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  • Getting started with zxing on android

    - by amitlicht
    Hi I'm trying to add zxing to my project (add a button which calls the scanner upon press). I found this: http://groups.google.com/group/android-developers/browse_thread/thread/788eb52a765c28b5 and of course the zxing homesite: http://code.google.com/p/zxing/, but still couldn't figure out what to include in the project classpath to make it all work! as for now, I copied the classes in the first link to my project (with some package name changes), and it runs but crashes after pressing the button and trying to install the barcode scanner. some code: private void setScanButton(){ Button scan = (Button) findViewById(R.id.MainPageScanButton); scan.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { IntentIntegrator.initiateScan(MyActivity.this); } }); } resulting error (from logcat): 06-13 15:26:01.540: ERROR/AndroidRuntime(1423): Uncaught handler: thread main exiting due to uncaught exception 06-13 15:26:01.560: ERROR/AndroidRuntime(1423): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=market://search?q=pname:com.google.zxing.client.android } Ideas?

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  • BlazeDS - Conversion from ArrayList <BaseClass> on java side to Actionscript

    - by user294280
    Hi, So we have a java class with two ArrayLists of generics. It looks like public class Blah { public ArrayList<ConcreteClass> a; public ArrayList<BaseClass> b; } by using [ArrayElementType('ConcreteClass')] in the actionscript class, we are able to get all the "a"s converted fine. However with "b", since the actual class coming across the line is a heterogeneous mix of classes like BaseClassImplementation1, BaseClassImplementation2 etc, it gets typed as an object. Is there a way to convert it to the specific concrete class assuming that a strongly typed AS version of the java class exists on the client side thanks for your help! Regis

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  • How do I aggregate results from an Adjacency list using PHP's SPL

    - by Stephen J. Fuhry
    I've tried using nested sets, and they become very difficult to maintain when dealing with multiple trees and lots of other complications.. I'd like to give PHP's SPL library a stab at this (btw, we are PHP 5.3, MySQL 5.1). Given two datasets: The Groups: +-------+--------+---------------------+---------------+ | id | parent | Category Name | child_key | +-------+--------+---------------------+---------------+ | 11133 | 7707 | Really Cool Products| 47054 | | 7709 | 7708 | 24" Monitors | 57910 | | 7713 | 7710 | Hot Tubs | 35585 | | 7716 | 7710 | Hot Dogs | 00395 | | 11133 | 7707 | Really Cool Products| 66647 | | 7715 | 7710 | Suction Cups | 08396 | +-------+--------+---------------------+---------------+ The Items +------------+------------+-----------+----------+---------+ | child_key | totalprice | totalcost | totalqty | onorder | (jan, feb, mar..) +------------+------------+-----------+----------+---------+ | 24171 | 10.50 | 20.10 | 200 | 100 | | 35685 | 10.50 | 20.10 | 200 | 100 | | 76505 | 10.50 | 20.10 | 200 | 100 | | 04365 | 10.50 | 20.10 | 200 | 100 | | 01975 | 10.50 | 20.10 | 200 | 100 | | 12150 | 10.50 | 20.10 | 200 | 100 | | 40060 | 10.50 | 20.10 | 200 | 100 | | 08396 | 10.50 | 20.10 | 200 | 100 | +------------+------------+-----------+----------+---------+ The figures are actually much more complicated than this (I am actually aggregating a variable amount of months or years over the past 15yrs, so there may need to be 20 columns of aggregated results). I have been trying to figure out RecursiveIterator and IteratorAggregate, but I am having a difficult time finding real world examples that are generic enough to really wrap my head around these classes. Can someone give me a head start?

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  • Marshall a list of objects from VB6 to C#

    - by Andrew
    I have a development which requires the passing of objects between a VB6 application and a C# class library. The objects are defined in the C# class library and are used as parameters for methods exposed by other classes in the same library. The objects all contain simple string/numeric properties and so marshaling has been relatively painless. We now have a requirement to pass an object which contains a list of other objects. If I was coding this in VB6 I might have a class containing a collection as a member variable. In C# I might have a class with a List member variable. Is it possible to construct a C# class in such a way that the VB6 application could populate this inner list and marshal it successfully? I don't have a lot of experience here but I would guess Id have to use an array of Object types.

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  • How are views constructed in Josh Smith's MVVM sample?

    - by Wim Coenen
    Being new to both WPF and MVVM, I'm studying Josh Smith's article on the MVVM pattern and the accompanying sample code. I can see that the application is started in app.xaml.cs by constructing a MainWindow object, wiring it to a MainWindowViewModel object and then showing the main window. So far so good. However, I can't find any code which instantiates the AllCustomersView or CustomerView classes. Using "find all references" on the constructors of those views comes up with nothing. What am I missing here?

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  • Sourcecode for Paymentroll example in Robert C. Martin book

    - by bitbonk
    Throughout the book "Agile Principles, Patterns, and Practices in C#" by Robert C. Martin a small Paymentroll application is build. While most of the source code is printed in place, some classes are missing and some are incomplete. The book says on the firest page: The book includes many source code examples that are also available for download from the authors' Web site. Unfortunately this seems to be a lie. Unless either this is not the author's website (the book forgets to mention the authors website adress) or I am blind. Does anyone have the comlete source code for that book preferably in form of a Visual Studio project or knows where I can find it.

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  • m2eclipse and WTP and adding local project source

    - by user228369
    Hi, I have a spring mvc project in eclipse, and its setup to use maven. I can resolve all my external dependencies, but now I want to include another local project in my workspace. Normally, I would do this through the java build path, and add a project reference. But if I do that manually, m2eclipse just removes those references from my classpath file. I'm assuming this is because maven wants to handle all dependencies. So I enable dependency management on the local project (the source files i want to include), and now when I add dependencies, this project shows up, and it adds it as a jar type (which is correct). I also ran maven-package to create a snapshot of the source project. But the jar is never added in the maven library list, and the project doesn't build because it can't find the classes. What am I doing wrong? Thanks for the help!

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  • Framework not found CoreServices

    - by Matthew Brindley
    I'm trying to use CoreServices on the iPhone simulator (I don't need it to run on a device), but my project won't build because of the error: ld: framework not found CoreServices Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.2 failed with exit code 1 I've added the framework to my project, under frameworks. I also read you need to include CFNetwork.framework, so I've added that too. If I remove CoreServices.framework, the compiler complains about undeclared symbols, as you'd expect. So it seems to use the framework to compile those classes, but then complains it can't find the framework.

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  • Share code between projects in a solution in Visual Studio 2008, when building a common assembly is

    - by Binary255
    Hi, I create an add-on for the product Foo. There are different versions of Foo, namely version 1, 2, 3 and 4. These versions have a mostly compatible API, but not fully. I currently have 5 projects: DotNetCommon - here are the common methods which could be used if I create an add-on or something other than the Foo product. FooOne FooTwo FooThree FooFour The Foo*-projects contains the add-in for version 1-4 of Foo. There are a lot of duplicated files in the Foo*-projects, as there are a lot of things in the API which are identical for all versions of Foo. It would be nice to separate out everything which is common for all Foo-versions. Why not just create a common assembly for all versions of Foo called FooCommon? If I would put all classes which are common for all versions of Foo into a new library project, I would still have to choose which version of Foo the new FooCommon should reference. As said, they are not identical.

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  • Sensor Manager getOrientation, doesnt display text and only works in debug mode?

    - by Aidan
    Hi Guys, My code appears to crash. I'm trying to setup a SensorManager for getting the Orientation of the device. I also have a listener that should update when conditions change. But when I run this code it crashes... public void sensor(){ // Locate the SensorManager using Activity.getSystemService sm = (SensorManager) getSystemService(SENSOR_SERVICE); sm.getOrientation(mR, mOrientation); // Register your SensorListener sm.registerListener(sl, sm.getDefaultSensor(Sensor.TYPE_ORIENTATION),SensorManager.SENSOR_DELAY_NORMAL); } private final SensorEventListener sl = new SensorEventListener() { @Override public void onAccuracyChanged(Sensor sensor, int accuracy) { } @Override public void onSensorChanged(SensorEvent event) { if (event.sensor.getType()==Sensor.TYPE_ORIENTATION) { Global.Orientation = "Orientation is equal to: "+ SensorManager.getOrientation(mR, mOrientation); } } sm is defined as SensorManager sm; as a class wide variable also. I've got some other classes outputting the Orientation to a screen which I know works. The problem is somewhere in these methods. Am I doing it wrong or Is there a better way of doing this?

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  • Unit Testing iPhone - Linker Errors

    - by sliver
    I've followed the Unit Testing Applications guide from the iPhone Development documentation. I followed all the steps and it worked with the TestCase from the documentation. But as soon as I changed the TestCase to test real Code from my project I ended up with linker errors. All classes that are used in the TestCase are reported as missing. I've already searched the internet and found that the Bundle Loader property must be set to "$(BUILT_PRODUCTS_DIR)/MyApplication.app/Contents/MacOS/MyApplication". But this also fails because the file could not be found. Any ideas what I have to do to tell the linker where to search for the missing files?

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  • How To AutoScroll a DataGridView during Drag and Drop

    - by Mason
    One of the forms in my C# .NET application has multiple DataGridViews that implement drag and drop to move the rows around. The drag and drop mostly works right, but I've been having a hard time getting the DataGridViews to AutoScroll - when a row is dragged near the top or bottom of the box, to scroll it in that direction. So far, I've tried implementing a version of this solution. I have a ScrollingGridView class inheriting from DataGridView that implements the described timer, and according to the debugger, the timer is firing appropriately, but the timer code: SendMessage(Handle, WM_VSCROLL, (IntPtr)scrollDirectionInt, IntPtr.Zero); doesn't do anything as far as I can tell, possibly because I have multiple DataGridViews in the form. I also tried modifying the AutoScrollOffset property, but that didn't do anything either. Investigation of the DataGridView and ScrollBar classes doesn't seem to suggest any other commands or functions that will actually make the DataGridView scroll. Can anyone help me with a function that will actually scroll the DataGridView, or some other way to solve the problem?

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  • Do I need to use any other attributes other than CssClassProperty to enabled design-time support?

    - by keith
    Hi, I'm trying to provide the same design-time support that the CssClass provides on some custom properties of a server control. The documentation suggests that decorating the property with the CssClassProperty is all that's required. [CssClassProperty] public string SomeOtherCssClass{get;set;} This has no effect, in vs2008 or vs2010. I've looked at the WebControl class using reflector and implemented all the attributes, and every combination thereof, to my property and still no class dropdown. Some blog posts suggest that the use of the Editor attribute but a) there's not mention of it in the documentation and b) none of editors which are remotely related to css classes have any effect either. Am I missing something to enable this feature? Thanks in advance, Keith.

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  • Open flash chart not working

    - by Axel
    I'm trying to implement Open Flash Chart in my website but it doesn't work. The chart just start loading for a second and the loader animation disappear and nothing happening (Only a black swf area). i've downloaded the latest version which is 2 and here is my folders scheme: // ROOT // ? JS ? open-flash-chart ? php-ofc-library - open-flash-chart.swf - mydata.php - mypage.html This is mydata.php content: {"elements":[{"type":"bar","values":[1,2,3,4,5,6,7,8,9]}],"title":{"text":"Wed Apr 21 2010"}} This is mypage.html content: <script type="text/javascript" src="js/swfobject.js"></script> <script type="text/javascript"> swfobject.embedSWF("open-flash-chart.swf", "my_chart", "550", "200","9.0.0", expressInstall.swf", {"data-file":"mydata.php"} ); </script> <div id="my_chart"></div> The JS folder contain swfobject and the open-flash-chart folder contain the action script classes of the chart Is there any mistake i did? Thanks

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  • MVC2 DataAnnotations validation with inheritance

    - by bhiku
    Hi, I have a .NET 2.0 class the properties of which are marked virtual.I need to use the class as a model in a MVC2 application. So, I have created a .NET 3.5 class inheriting from the .NET 2.0 class and added the DataAnnotations attributes to the overriden properties in the new class. A snippet of what I have done is below // .NET 2.0 class public class Customer { private string _firstName = ""; public virtual string FirstName { get { return _firstName; } set { _firstName = value; } } } // .NET 3.5 class public class MVCCustomer : Customer { [Required(ErrorMessage="Firstname is required")] public override string FirstName { get { return base.FirstName; } set { base.FirstName = value; } } } I have used the class as the model for a MVC2 view using the HtmlFor helpers. Serverside validation works correctly but the client side validation does not. Specifically the validation error is not displayed on the page. What am I missing, or is it only possible to do this using buddy classes. Thanks.

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  • Setting freemarker template from classpath

    - by wuntee
    I have a web application that I need to manually obtain a Freemarker template - the template is obtained via a class in a library project, but the actual tpl file is contained in the web application classpath. So, there are 2 projects, one 'taac-backend-api' and another 'taac-web'; taac-backend-api has the code to grab the template, and process it, but taac-web is where the template is stores (specifically in: WEB-INF/classes/email/vendor.tpl) - I have tried everything from using springs classpath resource to using Freemarkers setClassForTemplateLoading method. I assume this would work: freemarkerConfiguration = new Configuration(); freemarkerConfiguration.setClassForTemplateLoading(this.getClass(), ""); Template freemarkerTemplate = freemarkerConfiguration.getTemplate("/email/vendor.tpl"); yet, I always get a FileNotFoundException. Can someone explain the best way to obtain a template from the classpath? Thanks.

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  • Graphviz DOT arrange Nodes in circles

    - by Ivo Wetzel
    OK here's my problem, I'm generating a graph of a python module, including all the files with their functions/methods/classes. I want to arrange it so, that nodes gather in circles around their parent nodes, currently everything is on one gargantuan horizontal row, which makes the thing 50k pixels wide and also let's the svg converter fail(only renders about the half of the graph). I went trough the docs(http://www.graphviz.org/doc/info/attrs.html) but couldn't find anything that seems to do the trick. So the question is: Is there a simple way to do this or do I have to layout the whole thing by myself? :/

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  • PHP - can a method return a pointer?

    - by Kerry
    I have a method in a class trying to return a pointer: <?php public function prepare( $query ) { // bla bla bla return &$this->statement; } ?> But it produces the following error: Parse error: syntax error, unexpected '&' in /home/realst34/public_html/s98_fw/classes/sql.php on line 246 This code, however, works: <?php public function prepare( $query ) { // bla bla bla $statement = &$this->statement; return $statement; } ?> Is this just the nature of PHP or am I doing something wrong?

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  • C# where does the dbml file come from?

    - by 5YrsLaterDBA
    Learning C# and learing Linq now. have lots of qestions about it. Basically I need a step by step tutorial. I suppose the dbml file is the configuration file of the database. I double click it and VS will open it with kind of design diagram. I can create/delete/modify table here? I can use add new item to add the Linq to SQL Classes to get a dbml file? what's next? generate tables in database? generate sql script? generate cs files? when? how?

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  • Moving a sprite around the circumference of a circle in Cocos2d-iPhone

    - by CircleOfLife
    I am new to Cocos2d. I have taken a look at the documentation at it looks pretty simple compared to what you need to do using basic Iphone classes such as UIAnimation etc. I want to move a Sprite (eg. Bird, Plane or Car) around the center of a circle around its circumference, smoothly so that even the sprite rotates accordingly. How is this possible in Cocos2d? It would be very helpful if someone can post some basic code. Thanks.

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  • Hadoop WordCount example stuck at map 100% reduce 0%

    - by Abhinav Sharma
    [hadoop-1.0.2] ? hadoop jar hadoop-examples-1.0.2.jar wordcount /user/abhinav/input /user/abhinav/output Warning: $HADOOP_HOME is deprecated. ****hdfs://localhost:54310/user/abhinav/input 12/04/15 15:52:31 INFO input.FileInputFormat: Total input paths to process : 1 12/04/15 15:52:31 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 12/04/15 15:52:31 WARN snappy.LoadSnappy: Snappy native library not loaded 12/04/15 15:52:31 INFO mapred.JobClient: Running job: job_201204151241_0010 12/04/15 15:52:32 INFO mapred.JobClient: map 0% reduce 0% 12/04/15 15:52:46 INFO mapred.JobClient: map 100% reduce 0% I've set up hadoop on a single node using this guide (http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/#run-the-mapreduce-job) and I'm trying to run a provided example but I'm getting stuck at map 100% reduce 0%. What could be causing this?

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  • GWT: use the same UI template for multiple pages?

    - by janya
    Hello, how can I use the same UI template (*.ui.xml file) with multiple Java objects extending from Composite? I need to build several pages that should display basically the same information with the same layout, but on one page some fields will be editable, and on a different page other fields will be editable. I would like to specify layout only once in ui.xml, and create different behaviors in different *.java classes. Eclipse is giving me a syntax error "FirstAppUI.ui.xml is missing" on @UiTemplate("Template.ui.xml") public class FirstAppUI extends Composite { interface FirstAppUIUiBinder extends UiBinder<Widget, FirstAppUI> { } } thanks! jane prusakova

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  • Blog - BlogPost - BlogPostComment vs Blog - Post - Comment

    - by Anton Gogolev
    Don't really know how to formulate the title, but it should be pretty obvious from the example. More specifically, what rules do you use for naming "dependent" classes. For example, Blog is a pretty descriptive name itself, but how do I deal with posts? BlogPost or Post? Clearly, first name clearly expresses that it's a "subordinate" class, but this can quickly get out of hand with BlogPostComment, BlogPostCommentAttachment, etc. Post, on the other hand, looks like an entity completely unrelated to Blog and is easier on the eye. What are your rules/best practices?

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  • Objective-C runtime reflection (objc_msgSend): does it violate the iPhone Developer License Agreemen

    - by GamingHorror
    Does code like this (potentially) violate the iPhone Developer License Agreement? Class clazz = NSClassFromString(@"WNEntity"); id entity = [clazz entityWithImage:@"Icon.png"]; SEL setPositionSelector = NSSelectorFromString(@"setPosition:"); objc_msgSend(entity, setPositionSelector, CGPointMake(200, 100)); I'm working on code that dynamically allocates classes from XML and calls methods on them via objc_msgSend. It's just very convenient constructing my objects that way but it worries me because i have no idea whether this is ok or violates the License by dynamically executing code or maybe even calling private (?) API functions. They wouldn't be documented if they were private, right? Can someone shed some light on this? Have you had an App approved or rejected using code similar to the above? I'm pretty sure that this is ok but i wan't to hear it from someone else! :)

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  • Programmaticaly prevent Vista desktop search (WDS) from indexing pst files placed on mapped network

    - by Jao
    Hi! After several days and multiple attempts I didn't find any 100% solution for this trouble. My search and investigation scopes: Direct access to registry: HKLM\SOFTWARE\Microsoft\Windows Search\CrawlScopeManager\Windows\SystemIndex\WorkingSetRules HKCU\Software\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\Mapi HKLM\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Sites\ and other keys... Windows Search 3.X interfaces like ISearchManager using Microsoft.Search.Interop Microsoft.Office.Interop.Outlook classes: NameSpace, Store AD policies (useless, no effect :( Preferred technologies: VB.NET, C#. This solution must be deployed within a large organization (about 5000 wokstations). Any ideas? Thanks in advance.

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