Question

adapter.getFilter（）。filter（s）;嗨我查看并研究了如何实现过滤搜索，我仍然无法让我的工作。目前我正在使用带有hashmap的listadapter来显示listview。现在我如何使用listadapter来执行搜索功能？以下是我的代码：

private ListAdapter adapter;
ArrayList<HashMap<String, String>> eventsList;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
      setContentView(R.layout.homepage);
      searchBar.addTextChangedListener(filterTextWatcher);

// HashMap for ListView
eventsList = new ArrayList<HashMap<String, String>>();
adapter = new SimpleAdapter(HomepageActivity.this, eventsList,
R.layout.list_event, new String[] { TAG_EID, TAG_ENAME, TAG_CNAME, TAG_CREATED_AT },
new int[] { R.id.eid, R.id.ename, R.id.cname, R.id.created_at });

// updating listView
setListAdapter(adapter);
}
private TextWatcher filterTextWatcher = new TextWatcher() { 

    public void afterTextChanged(Editable s) { 
    } 

    public void beforeTextChanged(CharSequence s, int start, int count, 
            int after) { 
    } 

    public void onTextChanged(CharSequence s, int start, int before, 
            int count) { 
        adapter.getFilter().filter(s);<--- THIS IS WHERE I GOT ERROR
    } 

}; 

@Override 
protected void onDestroy() { 
    super.onDestroy(); 
    searchBar.removeTextChangedListener(filterTextWatcher); 
}

Answer 1

简单的简短回答是您必须延长ListActivity而不是Actity 因为我面临同样的问题，我的提示参考是

The method setListAdapter(ArrayAdapter) is undefined for the type ReminderListActivity

如何实现listAdapter的过滤搜索？

1 个答案: