience designer to keep in mind when designing apps. The first is that mobile devices have smaller screens than desktop computers, so the app interface needs to be designed for a smaller screen. The second is that mobile users are often on the go and may not have the time or patience to navigate a complicated app interface.

  • Things do not happen “automagically”, nor is working with raw NSDictionaries appropriate and maintainable.
  • This process involves breaking down objects into primitives that Android can understand.
  • ‘OK, Google’ feature allows access to Google to the users without touching your smartphones.
  • It is important for a mobile app developer to have a good understanding of mobile app users and their needs as this will enable them to create apps that are user-friendly and meet the needs of their target audience.
  • Swift adopts safe programming patterns and adds modern features to make programming easier, more flexible, and more fun.

We have how to become a mobile developerd a list of the top frequently-asked iOS interview questions that will help you ace your iOS job interview. This question can help the interviewer get a sense of your knowledge about the industry and how you feel about it. You can use this opportunity to show that you are aware of current trends in mobile app development, including what’s popular and what’s not.

What are the options for laying out UI on iOS?

Just like in VIPER architecture, you route from one RIB to another using router, and that structures the entire runtime of your app in as a tree structure with parent and children RIBs. Since the view is optional, unlike with VIPER, your application tree structure might or might not mimic your view hierarchy. FRP is becoming more commonplace in iOS apps and will be used more with Apple’s official support of this programming paradigm with Combine. Alternatively, you could take a completely radical approach, which is to use different technology like ASDK . ASDK is made specifically for list views with dynamic content size and is optimized to calculate cell heights in a background thread, which makes it super performant. Knowing your options for laying out things on the screen is crucial when you need to solve different UI challenges on iOS.

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The second will demonstrate that you can bring new ideas to its programming environment. Although you may have a favorite development platform you prefer to work with, your answer to this question should align with the software platforms the hiring organization uses.

Enumerate the three key loops when monitoring an activity

Scrolling performance is a big issue with UITableViews and quite often can be very hard to get right. When the user scrolls, every next cell needs to calculate its content and then height before it can be displayed.

Is a mobile developer a full stack developer?

A mobile full stack developer is a software development specialist who can operate on both the server and client sides of digital products. These technical specialists usually work on the entire stack of a software program, which includes front and back end parts, server, database, API, and more.

This is a fundamental design pattern Apple keeps pushing onto iOS developers. Most likely every single interviewer will ask about this regardless whether you’re applying for a senior or junior position. We might think the apps we build are something special because they cover a unique use case. But your typical iOS application is just a giant, glorified run loop. It waits for user input and gets interrupted by external signals such as phone calls, push notifications, home gestures/button presses, and other app life cycle events.

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This is touted as “multi-platform,” meaning that it also supports iOS devices, relaying via the Apple Push Notification service under the hood. The native data storage solution for Android is SharedPreferences.

application development process

If you only have experience with one or two, mention that as well. Remember we mentioned the part about not being in communication with your mobile app developer? If all goes well, you will have hired a professional mobile app developer with whom you can establish a professional working relationship. More importantly, they will be there for you long after the app is sent to the app store.

Once an app has been developed and is thoroughly tested, it’s time to launch. Your iOS developers for example should have experience submitting the app to various the Apple app store and other major platforms. Mobile app design isn’t as simple as choosing pretty colours and images to use. Take a close look at the developer’s portfolio to see if creativity has been built into the app, and if the user interface and user experience is something you enjoy. Once you have that list, ask the developer what functionalities and features they have experience developing. If your app requires very specific integrations that need to be included, then you’ll need to work with a developer with experience.


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