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  • Android ListView scrolling to top

    - by aandroid
    Hi, I have a ListView with custom rows. When any of these rows is clicked, the ListView's data is regenerated. I'd like the list to scroll back to the top when this happens. I initially tried using setSelection(0) in each row's OnClickListener to achieve this but was unsuccessful (I believe because the ListView loses its scroll position when its data is invalidated - so my call to setSelection is undone. I still don't understand how the ListView decides where to scroll to after invalidation, though). The only working solution I know of was given by Romain Guy here: http://groups.google.com/group/android-developers/browse_thread/thread/127ca57414035301 It involves (View.post)ing the call to _listView.setSelection(0). I found this to perform quite poorly. The newly generated list shows up with it's scroll location unchanged and there is a considerable delay before it scrolls back to the top. Is there any better way to achieve this functionality? Any help would be much appreciated. Thanks!

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  • SilverLight 3.0 DataGrid LoadingRow Event

    - by Asim Sajjad
    Following are my Question regarding the LoadingRow event of the Datagrid When will it fires after the Row is bound to the data or after that. As if you debug the Silverlight application then of first execution if you type following code ((System.Windows.Controls.TextBlock)(((System.Windows.Controls.ContentControl)(((DataGridRow)e.Row).Cells[1])).Content)).Text if will return empty string but if your datagrid has scroll (which is in my case , my datagrid has scroll), if you scroll down then the LoadingRow firs again and this time it will return Text on that cell?? why it is not return text on first time and return on second time when i press the scroll bar ??? If I paste above code in the cs file then it will return error 'System.Windows.Controls.DataGridRow' does not contain a definition for 'Cells' and no extension method 'Cells' accepting a first argument of type 'System.Windows.Controls.DataGridRow' could be found (are you missing a using directive or an assembly reference?) Can any one help me in these question thanks in advance,

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  • Jquery, Jcarousel smooth infinite scrolling

    - by nharry
    Hi all, I am using jcarousel to auto scroll some images. I would like to know how to make them scroll in one fluid scroll with no pauses or stops. Currently there is a pause and then it scrolls again. If I am not making myself clear then ask and I will try to explain a little better. This is the code: jQuery(document).ready(function() { jQuery('#mycarousel').jcarousel({ auto: 1, wrap: 'last', vertical: true, animation: 5000 });

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  • How to use drag and drop within a UIScrollView

    - by user249488
    I am trying to drag and drop UIViews within a UIScrollView. I'd like the UIScrollView to scroll if I drag a UIView so that it intersects the top or bottom of the ScrollView. If it touches the top, it should scroll up. If it touches the bottom, it should scroll down. Once the UIView is moved such that it is no longer intersecting the top or bottom, the scrolling should stop. The first approach I tried was to start an NSTimer whenever I detected that the UIView intersected with the top or bottom of the scrollview. The timer would scroll the UIScrollView bit by bit until it was invalidated. This resulted in very jerky scrolling, since there is no way to predict when the timers will fire. My current approach is to simply scroll all the way to the top or bottom of the ScrollView, like this: [UIView beginAnimations:nil context:NULL]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAnimationDuration:1.0]; [self.parentScrollview setContentOffset:newOffset animated:NO]; [UIView commitAnimations]; In order to stop scrolling, I try to determine the position of the touch in the touchesMoved: delegate, and use that to calculate the contentOffset to use for the scrollView. The problem is, when I try to get the location in the view via [[touches anyObject] locationInView:self], I get the final end location, rather than the current location. I'm guessing that's because the contentOffset on the scrollView is set immediately. Is there a way to get the actual location of a touch in a situation like this? Or any other way to set the contentOffset when I interrupt the scrolling animation?

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  • UITableView scrolling to specific position

    - by Dave
    I am using iPhone SDK 3.1.3. I have a UITableViewController which gets data from another controller. The tableview is added as a subview to the mainview but the frame is set so that it is not visible. The tableview frame is updated and made to slide over the main view by tapping on a button. The table view appears and i scroll to the last row. if i select the last row, i reload the table with more data. The table gets updated with more data. everything works fine except the scroll position is always the top. I need the scroll position to be the last row that I clicked on to load more data. I save the scroll position and call the following code after it loads more data. It executes without issues but the scroll position is always the top. [theTableView scrollTRowAtIndexPath:[NSIndexPath indexPathForRow:savedScrollPosition inSection:0] atScrollPosition:savedScrollPosition animated:NO]; The above seems to have no effect. ViewWillAppear: ViewDidAppear: does not fire and I am told that if the view controller is instantiated in code, which is the case, these don't fire.

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  • Correct handling of OnMouseWheel events in Ext-GWT

    - by Kevin Loney
    I'm trying to figure out which property of BoxComponentEvent will tell me if the generated OnMouseWheel event was a scroll-up or scroll-down event. I have output the values of all the properties BoxComponentEvent exposes; and all of them (with the exception of the coordinates at which the event took place) stay the same regardless. Google and the Ext-GWT docs have been pretty useless for providing a concrete example. public class MyPanel extends ContentPanel { // ... public MyPanel() { addListener(Events.OnMouseWheel, new Listener<BoxComponentEvent>() { public void handleEvent(BoxComponentEvent be) { // What happens here to distinguish scroll-up and scroll-down? } }); } protected void afterRender() { super.afterRender(); el().addEventsSunk(Events.OnMouseWheel.getEventCode()); } // ... }

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  • AutoScroll issues with custom layout on Windows Forms application

    - by Lurker Indeed
    I've implemented a basic custom layout engine in Windows Forms that does control sizing and positioning. I was hoping to allow the AutoScroll features to work untouched, but any time I have enough controls on the screen to require a scroll bar, some of the layout events that get fired (i.e, a rich text box that expands the height as it types) not only fire the layout events, but they force the scroll bar back at (0,0). Do I have any options besides looking at the scroll position and positioning the controls manually based on that?

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  • Track "commands" send to WPF window by touchpad (Bamboo)

    - by Christian
    Hi, I just bought a touchpad wich allows drawing and using multitouch. The api is not supported fully by windows 7, so I have to rely on the build in config dialog. The basic features are working, so if I draw something in my WPF tool, and use both fingers to do a right click, I can e.g. change the color. What I want to do now is assign other functions to special features in WPF. Does anybody know how to find out in what way the pad communicates with the app? It works e.g. in Firefox to scroll, like it should (shown on this photo). But I do not know how to hookup the scroll event, I tried a Scrollviewer (which ignores my scroll attempts) and I also hooked up an event with the keypressed, but it does not fire (I assume the pad does not "press a key" but somehow sends the "scroll" command direclty. How can I catch that command in WPF? Thanks a lot, Chris [EDIT] I got the scroll to work, but only up and down, not left and right. It was just a stupid "listbox in scrollviewer" mistake. But still not sure about commands like ZOOM in (which is working even in paint).. Which API contains such things? [EDIT2] Funny, the zoom works in Firefox, the horizontal scrolling does not. But, in paint, the horizontal scrolling works... [EDIT 3] Just asked in the wacom forum, lets see about vendor support reaction time... http://forum.wacom.eu/viewtopic.php?f=4&t=1939 Here is a picture of the config surface to get the idea what I am talking about: (Bamboo settings, I try to catch these commands in WPF)

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  • How to disable scrolling the document body?

    - by Manohar
    I have a HTML which has lot of content and a vertical scrollbar appears as soon as the HTML is loaded. Now from this HTML a full screen IFRAME is loaded. The problem is when the IFRAME is loaded, the parent scrollbar still persists, I want to disable the scrollbar when the Iframe is loaded. I tried: document.body.scroll = "no", it did not work with FF and chrome. document.style.overflow = "hidden"; after this I was still able to scroll, and the whole iframe would scroll up revealing the parent HTML. My requirement is, when the IFRAME is loaded, we should never be able to scroll the entire IFRAME if the parent HTML has a scrollbar. Any ideas?

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  • Reusing XSL template to be invoked with different relative XPaths

    - by meomaxy
    Here is my contrived example that illustrates what I am attempting to accomplish. I have an input XML file that I wish to flatten for further processing. Input file: <BICYCLES> <BICYCLE> <COLOR>BLUE</COLOR> <WHEELS> <WHEEL> <WHEEL_TYPE>FRONT</WHEEL_TYPE> <FLAT>NO</FLAT> <REFLECTORS> <REFLECTOR> <REFLECTOR_NUM>1</REFLECTOR_NUM> <COLOR>RED</COLOR> <SHAPE>SQUARE</SHAPE> </REFLECTOR> <REFLECTOR> <REFLECTOR_NUM>2</REFLECTOR_NUM> <COLOR>WHITE</COLOR> <SHAPE>ROUND</SHAPE> </REFLECTOR> </REFLECTORS> </WHEEL> <WHEEL> <WHEEL_TYPE>REAR</WHEEL_TYPE> <FLAT>NO</FLAT> </WHEEL> </WHEELS> </BICYCLE> </BICYCLES> The input is a list of <BICYCLE> nodes. Each <BICYCLE> has a <COLOR> and optionally has <WHEELS>. <WHEELS> is a list of <WHEEL> nodes, each of which has a few attributes, and optionally has <REFLECTORS>. <REFLECTORS> is a list of <REFLECTOR> nodes, each of which has a few attributes. The goal is to flatten this XML. This is the XSL I'm using: <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions"> <xsl:output method="xml" encoding="UTF-8" indent="yes" omit-xml-declaration="yes" xml:space="preserve"/> <xsl:template match="/"> <BICYCLES> <xsl:apply-templates/> </BICYCLES> </xsl:template> <xsl:template match="BICYCLE"> <xsl:choose> <xsl:when test="WHEELS"> <xsl:apply-templates select="WHEELS"/> </xsl:when> <xsl:otherwise> <BICYCLE> <COLOR><xsl:value-of select="COLOR"/></COLOR> <WHEEL_TYPE/> <FLAT/> <REFLECTOR_NUM/> <COLOR/> <SHAPE/> </BICYCLE> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template match="WHEELS"> <xsl:apply-templates select="WHEEL"/> </xsl:template> <xsl:template match="WHEEL"> <xsl:choose> <xsl:when test="REFLECTORS"> <xsl:apply-templates select="REFLECTORS"/> </xsl:when> <xsl:otherwise> <BICYCLE> <COLOR><xsl:value-of select="../../COLOR"/></COLOR> <WHEEL_TYPE><xsl:value-of select="WHEEL_TYPE"/></WHEEL_TYPE> <FLAT><xsl:value-of select="FLAT"/></FLAT> <REFLECTOR_NUM/> <COLOR/> <SHAPE/> </BICYCLE> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template match="REFLECTORS"> <xsl:apply-templates select="REFLECTOR"/> </xsl:template> <xsl:template match="REFLECTOR"> <BICYCLE> <COLOR><xsl:value-of select="../../../../COLOR"/></COLOR> <WHEEL_TYPE><xsl:value-of select="../../WHEEL_TYPE"/></WHEEL_TYPE> <FLAT><xsl:value-of select="../../FLAT"/></FLAT> <REFLECTOR_NUM><xsl:value-of select="REFLECTOR_NUM"/></REFLECTOR_NUM> <COLOR><xsl:value-of select="COLOR"/></COLOR> <SHAPE><xsl:value-of select="SHAPE"/></SHAPE> </BICYCLE> </xsl:template> </xsl:stylesheet> The output is: <BICYCLES xmlns:fn="http://www.w3.org/2005/xpath-functions" xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <BICYCLE> <COLOR>BLUE</COLOR> <WHEEL_TYPE>FRONT</WHEEL_TYPE> <FLAT>NO</FLAT> <REFLECTOR_NUM>1</REFLECTOR_NUM> <COLOR>RED</COLOR> <SHAPE>SQUARE</SHAPE> </BICYCLE> <BICYCLE> <COLOR>BLUE</COLOR> <WHEEL_TYPE>FRONT</WHEEL_TYPE> <FLAT>NO</FLAT> <REFLECTOR_NUM>2</REFLECTOR_NUM> <COLOR>WHITE</COLOR> <SHAPE>ROUND</SHAPE> </BICYCLE> <BICYCLE> <COLOR>BLUE</COLOR> <WHEEL_TYPE>REAR</WHEEL_TYPE> <FLAT>NO</FLAT> <REFLECTOR_NUM/> <COLOR/> <SHAPE/> </BICYCLE> </BICYCLES> What I don't like about this is that I'm outputting the color attribute in several forms: <COLOR><xsl:value-of select="../../../../COLOR"/></COLOR> <COLOR><xsl:value-of select="../../COLOR"/></COLOR> <COLOR><xsl:value-of select="COLOR"/></COLOR> <COLOR/> It seems like there ought to be a way to make a named template and invoke it from the various places where it is needed and pass some parameter that represents the path back to the <BICYCLE> node to which it refers. Is there a way to clean this up, say with a named template for bicycle fields, for wheel fields and for reflector fields? In the real world example this is based on, there are many more attributes to a "bicycle" than just color, and I want to make this XSL easy to change to include or exclude fields without having to change the XSL in multiple places.

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  • Autocomplete problem with scrollbar

    - by Geetha
    Hi All, I am using autocomplete with scrollbar for my textbox. Autocomplete for touch screen. I can scroll up and down using the mouse wheel but i want to Use the mouse button to scroll up or down by dragging the scroll bar. if i use mouse button it moves the focus away from the text box field. Autocomplete is working only when using the keyboard not with the user defined keys. Geetha

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  • RadioButton and EditText inside ListView problem

    - by Sujit
    Hi I want to implement RadioButton and EditText inside ListView. I am using ArrayAdapter to set the List.But the problem is that when i am selecting a RadioButton and scroll down the list and again scroll up the the Radiobutton which had been selected getting unselected.Same with the EditText.The text getting removed when scroll up. hope you can understand........thanks in advance...

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  • Basic Scolling Question

    - by localgamer
    Hey guys, im pretty new to android platform and have a really simple question. Im putting buttons as layouts with text boxes, but im running out of room. How would i make it possible for the user to scroll down to view more buttons and stuff. For example, if i have 6 buttons, and 3 are in the field of view, i wanna be able to scroll with my finger and be able to see those buttons as I scroll. Thanks for the help guys -Localgamer

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  • Jscrollpane ajax wont load in IE

    - by goetzs
    I am loading a custom scroll panel in to jScrollpane using their AJAX loading script, it works in everything except IE, any ideas on what to do, no errors show up. //////////////////////////////////////////////////////////// ////////// CODE CREATE CUSTOM SCROLL BAR //////////////// //////////////////////////////////////////////////////////// $(function() { var api = $('.scroll-pane').jScrollPane( { showArrows:true, maintainPosition: false } ).data('jsp'); $(document).ready(function() { api.getContentPane().load( 'blank.html',// function() { api.reinitialise(); } ); return false; } ); }); $(function() { var settings = { showArrows: false, autoReinitialise: true }; var pane = $('.scroll-pane') pane.jScrollPane(settings); var contentPane = pane.data('jsp').getContentPane(); var i = 1; });

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  • GridView items are displaying the wrong drawables sometimes.

    - by originalbryan
    I've implemented a GridView based on this tutorial. It works great unless open up the search dialog or rotate the screen then scroll around. When the search dialog and virtual keyboard appear, the drawables for each of my grid items shift. I can click on them and they do what I expect, except the drawable is wrong. The same problem happens when I go into landscape mode and scroll around. If I scroll down, up, the down again, the drawables are shuffled. For better illustration, let's say I have three objects, each with an image. Obj A shows an Apple Obj B shows a Banana Obj C shows a Cantaloupe When the shift occurs I end up with: Obj A shows an Cantaloupe Obj B shows a Banana Obj C shows a Apple The problem isn't consistent between the two causes (search dialog and screen rotate n' scroll), but each cause itself is consistent. Scrolling around repeatedly reveals a pattern as does the search dialog appearing. How can I stop this from happening?

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  • NES Programming - Nametables?

    - by Jeffrey Kern
    Hello everyone, I'm wondering about how the NES displays its graphical muscle. I've researched stuff online and read through it, but I'm wondering about one last thing: Nametables. Basically, from what I've read, each 8x8 block in a NES nametable points to a location in the pattern table, which holds graphic memory. In addition, the nametable also has an attribute table which sets a certain color palette for each 16x16 block. They're linked up together like this: (assuming 16 8x8 blocks) Nametable, with A B C D = pointers to sprite data: ABBB CDCC DDDD DDDD Attribute table, with 1 2 3 = pointers to color palette data, with < referencing value to the left, ^ above, and ' to the left and above: 1<2< ^'^' 3<3< ^'^' So, in the example above, the blocks would be colored as so 1A 1B 2B 2B 1C 1D 2C 2C 3D 3D 3D 3D 3D 3D 3D 3D Now, if I have this on a fixed screen - it works great! Because the NES resolution is 256x240 pixels. Now, how do these tables get adjusted for scrolling? Because Nametable 0 can scroll into Nametable 1, and if you keep scrolling Nametable 0 will wrap around again. That I get. But what I don't get is how to scroll the attribute table wraps around as well. From what I've read online, the 16x16 blocks it assigns attributes for will cause color distortions on the edge tiles of the screen (as seen when you scroll left to right and vice-versa in SMB3). The concern I have is that I understand how to scroll the nametables, but how do you scroll the attribute table? For intsance, if I have a green block on the left side of the screen, moving the screen to right should in theory cause the tiles to the right to be green as well until they move more into frame, to which they'll revert to their normal colors.

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  • UIDatePicker inside UIScrollView with pages

    - by Jason Martens
    I have a UIScrollView with 2 pages, and I can scroll horizontally between them. However, on one of my pages, I have a UIDatePicker, and the scroll view is intercepting the vertical touch events so I can no longer manipulate the date picker (except by clicking or tapping). Is there some way to tell the ScrollView to send the vertical touch events to the date picker, but send the horizontal touch events to the scroll view to switch pages?

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  • Fixed div once page is scrolled is flickering

    - by jasondavis
    I am trying to have an advertisement block/div that will be hald way down the page, once you scroll do the page to this point it will stick to the top. Here is a demo of what I am trying to do and the code I am using to do it with... http://jsfiddle.net/jasondavis/6vpA7/3/embedded/result/ In the demo it works perfectly how I am wanting it to be, however when I implement it on my live site, http://goo.gl/zuaZx it works but when you scroll down the div flickers in and out of view on each scroll or down key press. On my site to see the problem live it is the blokc on the right sidebar that says "Recommended Books" Here is the code I am using... $(document).ready( function() { $(window).scroll( function() { if ($(window).scrollTop() > $('#social-container').offset().top) $('#social').addClass('floating'); else $('#social').removeClass('floating'); } ); } );? css #social.floating { position: fixed; top: 0; }? My demo jsfiddle where it works correctly http://jsfiddle.net/jasondavis/6vpA7/3/ The only thing different on my live site is the div/id name is different. As you can see it is somewhat working on my live site except the flickering in and out of view as you scroll down the page. Anyone have any ideas why this would happen on my live site and not on my jsfiddle demo?

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  • Ref to map vs. map to refs vs. multiple refs

    - by mikera
    I'm working on a GUI application in Swing+Clojure that requires various mutable pieces of data (e.g. scroll position, user data, filename, selected tool options etc.). I can see at least three different ways of handling this set of data: Create a ref to a map of all the data: (def data (ref { :filename "filename.xml" :scroll [0 0] })) Create a map of refs to the individual data elements: (def datamap { :filename (ref "filename.xml") :scroll (ref [0 0]) })) Create a separate ref for each in the namespace: (def scroll (ref [0 0])) (def filename (ref "filename.xml")) Note: This data will be accessed concurrently, e.g. by background processing threads or the Swing event handling thread. However there probably isn't a need for consistent transactional updates of multiple elements. What would be your recommended approach and why?

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  • Set Caret position with JTextArea in JScrollPane

    - by Albinoswordfish
    Right now I have a JTextArea inside of a JScrollPane. For the current content it has both a vertical and horizontal scroll bar showing up. I'm trying to implement a search functionality where a user can search for a certain string and it will set the caret position to the first occurrence of that string. However it seems that JScrollPane only scrolls vertically when I set my caret position. So matching strings going off the JTextArea horizontally will completely get missed and the horizontal scroll bar won't scroll at all. I'm using the basic function setCaretPosition() for the JTextArea Does anybody have any idea why my JScrollPane isn't moving horizontally using setCaretPosition() Edit: It appears the horizontal scroll bar is scrolling but it moves so little that it's barely noticeable. I can only see the very first pixel of the character. Is there a way to have the scrollbar center (or as much as possible) to the caret position?

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  • jQuery Tools - Range Input with Mousewheel support

    - by pspahn
    I've got a nice looking horizontal scroller that uses the Range Input feature of jQ Tools. Mouse wheel scrolling support would be awesome, and I'm sure it can work, just not sure how to get it set up. I've got the generic setup: var scroll = jQuery('#scroll'); jQuery(':range').rangeinput({ speed: 0, progress: true, onSlide: function(ev, step) { scroll.css({left: -step}); }, change: function(e, i) { scroll.animate({left: -i}, "fast"); } }); The doc page ( http://jquerytools.org/documentation/toolbox/mousewheel.html ) for mousewheel gives an example: $("#myelement").mousewheel(function(event, delta) { }); But I'm not sure how this hooks in. Other tools in the package simply allow the option: mousewheel: true Unfortunately that doesn't work on range input. Any advice appreciated. Thank you.

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  • JQUERY, div with a fixed height (with a scrollbar) how to animate until it grows to no longer need a

    - by nobosh
    JQUERY, div with a fixed height (with a scrollbar) how to animate until it grows to no longer need a scroll bar? I have a div on a page with a CSS height:200px setting, which makes the DIV have a vertical scroll bar, which allows the user to scroll through a bunch of text. I would like to animate the DIV to expand in height until all content in the div is shown, meaning no more scroll bar I tried the following: $("#view-container").animate({"height": "auto"}, "slow"); but that didn't work while this does: $("#view-container").animate({"height": "1000px"}, "slow"); problem with that is the text size in the DIV is variable. Ideas? Thanks

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  • Does UIScrollView have a special content view for making the scrolling possible?

    - by mystify
    I wonder if UIScrollView has got an "hidden" subview acting as an container for the content. If I scroll a scroll view, is that content view moved up/down in the scroll view? Or is the scrolling offset applied to the bounds of that UIScrollView instance? Or: Does UIScrollView use an additional view as container, or is all content added directly to the view? The documentation doesn't tell much about wether it has a content container or not.

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