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• Android ListView Item Visibility

  - by user1478754

  I'm trying to create a screen that displays multiples items. For this, I've created a listview but I'm not sure how to approach how to add/remove items from it. Since I'm using custom listview items, I've created my own listadapter but now I need a way to add items on a button click. Is there a way to create listview that can take an indefinite amount of items (instead of passing it in an fixed length array of View objects)? Also what's the best way to remove items from listviews? setVisibility?

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• how to google a symbol keyword like "$?"

  - by ZhengZhiren

  i saw a trick in a book: in a linux shell, we can use &? to get the return value of a command. For example,we run a command,if it exit normally, the return value is 0. And then we type $?,we will get 0 in the screen. i want to google this kind of usage, so i have to type these two symbol $? in the search blank.But the search engine just return nothing to me... i have looked at the google help page, but still can't find a solution. so my question is: how can i search with this kind of keyword. or if you can give me some advise of the usage of $? or sort of thing, that will be also appreciated.

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• How do I make a project built into a downloadable Cd?

  - by Dcurvez

  hi all I just got finished making my first project in visual studio 2008. what I want to do is put it on a CD and let another person run it. I went to the clean and build and publish and all went well. When I took it to my friends house to put it on her computer..i never got a "download" and "install" screen. We were able to see it and use it on her computer (which is good cuz she doesnt have Visual on her machine) but I wanted her to be able to use it without keeping the CD in the drive. Is there some setup or something I have to do to make my program download and install? The whole shibang was all done with starting a new windows application..and then just adding windows forms to the original. Thanks :)

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• Android preferencesActivity setDefaultValue() not working?

  - by Nick

  I'm extending PreferenceActivity for my settings screen. In this preference activity i have a couple of preferences one of which is custom made. The problem is as follows: in this custom preference (which extends from ListPreference) i want to be able to set the default value, so i override the setDefaultValue() method. In this method i do some parsing so it'll take the correct value. When i'm trying to read this value with the getValue() function it just returns null. So i figured, what happens when i just put some hardcoded value in there (you know, maybe i did something wrong, wouldn't be the first time). Well, i still get null back. Any ideas what i'm doing wrong? Edit: Setting the defaultValue in the xml file isn't really an option because the values aren't known until i retrieve them. I made a workaround: When app is started for the first time: get data Set the values in the preference. This way i set the default preference when i'm collection the data

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• Make an animation using a loop

  - by Michael Quiles

  I need help making this loop to move a label move smoothly across the screen using count for the animation (its required). The labels location is currently in location 0,0 I'd like to make it go in a square right - down - left - back to its original position how can I accomplish this ? please give me an example using my code below. Thank You in advance. private void xAnimeTimer_Tick(object sender, EventArgs e) { int count; this.xAnimTimer.Stop(); for (count = 0; count <= 100; count++) { this.xAnimLabel.Left = count; } for (count = 0; count <= 150; count++) { this.xAnimLabel.Top = count; }

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• How to redirect on apache after running a script through cgi

  - by Yotam

  I have an ubuntu machine which I have installed apache on. I want to use a web page to run some simple shell script through cgi and then go back to my home screen. I also want to the go-back step to be automatic. I have set a redirect in my apache.conf which works fine but the script doesn't run at all. Is there a way to run the script and only then apply the redirect? Comment: I think this may be the answer but I'm not sure.

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• Allow users to enter a variable length list of items in asp.net form

  - by EJB

  I need to let my users enter a variable length list of items into something that looks like a grid view (or a series of standard text boxes stacked vertically). Each item could be a few characters or a few hundred characters long, and I just want them to enter a "sentence", and then tab to the next row, and always having another blank one ready to go at the bottom of the list. I don't want to save any data to my SQL Server DB until they enter the entire list and then click on a "save all" button. When they hit the "save all" button they will be given a preview screen where the data will be presented as standard HTML ordered list. If they confirm/save, then each row of the grid will then be saved as a separate row into my SQL Server database (with an index to remember the order). What ASP.Net (or Jquery/javascript) UI control would be the best to use in this situation?

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• Create web page launcher, losing focus

  - by user356131

  I have created a php webpage. I now want to create a launcher application in android phone, it simply opens the browser with the url "http://<mywebsite>/m". I use uri intent to launch the browser in onCreate function. public void onCreate(...) { .... startActivity(new Intent(Intent.ACTION_VIEW, new Uri(http://<mywebsite>/m))); ... } I execute this program in my G1 phone (Cyan Mod 5). However, when I click the "Home" key, and then re-enter my application through Task list, I lose focus for my last started browser, and the screen blank Any suggestion?! Should I need any code in onResume function to re-focus my web!?

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• Way to check for foreign key references before deleting in MySQL?

  - by Chad Johnson

  I'm working with a content management system, and users are prompted with a confirmation screen before deleting records. Some records are foreign key referenced in other tables, and therefore they cannot be deleted. I would like to display a message beside a given record if it has foreign key references. To know whether I should display the message for a record, I could just query the referencing table and see if there are references. But the problem is, there are about a dozen tables with records potentially referencing this record, and a lookup could take a "long" time. Is there an easy way to tell whether the record is delete-ready (ie. has no foreign key references)?

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• Document width calculated via Javascript is different in Firefox compared to other browsers

  - by Scarpelius

  I have a problem with retrieving the current page document width from Mozilla Firefox. While the rest of the browsers report the correct width of the document, Firefox reports a smaller one (example: at screen resolution of 1920x1080 IE, Chrome and Safari reports 1920 while Firefox reports 1903). I use document width in $(document).ready(function() { ... }); to reposition a div element. Funny this is that after using alert() inside this function, the element reposition correctly, though the document size is still smaller than other browsers.

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• scrolling in both directions at the same time...like in many games

  - by Angel

  Hi, I want to create a game which has a grid view...like 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 1 5 6 7 8 9 3 1 3 2 4 6 7 8 9 1 4 6 3 1 5 6 8 9 1 4 6 4 4 7 8 1 5 7 8 8 what i want to do is on my screen it should display only a part of it that is 1 2 3 4 1 2 3 4 1 5 6 7 Rest all should be hidden and scrollable in both the directions at the same time (diagonally) Please give inputs.. Should i use canvas and over it gridView or simply a grid view.. . If yes then how? Thanks

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• How to open an html file using the default file handler and to give the window a name (i.e. target)?

  - by paul

  I am writing a warm-up script for a SharePoint server. The idea is to call stsadm and then open an html file containing iframes which touch all the key web pages in my portal. So far so good. The problem is that each time the script is run, a new browser window is opened and I end up with a screen full of browsers. The first idea was to close the browser after 10 minutes or so. This would be easy to do except that Javascript is disabled when an html file is opened from the file system. I then thought I might be able to open the file and set it in a named window (target) which would be reused each time the script runs but I haven't found any way to do this. Does anyone have any ideas? Either to force JS to run or to set the window name or another solution? Thanks.

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• Android camera being landscaped in some devices

  - by nala4ever

  Im new to Android and I tried a tutorial for camera API. The tutorial works fine. When I use HTC desire I can see the camera view in both portrait and landscape, but when I use Samsung Galaxy I get a the camera view only in a landscaped view. I tried the following code to rotate the camera view as well.. Camera.Parameters parameters = camera.getParameters(); parameters.setRotation(90); then the camera doesn't work as expected. (screen splits into 4 and not clear). Does anyone have an idea for this issue ? Thanks.

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• fade effect in blackberry (os 4.5 ) application.

  - by Vivart

  in my blackberry application i have to create a effect in which fullscreen bitmap is slowly disappearing and ui screen is coming up. protected void paint(Graphics g) { g.setGlobalAlpha(globalAlpha);//starting value of globalAlpha is 255. g.drawBitmap(0, 0, getWidth(), getHeight(), _bitmap, 0, 0); g.setGlobalAlpha(255 - globalAlpha); globalAlpha--; super.paint(g); } This code is just for giving demo that what i want. super.paint(g) is calling 255 times because of that its a poor code. in one timer task i am calling invalidate(); So any suggestions how to implement this?

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• Can I submit iPhone applications with same Icon.png but differnt bundle name

  - by AJ

  Can some one tell me if it is possible to submit two different iphone applications which has same Icon.png but have a different bundle name? I am working on a travel guide app that is targeted for different cities. I want the users of different cities to download the app as per their cities. So I want to submit different apps for different cities(3 in my case). User can also purchase any of these cities through in-app purchase. In that case the new purchased city would be unlocked in the app. Here is my thing. I want the same icon for all the three apps. I can do away with different names for app store and bundle(home screen icon name). But I am not sure if apple would approve/reject this app. Can someone enhance this blur picture I have?

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• Why is my background image not displaying properly in IE7?

  - by JAG2007

  Screenshot of the issue: here Webpage in Question: http://cure.org Offending browser: Internet Explorer 7 You'll notice from the screenshot, or if you view this site in IE7, that the background image is not displaying for the content div (#modal-inner-content). Strangely, the image displays in the other divs where it is used (since it's a sprite, I'm using that same image for #modal-top-border and #modal-btm-border). In all other browsers it displays properly, and even in IE8. I cannot seem to find what CSS rule (or lack thereof) I may be using that IE7 is choking on. NOTE: in order to get the modal screen, just click the link at the very top banner of the page that says "login to your CURE account

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• Method for demonstrating iPad application in online meetings

  - by competent_tech

  We have recently developed an iPad application and now need to start demonstrating it to customers and prospects as part of our overall product suite during webinars. As part of our Agile methodology, we also need to periodically review the application with key customers without having to distribute it since the application is not a standalone application and requires a connection to web services installed at each customer site. We have searched high and low for any solution that doesn't involve rooting the device but have been unable to find one. The most common suggestion seems to be to point a webcam at the device, but that comes across as very unprofessional. I know that there are VGA out adapters that can be plugged into the iPad and we have used these to present through a projector when the customer is physically present, but this is a relatively rare occurrence. Perhaps there are solutions that we are unaware of that can be used to send VGA output back into a desktop device for screen sharing?

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• Can I subscribe to window-docking events in windows 7 from C#

  - by www.mortenbock.dk

  Hi. I am wondering if it is possible to create an application that could receive a notification when any other application/window is docked with the new windows 7 docking feature (f.ex. Winkey + left arrow) The purpose of my application would be to set up custom rules for certain windows. So for example if I am using Chrome and I press the Win+LEFT keys, then my application would receive a notification, and would be able to say that the window should not resize to 50% of the screen, but should use 70%. I am not very familiar with writing windows applications (mostly do web), so any pointers at how this might be achieved are very welcome. Thanks.

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• Objective C: Using UIImage for Stroking

  - by SeongHo

  I am trying to apply a texture for my brush but i'm really having a hard time figuring how it is done. Here's the image of my output. I used an UIImage that just follows the touch on the screen but when i swipe it faster the result is on the right side "W", and on the left side that's the result when i swipe it slow. i tried using the CGContextMoveToPoint and CGContextAddLineToPoint i don't know how apply the texture. Is it possible to use UIImage for the stroke texture? Here's my code UIImage * brushImageTexture = [UIImage imageNamed:@"brushImage.png"]; [brushImagetexture drawAtPoint:CGPointMake(touchCurrentPosition.x, touchVurrentPosition.y) blendMode:blendMode alpha:1.0f];

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• Is it possible to launch an Android Activity from an AlertDialog?

  - by YYY

  I am trying to create a small pop-up in my Android application to let the user choose from one of many items, ala a ListView. I am hoping to make it show up as a translucent box that overlays on the screen, as opposed to completely occupying it like Activities usually do. One technique for doing this that I've heard is possible is to launch an Activity in an AlertDialog box. This would be perfect - it's the ideal size and has a lot of the mechanical properties I'm looking for, but I'm totally unable to find any more specifics of this technique. Is this possible? And if not, what is the preferred way of accomplishing something like this?

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• Is there a transformation matrix that can scale the x and/or y axis logarithmically?

  - by Dave M

  I'm using .net WPF geometry classes to graph waveforms. I've been using the matrix transformations to convert from the screen coordinate space to my coordinate space for the waveform. Everything works great and it's really simple to keep track of my window and scaling, etc. I can even use the inverse transform to calculate the mouse position in terms of the coordinate space. I use the built in Scaling and Translation classes and then a custom matrix to do the y-axis flipping (there's not a prefab matrix for flipping). I want to be able to graph these waveforms on a log scale as well (either x axis or y axis or both), but I'm not sure if this is even possible to do with a matrix transformation. Does anyone know if this is possible, and if it is, what is the matrix?

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• Operations on 64bit words in 32bit system

  - by Vilo

  I'm new here same as I'm new with assembly. I hope that you can help me to start. I'm using 32bit (i686) Ubuntu to make programs in assembly, using gcc compiler. I know that general-purpose-registers are 32bit (4 bytes) max, but what when I have to operate on 64 bit numbers? Intel's instruction says that higher bits are stored in %edx and lower in %eax Great... So how can I do something with this 2-registers number? I have to convert 64bit dec to bin, then save it to memory and show on the screen. How to make the 64bit quadword at start of the program in .data section?

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• What is the best way to make a game timer in Actionscript 3?

  - by Nuthman

  I have built an online game system that depends on a timer that records how long it took a player to complete a challenge. It needs to be accurate to the millisecond. Their time is stored in a SQL database. The problem is that when I use the Timer class, some players are ending up getting scores in the database of less than a second. (which is impossible, as most challenges would take at least 11 seconds to complete even in a perfect situation.) What I have found is that if a player has too many browser windows open, and/or a slow computer, the flash game slows down actually affecting the timer speed itself. The timer is 'spinning' on screen so you can physically see the numbers slowing down. It is frustrating that I cannot just open a second thread or do something to allow flash to keep accurate time regardless of whatever else is going on in the program. Any ideas?

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• Snapping elements / conditional layouts

  - by Felix

  Sorry for the extremely bad title, I have no other idea what to call this question. What I'm trying to do is this: have a RelativeLayout which has two children: one with layout_centerInParent="true" one with layout_alignParentBottom="true" However, when the device is in landscape mode, element (1) appears slightly over or under element (2). But, element (1) has enough space above it to appear above element (2). How could I make the layout so that if the screen is too small to center element (1) and make both elements not overlap, then align element (1) above (as in layout_above) element (2)?

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• Animation with CGPoint in for loop

  - by user1066524

  I'm trying to do an animation where when a person clicks from point A to Point B on screen the object should slowly slide straight across (horizontally) from point A to Point B. I tried doing a for loop with something like: for (CGFloat i=previousPoint.x; i <= newPoint.x; i++){ [UIView animateWithDuration:10 delay:0 options:nil animations:^ { [magnifier removeFromSuperview]; magnifier = [[MagnifierView alloc] init]; CGPoint np = {i, newPoint.y}; magnifier.viewToMagnify = imageView; magnifier.touchPoint = np; [imageView addSubview:magnifier]; [magnifier setNeedsDisplay]; } completion:^(BOOL finished) { }]; } but for some reason it is moving it way up and then eventually to point B. sort of in a weird curve. how can I do this correctly?

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