Question

我试图在autoCompleteTextView中显示联系人列表到目前为止我已成功实现了这一点，但我需要使用与contact_id相关的名称如何将id与名称绑定？

我使用hashmap存储联系人列表。

这是我的联系代码并将其添加到hashmap

        Cursor cursor_number=getActivity().getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null,null,null,null);
        if(cursor_number!=null){

            if (cursor_number.moveToFirst()){
                do{
                    contact_id=cursor_number.getString(cursor_number.getColumnIndex(ContactsContract.Data._ID));
                    if(Integer.parseInt(cursor_number.getString(cursor_number.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)))>0) {
                        Cursor cursor_number1 = getActivity().getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                                null,
                                ContactsContract.Data.CONTACT_ID + " = ? ", new String[]{contact_id}, null);
                        if (cursor_number1 != null) {
                            while (cursor_number1.moveToNext()) {
                                String name=cursor_number1.getString(cursor_number1.getColumnIndex(ContactsContract.Data.DISPLAY_NAME));
                                String id=contact_id;
                                HashMap<String, String> contact_data=new HashMap<String, String>();
                                contact_data.put(id,name);
                            }
                            cursor_number1.close();
                        }
                    }

                }

                while (cursor_number.moveToNext());
                cursor_number.close();
            }
        }

这就是我如何将适配器添加到autoComplete textView

    autoCompleteTextView =(AutoCompleteTextView) this.getActivity().findViewById(R.id.act_network_auto_search);
    autoCompleteTextView.setThreshold(2);
    checkContacts();
    Collection<String> collection=contact_data.values();
    String[] array= collection.toArray(new String[collection.size()]);
    adapter = new ArrayAdapter<String>(getContext(),
            android.R.layout.simple_dropdown_item_1line,array);
    autoCompleteTextView.setAdapter(adapter);

如何获得与id

相关联的name

任何帮助都会很棒！

更新：

LinkedHashMap<String, String> contact_data=new LinkedHashMap<String, String>();
contact_data.put(id,name);

Answer 1

请查看此示例AutocompleteTextView

Answer 2

如果你确定名字是unqe

，你可以从contact_data获取id

public String getIdByName(String name) {
    for (Entry<String,String> entry : contact_data.entrySet()) {
        if (name.equals(value, entry.getValue())) {
            return entry.getKey();
        }
    }
    return null;
}

检查此answer

Answer 3

如果强制您使用关键价值对而不是我将sugest使用LinkedHashMap insted Hasmap，因为hashmap没有排序。

您可以将数据放入linkedhasmap中，与hashmap相同，如下所示

LinkedHashMap<String,String> lH = new LinkedHashMap<String,String>();
lH.put(id,name);

在自动完成文本视图中执行以下操作

autoCompleteTextView.setOnItemClickListener(new OnItemClickListener() {

    @Override
    public void onItemClick(AdapterView<?> parent, View arg1, int pos,
            long id) {
            String key = (new ArrayList<String>(lH.keySet())).get(pos);
            you will have your id in key
       }
});

你也可以通过从列表器中初始化lH.keySet来提高效率也看看这个 http://docs.oracle.com/javase/7/docs/api/java/util/LinkedHashMap.html 对于LinkedHashMap

向AutocompleteTextview Adapter添加两个值

3 个答案: