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• ADT will not allow creation of Android Activity

  - by NewShelbyWoo

  I installed the ADT bundle from http://developer.android.com/sdk/index.html yesterday, and I was following a basic Hello World tutorial. I created a new Android Application Project with a Blank Activity named MainActivity. The resulting project has an empty src folder and empty res\layout folder. There is a R.java file in the gen folder but it has no reference to MainActivity. This is what the SDK manager says I have installed Android SDK Tools v 22.6 Android SDK Platform-tools v 19.0.1 Android SDK Build-tools v 19 SDK Platform v 3 ARM EABI v7a System Image v 2 Android Support Library v 19.0.1 Google USB Driver v 9 I also tried manually creating an activity by right clicking the src folder and going to Android Activity, but when I hit Finish on the creation wizard, nothing happens. Does anyone have any clues as to what's going on? Did I miss a key component to install or something?

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• iPhone Full and Lite version without StoreKit

  - by beryllium

  Hi there! I have a Full and Lite applications that were built from the same code. Lite version has a button Upgrade. What code I should place in button's handler for checking users payment and update application to Full version?? I know StoreKit framework that allow to unblock some features, but I need just 2 different applications. Maybe there is tutorial on this topic, but I found nothing. If anyone has reference link pls provide None of those applications has not yet uploaded to Appstore. Thanks.

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• Why can't I store a float value - it's always zero!

  - by just_another_coder

  I have a view controller that is created by the app delegate - it's the first one shown in the app. In its interface I declare float lengthOfTime; I also set it as a property: @property (nonatomic) float lengthOfTime; And in it's implemetation: @synthesize lengthOfTime; In the class viewDidLoad method, I set the value: self.lengthOfTime = 3.0f; However, after this, the value is always zero. No errors, no compile warnings, nothing. Just zero. The class is instantiated, it is showing in the view, so I'm pretty sure it's not a nil reference. I've searched all over Google and can't figure it out. What's going on?!? :(

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• Losing NSManaged Objects in my Application

  - by Wayfarer

  I've been doing quite a bit of work on a fun little iPhone app. At one point, I get a bunch of player objects from my Persistant store, and then display them on the screen. I also have the options of adding new player objects (their just custom UIButtons) and removing selected players. However, I believe I'm running into some memory management issues, in that somehow the app is not saving which "players" are being displayed. Example: I have 4 players shown, I select them all and then delete them all. They all disappear. But if I exit and then reopen the application, they all are there again. As though they had never left. So somewhere in my code, they are not "really" getting removed. MagicApp201AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; context = [appDelegate managedObjectContext]; NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSEntityDescription *desc = [NSEntityDescription entityForName:@"Player" inManagedObjectContext:context]; [request setEntity:desc]; NSError *error; NSMutableArray *objects = [[[context executeFetchRequest:request error:&error] mutableCopy] autorelease]; if (objects == nil) { NSLog(@"Shit man, there was an error taking out the single player object when the view did load. ", error); } int j = 0; while (j < [objects count]) { if ([[[objects objectAtIndex:j] valueForKey:@"currentMultiPlayer"] boolValue] == NO) { [objects removeObjectAtIndex:j]; j--; } else { j++; } } [self setPlayers:objects]; //This is a must, it NEEDS to work Objects are all the players playing So in this snippit (in the viewdidLoad method), I grab the players out of the persistant store, and then remove the objects I don't want (those whose boolValue is NO), and the rest are kept. This works, I'm pretty sure. I think the issue is where I remove the players. Here is that code: NSLog(@"Remove players"); /** For each selected player: Unselect them (remove them from SelectedPlayers) Remove the button from the view Remove the button object from the array Remove the player from Players */ NSLog(@"Debugging Removal: %d", [selectedPlayers count]); for (int i=0; i < [selectedPlayers count]; i++) { NSManagedObject *rPlayer = [selectedPlayers objectAtIndex:i]; [rPlayer setValue:[NSNumber numberWithBool:NO] forKey:@"currentMultiPlayer"]; int index = [players indexOfObjectIdenticalTo:rPlayer]; //this is the index we need for (int j = (index + 1); j < [players count]; j++) { UIButton *tempButton = [playerButtons objectAtIndex:j]; tempButton.tag--; } NSError *error; if ([context hasChanges] && ![context save:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } UIButton *aButton = [playerButtons objectAtIndex:index]; [players removeObjectAtIndex:index]; [aButton removeFromSuperview]; [playerButtons removeObjectAtIndex:index]; } [selectedPlayers removeAllObjects]; NSError *error; if ([context hasChanges] && ![context save:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } NSLog(@"About to refresh YES"); [self refreshAllPlayers:YES]; The big part in the second code snippet is I set them to NO for currentMultiPlayer. NO NO NO NO NO, they should NOT come back when the view does load, NEVER ever ever. Not until I say so. No other relevant part of the code sets that to YES. Which makes me think... perhaps they aren't being saved. Perhaps that doesn't save, perhaps those objects aren't being managed anymore, and so they don't get saved in. Is there a lifetime (metaphorically) of NSManaged object? The Players array is the same I set in the "viewDidLoad" method, and SelectedPlayers holds players that are selected, references to NSManagedObjects. Does it have something to do with Removing them from the array? I'm so confused, some insight would be greatly appreciated!!

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• Condensing multiple else if statements, referencing them from a table?

  - by Haskella

  Hi I'm about to type some 500 else if statements into my code (PHP) which have the exact same coding each: if (color=White); rgb = 255-255-255; print rgb; else if (color=Black); rgb = 0-0-0; print rgb; else if (color=Red); rgb = 255-0-0; print rgb; else if (color=Blue); rgb = 0-0-255; print rgb; [the list keeps going] I also (luckily) have a table that displays the color in the first column and rgb value in the next column for 500 of them... how do I use this to save time typing all those else if statements? Some how I have to reference the table file (made in excel, I'm guessing I'll have to save it as .csv?)

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• Checking online users with Facebook Javascript SDK

  - by Roman

  Hi, I'm trying to build some kind of a social game in facebook, where I need that every user that has approved my APP is able to receive notifications from me. When the user approves my App, I save his UID in the DB for future reference. At some later time, I want to make it possible for other users find partners for a game - so I need a way to pick randomly some user from my DB and check if he's online. Then, send him a message and propose to play with the current player. So 2 questions: How can I check if some user is online, using Javascript SDK? It seems that in the new Graph API I can't get the users' online status. How can I then send him a message and propose to play the game? When he approves to play - he is being forwarded to the game page. Many thanks in advance, Roman

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• accessing required modules from other modules

  - by john smith

  I have a bare-bone express application, exactly the one that is created with the express command. I have installed socket.io and attached it to my server, like this: var app = express(), server = http.createServer(app), io = io.listen(server); server.listen(8000); Now, I also have the routes files, which is called like this: app.get('/', routes.index); Inside this module I have the following function: exports.index = function(req, res){ socket.emit('news', { message: "foo" }); }; This obviously leads to a 500 reference error, because the routes file is an exportable module, and obviously has no idea what the socket is, as it is located in the app.js file. Is there a way I can access this socket object from this, or any other file? Please note that it is attached to the express generated app. extra: what about getting/setting session data? Thanks in advance.

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• How do you access config outside of a request in CherryPy?

  - by OrganicPanda

  I've got a webapp running on CherryPy that needs to access the CherryPy config files before a user creates a request. The docs say to use: host = cherrypy.request.app.config['database']['host'] But that won't work outside of a user request. You can also use the application object when you start the app like so: ... application = cherrypy.tree.mount(root, '/', app_conf) host = application.config['database']['host'] ... But I can see no way of accessing 'application' from other classes outside of a user request. I ask because our app looks at several databases and we set them up when the app starts rather than on user request. I have a feeling this would be useful in other places too; so is there any way to store a reference to 'application' somewhere or access it through the CherryPy API?

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• PropertyInfo SetValue and nulls

  - by Nelson

  If I have something like: object value = null; Foo foo = new Foo(); PropertyInfo property = Foo.GetProperties().Single(p => p.Name == "IntProperty"); property.SetValue(foo, value, null); Then foo.IntProperty gets set to 0, even though value = null. It appears it's doing somemething like IntProperty = default(typeof(int)). I would like to throw an InvalidCastException if IntProperty is not a "nullable" type (Nullable< or reference). I'm using Reflection, so I don't know the type ahead of time. How would I go about doing this?

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• Rails, search item in different model?

  - by Danny McClelland

  Hi Everyone, I have a kase model which I am using a simple search form in. The problem I am having is some kases are linked to companies through a company model, and people through a people model. At the moment my search (in Kase model) looks like this: # SEARCH FACILITY def self.search(search) search_condition = "%" + search + "%" find(:all, :conditions => ['jobno LIKE ? OR casesubject LIKE ? OR transport LIKE ? OR goods LIKE ? OR comments LIKE ? OR invoicenumber LIKE ? OR netamount LIKE ? OR clientref LIKE ? OR kase_status LIKE ? OR lyingatlocationaddresscity LIKE ?', search_condition, search_condition, search_condition, search_condition, search_condition, search_condition, search_condition, search_condition, search_condition, search_condition]) end What I am trying to work out, is what condition can I add to allow a search by Company or Person to show the cases they are linked to. @kase.company.companyname and company.companyname don't work :( Is this possible? Thanks, Danny

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• Interacting with java code from C#

  - by Qua

  We've written a Java program which we are looking to use and interact with from C#. What are our options? Optimally it would be possible to compile the Java application as a library (.DLL) that we could reference from C# perhaps using P/Invoke. This, however, doesn't appear to be an option according to the first few searches online. We opt to be able to use ASP.NET to built a search engine powered by the Java code, so if this opens up for any other options please let us know.

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• How to convert a MSSQL database (including procedures, functions and triggers) to a firebird databas

  - by user193655

  I am considering migrating to Firebird. To have a "quick start" approach I downloaded the trial of a conversion tool (DBConvert) and tried it. I just picked up a random tool, this tool doesn't convert procedures, functions and triggers (I don't think it is a limit of the trial since there is not an explicit reference to sp, sf and triggers in the link above). Anyway by trying that tool I had the message: "The DB cannot be converted succesfully because some FK names are too long." This is because in some tables I have FK whose description is 32 chars. Is this a real firebird limit or it is possible to overcome it somehow (of course renaming the FK is an extreme option because it is extra work)? Anyway how to convert a MS SQL DB fully to FIREBIRD? Is there a valid tool? Did someone succed in a conversion of non trivial databases?

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• Tutorial/resource for implementing VM

  - by zaharpopov

  Hello, I want self-education purpose implement a simple virtual machine for a dynamic language, prefer in C language. Something like the Lua VM, or Parrot, or Python VM, but simpler. Are there any good resources/tutorials on achieving this, apart from looking at code and design documentations of the existing VMs? Thanks in advance for your answers and ideas Edit: why close vote? I don't understand - is this not programming. Please comment if there is specific problem with my question.

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• how to Set already running activity, when user clicks on app icon on home screen

  - by Praveenb

  I have Two activities One splash screen, Player screen. When user clicks on my app icon first splash screen is displayed and then player screen When player activity is running, if user returns to the home screen and then again clicks on app icon, the application is starting from the splash screen again. can any one please help me out how to do any one of below 1) I need to close current running activity and reload application. or 2) I need to resume to the player screen directly. Please give me an example or reference to follow, Im beginner in android programing Thanks In advance

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• C#: Problem trying to resolve a class when two namespaces are simmilar.

  - by rally25rs

  I'm running into an issue where I can't make a reference to a class in a different namespace. I have 2 classes: namespace Foo { public class Class1 { ... } } namespace My.App.Foo { public class Class2 { public void SomeMethod() { var x = new Foo.Class1; // compile error! } } } The compile error is: The type or namespace name 'Class1' does not exist in the namespace 'My.App.Foo' In this situation, I can't seem to get Visual Studio to recognize that "Foo.Class1" refers to the first class. If I mouse-over "Foo", it shows that its trying to resolve that to "My.App.Foo.Class1" If I put the line: using Foo; at the top of the .cs file that contains Class2, then it also resolves that to "My.App.Foo". Is there some trick to referencing the right "Foo" namespace without just renaming the namespaces so they don't conflict? Both of these namespaces are in the same assembly.

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• How can I isolate the form controls in a ASP Web User Control from the rest of the page's form contr

  - by Justin808

  I have a Web User Control I created for authentication. The web user control is inside the box below. Clicking any button (1 or 2) below works correct as it goes to the correct c# button click event in the code behind file. If I press enter on fields a or b it goes to the correct callback (button1's) if I press enter on field c it still goes to button1's callback, not button2's How can I give my web user control a nice self contained for and view state etc, so it wont mess with the remainder of the page's form? +--------------+ | User: __a___ | | Pass: __b___ | | [button1]| +--------------+ Prompt:______c______ [button2]

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• Best practice for string substition with gettext using Python

  - by Malcolm

  Looking for best practice advice on what string substitution technique to use when using gettext(). Or do all techniques apply equally? I can think of at least 3 string techniques: Classic "%" based formatting: "My name is %(name)s" % locals() .format() based formatting: "My name is {name}".format( locals() ) string.Template.safe_substitute() import string template = string.Template( "My name is ${name}" ) template.safe_substitute( locals() ) The advantage of the string.Template technique is that a translated string with with an incorrectly spelled variable reference can still yield a usable string value while the other techniques unconditionally raise an exception. The downside of the string.Template technique appears to be the inability for one to customize how a variable is formatted (padding, justification, width, etc).

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• Help with Ruby Date Compare

  - by Kevin

  Yes, I've read and done teh Google many times but I still can't get this working... maybe I'm an idiot :) I have a system using tickets. Start date is "created_at" in the timestamps. Each ticket closes 7 days after "created_at". In the model, I'm using: def closes (self.created_at + 7.days) end I'm trying to create another method that will take "closes" and return it as how many days, hours, minutes, and seconds are left before the ticket closes. Anyone want to help and/or admonish my skills? ;)

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• set different volumes inside app

  - by blacksheep

  i'd lioke to set the volume inside the touchesBegan action on half the volume of the IBAction. (void) awakeFromNib { [super awakeFromNib]; engine = [[Finch alloc] init]; E = [[RevolverSound alloc] initWithFile:PATH(@"E.wav")rounds:9]; } -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint location = [touch locationInView:self.view]; if(CGRectContainsPoint(Edrop.frame,location)){ [E play]; } } (IBAction)bass:(id)sender { if(CGRectIntersectsRect(finga.frame,e.frame)){ if(finga.center.y <= e.center.y) [E play]; } } thanx, blacksheep

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• Scriptom (groovy) leaves Excel process running - am I doing something wrong?

  - by Alex Stoddard

  I am using the Scriptom extension to Groovy 1.7.0 to automate some processing using Excel 2007 under Windows XP. This always seems to leave an Excel process running despite my calling quit on the excel activeX object. (There is a passing reference to this phenomenon in the Scriptom example documentation too.) Code looks like: import org.codehaus.groovy.scriptom.ActiveXObject; def xls = new ActiveXObject("Excel.Application") xls.Visible = true // do xls stuff xls.Quit() The visible excel window does disappear but an EXCEL process is left in the task manager (and more processes pile up with each run of the script). There are no error message or exceptions. Can anyone explain why the Excel process is left behind and is there any way to prevent it from happening?

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• TabBar implementation issue in iphone

  - by iPhoneDev

  Hi, My project is navigation based template and it was running fine until I made changes in some child view. I need to add 4 Tab in some child view. So what I did is create a TabBarController programmatically on ViewDidLoad as: // (void)viewDidLoad { [super viewDidLoad]; helpView = [[HelpView alloc] initWithNibName:@"HelpView" bundle:nil]; settingView = [[SettingView alloc] initWithNibName:@"SettingView" bundle:nil]; tabBarController = [[UITabBarController alloc] init]; tabBarController.viewControllers = [NSArray arrayWithObjects:helpView,settingView,nil]; [self.view addSubview:[tabBarController view]]; } I am able to add two view in tab bar but not Tab Title. Please let me know what I am missing to display Title on tab button. ( Is a NavigationBased project) Thanks

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• WCF: generic list serialized to array

  - by OpticalDelusion

  So I am working with WCF and my services return types that contain generic lists. WCF is currently converting these to arrays over the wire. Is there a way I configure WCF to convert them back to lists afterwards? I know there is a way by clicking advanced when you add a service reference but I am looking for a solution in configuration files or something similar. [DataContract(IsReference = true)] public class SampleObject { [DataMember] public long ID { get; private set; } [DataMember] public ICollection<AnotherObject> Objects { get; set; } } It is very odd, also, because one service returns it as a list and the other as an array and I am pretty sure they are configured identically.

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• Abstract classes in shared library

  - by JTom

  Hi, I have an ordinary abstract class that has couple of pure virtual methods. The class itself is a part of the shared library. The compilation of the shared library itself is OK. But when the library is linked to another program that has another class deriving from the abstract one in the shared library and defining the pure virtual methods, I get the following linker error: I compile like this..: g++ -I../path/to/the/library main.cpp derived.cpp -L../path/to/the/library -lsomename -o shared ...and the linker error is: libsomename.so: undefined reference to `AbstractClass::method()' It's like the abstract class cannot access its pure virtual methods but I do not try to make any instance of the abstract class anywhere in the library. What could be the problem?

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• Dang Error #1009 !

  - by boz

  I'm building a simple flash site for a friend who has a spa. I keep getting this error: Error #1009: Cannot access a property or method of a null object reference. at spa7_fla::MainTimeline/frame1() through the process of commenting out code, i've narrowed down to my link section: vox_link.addEventListener(MouseEvent.CLICK,gotoVox); function gotoVox(evtObj:Event):void { var voxSite:URLRequest=new URLRequest("http://www.voxmundiproject.com"); navigateToURL(voxSite, "_blank"); } With this section commented out, i don't get the 1009 error. When the code is active, I get the error. My code syntax is correct so I'm stumped. Does someone have an idea what my be wrong? Thanks!

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• How do I use global resources in WPF?

  - by Banford

  I have a WPF application which I would like to use some static resources in. I have created a Resource Library XAML file which contains a resource. I have also added a string into the Resources of the project through the Properties panel. I assumed I could just use these resources with the binding expression: {StaticResource ResourceName} But visual studio is telling me the resources are not found. Do I have to include some form of reference in my XAML? The examples I have seen only include resources locally such as: <Window.Resources>, <Page.Resources> etc I don't want to include the resources locally because I want them to be available to multiple parts of the application.

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