通过 Parse 在我的 Android 应用中检索与我的电话联系人列表匹配的用户列表 [英] Retrieving list of users in my Android App through Parse that match my Phone Contact List

问题描述

我正在使用 Parse 开发一个 Android 聊天消息应用程序，在我成功完成的注册过程中，我正在保存用户的电话号码、用户名和密码.现在，我想获取已保存在电话联系人列表下与其电话号码匹配的用户列表，并在列表视图中显示用户.我被困在编写 Parse 查询并在列表视图中显示获取的用户.

I am developing a Android Chat Messaging App Using Parse where I am saving user's phone number, username and password during the sign up process that I have completed successfully. Now I want to fetch the list of users already saved under the Phone Contact list matching their phone numbers and display the users in a list view. I am stuck of writing the Parse query and showing the fetched users in a list view.

我正在尝试使用以下代码，但仍然一无所知.

I am trying to play around the following code, but clueless yet.

ParseUser user1 = ParseUser.getCurrentUser();
ParseQuery<ParseUser> parseQuery = user1.getQuery();
parseQuery.whereEqualTo("PhoneNumber", some_ph_no_from_my_contact);
parseQuery.findInBackground(new FindCallback<ParseUser>() {

    @Override
    public void done(List<ParseUser> numberList, ParseException e) {
        // TODO Auto-generated method stub

        if(e == null){
            for (int i = 0; i < numberList.size(); i++) 
            {
                // What to do here?
            }
        }
        else{
            Log.d("userId", "Error: " + e.getMessage());
        }
    }
});

请帮忙.

推荐答案

您可以使用 OR 查询:

public void getFriends(List<String> numbers) {
    List<ParseQuery<ParseUser>> queries = new ArrayList<ParseQuery<ParseUser>>();
    for (String number : numbers) {
        ParseQuery<ParseUser> parseQuery = ParseUser.getQuery();
        parseQuery.whereEqualTo("PhoneNumber", number);
        queries.add(parseQuery);
    }

    ParseQuery<ParseUser> userQuery = ParseQuery.or(queries);

    userQuery.findInBackground(new FindCallback<ParseUser>() {

        @Override
        public void done(List<ParseUser> numberList, ParseException e) {
            if (e == null) {
                for (int i = 0; i < numberList.size(); i++) {
                    // What to do here?

                    //Use this list of ParseUser (numberList) in an ArrayAdapter
                    //or save it in a database
                }
            }
        }
    });
}

Listnumbers 将是用户地址簿中的电话号码列表.

List<String> numbers would be the list of phone numbers from the user's addressbook.

一旦你有了 List 只需将它提供给 ArrayAdapter 或将它保存在本地数据库中，你的选择(我会选择数据库).

Once you have the List<ParseUser> just feed it to an ArrayAdapter<ParseUser> or save it in a local database, your choise (I'd go with the database).

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