public class Lista1 extends AppCompatActivity implements AdapterView.OnItemClickListener {

    ListView lista;
    RelativeLayout screen;

    String[] temp;
    String[] tabload;
    ArrayList<String> list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_lista1);
        screen = (RelativeLayout) findViewById(R.id.lista1);
        loadAll();

    }

    public void loadData() {
        BufferedReader input = null;
        StringBuffer buffer = null;
        String wynik = "";
        File dir = new File(getExternalFilesDir(null), "Data.txt");
        try {
            FileInputStream fis = new FileInputStream(dir);
            InputStreamReader isr = new InputStreamReader(fis);
            BufferedReader br = new BufferedReader(isr);
            String line;
            buffer = new StringBuffer();

            while ((line = br.readLine()) != null) {
                wynik = wynik + line + " ";
            }
            String delims = "[ ]+";
            String[] tab2 = wynik.split(delims);
            tabload = new String[tab2.length];
            for (int i = 0; i < tab2.length; i++) {
                tabload[i] = tab2[i];
            }
            temp = new String[((tab2.length) / 7) * 2];
            int j = 0;
            int ilosc = (tab2.length) / 7;

            for (int i = 0; i < ilosc; i++) {
                temp[j] = tab2[0 + (i * 7)];
                temp[j + 1] = tab2[1 + (i * 7)];
                j = j + 2;
            }
            int k = 0;
            for (int i = 0; i < ilosc; i++) {
                if (!list.contains(temp[k] + " " + temp[k + 1])) {
                    list.add(temp[k] + " " + temp[k + 1]);
                }
                k = k + 2;
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }


    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        int ilosc = list.size();
        String gra = "";
        String rok = "";
        String czas = "";
        String platna = "";
        for (int i = 0; i < ilosc; i++) {
            if (position == i) {
                gra = tabload[i * 7];
                rok = tabload[(i * 7) + 1];
                czas = tabload[(i * 7) + 2];
                platna = tabload[(i * 7) + 3];
            }
        }
        Bundle dane = new Bundle();
        dane.putString("Gra", gra);
        dane.putString("Rok", rok);
        dane.putString("Czas", czas);
        dane.putString("Oplata", platna);
        final Intent intencja = new Intent(this, Szczegoly.class);
        intencja.putExtras(dane);
        startActivityForResult(intencja, 123);

    }

    protected void onResume() {
        super.onResume();
        SharedPreferences odbierz = getSharedPreferences("MyPreferences", MODE_PRIVATE);
        int color = odbierz.getInt("Background", -1);
        screen.setBackgroundColor(color);
    }

    public void loadAll() {
        list = new ArrayList<>();
        loadData();

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, list);
        lista = (ListView) findViewById(R.id.listView);
        lista.setOnItemClickListener(this);
        lista.setAdapter(adapter);
    }
}