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POIPhone Instant message Client desgin problem
 

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  1. POIPhone Instant message Client desgin problem
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    <p>I am writing an IM Client on iphone.// post ref: #IMClient01. Here is my initial design of it:</p> <pre><code>(UIView*)LogInWindow; // to log in (UITabBarController*) MainTabBarController;//have three tabs, namely:Contacts, Chats, My Profile (UITableViewController*)ContactsController; //manages a list of contact/user (UITableViewController*)ChatsController; //manages a list of chat history, each row is a chat with a different person (UIViewController *)ChatController; //manages a chat/conversation with a single user. </code></pre> <p>As in Skype on IPhone, there are two ways to start a conversation/chat.You can either chat with a Skype user by tapping on the User from Contact or if there is a Chat History associated with the user, you can tap the Chat History in Chats. if the above scenario mapped to my controller classes: If Tapping a cell/row in ContactsController then push ChatController to top view. If Tapping a cell/row in ChatsController then push ChatController to top view.</p> <p>In the two push operations, it would something like:</p> <pre><code>[self.navigationController pushViewController:myChatController animated:YES]; </code></pre> <p>My first question is should myChatController be a singleton class? Unlike on computers,where you can have many chat windows open and each window manages a chat with a different person, in IPhone, there is only one top view/window, so only one chat window can be displayed?</p> <p>My second question: Would this be a good idea if ContactsController and ChatsController each has a ChatController instance variable that points to the same ChatController instance? So when a cell/row in ContactsController or ChatsController is tapped, the same ChatController instance is pushed to the top view to display the conversation?</p> <p>Am I explaining myself clear enough? I would really appreciate if someone can give some suggestions.</p>
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