error: this class should provide a default constructor, when creating apk

Question

I'm experiencing this error when building the apk: this class should provide a default constructor (a public constructor with no arguments)

I have searched for this error and a solution is to change the class name, I tried but the error occurs with others classes and after change the name of some classes comeback to the first one, I am in a bucle.

The first class I have the error is this

CustomaAdapter.java

public class CustomAdapter extends BaseAdapter {


// Declare Variables
Context context;
LayoutInflater inflater;
ImageLoader imageLoader;
private List<Juegos> juegoslist = null;
private ArrayList<Juegos> arraylist;


public CustomAdapter(Context context,
                     List<Juegos> juegoslist) {

    this.context = context;
    this.juegoslist = juegoslist;
    inflater = LayoutInflater.from(context);
    this.arraylist = new ArrayList<Juegos>();
    this.arraylist.addAll(juegoslist);
    imageLoader = new ImageLoader(context);

}

I can run the app in a device without problems but I can't create the apk. Someone can help me with this issue?

Thanks and regards,

Best Solution Works for me [check this](http://stackoverflow.com/questions/17420637/error-non-default-constructors-in-fragments/39608360#39608360) — Naeem Ibrahim, Sep 21 '16 at 05:53

score 1 · Accepted Answer · answered Aug 24 '15 at 17:20

1

When you override the constructor, the class understand that it doesn't exist anymore, because you are only defining the modified one. To resolve it just place an empty constructor in the class:

public CustomAdapter(){}

answered Aug 24 '15 at 17:20

GustavoCinque

166
8

1

Thanks Gustavo, it works. I had the problem in four classes, adding this code to every class, problem solved, – Rec Aug 24 '15 at 17:29

score 0 · Answer 2 · answered Aug 24 '15 at 17:27

Simply create a empty constructor for CustomAdapter class. Your final code should be like,

public class CustomAdapter extends BaseAdapter {


// Declare Variables
Context context;
LayoutInflater inflater;
ImageLoader imageLoader;
private List<Juegos> juegoslist = null;
private ArrayList<Juegos> arraylist;

// empty constructor
public CustomAdapter() {

} 

public CustomAdapter(Context context,
                     List<Juegos> juegoslist) {

    this.context = context;
    this.juegoslist = juegoslist;
    inflater = LayoutInflater.from(context);
    this.arraylist = new ArrayList<Juegos>();
    this.arraylist.addAll(juegoslist);
    imageLoader = new ImageLoader(context);

}

error: this class should provide a default constructor, when creating apk

2 Answers2