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@paulfranco
paulfranco / Kotlin Interview Questions.md
Last active November 5, 2024 17:36

Interview Questions

Kotlin

Q1: What is a primary constructor in Kotlin? ☆☆

Answer: The primary constructor is part of the class header. Unlike Java, you don't need to declare a constructor in the body of the class. Here's an example:




  


  




    


          
    

      

        
        

          

              @paulfranco
          

          

            
                paulfranco
                / Android Interview Questions.md
            
            

              Last active
              October 2, 2024 20:29
            

          

        

      

        

  

      

    
Android Interview Questions


Q1: Explain activity lifecycle ☆☆


Answer:
As a user navigates through, out of, and back to your app, the Activity instances in your app transition through different states in their lifecycle.


To navigate transitions between stages of the activity lifecycle, the Activity class provides a core set of six callbacks: onCreate(), onStart(), onResume(), onPause(), onStop(), and onDestroy(). The system invokes each of these callbacks as an activity enters a new state.