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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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• Window Leaked on FBConnect in Android?

  - by Praveen Chandrasekaran

  how to rectify this Window Leaked Exception. i cant find why its occured. My LogCat Info: 05-07 17:25:05.402: ERROR/WindowManager(13595): Activity com.codecarpet.fbconnect.FBLoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b9ae0 that was originally added here 05-07 17:25:05.402: ERROR/WindowManager(13595): android.view.WindowLeaked: Activity com.codecarpet.fbconnect.FBLoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b9ae0 that was originally added here 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.ViewRoot.<init>(ViewRoot.java:214) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.Window$LocalWindowManager.addView(Window.java:409) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.Dialog.show(Dialog.java:238) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ProgressDialog.show(ProgressDialog.java:107) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ProgressDialog.show(ProgressDialog.java:95) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.codecarpet.fbconnect.FBProgressDialog.show(FBProgressDialog.java:106) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.codecarpet.fbconnect.FBDialog$WebViewClientImpl.onPageStarted(FBDialog.java:508) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:214) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.os.Handler.dispatchMessage(Handler.java:99) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.os.Looper.loop(Looper.java:123) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ActivityThread.main(ActivityThread.java:4203) 05-07 17:25:05.402: ERROR/WindowManager(13595): at java.lang.reflect.Method.invokeNative(Native Method) 05-07 17:25:05.402: ERROR/WindowManager(13595): at java.lang.reflect.Method.invoke(Method.java:521) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 05-07 17:25:05.402: ERROR/WindowManager(13595): at dalvik.system.NativeStart.main(Native Method)

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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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• Unexpected Event Behavior When Using VB6 with COM Interop (C#)

  - by Randal

  We are using a COM Interop (C#) to allow for a VB6 application to send data to a server. Once the server receives the data, the managed code will raise a DataSent event. This event is only fired after a correlation ID is returned to the original caller. About 1% of the time, we've encountered VB6 executing the raised event before finishing the function that originally sent the data. Using the following code: ' InteropTester.COMEvents is the C# object ' Dim WithEvents m_ManagedData as InteropTester.COMEvents Private Sub send_data() Set m_ManagedData = new COMEvents Dim id as Integer ' send 5 to using the managed interop object ' id = m_ManagedData.SendData(5) LogData "ID " & id & " was returned" m_correlationIds.Add id End Sub Private Sub m_ManagedData_DataSent(ByVal sender as Variant, ByVal id as Integer) LogData "Data was successfully sent to C#" ' check if the returned ID is in the m_correlationIds collection goes here' End Sub We can verify that the id is returned with a value when we call m_ManagedData.SendData(5), but the logs then show that the m_ManagedData_DataSent is occasionally called before send_data ends. How is possible for VB6 to access the Message Loop to know that the DataSent event was raised before exiting send_data()? We are not calling DoEvents and everything within VB6 is synchronous. Thanks in advance for your help.

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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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• Excel CSV into Nested Dictionary; List Comprehensions

  - by victorhooi

  heya, I have a Excel CSV files with employee records in them. Something like this: mail,first_name,surname,employee_id,manager_id,telephone_number [email protected],john,smith,503422,503423,+65(2)3423-2433 [email protected],george,brown,503097,503098,+65(2)3423-9782 .... I'm using DictReader to put this into a nested dictionary: import csv gd_extract = csv.DictReader(open('filename 20100331 original.csv'), dialect='excel') employees = dict([(row['employee_id'], row) for row in gp_extract]) Is the above the proper way to do it - it does work, but is it the Right Way? Something more efficient? Also, the funny thing is, in IDLE, if I try to print out "employees" at the shell, it seems to cause IDLE to crash (there's approximately 1051 rows). 2. Remove employee_id from inner dict The second issue issue, I'm putting it into a dictionary indexed by employee_id, with the value as a nested dictionary of all the values - however, employee_id is also a key:value inside the nested dictionary, which is a bit redundant? Is there any way to exclude it from the inner dictionary? 3. Manipulate data in comprehension Thirdly, we need do some manipulations to the imported data - for example, all the phone numbers are in the wrong format, so we need to do some regex there. Also, we need to convert manager_id to an actual manager's name, and their email address. Most managers are in the same file, while others are in an external_contractors CSV, which is similar but not quite the same format - I can import that to a separate dict though. Are these two items things that can be done within the single list comprehension, or should I use a for loop? Or does multiple comprehensions work? (sample code would be really awesome here). Or is there a smarter way in Python do it? Cheers, Victor

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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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• 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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• auto m3u creation

  - by newbie69

  Hi, I am looking for a solution to automatically create .m3u playlists for each music folder in my sdcard so that the music player can play music by folders. I had written a simple VB.Net app in the past that does exactly the above but apparently, it has to be run from Windows. Since I have no Java nor Android developing experience I found it quite hard to try to write a similar app that can be run directly from the phone. In a few words, the app does the following: 1) Searches the SD and lists all folders that contain 2 or more .mp3 files (just for user verification) 2) Creates in every listed folder above, a .m3u file that simply lists line-by-line all the mp3 files that exist in the specific folder. Is there such an app or could someone spare some time and give me some rough instructions on how to create it in Eclipse 3.5.2 environment? (device used: Motorola Droid/Milestone, Android 2.1) I don't care about any graphics or complex UI, just a script to execute the above procedure that would give every "playlist-supporting" music player in Android, the precious ability to play music by folders. I know it is too much to ask but just in case! Thanx in advance.

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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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• Noob question about a statement in a Java program

  - by happysoul

  I am beginner to java and was trying out this code puzzle from the book head first java which I solved as follows and got the output correct :D class DrumKit { boolean topHat=true; boolean snare=true; void playSnare() { System.out.println("bang bang ba-bang"); } void playTopHat() { System.out.println("ding ding da-ding"); } } public class DrumKitTestDriver { public static void main(String[] args) { DrumKit d =new DrumKit(); if(d.snare==true) { d.playSnare(); } d.playTopHat(); } } Output is :: bang bang ba-bang ding ding da-ding Now the problem is that in that code puzzle one code snippet is left that I did not include..it's as follows d.snare=false; Even though I did not write it , I got the output like the book. I am wondering why is there need for us to set it's value as false even when we know the code is gonna run without it too !?? I am wondering what the coder had in mind ..I mean what could be the possible future use and motive behind doing this ? I am sorry if it's a dumb question. I just wanna know why or why not to include that particular statement ? It's not like there's a loop or something that we need to come out of. Why is that statement there ?

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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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• 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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• Implementing subtables in JSF 1.1

  - by Xenon

  We're looking for a way to implement subtables in JSF 1.1. We cannot use Rich Faces due to the fact that out target server is WebSphere 6.1. I've tried JSTL and Tomahawk to no avail. Also, our project is using JSP's and not facelets. Here's my HTML/JSTL example: <table border="1" width="700px"> Header 1 Header 2 Header 3 Header 4 Header 5 ${item.value1} ${item.value2} ${item.value3} ${item.value4} ${item.value5} <tr> <td colspan="5"> <table border="1" width="100%"> <thead> <tr> <td>SubHeader 1</td> <td>SubHeader 2</td> <td>SubHeader 3</td> <td>SubHeader 4</td> <td>SubHeader 5</td> </tr> </thead> <!-- For loop iteration over subtable data --> <c:forEach var="subitem" items="${item.subtable}"> <tr> <td>${subitem.value1}</td> <td>${subitem.value2}</td> <td>${subitem.value2}</td> <td>${subitem.value2}</td> <td>${subitem.value2}</td> </tr> </c:forEach> </table> </td> </tr>

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• Problem Writing Linq2Xml Query

  - by Gavin Draper

  I'm trying to write a Linq2XML query to query the following XML. I need it to pull back all photos for a given GalleryID. <Albums> <Album GalleryId="1" Cover="AlbumCover1.jpg" Title="Album 1"> <Photos> <Photo Title="Image1" URL="img1.jpg" DateAdded="01/01/2010 09:20"/> <Photo Title="Image2" URL="img2.jpg" DateAdded="01/01/2010 09:20"/> <Photo Title="Image3" URL="img3.jpg" DateAdded="01/01/2010 09:20"/> </Photos> </Album> <Album GalleryId="2" Cover="AlbumCover1.jpg" Title="Album 2"> <Photos> <Photo Title="Image1" URL="img1.jpg" DateAdded="01/01/2010 09:20"/> <Photo Title="Image2" URL="img2.jpg" DateAdded="01/01/2010 09:20"/> </Photos> </Album> </Albums> The best I've come up with is XDocument xmlDoc = XDocument.Load(GalleryFilePath); var x = from c in xmlDoc.Descendants("Album") where c.Attribute("GalleryId").Equals(GalleryId) orderby c.Attribute("Title").Value descending select new { Title = c.Element("Photo").Attribute("Title"), URL = c.Element("Photo").Attribute("URL"), DateAdded = c.Element("Photo").Attribute("DateAdded") }; This returns nothing, I'm guessing this is because I'm telling it to query the Album element then trying to loop through the photo elements. Any tips as to how this should be done? Thanks

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• Testing In-App-Billing with not published App

  - by Janusz

  I have an Android App that uses In-App-Billing to sell Account Managed Items. I tested the App with the static respons ids and everything seems to work. I now want to test the App with real product Ids. I created the App in the Google Play Store and uploaded a draft Version of the App with the correct Permissions. I know created an In-App-Billing item and published the item. At the moment the App is unpublished, the item is created and published and I have a test account that is registered in the Profile of the developer account and is the only account on the device that I use for testing. The App is signed with the same key as the uploaded draft. Edit:I'm testing with Android 4.1 && 4.03 at the moment If I try to buy the item the Google Play Store pops up but shows a dialog with the following method: The item you requested is not available for purchase. How can I test buying the item without publishing the App?

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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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• 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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• 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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• 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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• .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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• Performance Difference between HttpContext user and Thread user

  - by atrueresistance

  I am wondering what the difference between HttpContext.Current.User.Identity.Name.ToString.ToLower and Thread.CurrentPrincipal.Identity.Name.ToString.ToLower. Both methods grab the username in my asp.net 3.5 web service. I decided to figure out if there was any difference in performance using a little program. Running from full Stop to Start Debugging in every run. Dim st As DateTime = DateAndTime.Now Try 'user = HttpContext.Current.User.Identity.Name.ToString.ToLower user = Thread.CurrentPrincipal.Identity.Name.ToString.ToLower Dim dif As TimeSpan = Now.Subtract(st) Dim break As String = "nothing" Catch ex As Exception user = "Undefined" End Try I set a breakpoint on break to read the value of dif. The results were the same for both methods. dif.Milliseconds 0 Integer dif.Ticks 0 Long Using a longer duration, loop 5,000 times results in these figures. Thread Method run 1 dif.Milliseconds 125 Integer dif.Ticks 1250000 Long run 2 dif.Milliseconds 0 Integer dif.Ticks 0 Long run 3 dif.Milliseconds 0 Integer dif.Ticks 0 Long HttpContext Method run 1 dif.Milliseconds 15 Integer dif.Ticks 156250 Long run 2 dif.Milliseconds 156 Integer dif.Ticks 1562500 Long run 3 dif.Milliseconds 0 Integer dif.Ticks 0 Long So I guess what is more prefered, or more compliant with webservice standards? If there is some type of a performance advantage, I can't really tell. Which one scales to larger environments easier?

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• iPhone static library Clang/LLVM error: non_lazy_symbol_pointers

  - by Bekenn

  After several hours of experimentation, I've managed to reduce the problem to the following example (C++): extern "C" void foo(); struct test { ~test() { } }; void doTest() { test t; // 1 foo(); // 2 } This is being compiled for iOS devices in XCode 4.2, using the provided Clang compiler (Apple LLVM compiler 3.0) and the iOS 5.0 SDK. The project is configured as a Cocoa Touch Static Library, and "Enable Linking With Shared Libraries" is set to No because I'm building an AIR native extension. The function foo is defined in another external library. (In my actual project, this would be any of the C API functions defined by Adobe for use in AIR native extensions.) When attempting to compile this code, I get back the error: FATAL:incompatible feature used: section type non_lazy_symbol_pointers (must specify "-dynamic" to be used) clang: error: assembler command failed with exit code 1 (use -v to see invocation) The error goes away if I comment out either of the lines marked 1 or 2 above, or if I change the build setting "Enable Linking With Shared Libraries" to Yes. (However, if I change the build setting, then I get multiple ld warning: unexpected srelocation type 9 warnings when linking the library into the final project, and the application crashes when running on the device.) The build error also goes away if I remove the destructor from test. So: Is this a bug in Clang? Am I missing some all-important and undocumented build setting? The interaction between an externally-provided function and a struct with a destructor is very peculiar, to say the least.

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• What is the best way to extend restful_authentication/AuthLogic to support lazy logins by an anonymo

  - by Kevin Elliott

  I'm building an iPhone application that talks to a Ruby on Rails backend. The Ruby on Rails application will also service web users. The restful_authentication plugin is an excellent way to provide quick and customizable user authentication. However, I would like users of the iPhone application to have an account created automatically by the phone's unique identifier ([[UIDevice device] uniqueIdentifier]) stored in a new column. Later, when users are ready to create a username/password, the account will be updated to contain the username and password, leaving the iPhone unique identifier intact. Users should not be able to access the website until they've setup their username/password. They can however, use the iPhone application, since the application can authenticate itself using it's identifier. What is the best way to modify restful_authentication to do this? Create a plugin? Or modify the generated code? What about alternative frameworks, such as AuthLogic. What is the best way to allow iPhones to get a generated auth token locked to their UUID's, but then let the user create a username/password later?

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