CODEWITHSUNDEEP
androidkotlin
Libathos
Libathos

Reputation: 3362

How to write a custom getter if class properties are defined in the constructor?

I have been writing an app where at first I declared the class signature as below

data class MClass(val id: Int = 0,val descr: String, val timestamp: Long)

Now a need was created where I must have a custom getter for a field above. How can I write this custom getter? I know that If otherwise I could write something like 

data class(){
     val id=0
     val descr = ""
     get() = descr + "append smth"

     val timestamp:Long = 0

}

Upvotes: 2

Views: 4311

Answers (2)

AlexTa
AlexTa

Reputation: 5251

You could do something like below:

data class MClass(val id: Int = 0, private val descr: String, val timestamp: Long)  {
    val description: String
        get() = descr + "append smth"
}

Upvotes: 9

Victor Nidens
Victor Nidens

Reputation: 474

You can make it like that:

data class MClass(val id: Int = 0, private val _descr: String, val timestamp: Long) {
    val descr: String
        get() = _descr + "append something"
}

Upvotes: 1

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