Android 过滤列表视图

Question

我需要一些帮助来解决我遇到的问题。我正在尝试获取我在应用程序中使用的列表视图的特定部分。这是我的列表视图中的内容：

public void onCreate(Bundle savedInstanceState){
        super.onCreate(savedInstanceState);
        setContentView(R.layout.plovdiv);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        ListView schedule = (ListView) findViewById(R.id.pld_schedule);
        String TIME = "";
        ArrayList <HashMap<String, Object>> items = new ArrayList<HashMap<String,Object>>();

        HashMap<String, Object> hm; hm = new HashMap<String, Object>();

        Calendar c = Calendar.getInstance(); 
        int hours = c.get(Calendar.HOUR);
        int minutes = c.get(Calendar.MINUTE);
        Log.i("Time","Hours : "+hours+" minutes : "+minutes);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "06:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "06:30");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "07:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "07:30");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "08:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "09:15");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "10:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "10:45");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "11:30");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "12:15");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "13:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "13:45");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "14:30");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "15:15");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "16:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "16:30");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "17:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "17:30");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "18:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "18:40");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "19:30");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "20:00");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "20:40");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "21:40");
        items.add(hm);

        hm = new HashMap<String, Object>();
        hm.put(TIME, "22:30");
        items.add(hm);

        SimpleAdapter adapter = new SimpleAdapter(  this, items, R.layout.main_listview,
                                                    new String[]{TIME}, new int[]{ R.id.text});


        schedule.setAdapter(adapter);
        schedule.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

我想显示其中的项目从当前时间开始，列表视图的数字更大。

示例 现在是 10:30，所以我只想将 10:30 之后的项目显示为列表视图中的值： 10:45 、 11:30 等。我尝试过

String time= hours+" : "+minutes;
adapter.getFilter().filter(time);

，但它没有达到我想要的效果。

那么有什么建议如何做到这一点吗？

Answer 1

过滤过程对列表中的每个对象调用 toString 方法进行匹配。因此，您的对象的 toString() 应该返回时间字符串。

您现在可以做的是将字段包装在一个类中，并重写其 toString()，您将在其中返回时间成员。