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  • Saving core data in a thread, how to ensure its done writing before quitting?

    - by Shizam
    So I'm saving small images to core data which take a really short amount of time to save, like .2 seconds but I'm doing it while the user is flipping through a scroll view so in order to improve responsiveness I'm moving the saving to a thread. This works great, everything gets saved and the app is responsive. However, there is one thing in the core-data + multithreading doco that worries me: "In Cocoa, only the main thread is not-detached. If you need to save on other threads, you must write additional code such that the main thread prevents the application from quitting until all the save operation is complete." Ok, how do you do that? It only needs to last ~ .2 seconds and its rarely going to happen since the chance of the app quitting as something is saving is very low. How do I run something on the main thread that'll prevent the app from quitting AND not block the gui? Thanks

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  • CSS: How to make a Div of text underneath another Div selectable?

    - by jesse
    Hi, I have a few empty Divs on a page that are basically empty boxes to help me position some stuff to make a "liquid" website. Now I've got content underneath these Divs but I can't highlight/click on the links because these empty Divs are blocking it. I've got a reason I need to have the empty Divs to be on the top layer so I need a way to "click through" these Divs. What can I do? Thanks.

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  • iOS UITableViewCell UIImageView setting on different conditions

    - by chis54
    I have an app that has a UITableView and in my Cells I have UIImageViews and UILabels that change images/textColors for a day theme and a night theme (trying to be automatically set). My issue is that I set the images and colors when the table is populated with cellForRowAtIndexPath and its during the day "theme", then if I reopen the app hours later in the night "theme" and the app is still in the "background" and not needing to be reloaded (ie viewDidLoad doesn't fire), the day "theme" shows until I scroll the UITableView and then the night "theme" shows when new cells are brought into view by scrolling. How should I set the objects in my cells when changing around time of the day? I was thinking to use an NSTimer, but I'm not sure how to update the objects in my cells. I was also thinking about using the appropriate methods in the AppDelagate to set things in motion, but is there a way to force reloading the TableView? Any suggestions?

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  • Jquery convert string of one type to string array.....

    - by chandru_cp
    Consider a string which is {"Table" : [{"Bird" : "Peacock"}, {"Bird" : "Crow"}]} to this ["Peacock", "Crow"] in jquery... Is this possible? EDIT: I am doing this but didnt work... $(document).ready(function() { var obj = JSON.parse('{"Table" : [{"Bird" : "Peacock"},{"Bird" : "Crow"}]}'); myarray = []; $.each(obj.table, function(i, v) { myarray.push(v.Bird); }); $("#tags").autocomplete(myarray, { width: 138, max: 4, highlight: false, multiple: true, multipleSeparator: " ", scroll: true, scrollHeight: 300 }); });

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  • How do I register a Javascript function to run with every postback?

    - by Kevin
    I have a treeview in a user control. I need to run a javascript function with every synch postback to scroll the div it's in to the right position. I've got it working, but I think there has to be a "cleaner" way to do it. In the Page_Load function of the control, I have the following code. Is there a better way to do it? ScriptManager.RegisterStartupScript(this.UpdatePanel1, this.GetType(), "key" + DateTime.Now.Ticks, "RestorePosition();", true);

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  • can you use jquery lazyload on all images (not just ones out of view)

    - by ooo
    i have a webpage with a lot of images (photo album). I am using lazyloading jquery plugin which is great to only load the images out of browser view when i scroll down. The one issue i have is that i want the loading icon to show up first on images loading IN the current view as well as some of them are big images and they show up with that bad browser "image not loaded yet" icon until they download. I don't see any property on this plugin to support this for both in view and for scrolling. does anyone know if this is possible?

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  • I'm new one in Android and HELP :)

    - by Kooper
    Hello everyone , I'd started for about a mouth and I have some problems now :( 1. I create a TabActivity and it has three Activity(tab1,tab2,tab3).I wanna realize that if I press a button in tab1,then TextView in tab2 can be changed. I've tried Intent and Bundle , but that didn't work and force close . Maybe because of the TabActivity I think . 2. If I have a layout and there are many TextView on it. But some are out of the screen. How can I scroll the screen? 3. Is it possible that TextView in Tablelayout can be clicked ? I've sreached there problems on Google for there days but still bother me . Really need help, Thanks :)

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  • How to animate/show a hidden div?

    - by Ricky Cortes
    So I'm trying to show a div with a toggle transition when a link is clicked. My code: $("nav ul li#about a").click(function (e) { $("div#about").slideToggle(200); e.preventDefault(); }); It works great, but I want this effect here: http://ricostacruz.com/jquery.transit/ Scroll down and find "TRANSITIONS FOR OTHER PROPERTIES". Do you see that scale effect (first demo box)? THAT is what I want instead of the slideToggle. So I want this similar effect to TOGGLE... transition IN and OUT when link is clicked. I hope you guys can help me :)

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  • JPanel's child components paint/layout problem

    - by Tom Brito
    I'm having a problem that when my frame is shown (after a login dialog) the buttons are not on correct position, then in some miliseconds they go to the right position (the center of the panel with border layout). When I make a SSCCE, it works correct, but when I run my whole code I have this fast-miliseconds delay to the buttons to go to the correct place. Unfortunately, I can't post the whole code, but the method that shows the frame is: public void login(JComponent userView) { centerPanel.removeAll(); centerPanel.add(userView); centerPanel.revalidate(); centerPanel.repaint(); frame.setVisible(true); } What would cause this delay to the panel layout? (I'm running everything in the EDT) -- update In my machine, this SSCCE shows the layout problem in 2 of 10 times I run it: import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.SwingUtilities; public class TEST { public static void main(String[] args) throws Exception { SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { System.out.println("Debug test..."); JPanel btnPnl = new JPanel(); btnPnl.add(new JButton("TEST")); JFrame f = new JFrame("TEST"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.getContentPane().setLayout(new BorderLayout()); f.getContentPane().add(btnPnl); f.pack(); f.setSize(800, 600); f.setVisible(true); System.out.println("End debug test!"); } }); } } The button first appers in the up-left, and then it goes to the center. Please, note that I'm understand, not just correct. Is it a java bug? --update OK, so the SSCCE don't show the problem with you that tried till now. Maybe it's my computer performance problem. But this don't answer the question, I still think Java Swing is creating new threads for make the layout behind the scenes.

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  • C# A simple Hangman game

    - by Radostin Angelov
    I'm trying to create a simple Hangman game and i have gotten so far, to make it read all words from a text file, but I don't know how to make the code work for every single word. I have another project, working with 3/4 words but with repeating nested if statements. I want to make it as shorter as possible. This is the code i have so far : using System; using System.Linq; class Program { static void Main() { string[] words = System.IO.File.ReadAllLines(@"C:\Users\ADMIN\Desktop\Letters\Letters.txt"); int LengthOfArray = words.Length; Random rnd = new Random(); int random = rnd.Next(1, 3); char[] letters = words[random].ToCharArray(); bool WordIsHidden = true; char hiddenChar = '_'; char GuessedLetter = hiddenChar; var retry = true; while (retry = true) { Console.WriteLine(letters); letters = GuessedLetter.ToString().ToCharArray(); for (int i = 1; i <= LengthOfArray; i++) { Console.Write("{0} ", GuessedLetter); } Console.WriteLine("Enter a letter!"); char letter = char.Parse(Console.ReadLine()); if (words[random].Contains<char>(letter)) { WordIsHidden = false; GuessedLetter = letter; Console.Write(letters); } else { if (WordIsHidden == true) { Console.Write("You guessed wrong!"); } } } } } Also I'm trying to make the game show each letter, the user has guessed on it's corresponding position, but now the letter is one line higher than the rest of the word and it's not in it's right position. Edited: Here is the result : cat ___Enter a letter! a __ aaaEnter a letter! t aa tttEnter a letter! IF anyone have a clue for where does this come from and how can I fix it, any help will be greatly appreciated.

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  • VIM Replace word with contents of paste buffer?

    - by plong
    I need to do a bunch of word replacements in a file and want to do it with a vi command, not an EX command such as :%s///g. I know that this is the typical way one replaces the word at the current cursor position: cw<text><esc> but is there a way to do this with the contents of the unnamed register as the replacement text and without overwriting the register?

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  • Add effects to datagrid invalidate

    - by MooCow
    Is it possible to add an effect to a datagrid when I call invalidatelist to update the data? If it can be done, can the effects be selectively applied to only certain cells in the grid? The grid is showing an array with some nested array in it. I'm using an int counter to keep track of the nested array element position. When the counter is advanced, I tell the grid to update using invalidatelist.

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  • appending images into center inside div using jquery

    - by text
    I am using crossSlide jquery plugin for my slideshow. My container is bigger than the images inside it so the tendency of the images is positioned into left. Is there a way to position them centered to the container? here's the sample site using crosSlide since i don't have a website to upload my sample page. http://www.hashbangcode.com/blog/crossslide-jquery-plugin-test-348.html

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  • Java: Swap elements in LinkedList class

    - by Algorist
    Hi, I want to maintain order of the elements being added in a list. So, I used a linkedlist in Java. Now I want to be able to swap two elements in the linked list. First of all, I cannot find an elementAt method for linked list. Also, there is no way to add element at a specified position. Thank you.

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  • As a programmer, what are some telltale signs that you're about to get fired or laid off?

    - by plaureano
    If you have ever been fired from a job, did you notice anything different about the behavior of your peers or upper management just before your termination? What are some common signs to look for among your coworkers and project manager(s) that would indicate your position is severely at risk? EDIT: My instincts were right, and I opted to resign rather than face termination. I guess when you have that "gut feeling" that something is about to happen, it's a strong sign that you should be heading for the exit...

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  • View is moved 3 pixels

    - by Jakub
    Hello, In my app I move the table view (in order to make the text fields visible when the keyboard appears). The view is looks following: This is the code I use for resizing the view and moving it up: static const NSUInteger navBarHeight = 44; CGRect appFrame = [[UIScreen mainScreen] applicationFrame]; tableView.frame = CGRectMake(0, navBarHeight, appFrame.size.width, appFrame.size.height-navBarHeight-216); //216 for the keyboard NSIndexPath *indPath = [self getIndexPathForTextField:textField]; //get the field the view should scroll to [tableView scrollToRowAtIndexPath:indPath atScrollPosition:UITableViewScrollPositionMiddle animated:YES]; The problem is that when the view is moved up it also moves 3 pixels into right direction (it is hard to see the difference in the screenshot, but it is visible when the animation is on and I measured the difference with PixelStick tool). Here it is how it looks after the move: My analysis shows that scrolling the table does not influence the move to the right. Any ideas what is wrong in the code above that makes the view move to the right?

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  • How to set the pointer to the current row in the Datagridview in C#

    - by user286546
    I have a datagridview on the Windows Form in c#. I am updating and filling the table adapter on the cell event. The problem is that When I go to lower half of the datagrid which is not visible until I scroll down, as I click any cell, the table adapter is filled and updated and the pointerpoints to the very first row. Any suggestion on how to fix it. I have a ideas to record the top row of the datagridview that is visible and set the pointer to that row. But how to do it?

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  • Custom CSS menu, "Active" tab remains on 'Home' not the actual page

    - by user1690254
    I created this custom css menu, but when switching tabs, the "Active" tab design remains on the 'Home' link on the menu, rather than the actual page I'm on. Any idea how I an fix this? Here's the code: .menu{margin:0 auto; padding:0; height:30px; width:100%; display:block; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') repeat-x;} .menu li{padding:0; margin:0; list-style:none; display:inline;} .menu li a{float:left; padding-left:15px; display:block; color:rgb(255,255,255); text-decoration:none; font:12px Verdana, Arial, Helvetica, sans-serif; cursor:pointer; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 0px -30px no-repeat;} .menu li a span{line-height:30px; float:left; display:block; padding-right:15px; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 100% -30px no-repeat;} .menu li a:hover{background-position:0px -60px; color:rgb(255,255,255);} .menu li a:hover span{background-position:100% -60px;} .menu li a.active, .menu li a.active:hover{line-height:30px; font:12px Verdana, Arial, Helvetica, sans-serif; background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 0px -90px no-repeat; color:rgb(255,255,255);} .menu li a.active span, .menu li a.active:hover span{background:url('http://media.datahc.com/Affiliates/43817/Brands/Image/topmenuimages.png') 100% -90px no-repeat;} <ul class="menu"> <li><a href="http://caribbeantl.com/"; class="active"><span>Home</span></a></li> <li><a href="http://caribbeantl.com/hotels/"><span>Testing post</span></a></li> </ul>

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  • richtextbox scrollbar event

    - by cru3l
    i'm create user control with richtextbox and i need to catch event, when user change RTB scrollbar position. I think i need use winAPI for that. Maybe someone already solved this problem and have an example of code thanks

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  • How to achieve jQuery scrolling/overlay effect (video in description)

    - by waffl
    I have two columns. The left column contains text of dynamic lengths. The right column is of fixed height and will contain a set of images selected at random per page load. I am trying to create an effect where while the user scrolls, the Image 2 scrolls above Image 1. When it reaches the top, the Image 1 begins to scroll up until it disappears, then Image 3 comes in and repeats the process. As this is rather confusing, I made a short video describing the desired effect. Video - MP4 I have begun trying to get it working in this jsbin but am at a loss for when the user scrolls back down and also when more images are required. I am thinking my current path is not the right direction. I'm thinking that employing something like jQuery waypoints is more the direction I should be pursuing?

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  • Adobe AIR canvas dimensions messed up

    - by Nikhil
    I'm messing about with Canvas in Adobe Air. But their seems to be some issue with the mouse coordinates. The more I click towards the right, the difference between the draw position and actual click increases. My code is Wb.canvas.fillRect(evt.clientX-canvasTag.clientX, evt.clientY-canvasTag.clientY, 50, 50);

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  • IE6 positioning issue

    - by Ralph The Mouf
    Here is the CSS...how can I make it layout as it should in IE6? .AuthorName_Pic { width:186px; position:absolute; right:0px; bottom:-120px; padding:20px 10px 20px 15px; margin:20px 0px 0px 0px; background:url(images/ThumbDark.jpg) no-repeat; z-index:100; }

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