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  • Mac CoreLocation Services does not ask for permissions

    - by Ryan Nichols
    I'm writing a Mac App that needs to use CoreLocation services. The code and location works fine, as long as I manually authenticate the service inside the security preference pane. However the framework is not automatically popping up with a permission dialog. The documentation states: Important The user has the option of denying an application’s access to the location service data. During its initial uses by an application, the Core Location framework prompts the user to confirm that using the location service is acceptable. If the user denies the request, the CLLocationManager object reports an appropriate error to its delegate during future requests. I do get an error to my delegate, and the value of +locationServicesEnabled is correct on CLLocationManager. The only part missing is the prompt to the user about permissions. This occurs on my development MPB and a friends MBP. Neither of us can figure out whats wrong. Has anyone run into this? Relevant code: _locationManager = [CLLocationManager new]; [_locationManager setDelegate:self]; [_locationManager setDesiredAccuracy:kCLLocationAccuracyKilometer]; ... [_locationManager startUpdatingLocation]; UPDATE: Answer It seems there is a problem with Sandboxing in which the CoreLocation framework is not allowed to talk to com.apple.CoreLocation.agent. I suspect this agent is responsible for prompting the user for permissions. If you add the Location Services Entitlement (com.apple.security.personal-information.location) it only gives your app the ability to use the CL framework. However you also need access to the CoreLocation agent to ask the user for permissions. You can give your app access by adding the entitlement 'com.apple.security.temporary-exception.mach-lookup.global-name' with a value of 'com.apple.CoreLocation.agent'. Users will be prompted for access automatically like you would expect. I've filed a bug to apple on this already.

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  • Using JSON, passing variable from php to javascript

    - by Ryan Fung
    I wonder why it is not working? check_login.php <?php session_start(); $data = array("username" => "true"); echo json_encode($data); ?> my js file var linkName; $.ajax({ type: "POST", url: "check_login.php", dataType: "json", success: function(json){ if(json.username != "true") { //do something } } }); I am trying to get the username after checking whether or not the user has signed in yet in the php file, something like passing a session variable. But currently passing a string seems to already have a problem. Any know what I did wrong here? Still not working the code above. Anyone want to help me out here?

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  • Omniauth Facebook authentication on localhost

    - by Ryan Foster
    I am trying to set up Omniauth as described in this Railscast. While it works with Twitter, I am unable to get it working with Facebook. I also set up 'http://localhost:3000' as siteurl and 'localhost' as domain but still see the following error message in the browser: Invalid redirect_uri: Given URL is not allowed by the Application configuration. Does anyone of you have any suggestions on how to fix this? Thanks in advance.

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  • Dynamic "OR" conditions in Rails 3

    - by Ryan Foster
    I am working on a carpool application where people can search for lifts. They should be able to select the city from which they would liked to be picked up and choose a radius which will then add the cities in range to the query. However the way it is so far is that i can only chain a bunch of "AND" conditions together where it would be right to say "WHERE start_city = city_from OR start_city = a_city_in_range OR start_city = another_city_in_range" Does anyone know how to achive this? Thanks very much in advance. class Search < ActiveRecord::Base def find_lifts scope = Lift.where('city_from_id = ?', self.city_from) #returns id of cities which are in range of given radius @cities_in_range_from = City.location_ids_in_range(self.city_from, self.radius_from) #adds where condition based on cities in range for city in @cities_in_range_from scope = scope.where('city_from_id = ?', city) #something like scope.or('city_from_id = ?', city) would be nice.. end end

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  • How to read from a method that returns a filehandle in perl?

    - by Ryan Thompson
    I have an object with a method that returns a filehandle, and I want to read from that handle. The following doesn't work, because the right angle bracket of the method call is interpreted as the closing angle bracket of the input reader: my $input = <$object->get_handle()>; That gets parsed as: my $input = ( < $object- > ) get_handle() >; which is obviously a syntax error. Is there any way I can perform a method call within an angle operator, or do I need to break it into two steps like this? my $handle = $object->get_handle(); my $input = <$handle>;

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  • Problem with WHERE columnName = Data in MySQL query in C#

    - by Ryan Sullivan
    I have a C# webservice on a Windows Server that I am interfacing with on a linux server with PHP. The PHP grabs information from the database and then the page offers a "more information" button which then calls the webservice and passes in the name field of the record as a parameter. So i am using a WHERE statement in my query so I only pull the extra fields for that record. I am getting the error: System.Data.SqlClient.SqlException:Invalid column name '42' Where 42 is the value from the name field from the database. my query is string selectStr = "SELECT name, castNotes, triviaNotes FROM tableName WHERE name =\"" + show + "\""; I do not know if it is a problem with my query or something is wrong with the database, but here is the rest of my code for reference. NOTE: this all works perfectly when I grab all of the records, but I only want to grab the record that I ask my webservice for. public class ktvService : System.Web.Services.WebService { [WebMethod] public string moreInfo(string show) { string connectionStr = "MyConnectionString"; string selectStr = "SELECT name, castNotes, triviaNotes FROM tableName WHERE name =\"" + show + "\""; SqlConnection conn = new SqlConnection(connectionStr); SqlDataAdapter da = new SqlDataAdapter(selectStr, conn); DataSet ds = new DataSet(); da.Fill(ds, "tableName"); DataTable dt = ds.Tables["tableName"]; DataRow theShow = dt.Rows[0]; string response = "Name: " + theShow["name"].ToString() + "Cast: " + theShow["castNotes"].ToString() + " Trivia: " + theShow["triviaNotes"].ToString(); return response; } }

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  • Installed Programs/Computer Info for Web Application

    - by Ryan Gyure
    I'm currently developing a support system for a university. The system is written in PHP and I would like to be able to get a current list of software and basic computer information on a computer. Basically when one of the faculty or staff creates a ticket from our web interface, I would like to have a Java Applet or similar that could be run and would return the information to the help desk PHP script. Does something like this exist?

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  • jQuery setInterval loop not holding variable

    - by Ryan
    Here is my code: var showNo = 1; window.setInterval(function() { if(showNo === 1) { var nextNo = 2; } else if(showNo === 2) { var nextNo = 3; } else if(showNo === 3) { var nextNo = 4; } else if(showNo === 4) { var nextNo = 5; } else if(showNo === 5) { var nextNo = 1; } else { var showNo = 1; var nextNo = 2; } var showNo = nextNo; }, 500); My question is, why is the showNo variable not holding when the setInterval loop starts? This may be a simple question, but I am trying to teach myself query and this has me stuck.. Any answers would be great. Thanks.

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  • Resizing Images with ASP.NET and saving to Database

    - by Ryan
    I need to take an uploaded image, resize it, and save it to the database. Simple enough, except I don't have access to save any temp files to the server. I'm taking the image, resizing it as a Bitmap, and need to save it to a database field as the original image type (JPG for example). How can I get the FileBytes() like this, so I can save it to the database? Before I was using ImageUpload.FileBytes() but now that I'm resizing I'm dealing with Images and Bitmaps instead of FileUploads and can't seem find anything that will give me the bytes. Thanks!

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  • Generating a URL pattern when provided a set of 5 or so URLs

    - by ryan
    Provided with a set of URLs, I need to generate a pattern, For example: http://www.buy.com/prod/disney-s-star-struck/q/loc/109/213724402.html http://www.buy.com/prod/samsung-f2380-23-widescreen-1080p-lcd-monitor-150-000-1-dc-8ms-1920-x/q/loc/101/211249863.html http://www.buy.com/prod/panasonic-nnh765wf-microwave-oven-countertop-1-6-ft-1250w-panasonic/q/loc/66357/202045865.html http://www.buy.com/prod/escape-by-calvin-klein-for-women-3-4-oz-edp-spray/q/loc/66740/211210860.html http://www.buy.com/prod/v-touch-8gb-mp3-mp4-2-8-touch-screen-2mp-camera-expandable-minisd-w/q/loc/111/211402014.html Pattern is http://www.buy.com/prod/[^~]/q/loc/[^~].html

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  • Why qry.post executed with asynchronous mode?

    - by Ryan
    Recently I met a strange problem, see code snips as below: var sqlCommand: string; connection: TADOConnection; qry: TADOQuery; begin connection := TADOConnection.Create(nil); try connection.ConnectionString := 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Test.MDB;Persist Security Info=False'; connection.Open(); qry := TADOQuery.Create(nil); try qry.Connection := connection; qry.SQL.Text := 'Select * from aaa'; qry.Open; qry.Append; qry.FieldByName('TestField1').AsString := 'test'; qry.Post; beep; finally qry.Free; end; finally connection.Free; end; end; First, Create a new access database named test.mdb and put it under the directory of this test project, we can create a new table named aaa in it which has only one text type field named TestField1. We set a breakpoint at line of "beep", then lunch the test application under ide debug mode, when ide stops at the breakpoint line (qry.post has been executed), at this time we use microsoft access to open test.mdb and open table aaa you will find there are no any changes in table aaa, if you let the ide continue running after pressing f9 you can find a new record is inserted in to table aaa, but if you press ctrl+f2 to terminate the application at the breakpoint, you will find the table aaa has no record been inserted, but in normal circumstance, a new record should be inserted in to the table aaa after qry.post executed. who can explain this problem , it troubles me so long time. thanks !!! BTW, the ide is delphi 2010, and the access mdb file is created by microsoft access 2007 under windows 7

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  • MySQL database Int overflow and can't login in.

    - by Ryan SMith
    I have a MySQL database on my server and I"m pretty sure it's an int over flow on one table with an auto_increment field that's crashing it. I can delete the table, it's not very important, but I can't get into the server. Is there anyway to delete that database from the file system or without logging into MySQL? HELP! THE WORLD IS ENDING!

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  • Why is the ASP.NET Repeater.Items collection empty, when controls are on the screen?

    - by Ryan
    I have an ASP page with the following repeater: <asp:Repeater runat="server" ID="RegionRepeater" DataSourceID="SqlDataSourceRegions" EnableViewState="true"> <ItemTemplate> <tr> <td valign="top"> <b><%#Eval("description")%></b> <asp:HiddenField runat="server" ID="RegionID" Value='<%#Eval("region_id")%>'/> </td> <td> <asp:FileUpload ID="FileUpload" runat="server" Width="368px" /> </td> </tr> </ItemTemplate> </asp:Repeater> (The repeater is inside a Wizard, inside a content pane). The code behind is connected to the protected void Wizard1_NextButtonClick(object sender, WizardNavigationEventArgs e) event. There are two items on the screen (two rows inside the table). However, when the code tries to read those items, the Items collection is empty! foreach(RepeaterItem region in RegionRepeater.Items) { // Never runs - the RegionRepeater.Items.Count = 0 FileUpload fileUpload = (FileUpload) region.FindControl("FileUpload"); String regionID = ((HiddenField)region.FindControl("RegionID")).Value; ... Why is the collection empty, when there are controls drawn on the screen? Thanks a lot for any help; this is starting to drive me nuts. (BTW: I tried adding/removing the EnableViewState="true" tag)

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  • Isn't it better to use a single try catch instead of tons of TryParsing and other error handling sometimes?

    - by Ryan Peschel
    I know people say it's bad to use exceptions for flow control and to only use exceptions for exceptional situations, but sometimes isn't it just cleaner and more elegant to wrap the entire block in a try-catch? For example, let's say I have a dialog window with a TextBox where the user can type input in to be parsed in a key-value sort of manner. This situation is not as contrived as you might think because I've inherited code that has to handle this exact situation (albeit not with farm animals). Consider this wall of code: class Animals { public int catA, catB; public float dogA, dogB; public int mouseA, mouseB, mouseC; public double cow; } class Program { static void Main(string[] args) { string input = "Sets all the farm animals CAT 3 5 DOG 21.3 5.23 MOUSE 1 0 1 COW 12.25"; string[] splitInput = input.Split(' '); string[] animals = { "CAT", "DOG", "MOUSE", "COW", "CHICKEN", "GOOSE", "HEN", "BUNNY" }; Animals animal = new Animals(); for (int i = 0; i < splitInput.Length; i++) { string token = splitInput[i]; if (animals.Contains(token)) { switch (token) { case "CAT": animal.catA = int.Parse(splitInput[i + 1]); animal.catB = int.Parse(splitInput[i + 2]); break; case "DOG": animal.dogA = float.Parse(splitInput[i + 1]); animal.dogB = float.Parse(splitInput[i + 2]); break; case "MOUSE": animal.mouseA = int.Parse(splitInput[i + 1]); animal.mouseB = int.Parse(splitInput[i + 2]); animal.mouseC = int.Parse(splitInput[i + 3]); break; case "COW": animal.cow = double.Parse(splitInput[i + 1]); break; } } } } } In actuality there are a lot more farm animals and more handling than that. A lot of things can go wrong though. The user could enter in the wrong number of parameters. The user can enter the input in an incorrect format. The user could specify numbers too large or too small for the data type to handle. All these different errors could be handled without exceptions through the use of TryParse, checking how many parameters the user tried to use for a specific animal, checking if the parameter is too large or too small for the data type (because TryParse just returns 0), but every one should result in the same thing: A MessageBox appearing telling the user that the inputted data is invalid and to fix it. My boss doesn't want different message boxes for different errors. So instead of doing all that, why not just wrap the block in a try-catch and in the catch statement just display that error message box and let the user try again? Maybe this isn't the best example but think of any other scenario where there would otherwise be tons of error handling that could be substituted for a single try-catch. Is that not the better solution?

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  • Is There a More Efficient Way to Write Nested While Loops?

    - by Ryan
    The code below shows nested while loops, but it's not the very efficient. Suppose I wanted to extend the code to include 100 nested while loops. Is there a better way to accomplish this task? <?php $count = 1; $num = 1; $options=3; while ( $num <=$options ) { echo "(".$num . ") "; $num1 = 1; $options1=3; while ( $num1 <=$options1 ) { echo "*".$num1 . "* "; $num2 = 1; $options2=3; while ( $num2 <=$options2 ) { echo "@".$num2 . "@ "; $num3 = 1; $options3=3; while ( $num3 <=$options3 ) { echo $num3 . " "; $num3++; $count++; } echo "<br />"; $num2++; } echo "<br />"; $num1++; } echo "<br />"; $num++; } echo $count; ?>

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  • Is it possible to take a screenshot of a web page with Javascript or HTML5/Canvas?

    - by Ryan Kearney
    Is there a way I could insert some code into a page that would take a screenshot of what the user sees in the browser window, then upload that image via a web form of some sort? I'm working on a clone of a pay-to-use service that lets you install a widget on a web page which in turn allows viewers to report bugs in the sites layout. Currently they use a Java applet to take the screenshot, which, in my opinion, is probably the worst way to go about it (aside from requiring the user to install a plugin) Is there a javascript/flash/other alternative? Thanks

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  • ERROR: Failed to build gem native extension (mysql2 on rails 3.2.3)

    - by Ryan Arneson
    I'm trying to install the mysql2 gem with Rails 3.2.3 and it's failing: ? bundle install Fetching gem metadata from https://rubygems.org/......... Using rake (0.9.2.2) Using i18n (0.6.0) Using multi_json (1.2.0) Using activesupport (3.2.3) Using builder (3.0.0) Using activemodel (3.2.3) Using erubis (2.7.0) Using journey (1.0.3) Using rack (1.4.1) Using rack-cache (1.2) Using rack-test (0.6.1) Using hike (1.2.1) Using tilt (1.3.3) Using sprockets (2.1.2) Using actionpack (3.2.3) Using mime-types (1.18) Using polyglot (0.3.3) Using treetop (1.4.10) Using mail (2.4.4) Using actionmailer (3.2.3) Using arel (3.0.2) Using tzinfo (0.3.32) Using activerecord (3.2.3) Using activeresource (3.2.3) Using bundler (1.1.3) Using coffee-script-source (1.2.0) Using execjs (1.3.0) Using coffee-script (2.2.0) Using rack-ssl (1.3.2) Using json (1.6.6) Using rdoc (3.12) Using thor (0.14.6) Using railties (3.2.3) Using coffee-rails (3.2.2) Using jquery-rails (2.0.2) Installing mysql2 (0.3.11) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/rarneson/.rvm/rubies/ruby-1.9.3-p125/bin/ruby extconf.rb checking for rb_thread_blocking_region()... yes checking for rb_wait_for_single_fd()... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lm... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lz... yes checking for mysql_query() in -lmysqlclient... no checking for main() in -lsocket... no checking for mysql_query() in -lmysqlclient... no checking for main() in -lnsl... no checking for mysql_query() in -lmysqlclient... no checking for main() in -lmygcc... no checking for mysql_query() in -lmysqlclient... no *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/Users/rarneson/.rvm/rubies/ruby-1.9.3-p125/bin/ruby --with-mysql-config --without-mysql-config --with-mysql-dir --without-mysql-dir --with-mysql-include --without-mysql-include=${mysql-dir}/include --with-mysql-lib --without-mysql-lib=${mysql-dir}/lib --with-mysqlclientlib --without-mysqlclientlib --with-mlib --without-mlib --with-mysqlclientlib --without-mysqlclientlib --with-zlib --without-zlib --with-mysqlclientlib --without-mysqlclientlib --with-socketlib --without-socketlib --with-mysqlclientlib --without-mysqlclientlib --with-nsllib --without-nsllib --with-mysqlclientlib --without-mysqlclientlib --with-mygcclib --without-mygcclib --with-mysqlclientlib --without-mysqlclientlib Gem files will remain installed in /Users/rarneson/.rvm/gems/ruby-1.9.3-p125/gems/mysql2-0.3.11 for inspection. Results logged to /Users/rarneson/.rvm/gems/ruby-1.9.3-p125/gems/mysql2-0.3.11/ext/mysql2/gem_make.out An error occured while installing mysql2 (0.3.11), and Bundler cannot continue. Make sure that `gem install mysql2 -v '0.3.11'` succeeds before bundling. I'm running bundle install and this is in my Gemfile: gem 'mysql2', '~> 0.3.11' I've currently got MySQL running through MAMP. I'm not sure if this is a bad idea and I should run a vanilla MySQl but it seems my current problem is just getting the gem installed. I've seen quite a few of these problems here on stackoverflow but all seem a bit different or have really complicated solutions. Is there something I'm missing? Something simple? Something stupid? I can provide additional info from the out file if necessary. I've read that some people use SQLite for dev and test then MySQL in prod but that sounds like a pretty horrible idea.

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  • Did Delphi ever get a for each loop?

    - by Ryan
    Hello, I've read that Delphi was supposed to get a for each loop in Delphi 9. Did this functionality ever make it into the language? My Delphi 2009 IDE doesn't seem to recognize the for each syntax. Here's my code: procedure ProcessDirectory(p_Directory, p_Output : string); var files : TStringList; filePath : string; begin files := GetSubfiles(p_Directory); try for (filePath in files.Strings) do begin // do something end; finally files.Free; end; end;

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  • When I zip up my demo FlashDevelop project..why does it break?

    - by Ryan
    I built an AS3 image gallery using FlashDevelop. Before I zip up the application, I can run the image gallery in my browser by simply opening the index.html for the project. Everything works perfectly. I then zip up the project as proj-0.1.2.zip using winrar. I then unzip this newly created zip and try to load the application using the project index.html like above. The gallery doesn't function properly. From seeing what happens, it appears as though the image metadata is not present(but I'm not sure, see below). There are other applications as well that are broken. Videos don't load. If an application doesn't depend on any external assets then everything looks fine. Another thing..If I then build the FlashDevelop project and republish the swf..then it works in the index.html like I want. What is going on here? I want people to be able to fire up my demo apps out of the box by just running the index.html. If that doesn't always work and they have to figure out that they need to rebuild the SWF then that's pretty bad.

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  • Android - Linkify Problem

    - by Ryan
    I seem to be having trouble with the linkify I am using in my Custom Adapter. For some reason I recieve the following stack track when I click on one of the links: 06-07 20:49:34.696: ERROR/AndroidRuntime(813): Uncaught handler: thread main exiting due to uncaught exception 06-07 20:49:34.745: ERROR/AndroidRuntime(813): android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.app.ApplicationContext.startActivity(ApplicationContext.java:550) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.content.ContextWrapper.startActivity(ContextWrapper.java:248) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.text.style.URLSpan.onClick(URLSpan.java:62) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.text.method.LinkMovementMethod.onTouchEvent(LinkMovementMethod.java:216) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.widget.TextView.onTouchEvent(TextView.java:6560) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.View.dispatchTouchEvent(View.java:3709) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107) 06-07 20:49:34.745: ERROR/AndroidRuntime(813): at android.app.Activity.dispatchTouchEvent(Activity.java:2061) Here is the code that is calling it: TextView bot = new TextView( c ); bot.setText(li.getBottomText()); bot.setTextColor(Color.BLACK); bot.setTextSize(12); bot.setPadding(50, 35, 0, 10); Linkify.addLinks(bot, Linkify.ALL); rL.addView(bot,ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); I understand what the error is saying but I am not sure how to fix it. Does anyone have any ideas? Thanks in advance for your help!

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  • How do I set a single virtual directory of my web app to not inherit web.config?

    - by Ryan
    I have a virtual directory setup in one of my web apps that needs to not inherit the web.config of the main app so it can run on it's own. I am wondering how I can do this because right now when I hit it (mainwebapp.domain.com/virdir) it throws an error saying it can't find some dependencies that are listed in the main apps web.config (shows main app web.config in the error message), this virdir contains it's own little app that needs to just run standalone.

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  • When opening a file in perl, how can I automatically use STDIN/OUT if the file name is "-"?

    - by Ryan Thompson
    I have a perl program that takes input and output file arguments, and I'd like to support the convention of using "-" to specify standard input/output. The problem is that I can't just open the file name, because open(my $input, '<', '-') opens a file called -, not standard input. So I have to do something like this: my $input_fh; if ($input_filename eq '-') { # Special case: get the stdin handle $input_fh = *STDIN{IO}; } else { # Standard case: open the file open($input_fh, '<', $input_filename); } And similarly for the output file. Is there any way to do this without testing for the special case myself? I know I could hack the ARGV filehandle to do this for input, but that won't work for output.

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