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我在网上看到了一些教程，如何通过解析或用户之间的聊天进行私人消息传递，但它们都很复杂，很难将其融入我的项目，而且其中大多数是聊天室而不是私人消息传递。

我要做的是找到在两个用户之间进行聊天的最简单方法。我的代码有点简单，我有一个文本字段和一个按钮，比如说userOne发送这些数字：1234。

然后userTwo在文本字段中输入相同的数字并按下按钮将其发送到parse.com，然后我有一个查询来查找它并查看用户之间是否存在匹配。

一旦匹配，我想问他们两个用户是否想聊天，如果是，那么他们可以互相聊天。

现在，我想从各位专业人士那里知道（:-D）我的选择是什么，

我考虑过用户之间的通知系统（甚至可能吗？）或者（因为创建聊天室很复杂）创建一个每 2 秒更新一次UILabel的NSTimer代码和另一个用户可以相互发送文本的文本字段。

我的另一个问题是，一旦我找到第二个用户 ID，我该如何保存它并以备后用？

我需要将它保存到 NSString 吗？

无论如何，这是我的查询代码（当您按下按钮发送到号码时）

PFObject *addValues= [PFObject objectWithClassName:@"someNumber"];
[addValues setObject:someNumbers forKey:@"numbers"];
[addValues setObject:whoIsTheUser forKey:@"theUser"];
[addValues saveInBackground];



PFQuery* numQuery = [PFQuery queryWithClassName:@"someNumber"];
[numQuery whereKey:@"numbers" equalTo:someNumbers];
[numQuery whereKey:@"theUser" notEqualTo:[PFUser currentUser]];
[numQuery findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
    if(!error) {
        //alert view for thanking the user for sending a message
        UIAlertView *messageForSending = [[UIAlertView alloc]initWithTitle:@"thank you" 
                                                                   message:@"the details has been send"
                                                                  delegate:nil
                                                         cancelButtonTitle:@"okay"
                                                         otherButtonTitles:nil];
        [messageForSending show];

        for(PFObject *numObject in objects) {
            // the numbers if found are right here

            if (objects.count > 1 ) {
                NSLog(@"yay we found %lu objects", (unsigned long)objects.count);
                // Here I can see what is the ID of the second user I want to create chat with
                NSLog(@" the numobject is  %@ " , numObject);
            } else {
                NSLog(@"there is no match ");
                // showing later UIAlert that there is no match             
            }

任何帮助，将不胜感激 ！谢谢你们 。

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1 回答 1

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for the DB model, you could have:

User table

The parse User table

Room table

A simple table with maybe the room name field and the pointer field to the user creator

Member table

Associative table between User and Room, since an User can partecipate to many Rooms and a single Room can contains many Users

Messages table

A simple table with the message field, and the pointer field to the Member, that means the user member of a specific Room.

In addition (as you probably already know), each table in Parse has default fields that are "objectId","createdAt","updatedAt" and "ACL". Those fields (except ACL) are automatically filled.

Hope this helps

于 2014-03-13T11:10:31.893 回答