<ol>
<li>What is Android?</li>
<li>What is an activity?</li>
<li>What is a fragment?</li>
<li>What is a service in Android?</li>
<li>What is the life-cycle of Android activity?</li>
<li>What is the AndroidManifest.xml file and why do you need this?</li>
<li>What is the intent?</li>
<li>What is a Toast? </li>
<li>What is the context?</li>
<li>What is SharedPreferences?</li>
<li>What is ANR in Android? What are the measures you can take to avoid ANR?</li>
<li>Difference between View.GONE and View.INVISIBLE?</li>
<li>Relative Layout vs Linear Layout.</li>
<li>What  is Constraint Layout </li>
<li>How does RecyclerView work internally? </li>
<li>What is Toast in Android?</li>
<li>What is an Implicit Intent?</li>
<li>What is an Explicit Intent? </li>
<li>What is Firebase?</li>
<li>How to use Firebase real-time database in your app?</li>
<li>What is Gradle? </li>
<li>What is the difference between val and var?</li>
<li>What is a data class in Kotlin? </li>
</ol>



1.  What is Android?
2. What is an activity?
3. What is a fragment?
4. What is a service in Android?
5. What is the life-cycle of Android activity?
6. What is the AndroidManifest.xml file and why do you need this?
7. What is the intent?
8. What is a Toast? 
9. What is the context?
10. What is SharedPreferences?
11. What is ANR in Android? What are the measures you can take to avoid ANR?
12. Difference between View.GONE and View.INVISIBLE?
13. Relative Layout vs Linear Layout.
14. What  is Constraint Layout 
15. How does RecyclerView work internally? 
16. What is Toast in Android?
17. What is an Implicit Intent?
18. What is an Explicit Intent? 
19. What is Firebase?
20. How to use Firebase real-time database in your app?
21. What is Gradle? 
22. What is the difference between val and var?
23. What is a data class in Kotlin? 



Top Android Interview Questions