CODEWITHSUNDEEP
androidconstructorkotlin
Thomas VC
Thomas VC

Reputation: 67

Kotlin - Class secondary constructor with different parameter

Whilst converting a rather simple application from Java to Kotlin I came across one 'problem' I can't seem to fix.

I have a class ScanInfo that looks like this in Java (without getters and setters)

public class ScanInfo {
    private String source;
    private String label_type;
    private String data;

    public ScanInfo(Intent intent) {
        ... Get Info from intent and assign the values ...
        this.source = ...
        this.label_type = ....
        this.data = ....
    }
}

Now in Kotlin i can create the class 

class ScanInfo (var source: String, var label_type: String, var data: String)

But I have no idea how to get it to work so I can create a ScanInfo object with Intent as parameter. I tried with companion, object, companion object but I can't seem to find the right syntax.

Am I wrong to look for such a solution while using Kotlin or am I just not using the right kotlin-constructor? If it's possible, how can I create a ScanInfo object with an Intent as parameter?

var result = ScanInfo(intent)

Thanks in advance.

Upvotes: 1

Views: 469

Answers (1)

Alex Romanov
Alex Romanov

Reputation: 11963

That's the way: 

class ScanInfo(intent: Intent) {
    private val source = intent.source
    private val labelType = intent.labelType
    private val data = intent.data
}

OR

class ScanInfo(intent: Intent) {
    private val source: String
    private val labelType: String
    private val data: String

    init {
        source = intent.data
        labelType = intent.data
        data = intent.data
    }
}

Upvotes: 2

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