使用ActionBar菜单按钮从ListView中删除任务

public class MainActivity extends AppCompatActivity {
    private List<Task> taskList;
    private ListView listView;
    private TaskAdapter taskAdapter;

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

        // 初始化任务列表数据
        taskList = new ArrayList<>();
        taskList.add(new Task("任务1", "描述1"));
        taskList.add(new Task("任务2", "描述2"));
        taskList.add(new Task("任务3", "描述3"));

        // 初始化ListView和适配器
        listView = findViewById(R.id.listView);
        taskAdapter = new TaskAdapter(this, taskList);
        listView.setAdapter(taskAdapter);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();

        if (id == R.id.action_delete) {
            // 弹出确认删除对话框
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle("确认删除");
            builder.setMessage("确定要删除选中的任务吗？");
            builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // 从List中移除选中的任务
                    int position = listView.getCheckedItemPosition();
                    taskList.remove(position);
                    taskAdapter.notifyDataSetChanged();
                }
            });
            builder.setNegativeButton("取消", null);
            builder.show();
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}