Mobile Programming

FirebaseInstanceIdService is deprecated now

Whats new i Andorid O?

Whats new in Android N?

Android Best Practices

Important Tools and Libraries for developing Android Applications

Creating a Recycler View with Server paginated results.

Configure Retrofit for Basic Auth

Basic Auth Login Module in Android

Android Login Module with Server Side Java

OAuth2 Authentication with retrofit and Spring Boot

Handling OAuth2 Refresh Token in Retrofit & Android

Showing a Fragment in Android while waiting for network response

Using Sqlite in Android

Using Offline Queue in Andorid

FCM Intergration with Android

Integrating CCAvenue Payment Gateway with Andorid

Integrating PayUMoney with Android

FCM Integration in Android

Integrating Google Authentication in Android Application

How will you handle network response when activity is switched to background?

What is Async Task?

What is difference between Volley, Retrofit and AsyncTask?

What is right way to show Splash Screen in Android App?

How will you deliver new version to your end users?

How does the Android notification system work?

How can two distinct Android apps interact?

What are the four states of the Activity Lifecycle?

What is the difference between a fragment and an activity? Why do we need a Fragment?

How can activity and Fragment interact with each other?

What is the difference between Serializable and Parcelable? Which is the best approach in Android?

What is an Implicit Intent?

What is an Explicit Intent?

What is ANR? When does it happen? How to prevent it?

Describe how broadcasts and intents work to be able to pass messages around your app?

What is the difference between Service and IntentService? How is each used?

What is the relationship between the life cycle of an AsyncTask and an Activity? What problems can this result in? How can these problems be avoided?

How would you preserve Activity state during a screen rotation?

How will you call a OAuth2 secured REST endpoint from Android Application?

How to Interact with other Apps and services?

What is Deep Link? How to handle deep link in Android Application? How will you open a link clicked in email using your App?

How to allow other Apps to start your Activity?

How to get results from an Activity?

Add randomness (jitter) to any network requests that trigger as a result of a repeating alarm

Making REST operations Idempotent by adding GUID, Okhhtp client in Retrofit can retry a failed operation multiple times, so our backend shall be ready for this.