How do i check if a Api response exists-CodePudding

I keep getting a null pointer exception i want to see if the response exists and if so println it out.

if (responsePlace.result.opening_hours.weekday_text.isNotEmpty() ){
println("The response for place time "   responsePlace.result.opening_hours.weekday_text[0].toString())}

CodePudding user response：

you can try this :

    responsePlace.let
    {
      when(it.isSuccessful) {
         true -> println(""The response for place time "   it.result.opening_hours.weekday_text[0].toString()")
         false -> println("something went wrong!")
        
    }

CodePudding user response：

Use the handy isNullOrEmpty() method in kotlin.

So your method will look like

if (!responsePlace.result.opening_hours.weekday_text.isNullOrEmpty()){
println("The response for place time "   responsePlace.result.opening_hours.weekday_text[0].toString())}

take care of the '!' negation at the start of the condition