design patterns - iPhone Accessible Object Storage -

design patterns - iPhone Accessible Object Storage -

I am currently writing a multi-user social iPhone app that interfaces with a server.

I have a user class, which stores all the normal data about each user (name, id, etc.). However, where I am running fast, it is how well these users have to store.

Currently, I have a singleton called "UserManager", which stores an array of users in the app (the initial launch downloaded from the server prompted you to input some basic details ), As well as a separate user object to isolate the actual existing user of the app. The user list needs access to many different parts of the app, which includes a map that shows where they are (if they choose to disclose it), to enable them to send messages to other users. , e.t.c.

To be completely honest, the singleton solution does not fit right with me. I've always heard Siglaton to avoid it wherever possible, though, what's better for using it, its I know about

I only have a very basic understanding of design patterns, although obviously I know that its essential requirement is not a terrible idea.

So I came here to ask you good people in a way to store such data! I do not necessarily mean only the iPhone, this is a big problem.

You are on the right track that you Some types of data controllers want objects that will handle your user data objects from you. You can create this object singleton, or you can not optionally instantify your application controller (App Representative) to the Data Controller, and it is given to view controllers on each of their windows or launch time is. One advantage is that it will be easy to modify your data for many data controllers; This is not important for an iPhone app, but it could be a problem for a desktop app, in which multiple document windows could be opened at once. On the other hand, a singleton might be easy for code and prevent insects on the road.
You can find the last few paragraphs on interesting, it does talk about separating the model controller / visual controller roles.

03:22

Comments

Post a Comment

Popular Posts

google chrome extension - Reason for Uncaught Error: Attempting to use a disconnected port object -

While retrieving the request from the content script, I get this error in the background page. Does anyone know that this error What can be the reason? Full stack trace: Unwanted error: Attempt to use Chrome / Renderer Extension Binding Disconnected Port Objects: 147 Chrome.port Post Message Chrome / Renderer Extension Binings: 147 ChromeHird.port DicePatchOnConnect.Connect Event Chrome / Renderer Extension Binings: 89IExtension.fu SendResponse.state background.js: 1573db.readTransaction.tx.executeSql.paramStr background.js: 1038 This only happens when Reloading extension is not being helpful for a few hours - it is not that after restarting the Chrome browser it will be a solution that becomes normal for a few hours, content script may continue to send requests for background No response can be sent from the background. Is there any way that I can catch this unwanted error and reset the listener? I am using chrome.extension.onRequest.addListener for my communication. Bef...

visual studio 2010 - How to reinstall MVC 2 tools for VS2010? -

I uninstalled ASP.Net MVC 2 device for Visual Studio 2010. How can I restore it? MVC2 downloads seem to include only the VS2008 device. Whatever I said, says that MVC 2 has been included in VS2010, but the installation of an improvement did not fix it, and MVC 2 is not listed. Add VS2010 / Select a component in the Remove screen. You will get your VS2010ToolsMVC2.msi VS2010 DVD under WCU \ ASPNETMVC - hopefully it will do!

Git Bash script to check whether repo has any commits? -

I have a script on which I need to work differently if there is one, which is one or more , Commits. What is the best way to do this? Something like this will appear in the proxy code. #! / Bin / bash if [[`git log_count`] ==" 0 "]]; Then there is no commodity for this repo. # What goods ... and echo are "one or more committed!" # What are the other things? Any ideas? you can git rev-parse -verify HEAD (after :) This is a pipeline command, and its behavior vs. " git diff " There is very little possibility to change I find it more pronounced rev-parse -verify means "is this a valid object name?" This is your show-ref . You ask "Is there anything in this safe / head in the safe?" I ask, "what current head exists?" In practice, both of these are fair tests, because once you have a branch, so to achieve the HEAD , some mock values will indicate manually lack of editing It is very diffic...

Powered by Blogger