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kotlinlang

Hi ,

What is the difference between an anonymous function and lambda function in terms of creating instances .

 Use Case:
 

   Calling below methods from different activities and the livedata (OnInitSuccess) is Publicly accessible

 

Anonymous:

  
  OnInitSuccess.observe(this, Observer { "test data".printIt() })

 

Lambda :

    
  OnInitSuccess.observe(this) {
"test data ".printIt() }

   




 ( The app crashes when we try with lambda function, I tried finding the solution in docs and in tutorials but couldn't find any ,    
Here is the exception:


java.lang.IllegalArgumentException: Cannot add the same observer with different lifecycles )

It's due to how Kotlin is optimizing the lambda to avoid extra object creation.

<https://stackoverflow.com/a/54939860/697031>