How do I add an item to a listView when a click event occurs?

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How do I add an item to a listView when a click event occurs?

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Well, I want to create a list of Tournaments. Where each item will be added to the click of a button create tournament, following the pattern: tournament 1, tournament 2, tournament 3 ...

android listview android-adapter

asked by anonymous 17.11.2017 / 17:02

1 answer

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score 1 · Answer 1

Save a reference from the List that you pass as a parameter to the adapter. Also keep reference to the adapter

private final List<Torneio> torneios = new ArrayList<>();
private MyAdapter adapter;

In the click event of the button, add an element to the list and then ask the adapter to update the list

public void onButtonClick(View v) {
    Torneio torneio = new Torneio("Torneio " + i);
    this.torneios.add(torneio);
    this.adapter.notifyDataSetChanged();
}