执行自定义listView中微调程序的onItemSelected中的代码

public class MainActivity extends AppCompatActivity {

    private ListView listView;
    private ArrayAdapter<String> adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listView = findViewById(R.id.listView);
        List<String> items = Arrays.asList("Item 1", "Item 2", "Item 3");
        adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, items);
        listView.setAdapter(adapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                // 执行自定义代码
                String selectedItem = (String) parent.getItemAtPosition(position);
                Toast.makeText(MainActivity.this, "Selected: " + selectedItem, Toast.LENGTH_SHORT).show();
            }
        });
    }
}

listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); // 或 CHOICE_MODE_MULTIPLE
listView.setOnItemClickListener(...);

adapter.notifyDataSetChanged();