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  • jQuery background-position animation

    - by depi
    Hi guys, I've created an image which is basically a CSS sprite of 3 images together. It's size is 278x123 so they are basically 3 images of 278x41. What I am trying to do is to make an animation of that by changing the background position. I've tried many things, one of my not very working solution is the following: var $slogan = $('#header h2 span'); $slogan.css({backgroundPosition: '0px 0px'}); function slogan_animation() { if ($slogan.css('background-position') == '0px 0px') { $slogan.fadeIn('slow').css('background-position', '0px -41px').fadeOut('slow'); } else if ($slogan.css('background-position') == '0px -41px') { $slogan.fadeIn('slow').css('background-position', '0px -82px').fadeOut('slow'); } else if ($slogan.css('background-position') == '0px -82px') { $slogan.fadeIn('slow').css('background-position', '0px 0px').fadeOut('slow'); } } setInterval(slogan_animation, 2000); Any ideas how could I do that? Basically I just need to: - set my background position to "0px 0px", then move it to "0px -41px", then "0px -82px" and then loop it again from "0px 0px". It would be also great to have fadeIn() effect between those. Any ideas? Thank you.

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  • jQuery .attr() crashing Internet Explorer

    - by Sunyatasattva
    Hello everyone, This is my first time posting a question here, as I usually try to find solutions myself. This one, though, being an IE issue, just drives me crazy. I use jQuery cycle plug-in on a website I made and, to populate a caption div, I use a little function that is called after the image is loaded, which uses the "alt" attribute of the image. This seems to exasperate Internet Explorer, which, doesn't have the time to fulfill this apparently so-complicated task, and, as the slideshow cycles, it enters in an infinite loop and eventually crashes – the newer the version, the worse the crash: the older IEs just display an error message saying “The webpage cannot be displayed”, while the newer (7 and 8) completely crash the system. I have no idea on how to solve or work around this. Here is the problematic code. function changeCaption() { var caption = $("img", this).attr("alt"); $('#caption').fadeIn("slow").html(caption); } Thanks in advance for any pointer: I am amazed as how something so simple and globally recognized (didn't encounter any other browser who had problem with this), can cause a problem so big. I also read somewhere that being able to crash a browser remotely is a serious issue :) Lucio

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  • Java JSP/Servlet: controller servlet throwing the famous stack overflow

    - by NoozNooz42
    I've read several docs and I don't get it: I know I'm doing something wrong but I don't understand what. I've got a website that is entirely dynamically generated: there's hardly any static content at all. So, trying to understand JSP/Servlet, I've written my own "front controller" intercepting every single query, it looks like this: <servlet-mapping> <servlet-name>defaultservlet</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> Basically I want any user request, like: example.org example.org/bar example.org/foo.html to all go through a default servlet which I've written. The servlet then examines the URI and find to which .jsp the request must be dispatched, and then does, after having set all the attributes correctly, a: RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/WEB-INF/jsp/index.jsp"); dispatcher.forward(req, resp); When I'm using a url-pattern (in web.xml) like, say, *.html, everything works fine. But when I change it to /* (to really intercept everything), I enter an endless loop and it ends up with a... StackOverflow :) When the request is dispatched, is the URI ".../WEB-INF/jsp/index.jsp" itself matched by the web.xml filter /* that I set? How should I do if I want to intercept everything using a /* url-pattern and yet be able to dispatch/forward/? I'm not asking about specs/Javadocs here: I'm really confused about the bigger picture and I'd need some explanation as to what could be going on. Am I not supposed to intercept really everything? If I can intercept everything, what should I be aware of regarding forwarding/dispatching?

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  • AS3 - Can't access properties or methods of a MC child that has been added in script

    - by Chris
    Hi All - I am still a bit of a beginner at AS3, so bear with me, please. I have created a loop to instantiate tiles on a board. In the following example, "Gametiles" is an array containing objects of class "Tile" which is a class that extends MovieClip. "Game" is a MC that I added to the stage in the flash developing environment. for(var i:uint=0;i < Gametiles.length;i++){ var pulledTile = Gametiles[i]; var tilename:String = "I_Tile_" + pulledTile.grid_y + "_" + pulledTile.grid_x; var createdTile = new InteractiveTile(); pulledTile.addAnims(createdTile); Game.addChildAt(pulledTile, 0); Game.getChildAt(0).name = tilename; } The above code works - but with a tricky problem. If I did something like the following: trace(Game.I_Tile_1_3.x); I get "TypeError: Error #1010: A term is undefined and has no properties." However, I am able to access theses children in the following manner: var testing = Game.getChildByName("I_Tile_1_3") trace(testing.x); This method is a bit cumbersome though. I really don't want to have to create a var and call getChildByName every time I want to interact with these properties or methods. How can I set up these children so that I can access them directly without the extra steps?

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  • Python: query a class's parent-class after multiple derivations ("super()" does not work)

    - by henry
    Hi, I have built a class-system that uses multiple derivations of a baseclass (object-class1-class2-class3): class class1(object): def __init__(self): print "class1.__init__()" object.__init__(self) class class2(class1): def __init__(self): print "class2.__init__()" class1.__init__(self) class class3(class2): def __init__(self): print "class3.__init__()" class2.__init__(self) x = class3() It works as expected and prints: class3.__init__() class2.__init__() class1.__init__() Now I would like to replace the 3 lines object.__init__(self) ... class1.__init__(self) ... class2.__init__(self) with something like this: currentParentClass().__init__() ... currentParentClass().__init__() ... currentParentClass().__init__() So basically, i want to create a class-system where i don't have to type "classXYZ.doSomething()". As mentioned above, I want to get the "current class's parent-class". Replacing the three lines with: super(type(self), self).__init__() does NOT work (it always returns the parent-class of the current instance - class2) and will result in an endless loop printing: class3.__init__() class2.__init__() class2.__init__() class2.__init__() class2.__init__() ... So is there a function that can give me the current class's parent-class? Thank you for your help! Henry -------------------- Edit: @Lennart ok maybe i got you wrong but at the moment i think i didn't describe the problem clearly enough.So this example might explain it better: lets create another child-class class class4(class3): pass now what happens if we derive an instance from class4? y = class4() i think it clearly executes: super(class3, self).__init__() which we can translate to this: class2.__init__(y) this is definitly not the goal(that would be class3.__init__(y)) Now making lots of parent-class-function-calls - i do not want to re-implement all of my functions with different base-class-names in my super()-calls.

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  • Core Data - How to check if a managed object's properties have been deallocated?

    - by georryan
    I've created a program that uses core data and it works beautifully. I've since attempted to move all my core data methods calls and fetch routines into a class that is self contained. My main program then instantiates that class and makes some basic method calls into that class, and the class then does all the core data stuff behind the scenes. What I'm running into, is that sometimes I'll find that when I grab a managed object from the context, I'll have a valid object, but its properties have been deallocated, and I'll cause a crash. I've played with the zombies and looked for memory leaks, and what I have gathered is it seems that the run loop is probably responsible for deallocating the memory, but I'm not sure. Is there a way to determine if that memory has been deallocated and force the core data to get it back if I need to access it? My managedObjectContext never gets deallocated, and the fetchedResultsController never does, either. I thought maybe I needed to use the [managedObjectContext refreshObject:mergeData:] method, or the [managedObjectContext setRetainsRegisteredObjects:] method. Although, I'm under the impression that last one may not be the best bet since it will be more memory intensive (from what I understand). These errors only popped up when I moved the core data calls into another class file, and they are random when they show up. Any insight would be appreciated. -Ryan

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  • paypal verify payment

    - by yozhik
    I am testing PayPal payments through Sandbox. So what do I do: Make a payment from my Android device, using SDK AppID: "APP-80W284485P519543T". Receive RESULT_OK in applicationResult and receive response on server side through IPN service. Now I am taking all responce from IPN and send it to paypal verification sandbox server to verify payment. It cat return (VERIFIED or INVALID). But the problem is that it is return INVALID. So whats can be the problem? What I am doing wrong? Thanks. This is what I send to verify: https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_notify-validate&payment_request_date=Mon+Mar+26+02%3A37%3A10+PDT+2012&fees_payer=EACHRECEIVER&transaction[0].is_primary_receiver=false&memo=Buy+1500+coins&transaction_type=Adaptive+Payment+PAY&verify_sign=AWimjEpfvS2eR6IgBwHtiwM0rMDUA.b2twU2ADjkAY-kg5szeluxcqKb&log_default_shipping_address_in_transaction=false&pay_key=AP-2YR77828AV574621G&transaction[0].amount=USD+1.99&reverse_all_parallel_payments_on_error=true&ipn_notification_url=http%3A%2F%2Fdev-vs.upiter.com%2Fvspayment%2Fproviders%2Fvs%2Ffb%2Fpaypalcallback&action_type=CREATE&notify_version=UNVERSIONED&transaction[0].status_for_sender_txn=Pending&test_ipn=1&cancel_url=https%3A%2F%2Fwww.paypal.com&transaction[0].pending_reason=UNILATERAL&status=COMPLETED&charset=windows-1252&transaction[0].paymentType=GOODS&request_body=&request_url=http%3A%2F%2Fdev-vs-mobile.stagika.com%2Fvspayment%2Fproviders%2Fvs%2Ffb%2Fpaypalcallback&return_url=https%3A%2F%2Fwww.paypal.com&transaction[0].receiver=a.merchant1.kv%40gmail.com&request_method=POST&transaction[0].id_for_sender_txn=0X355330VH030952T&sender.useCredentials=true

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  • Linear feedback shift register?

    - by Mattia Gobbi
    Lately I bumped repeatedly into the concept of LFSR, that I find quite interesting because of its links with different fields and also fascinating in itself. It took me some effort to understand, the final help was this really good page, much better than the (at first) cryptic wikipedia entry. So I wanted to write some small code for a program that worked like a LFSR. To be more precise, that somehow showed how a LFSR works. Here's the cleanest thing I could come up with after some lenghtier attempts (Python): def lfsr(seed, taps): sr, xor = seed, 0 while 1: for t in taps: xor += int(sr[t-1]) if xor%2 == 0.0: xor = 0 else: xor = 1 print xor sr, xor = str(xor) + sr[:-1], 0 print sr if sr == seed: break lfsr('11001001', (8,7,6,1)) #example I named "xor" the output of the XOR function, not very correct. However, this is just meant to show how it circles through its possible states, in fact you noticed the register is represented by a string. Not much logical coherence. This can be easily turned into a nice toy you can watch for hours (at least I could :-) def lfsr(seed, taps): import time sr, xor = seed, 0 while 1: for t in taps: xor += int(sr[t-1]) if xor%2 == 0.0: xor = 0 else: xor = 1 print xor print time.sleep(0.75) sr, xor = str(xor) + sr[:-1], 0 print sr print time.sleep(0.75) Then it struck me, what use is this in writing software? I heard it can generate random numbers; is it true? how? So, it would be nice if someone could: explain how to use such a device in software development come up with some code, to support the point above or just like mine to show different ways to do it, in any language Also, as theres not much didactic stuff around about this piece of logic and digital circuitry, it would be nice if this could be a place for noobies (like me) to get a better understanding of this thing, or better, to understand what it is and how it can be useful when writing software. Should have made it a community wiki? That said, if someone feels like golfing... you're welcome.

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  • here is my code in Jquery and Asp.net Unable to get a correct ANS as I am getting from jquery?

    - by ricky roy
    unable to get the correct Ans as i am getting from the Jquery I am using jquery.countdown.js here is my code [WebMethod] public static String GetTime() { DateTime dt = new DateTime(); dt = Convert.ToDateTime("April 9, 2010 22:38:10"); return dt.ToString("dddd, dd MMMM yyyy HH:mm:ss"); } html file <script type="text/javascript" src="Scripts/jquery-1.3.2.js"></script> <script type="text/javascript" src="Scripts/jquery.countdown.js"></script> <script type="text/javascript"> $(function() { var shortly = new Date('April 9, 2010 22:38:10'); var newTime = new Date('April 9, 2010 22:38:10'); //for loop divid /// $('#defaultCountdown').countdown({ until: shortly, onExpiry: liftOff, onTick: watchCountdown, serverSync: serverTime }); $('#div1').countdown({ until: newTime }); }); function serverTime() { var time = null; $.ajax({ type: "POST", //Page Name (in which the method should be called) and method name url: "Default.aspx/GetTime", // If you want to pass parameter or data to server side function you can try line contentType: "application/json; charset=utf-8", dataType: "json", data: "{}", async: false, //else If you don't want to pass any value to server side function leave the data to blank line below //data: "{}", success: function(msg) { //Got the response from server and render to the client time = new Date(msg.d); alert(time); }, error: function(msg) { time = new Date(); alert('1'); } }); return time; } function watchCountdown() { } function liftOff() { } </script>

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  • Why doesen't it work to write this NSMutableArray to a plist?

    - by Emil
    edited. Hey, I am trying to write an NSMutableArray to a plist. The compiler does not show any errors, but it does not write to the plist anyway. I have tried this on a real device too, not just the Simulator. Basically, what this code does, is that when you click the accessoryView of a UITableViewCell, it gets the indexPath pressed, edits an NSMutableArray and tries to write that NSMutableArray to a plist. It then reloads the arrays mentioned (from multiple plists) and reloads the data in a UITableView from the arrays. Code: NSIndexPath *indexPath = [table indexPathForRowAtPoint:[[[event touchesForView:sender] anyObject] locationInView:table]]; [arrayFav removeObjectAtIndex:[arrayFav indexOfObject:[NSNumber numberWithInt:[[arraySub objectAtIndex:indexPath.row] intValue]]]]; NSString *rootPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; NSString *plistPath = [rootPath stringByAppendingPathComponent:@"arrayFav.plist"]; NSLog(@"%@ - %@", rootPath, plistPath); [arrayFav writeToFile:plistPath atomically:YES]; // Reloads data into the arrays [self loadDataFromPlists]; // Reloads data in tableView from arrays [tableFarts reloadData];

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  • Make winform run away from the mouse.

    - by JACK IN THE CRACK
    Okay so I'm trying to make a little gag program that will "run away" from the mouse. So, to get the mouse coordinates for the whole screen and not just the form control I had to create a little helper: static class MouseHelper { [DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] internal static extern bool GetCursorPos(ref Point pt); public static Point GetPosition() { Point w32Mouse = new Point(); GetCursorPos(ref w32Mouse); return w32Mouse; } } Now I thought I was going to use the MouseMove event... but that doesn't work for outside the form control either so I have an auto-enabled timer on a 10ms loop called timerMouseMove. public partial class Form1 : Form { public Form1() { InitializeComponent(); } private bool CollisionCheck() { Point win32Mouse = MouseHelper.GetPosition(); if (win32Mouse.X <= Location.X || win32Mouse.X >= (Location.X + Width)) return false; if (win32Mouse.Y <= Location.Y || win32Mouse.Y >= (Location.Y + Height)) return false; return true; } private void timerMouseMove_Tick(object sender, EventArgs e) { if (CollisionCheck()) Location = new Point(Location.X + 1, Location.Y + 1); } } So this works out nicely, at least I have the collision checking working and whatnot. But now, how should I go about figuring which side of the form the mouse has collided with, so that I can update its location to move in the opposite direction the mouse collides with it? And such halp

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  • Design Practice Retrieve Multiple Users - PHP

    - by pws5068
    Greetings all, I'm looking for a more efficient way to grab multiple users without too much code redundancy. I have a Users class, (here's a highly condensed representation) Class Users { function __construct() { ... ... } private static function getNew($id) { // This is all only example code $sql = "SELECT * FROM Users WHERE User_ID=?"; $user = new User(); $user->setID($id); .... return $user; } public static function getNewestUsers($count) { $sql = "SELECT * FROM Users ORDER BY Join_Date LIMIT ?"; $users = array(); // Prepared Statement Data Here while($stmt->fetch()) { $users[] = Users::getNew($id); ... } return $users; } // These have more sanity/security checks, demonstration only. function setID($id) { $this->id = $id; } function setName($name) { $this->name = $name; } ... } So clearly calling getNew() in a loop is inefficient, because it makes $count number of calls to the database each time. I would much rather select all users in a single SQL statement. The problem is that I have probably a dozen or so methods for getting arrays of users, so all of these would now need to know the names of the database columns which is repeating a lot of structure that could always change later. What are some other ways that I could approach this problem? My goals include efficiency, flexibility, scalability, and good design practice.

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  • Animation not playing

    - by Tate Allen
    Hello again, I didn't say this last time but I am relatively new to iPhone programming and extremely new to iPhone game development so bear with me. In my game, when I tilt the device, the character moves and faces the correct direction, but does not animate. I am using an animated UIImageView. Here is the code: float newX = character.center.x + (accel.x * 12); if (newX 30 && newX < 290) character.center = CGPointMake(newX, character.center.y); if (accel.x < 0) { NSArray *imgArray = [[NSArray alloc] initWithObjects: [UIImage imageNamed:@"run3left.png"], [UIImage imageNamed:@"run1left.png"], [UIImage imageNamed:@"run2left.png"], [UIImage imageNamed:@"run1left.png"], nil]; character.animationImages = imgArray; character.animationDuration = 0.5; character.contentMode = UIViewContentModeBottomLeft; [self.view addSubview:character]; [character startAnimating]; } if (accel.x > 0) { NSArray *imgArray = [[NSArray alloc] initWithObjects: [UIImage imageNamed:@"run3.png"], [UIImage imageNamed:@"run1.png"], [UIImage imageNamed:@"run2.png"], [UIImage imageNamed:@"run1.png"], nil]; character.animationImages = imgArray; character.animationDuration = 0.5; character.contentMode = UIViewContentModeBottomLeft; [self.view addSubview:character]; [character startAnimating]; } }

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  • .NET Hashtable - "Same" key, different hashes

    - by Simon Lindgren
    Is it possible for two .net strings to have different hashes? I have a Hashtable with amongst others the key "path". When I loop through the elements in the table to print it, i can see that the key exists. When trying to looking it up however, there is no matching element. Debugging suggests that the string I'm looking for has a different hash than the one I'm supplying as the key. This code is in a Castle Monorail project, using brail as a view engine. The key I'm looking for is inserted by a brail line like this: UrlHelper.Link(node.CurrentPage.LinkText, {@params: {@path: "/Page1"}}) Then, in this method (in a custom IRoutingRule): public string CreateUrl(System.Collections.IDictionary parameters) { PrintDictionaryToLog(parameters); string url; if (parameters.Contains("path")) { url = (string)parameters["path"]; } else { return null; } } The key is printed to the log, but the function returns null. I didn't know this could even be a problem with .net strings, but I guess this is some kind of encoding issue? Oh, and this is running mono.

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  • statemachine, conditional transitions

    - by astropanic
    I'm currently using Workflow. class Link < ActiveRecord::Base include Workflow workflow do state :new do event :process, :transitions_to => :checking #checking http_response_code & content_type end state :checking do event :process, :transitions_to => :fetching_links # fetching all links end state :fetching_links do event :process, :transitions_to => :checking #ready for next check end end end Now, I can do: l = Link.new l.process! l.process! l.process! l.process! # n times l.process! (in a loop, or cron job for example) But it can happens, some link will not respond or give me an invalid response durning the checking process. How I can conditionally switch to another state ? I mean something like this: class Link < ActiveRecord::Base include Workflow workflow do state :new do event :process, :transitions_to => :checking #checking http_response_code & content_type end state :checking do event :process, :transitions_to => :fetching_links # if all is fine event :process, :transitions_to => :failded # if something goes wrong end state :fetching_links do event :process, :transitions_to => :checking #ready for next check end end end

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  • Python template engine

    - by jturo
    Hello there, Could it be possible if somebody could help me get started in writing a python template engine? I'm new to python and as I learn the language I've managed to write a little MVC framework running in its own light-weight-WSGI-like server. I've managed to write a script that finds and replaces keys for values: (Obviously this is not how my script is structured or implemented. this is just an example) from string import Template html = '<html>\n' html += ' <head>\n' html += ' <title>This is so Cool : In Controller HTML</title>\n' html += ' </head>\n' html += ' <body>\n' html += ' Home | <a href="/hi">Hi ${name}</a>\n' html += ' </body>\n' html += '<html>' Template(html).safe_substitute(dict(name = 'Arturo')) My next goal is to implement custom statements, modifiers, functions, etc (like 'for' loop) but i don't really know if i should use another module that i don't know about. I thought of regular expressions but i kind feel like that wouldn't be an efficient way of doing it Any help is appreciated, and i'm sure this will be of use to other people too. Thank you

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  • Android - BroadcastReceiver CONNECTIVITY ACTION

    - by Marc Ortiz
    in my project there's a service that listens for changes in the connectivity. When wifi is switched off to on then it gets called. The problem it's that i'm using a fragment and inside a fragment there's a button with the setonclicklistener(); and onclick(); SOMETIMES when i touch the button then the service receives an intent that the connectivity has changed (the method gets called without any reason...). Here's the code of my fragment activity for the viewpager layout: public static class FragmentSelection extends Fragment { int mNum; static FragmentSelection newInstance(int num) { FragmentSelection f = new FragmentSelection(); // Supply num input as an argument. Bundle args = new Bundle(); args.putInt("num", num); f.setArguments(args); return f; } /** * When creating, retrieve this instance's number from its arguments. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mNum = (getArguments() != null ? getArguments().getInt("num") : 1) + 1; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { final View v = inflater.inflate(R.layout.fragment_intro_contenido, container, false); Button btStart = (Button) v.findViewById(R.id.btChanged); final CheckBox cbSMS = (CheckBox) v.findViewById(R.id.checkBoxSms); final CheckBox cbCalls = (CheckBox) v .findViewById(R.id.checkBoxLlamadas); final CheckBox cbApps = (CheckBox) v .findViewById(R.id.checkBoxApps); final CheckBox cbPosition = (CheckBox) v .findViewById(R.id.checkBoxPosicion); final CheckBox cbContacts = (CheckBox) v .findViewById(R.id.checkBoxContactos); final CheckBox cbAll = (CheckBox) v.findViewById(R.id.checkBoxAll); cbSMS.setChecked(true); cbCalls.setChecked(true); cbApps.setChecked(true); cbPosition.setChecked(true); cbContacts.setChecked(true); cbAll.setChecked(true); btStart.setOnClickListener(new View.OnClickListener() { public void onClick(View c) { Intent i = new Intent(); i.setClass(v.getContext(), AnonymeActivity.class); if (!cbSMS.isChecked()) { i.putExtra("sms", 0); } else { i.putExtra("sms", 1); } if (!cbCalls.isChecked()) { i.putExtra("calls", 0); } else { i.putExtra("calls", 1); } if (cbContacts.isChecked()) { i.putExtra("contacts", 1); } else { i.putExtra("contacts", 0); } if (cbApps.isChecked()) { i.putExtra("apps", 1); } else { i.putExtra("apps", 0); } if (!cbPosition.isChecked()) { i.putExtra("gps", 0); } else { i.putExtra("gps", 1); } if (!cbAll.isChecked()) { if (cbSMS.isChecked() && cbCalls.isChecked() && cbContacts.isChecked() && cbApps.isChecked() && cbPosition.isChecked()) { i.putExtra("all", 1); } else { i.putExtra("all", 0); } } else { i.putExtra("all", 1); } startActivity(i); } }); return v; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); } } My BroadcastReceiver class: class Broadcast_Reciver extends BroadcastReceiver implements Variables { CheckConexion cc; @Override public void onReceive(Context contxt, Intent intent) { // Cuando hay un evento, lo diferenciamos y hacemos una acción. if (intent.getAction().equals(SMS_RECEIVED)) { Sms sms = new Sms(null, contxt); sms.uploadNewSms(intent); } else if (intent.getAction().equals(Intent.ACTION_BATTERY_LOW)) { // st.batterylow(contxt); } else if (intent.getAction().equals(Intent.ACTION_POWER_CONNECTED)) { // st.power(1, contxt); } else if (intent.getAction().equals(Intent.ACTION_POWER_DISCONNECTED)) { // st.power(0, contxt); } else if (intent.getAction().equals(Intent.ACTION_CALL_BUTTON)) { // Notify } else if (intent.getAction().equals(Intent.ACTION_CAMERA_BUTTON)) { // Notify } else if (intent.getAction().equals(Intent.ACTION_PACKAGE_ADDED) || intent.getAction().equals(Intent.ACTION_PACKAGE_CHANGED) || intent.getAction().equals(Intent.ACTION_PACKAGE_REMOVED)) { Database db = new Database(contxt); if (db.open().Preferences(4)) { Uri data = intent.getData(); new ListApps(contxt).import_app(intent, contxt, data, intent.getAction()); } db.close(); } else if (intent.getAction().equals( ConnectivityManager.CONNECTIVITY_ACTION)) { cc = new CheckConexion(contxt); if (cc.isOnline()) { Database db = new Database(contxt); if (db.open().move() == 1) { new UploadOffline(contxt); } db.close(); } } } } And the errors: 9-03 23:20:37.887: E/SqliteDatabaseCpp(2715): CREATE TABLE android_metadata failed 09-03 23:20:37.887: E/SQLiteDatabase(2715): Failed to open the database. closing it. 09-03 23:20:37.887: E/SQLiteDatabase(2715): android.database.sqlite.SQLiteDatabaseLockedException: database is locked 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.database.sqlite.SQLiteDatabase.native_setLocale(Native Method) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.database.sqlite.SQLiteDatabase.setLocale_(SQLiteDatabase.java:2211) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.database.sqlite.SQLiteDatabase.setLocale(SQLiteDatabase.java:2199) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:1130) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:1081) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:1167) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.app.ContextImpl.openOrCreateDatabase(ContextImpl.java:833) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:221) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:157) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at com.background.Database.open(Database.java:127) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at <b><b><b><h3>com.background.Broadcast_Reciver.onReceive(BroadcastService.java:100)</h3> 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:728) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.os.Handler.handleCallback(Handler.java:605) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.os.Handler.dispatchMessage(Handler.java:92) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.os.Looper.loop(Looper.java:137) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at android.app.ActivityThread.main(ActivityThread.java:4507) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at java.lang.reflect.Method.invokeNative(Native Method) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at java.lang.reflect.Method.invoke(Method.java:511) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 09-03 23:20:37.887: E/SQLiteDatabase(2715): at dalvik.system.NativeStart.main(Native Method) 09-03 23:20:37.887: D/AndroidRuntime(2715): Shutting down VM 09-03 23:20:37.887: W/dalvikvm(2715): threadid=1: thread exiting with uncaught exception (group=0x40c3b1f8) 09-03 23:20:37.902: E/AndroidRuntime(2715): FATAL EXCEPTION: main 09-03 23:20:37.902: E/AndroidRuntime(2715): java.lang.RuntimeException: Error receiving broadcast Intent { act=android.net.conn.CONNECTIVITY_CHANGE flg=0x10000010 (has extras) } in com.background.Broadcast_Reciver@415203f8 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:737) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.os.Handler.handleCallback(Handler.java:605) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.os.Handler.dispatchMessage(Handler.java:92) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.os.Looper.loop(Looper.java:137) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.app.ActivityThread.main(ActivityThread.java:4507) 09-03 23:20:37.902: E/AndroidRuntime(2715): at java.lang.reflect.Method.invokeNative(Native Method) 09-03 23:20:37.902: E/AndroidRuntime(2715): at java.lang.reflect.Method.invoke(Method.java:511) 09-03 23:20:37.902: E/AndroidRuntime(2715): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790) 09-03 23:20:37.902: E/AndroidRuntime(2715): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 09-03 23:20:37.902: E/AndroidRuntime(2715): at dalvik.system.NativeStart.main(Native Method) 09-03 23:20:37.902: E/AndroidRuntime(2715): Caused by: android.database.sqlite.SQLiteDatabaseLockedException: database is locked 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.database.sqlite.SQLiteDatabase.native_setLocale(Native Method) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.database.sqlite.SQLiteDatabase.setLocale_(SQLiteDatabase.java:2211) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.database.sqlite.SQLiteDatabase.setLocale(SQLiteDatabase.java:2199) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:1130) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:1081) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:1167) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.app.ContextImpl.openOrCreateDatabase(ContextImpl.java:833) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:221) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:157) 09-03 23:20:37.902: E/AndroidRuntime(2715): at com.background.Database.open(Database.java:127) 09-03 23:20:37.902: E/AndroidRuntime(2715): at com.background.Broadcast_Reciver.onReceive(BroadcastService.java:100) 09-03 23:20:37.902: E/AndroidRuntime(2715): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:728) 09-03 23:20:37.902: E/AndroidRuntime(2715): ... 9 more Checkout that the program goes into BroadcastReceiver class and i don't understand why!

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  • Does HttpListener work well on Mono?

    - by billpg
    Hi everyone. I'm looking to write a small web service to run on a small Linux box. I prefer to code in C#, so I'm looking to use Mono. I don't want the overhead of running a full web server or Mono's version of ASP.NET. I'm thinking of having a single process with a thread dealing with each client connection. Shared memory between threads instead of a database. I've read a little on Microsoft's version of HttpListener and how it works with the Http.sys driver. Alas, Mono's documentation on this class is just the automated class interface with no discussion of how it works under the hood. (Linux doesn't have Http.sys, so I imagine it's implemented substantially differently.) Could anyone point me towards some resources discussing this module please? Many thanks, Bill, billpg.com (A little background to my question for the interested.) Some time ago, I asked this question, interested in keeping a long conversation open with lots of back-and-forth. I had settled on designing my own ad-hoc protocol, but people I spoke to really wanted a REST interface, even at the cost of the "Okay, send your command now" signal. So, I wondered about running ASP.NET on a Linux/Mono server, but stumbled upon HttpListener. This seemed ideal, as each "conversation" could run in a separate thread. The thread that calls HttpListener in a loop can look for which thread each incomming connection is for and pass the reference to that thread. The alternative for an ASP.NET driven service, would be to have the ASPX code pick up the state from a database, and write back the new state when it finishes. Yes, it would work, but that's a lot of overhead.

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  • Elegant Algorithm for Parsing Data Stream Into Record

    - by Matt Long
    I am interfacing with a hardware device that streams data to my app over Wifi. The data is streaming in just fine. The data contains a character header (DATA:) that indicates a new record has begun. The issues is that the data I receive doesn't necessarily fall on the header boundary, so I have to capture the data until what I've captured contains the header. Then, everything that precedes the header goes into the previous record and everything that comes after it goes into a new record. I have this working, but wondered if anyone has done this before and has a good computer-sciencey way to solve the problem. Here's what I do: Convert the NSData of the current read to an NSString Append the NSString to a placeholder string Check placeholder string for the header (DATA:). If the header is not there, just wait for the next read. If the header exists, append whatever precedes it to a previous record placeholder and hand that placeholder off to an array as a complete record that I can further parse into fields. Take whatever shows up after the header and place it in the record placeholder so that it can be appended to in the next read. Repeat steps 3 - 5. Let me know if you see any flaws with this or have a suggestion for a better way. Seems there should be some design pattern for this, but I can't think of one. Thanks.

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  • Can I ignore a SIGFPE resulting from division by zero?

    - by Mikeage
    I have a program which deliberately performs a divide by zero (and stores the result in a volatile variable) in order to halt in certain circumstances. However, I'd like to be able to disable this halting, without changing the macro that performs the division by zero. Is there any way to ignore it? I've tried using #include <signal.h> ... int main(void) { signal(SIGFPE, SIG_IGN); ... } but it still dies with the message "Floating point exception (core dumped)". I don't actually use the value, so I don't really care what's assigned to the variable; 0, random, undefined... EDIT: I know this is not the most portable, but it's intended for an embedded device which runs on many different OSes. The default halt action is to divide by zero; other platforms require different tricks to force a watchdog induced reboot (such as an infinite loop with interrupts disabled). For a PC (linux) test environment, I wanted to disable the halt on division by zero without relying on things like assert.

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  • Why use bin2hex when inserting binary data from PHP into MySQL?

    - by Atli
    I heard a rumor that when inserting binary data (files and such) into MySQL, you should use the bin2hex() function and send it as a HEX-coded value, rather than just use mysql_real_escape_string on the binary string and use that. // That you should do $hex = bin2hex($raw_bin); $sql = "INSERT INTO `table`(`file`) VALUES (X'{$hex}')"; // Rather than $bin = mysql_real_escape_string($raw_bin); $sql = "INSERT INTO `table`(`file`) VALUES ('{$bin}')"; It is supposedly for performance reasons. Something to do with how MySQL handles large strings vs. how it handles HEX-coded values However, I am having a hard time confirming this. All my tests indicate the exact oposite; that the bin2hex method is ~85% slower and uses ~24% more memory. (I am testing this on PHP 5.3, MySQL 5.1, Win7 x64 - Using a farily simple insert loop.) For instance, this graph shows the private memory usage of the mysqld process while the test code was running: Does anybody have any explainations or reasources that would clarify this? Thanks.

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  • Xpath: Selecting all of an element type?

    - by Johannes
    I'm just starting to learn Xpath, I'm trying to write a line of code that will select all of the actors in EACH movie parent (through Java!). Below, I have an example of one movie, but there are multiple <Movie> elements, each with <Actor> elements. <Movie Genre = 'Other'> <Title>Requiem For A Dream</Title> <ReleaseYear>2000</ReleaseYear> <Director>Darren Aronofsky</Director> <Actor Character = 'Sara Goldfarb'>Ellen Burstyn</Actor> <Actor Character = 'Harry Goldfarb'>Jared Leto</Actor> <Actor Character = 'Marion Silver'>Jennifer Connelly</Actor> <Actor Character = 'Tyrone C. Love'>Marlon Wayans</Actor> </Movie> Currently, I can only select the first <Actor> element of each <Movie> element -- is it possible to select all of them without using a for loop? Here is my current line of code that displays the first <Actor> element of every <Movie> element: System.out.println("Starring: " + xpath.evaluate("Actor", movieNode) + " as " + xpath.evaluate("Actor/@Character", movieNode) + "\n"); Any and all help if much appreciated!

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  • function in php for displaying a menu

    - by Stanislas Piotrowski
    I met some trouble with a function I have written. In fact I have an array in which I have different custom values. I would like to display the result of that, so here is my function function getAccess($var){ $data=mysql_fetch_array(mysql_query("SELECT * FROM `acces` WHERE `id`='.$var.'")); return $data; } getAccess($_SESSION['id']); $paramAcces = array( 'comptesfinanciers' => array( 'libelle' => 'COMPTES FINANCIERS', 'acces' => $data['comptesfinanciers'], 'lien' => 'financier', 'image' => 'images/finances.png' ) ); I have done a var_dump of $paramAcces which return array(1) { ["comptesfinanciers"]=> array(4) { ["libelle"]=> string(18) "COMPTES FINANCIERS" ["acces"]=> NULL ["lien"]=> string(9) "financier" ["image"]=> string(19) "images/finances.png" } } (that are the ecpected values). Here is the function for displaying what is in the array /** * AFFICHAGE DE LA SECTION PARAMETRES SUR LA PAGE D'ACCUEIL */ function affichParam($paramAccees){ echo '<ul class="getcash-vmenu"><li><a href="index.php?p='.$paramAccees['lien'].'" class="active"><span class="t"><img src="'.$paramAccees['image'].'"> '.$paramAccees['libelle'].'</span></a></li></ul>'; } The trouble is that actualy it return to me an empty line. I really do not know what I'm wrong doin: I call the function like that: <?php affichParam($paramAccees) ?> In a second time I will add more value, so I think I will have to do a for each loop or something like that. But actualy I just would like to display the first record. Any kind of help will be much apprecitaed

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  • permutations gone wrong

    - by vbNewbie
    I have written code to implement an algorithm I found on string permutations. What I have is an arraylist of words ( up to 200) and I need to permutate the list in levels of 5. Basically group the string words in fives and permutated them. What I have takes the first 5 words generates the permutations and ignores the rest of the arraylist? Any ideas appreciated. Private Function permute(ByVal chunks As ArrayList, ByVal k As Long) As ArrayList ReDim ItemUsed(k) pno = 0 Permutate(k, 1) Return chunks End Function Private Shared Sub Permutate(ByVal K As Long, ByVal pLevel As Long) Dim i As Long, Perm As String Perm = pString ' Save the current Perm ' for each value currently available For i = 1 To K If Not ItemUsed(i) Then If pLevel = 1 Then pString = chunks.Item(i) 'pString = inChars(i) Else pString = pString & chunks.Item(i) 'pString += inChars(i) End If If pLevel = K Then 'got next Perm pno = pno + 1 SyncLock outfile outfile.WriteLine(pno & " = " & pString & vbCrLf) End SyncLock outfile.Flush() Exit Sub End If ' Mark this item unavailable ItemUsed(i) = True ' gen all Perms at next level Permutate(K, pLevel + 1) ' Mark this item free again ItemUsed(i) = False ' Restore the current Perm pString = Perm End If Next K above is = to 5 for the number of words in one permutation but when I change the for loop to the arraylist size I get an error of index out of bounds

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  • Improve performance of searching JSON object with jQuery

    - by cale_b
    Please forgive me if this is answered on SO somewhere already. I've searched, and it seems as though this is a fairly specific case. Here's an example of the JSON (NOTE: this is very stripped down - this is dynamically loaded, and currently there are 126 records): var layout = { "2":[{"id":"40","attribute_id":"2","option_id":null,"design_attribute_id":"4","design_option_id":"131","width":"10","height":"10", "repeat":"0","top":"0","left":"0","bottom":"0","right":"0","use_right":"0","use_bottom":"0","apply_to_options":"0"}, {"id":"41","attribute_id":"2","option_id":"115","design_attribute_id":"4","design_option_id":"131","width":"2","height":"1", "repeat":"0","top":"0","left":"0","bottom":"4","right":"2","use_right":"0","use_bottom":"0","apply_to_options":"0"}, {"id":"44","attribute_id":"2","option_id":"118","design_attribute_id":"4","design_option_id":"131","width":"10","height":"10", "repeat":"0","top":"0","left":"0","bottom":"0","right":"0","use_right":"0","use_bottom":"0","apply_to_options":"0"}], "5":[{"id":"326","attribute_id":"5","option_id":null,"design_attribute_id":"4","design_option_id":"154","width":"5","height":"5", "repeat":"0","top":"0","left":"0","bottom":"0","right":"0","use_right":"0","use_bottom":"0","apply_to_options":"0"}] }; I need to match the right combination of values. Here's the function I currently use: function drawOption(attid, optid) { var attlayout = layout[attid]; $.each(attlayout, function(k, v) { // d_opt_id and d_opt_id are global scoped variable set elsewhere if (v.design_attribute_id == d_att_id && v.design_option_id == d_opt_id && v.attribute_id == attid && ((v.apply_to_options == 1 || (v.option_id === optid)))) { // Do stuff here } }); } The issue is that I might iterate through 10-15 layouts (unique attid's), and any given layout (attid) might have as many as 50 possibilities, which means that this loop is being run A LOT. Given the multiple criteria that have to be matched, would an AJAX call work better? (This JSON is dynamically created via PHP, so I could craft a PHP function that could possibly do this more efficently), or am I completely missing something about how to find items in a JSON object? As always, any suggestions for improving the code are welcome! EDIT: I apologize for not making this clear, but the purpose of this question is to find a way to improve the performance. The page has a lot of javascript, and this is a location where I know that performance is lower than it could be.

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