Senior Mobile Application Developer Interview Questions and Answers

I have implemented third party integrations such as Firebase, Google Maps, and Facebook SDK.

• Implemented Firebase for real-time database and push notifications

• Integrated Google Maps API for location services

• Utilized Facebook SDK for social media login and sharing features

I have implemented payment integrations with Stripe and PayPal.

• Implemented Stripe payment integration for seamless checkout experience

• Integrated PayPal SDK for secure payment processing

• Utilized webhooks for real-time payment notifications

I have developed various mobile applications in the past.

• Developed a social media app using React Native

• Created a fitness tracking app using Swift

• Built a food delivery app using Kotlin

• Designed a travel booking app using Flutter

SharedPreferences lifetime is tied to the lifetime of the application.

• SharedPreferences are used to store key-value pairs in Android apps.

• They are stored in an XML file in the app's private directory.

• The data persists even if the app is closed or the device is restarted.

• However, the data is deleted if the app is uninstalled.

• The lifetime of SharedPreferences is tied to the lifetime of the application.