CODEWITHSUNDEEP
androidlistview
KC Chai
KC Chai

Reputation: 1617

Public ArrayAdapter for ListView

Referring to the below codes. I wanted to know why do I need to put in one object and not all the objects from the strings. This codes are from a Custom ListView Adapter.

public ArrayAdapter (Context context, int textViewResourceId, T[] objects)

Working Fine 

public ListViewAdapter(Context context, String[] first, String[] second, String[] third) {
            super(context, R.layout.listview_item, first);
            this.context = context;
            this.first = first;
            this.second = second;
            this.third = third;
        }

Error if I do this. 

public ListViewAdapter(Context context, String[] first, String[] second, String[] third) {
        super(context, R.layout.listview_item, first, second, third);
        this.context = context;
        this.first = first;
        this.second = second;
        this.third = third;
    }

Error : The constructor ArrayAdapter(Context, int, String[], String[], String[]) is undefined

Original Source

public class ListViewAdapter extends ArrayAdapter<String> {
    Context context;
    String[] first;
    String[] second;
    String[] third;
    LayoutInflater inflater;

    public ListViewAdapter(Context context, String[] first, String[] second, String[] third) {
        super(context, R.layout.listview_item, first);
        this.context = context;
        this.first = first;
        this.second = second;
        this.third = third;
    }

Upvotes: 0

Views: 291

Answers (1)

Alexis C.
Alexis C.

Reputation: 93892

You should read about the principle of inheritance in Java. Your class is extending ArrayAdapter.

If you take a look at it, you see that no constructors of type ArrayAdapter(Context, int, String[], String[], String[]) are defined for this class.

That's why you can't do super(context, R.layout.listview_item, first, second, third);

Upvotes: 2

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