Java 通过单击每个按钮显示列表值

如何在每次单击按钮时显示列表项。假设列表中有4个名字。当我按下“下一步”时，它会显示第一个名字。然后按“下一步”时，它会显示第二个名称，依此类推

我认为唯一的方法是使用list.get方法。但是我不知道如何使用这个方法，所以它知道列表中有多少值，然后在每次点击按钮时显示。我想我需要使用这个方法，但是我没有任何运气

public class ZaidimasActivity extends ZaidejaiActivity {

    public TextView mPlayer;
    public TextView mKlausimas;
    public Button mNext;
    public Button mBack;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_zaidimas);
         /** //get the player list from ZaidejaiActivity
        Bundle recdData = getIntent().getExtras();
        String myVal = recdData.getString("playerList"); */

        Intent zaidejuInfo = getIntent();
        Bundle extrasBundle = zaidejuInfo.getExtras();
        final ArrayList<String> players = extrasBundle.getStringArrayList("playerList");

        //show the first players name

        mPlayer = (TextView)findViewById(R.id.ZaidejoVardas);
        players.size();

        mPlayer.setText(players.get(0));




        mNext = (Button)findViewById(R.id.KitasBtn);
        mNext.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                mPlayer.setText(players.get(1));


            }
        });


        mBack = (Button)findViewById(R.id.GryztiMeniuBtn);
        mBack.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent gryztiMeniu = new Intent(ZaidimasActivity.this, ZaidejaiActivity.class);
                startActivity(gryztiMeniu);
            }
        });
    }

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现在，维护一个用于存储全局数组索引的变量，并在每次单击按钮时递增该变量

private int count = 0; // Global array index. Make it as class field   

final ArrayList<String> players = extrasBundle.getStringArrayList("playerList");



mPlayer = (TextView)findViewById(R.id.ZaidejoVardas);
players.size();

mPlayer.setText(players.get(0));




mNext = (Button)findViewById(R.id.KitasBtn);
mNext.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        count++;
        mPlayer.setText(players.get((count)%players.size())); //Incrementing global count and making sure it never exceeds the players list size


    }
});