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• Help me choose between XML or SQL Lite on android

  - by Ngetha

  I have an android app that periodically, say once a week downloads content from a server in XML. The content is used by the app, different Acitivities use different parts of the content. My question is a design one, should I save the data in SQlite or just keep it as an XML file, which one would be faster to read? The app can only use one content piece at a time, which means subsequent XML content downloads replace the old one.

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• Reading a Text file in xcode

  - by Nicolaj Zefting

  First off, I'm a complete beginner. This might be a stupid question, but here it goes: I'm currently working on an App than contains Latin texts that the users can view and read. I'm using Xcode 4 with the storybord function. Theway the app is built: user selects author - then the book - then app shows the text. I am kind of confused because i need to have various text files, depending on the users choice.

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• iPhone / Android: what protocol stacks do apps use for connecting to centralised services?

  - by Richard

  Hi All, Aplogies for the ignorant question, I have no experience with app development on any mobile platform. Basically what I want to know is what communication protocols do apps typically use for accessing/querying centralised services? E.g if I port a webapp/service to iPhone/Andriod, typically how would I access/query this web service in my app? E.g is it over HTTP, or are there other protocols? Also, presumably the GUI of an app is constructed with Apple/Andriod GUI libraries (in java? cocoa?). Can an app GUI be defined with HTML/javascript like a webpage? Sorry again for the pure noob questions. Thanks

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• How to set Main Inerface in xCode programatically

  - by Tom Tallak Solbu

  I am using Apples MultipleDetailViews http://developer.apple.com/library/ios/#samplecode/MultipleDetailViews/Introduction/Intro.html for template as a source for my iPad app. The template is using a splitviewController in the interface builder (MainWindow). In the iPhone/iPad Deployment info of the target, MainWindow is set as the "Main Interface". I want my app to also run on iPhone. This means I need to load a different xib when the app is run on an iPhone. I must then remove "MainWindow" from "Main Interface" because the app will crash when I load on an iPhone due to the splitViewController. The AppDeleagte of the template look like this: - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.rootViewController = self.splitViewController; [self.window makeKeyAndVisible]; } If I remove "Main Window" from "Main Interface", how do I then need to change the APpDelegate, or maybe I need to change the MainWindow.xib to also work for iPhone?

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• What are the different uses of component and module in flex application ?

  - by roconmachine

  purpose of component and module of flex app

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• Fastest reliable way for Clojure (Java) and Ruby apps to communicate

  - by jkndrkn

  Hi There, We have cloud-hosted (RackSpace cloud) Ruby and Java apps that will interact as follows: Ruby app sends a request to Java app. Request consists of map structure containing strings, integers, other maps, and lists (analogous to JSON). Java app analyzes data and sends reply to Ruby App. We are interested in evaluating both messaging formats (JSON, Buffer Protocols, Thrift, etc.) as well as message transmission channels/techniques (sockets, message queues, RPC, REST, SOAP, etc.) Our criteria: Short round-trip time. Low round-trip-time standard deviation. (We understand that garbage collection pauses and network usage spikes can affect this value). High availability. Scalability (we may want to have multiple instances of Ruby and Java app exchanging point-to-point messages in the future). Ease of debugging and profiling. Good documentation and community support. Bonus points for Clojure support. What combination of message format and transmission method would you recommend? Why? I've gathered here some materials we have already collected for review: Comparison of various java serialization options Comparison of Thrift and Protocol Buffers (old) Comparison of various data interchange formats Comparison of Thrift and Protocol Buffers Fallacies of Protocol Buffers RPC features Discussion of RPC in the context of AMQP (Message-Queueing) Comparison of RPC and message-passing in distributed systems (pdf) Criticism of RPC from perspective of message-passing fan Overview of Avro from Ruby programmer perspective

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• about service accounts and unregistered users

  - by user1500824

  I have a web app in php mysql, I want to use one google drive account for my app. Can I use my app's accounts instead of google users for privilages. I read in SDK I can use service account to login without promting user, but I don't know how to share or give permissions files for custom users. In api reference I found this: "The user is not necessarily yet a Google user (e.g. if a file or folder is shared with an email address that does not yet have an associated Google account). Example: 1111459233037698895607". How a custom user in my app should get a token for own privilages.

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• Twitter oauth php problems

  - by Patrick Gates

  I'm writing some backend script for a twitter app and heres how it's going On the app you click a button that sends you to login.php on my server which logs into my database connects to twitter with my consumer key and secret: $to = new TwitterOAuth($consumer_key, $consumer_secret); $tok = $to->getRequestToken(); $request_link = $to->getAuthorizeURL($tok); and then writes the token and secret to the database, sets a session equal to the id in the database of the token and secret and then redirects to the "$request_link" You then go through the process of logging in and such on twitter and it redirects you to callback.php on my server Callback.php consists of logging into the database again, getting the new token and secret, and then writing the new token and secret to the database and then prompts you to go back to the app Then on the app, all I'm trying to do is access the basic credentials$to->get('account/verify_credentials') and it keeps coming back "could not authenticate you" What am I doing wrong?? Thank you for all the help :)

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• Deterministic random number generator with context?

  - by user653133

  I am looking for a seeded random number generator that creates a pool of numbers as a context. It doesn't have to be too good. It is used for a game, but it is important, that each instance of the Game Engine has it's own pool of numbers, so that different game instances or even other parts of the game that use random numbers don't break the deterministic character of the generated numbers. Currently I am using rand() which obviously doesn't have this feature. Are there any c or objective-c generators that are capable of doing what I want? Best regards, Michael

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• MVC: User Message Stack implementations

  - by SDReyes

  How would you implement a user message stack in ASP.Net MVC (you set messages for the user in any place inside your app. and they are shown as hints of your app to the user anywhere inside the app) e.g.:

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• Windows: Does something temporarily grab the com ports on startup?

  - by Tim

  I have a WPF/C# app that is launched as part of the "Startup" group on a Windows Embedded Standard machine. One of the first things the app does (in its static App() method) is create a new SerialPort object for COM1. COM1 is a hardwired serial port, not a USB virtual port or anything like that. My problem is that every so often (maybe 1 out of 12) on startup, I get an exception: System.UnauthorizedAccessException: Access to the port 'COM1' is denied. There are no other applications using this port. Also, when I relaunch the app following this error, it grabs the port just fine. It's as if the com port isn't ready/set up for my app sometimes. I'm clueless on this one! Any insight is appreciated! UPDATE: I added a call to SerialPort.GetPortNames() and printout all available ports before attempting to open the port. In the failure case COM1 is indeed THERE! So, it's not that the port isn't ready. It looks like something in Windows is actually grabbing the port temporarily and blocking me.

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• how to save current state of application

  - by medma

  hi, I am making an iphone application in which after login we will go through some steps and then finally we make a call from within the app. As we know on making call our app quits so plz suggest me how to resume that state on relaunching the app? 1-login 2-some steps 3-list of numbers 4-call Any help will be appreciated. Thanx..

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• Using memcached/APC for session storage?

  - by Industrial

  Hi everybody, I had some thoughts back ago about using memcached for session storage, but came to the conclusion that it wouldn't be sufficient in the event of one or more of the servers in the memcached pool were about to go down. A hybrid version is to save the main database (mySQL) from load caused by reads would be to work out a function that tries to fetch the data from the cache pool, and if that fails gets it from the database. After putting some more thought into it, I started to think about using APC cache for session related data. If our web server would go down, sessions would be lost either way, so storing them in a local APC or a localhost memcached server maybe isn't that bad? What's your experiences?

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• Android Mock Location locks GPS on status bar

  - by Mark Manickaraj

  I created an app that uses mock locations to insert GPS coordinates. After removing the test provider via: mLocationManager.clearTestProviderLocation(mocLocationProvider); mLocationManager.removeTestProvider(mocLocationProvider); mLocationManager.removeUpdates(mLocationListener); When I launch google maps for example after exiting the app the GPS location is found and then never goes away. "Location Set By GPS" always remains on the notification bar even though my app is ended. Any ideas?

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• Context.Items.Add on an XML return type?

  - by Scott Schluer

  So I have the following code contained within an HttpModule in an application I've been asked to support: app.Context.Response.ContentType = "text/xml"; app.Context.Items.Add("IpixRoomId", ipixRoomId); app.Context.Items.Add("IpixId", ipixId); app.Context.Response.Cache.SetCacheability(HttpCacheability.NoCache); app.Context.RewritePath(rewriteUrl, true); What's the purpose of adding data to Context.Items when the content type is XML? EDIT: For clarification, I'm calling up this URL: http://website.com/virtualtour/1971/6284/panorama2flash.swf I assume the SWF file (I know very little about Flash) makes another call to http://website.com/virtualtour/config.xml. The code I pasted above only executes on calls to config.xml. So since it's only the SWF file and config.xml being requested from the server, I'm a little confused. Can the .SWF file have access to HttpContext.Current.Items? Other than the HttpModule, there is no .NET involved in the code, it's a straight request to the SWF file which triggers a call to config.xml but it seems that those Context.Items contain the data needed to make the SWF file display the right virtual tour. I'm just missing where that link happens. It can't happen in the XML, so maybe in Flash?

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• [C#] Boot problem

  - by Cecco

  Hi guys, I'm running on Windows 7 and I've a problem with my app at boot. Within my app I use some threads and external dll (sqlite3.dll, etc...). I've included these lines at first of my start.exe file: RegistryKey rkApp = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true); String p = System.Environment.CommandLine.Replace("vshost.",""); String pp = p.Remove(p.Length-1); rkApp.SetValue("MyAPP", pp); If I start my app manually from exe file (or with VisualStudio) works correctly. If I start my app on reboot, MyApp crashes after few seconds. Why I've this problem?

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• Reading Connection String from a class Library

  - by devnet247

  Hi all I have a .net class library 2.0 with an app.config with a connectionString section. I have 01 Method that this class library exposes " string GetConnectionString(string name) However even though the app.config in this class library has 3 connstrings it does not read this config.exe.How can I make it read the app.config that resides withing this dll? Again, Usually you will have a web or windows app with a config and it will all work. Mine is a special case I need to read the connectionstring within this class library. How can I do it? thanks a lot

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• long startup time...Need help

  - by Jeff

  My app is all done and working great. So now I ran it on a old iPhone and the app takes 17.3 seconds to start!?!? i spent a lot of time looking into it and i found that the reason it is taking so long to load is i have a lot of views and each view has a png background image. All my views and made in IB and in my code: #import "MyTestAppDelegate.h" #import "MyTestViewController.h" @implementation MyTestAppDelegate @synthesize window; @synthesize viewController; - (void)applicationDidFinishLaunching:(UIApplication *)application { // Override point for customization after app launch [window addSubview:viewController.view]; [window makeKeyAndVisible]; } - (void)dealloc { [viewController release]; [window release]; [super dealloc]; } @end At the end of the code where is says: [window addSubview:viewController.view]; the app seems to be loading all the views in the nib at the same time. All the png's from all the views are about 12mb. There is no need for the app to load all the views at the same time during startup. Is there a way i can only load the first "home" view at startup? (All the views are part of the same nib.)

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• Is there a way to flush html to the wire in Sinatra

  - by thismatt

  I have a Sinatra app with a long running process (a web scraper). I'd like the app flush the results of the crawler's progress as the crawler is running instead of at the end. I've considered forking the request and doing something fancy with ajax but this is a really basic one-pager app that really just needs to output a log to a browser as it's happening. Any suggestions?

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• android bluetooth

  - by yoavstr

  can someone explain to me the concept behind using bluetooth my project in my studies is to make an android app using bluetooth, SQLLIGHT and google app the app itself is a very easy one but i just dont get the tools i need to use : how does the bluetooth works? is there a simple example ? the concept behind android GUI (i allready nade one but i think i am not fully understood his power)? note : i am using v 2.1

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• How To Send thousands of javaMails simultaneously ?

  - by ylazez

  greetings all i am building a web app(smth like a forums) that will need to send thousands of emails simultaneously i think that it would be such a big load on the app to handle sending the emails, so i want to use another service or framework to handle sending the emails in asynchronous way so that there will be no load on the app, maybe JMS , i don't know, please suggest me a good solution.

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• InternetCheckConnection in VB6 returning false

  - by user191582

  Hi all, Not a VB6 expert... Trying to come up with a VB6 test app that calls InternetCheckConnection. In my test app, InternetCheckConnection always returns false regardless of the URL I use. I copied and pasted this code from a larger spaghetti-code app, but in the spaghetti-code, InternetCheckConnection seems to work fine, returns true. Is there some other function I have to call first in order for InternetCheckConnection to work?

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• what causes a bad token on iPhone- NSLog(@"token:%@",[devToken description]); crashes

  - by Grant M

  I am getting a bad token passed to me in - (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)devToken this code crashes on my iPhone but not my clients. - (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)devToken { NSLog(@"token:%@",[devToken description]); } I think something is wrong with my stored notifications settings on my iPhone but I can't find a way to delete them. deleting the app does not seem to do it.

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• synchronously load html content in UIWebView

  - by mbg1987

  im using a UIWebView to show html content in my app, the app contains two arrows to navigate between topics just like a RSS reader app, but when the user hits up or down arrow, the next topic doesn't show up until the data come back and the user still able to interact with the UI which is a bit confusing, My question: how to block the UI when user moves to the next/back topic ? in other words how to make loadHTMLString:baseURL: works as a synchronous calling ? thanks !

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• How i can i use the value of a variable from one class in another in objective c?

  - by user337174

  Hi i am fairly new to objective c and have been doing some iphone programming. Is it possible to look up the value of a variable in a different class? Basically what i am doing is running a function that exists in my app delegate from a view controller, but the app delegate needs to use a variable stored in the view controller from which the app delegate function was called. Make sense??? Any help would be grateful. James

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