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  • MP4 plays on Safari 4 (desktop) but not on Safari Mobile (iphone)

    - by deb
    I'm encoding the video with ffmpeg and displaying it using the HTML 5 video tag. It works fine on Firefox (i'm also providing a ogg version) and Safari 4. However, when I try to open it on the iphone I get a "Cannot Play Movie" error. Here is the ffmpeg command I'm using: ffmpeg -y -i movie.mov -acodec libfaac -ar 44100 -ab 96k -vcodec libx264 -vpre hq -level 41 -crf 20 -bufsize 20000k -maxrate 1500k -g 250 -s 320X200 -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -flags2 +dct8x8+bpyramid -me_method umh -subq 7 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -rc_eq 'blurCplx^(1-qComp)' -bf 16 -b_strategy 1 -bidir_refine 1 -refs 6 -deblockalpha 0 -deblockbeta 0 movie.mp4 I reduced the maxrate to 1500 because I read that if the bit rate is too high the iphone won't play the video, but still didn't work. I don't know where else to look... any ideas? Thanks in advance

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  • Java Errors with jRuby on Rails on Google App Engine

    - by John Wang
    I followed all of the instructions so far from: http://code.google.com/p/appengine-jruby/wiki/RunningRails and http://gist.github.com/268192 Currently, I'm just trying to get to hello world. I'm getting these errors when I just run the dev_appserver.rb 238:hello-world jwang392$ dev_appserver.rb . => Booting DevAppServer => Press Ctrl-C to shutdown server => Generating configuration files 2010-04-08 09:16:51.961 java[411:1707] [Java CocoaComponent compatibility mode]: Enabled 2010-04-08 09:16:51.964 java[411:1707] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.100000 Apr 8, 2010 7:17:05 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1270754225387000] javax.servlet.ServletContext log: Warning: error application could not be initialized org.jruby.rack.RackInitializationException: no such file to load -- time from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25:in `boot!' from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/boot/rack.rb:10 from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1:in `load' from <script>:1 at org.jruby.rack.DefaultRackApplicationFactory $4.init(DefaultRackApplicationFactory.java:169) at org.jruby.rack.DefaultRackApplicationFactory.newErrorApplication(DefaultRac kApplicationFactory.java: 118) at org.jruby.rack.DefaultRackApplicationFactory.init(DefaultRackApplicationFac tory.java: 37) at org.jruby.rack.SharedRackApplicationFactory.init(SharedRackApplicationFacto ry.java: 26) at org.jruby.rack.RackServletContextListener.contextInitialized(RackServletCon textListener.java: 40) at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java: 530) at org.mortbay.jetty.servlet.Context.startContext(Context.java:135) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1218) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 500) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 448) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 117) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 117) at org.mortbay.jetty.Server.doStart(Server.java:217) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at com.google.appengine.tools.development.JettyContainerService.startContainer (JettyContainerService.java: 188) at com.google.appengine.tools.development.AbstractContainerService.startup(Abs tractContainerService.java: 147) at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerI mpl.java: 219) at com.google.appengine.tools.development.DevAppServerMain $StartAction.apply(DevAppServerMain.java:162) at com.google.appengine.tools.util.Parser $ParseResult.applyArgs(Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServer Main.java: 113) at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMa in.java: 89) Caused by: org.jruby.exceptions.RaiseException: no such file to load -- time at (unknown).new(file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25) at Kernel.require(file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25) at JRuby::Rack::Booter.boot!(file:/Users/jwang392/hello-world/WEB-INF/ lib/jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:10) at (unknown).(unknown)(file:/Users/jwang392/hello-world/WEB-INF/lib/ jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1) at (unknown).(unknown)(file:/Users/jwang392/Dhello-world/WEB-INF/lib/ jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1) at Kernel.load(<script>:1) at (unknown).(unknown)(:1) Apr 8, 2010 7:17:05 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1270754225913000] javax.servlet.ServletContext log: unable to create shared application instance org.jruby.rack.RackInitializationException: no such file to load -- time from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25:in `boot!' from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/boot/rack.rb:10 from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1:in `load' from <script>:1 at org.jruby.rack.DefaultRackApplicationFactory $4.init(DefaultRackApplicationFactory.java:169) at org.jruby.rack.DefaultRackApplicationFactory.getApplication(DefaultRackAppl icationFactory.java: 51) at org.jruby.rack.SharedRackApplicationFactory.init(SharedRackApplicationFacto ry.java: 27) at org.jruby.rack.RackServletContextListener.contextInitialized(RackServletCon textListener.java: 40) at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java: 530) at org.mortbay.jetty.servlet.Context.startContext(Context.java:135) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1218) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 500) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 448) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 117) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 117) at org.mortbay.jetty.Server.doStart(Server.java:217) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at com.google.appengine.tools.development.JettyContainerService.startContainer (JettyContainerService.java: 188) at com.google.appengine.tools.development.AbstractContainerService.startup(Abs tractContainerService.java: 147) at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerI mpl.java: 219) at com.google.appengine.tools.development.DevAppServerMain $StartAction.apply(DevAppServerMain.java:162) at com.google.appengine.tools.util.Parser $ParseResult.applyArgs(Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServer Main.java: 113) at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMa in.java: 89) Caused by: org.jruby.exceptions.RaiseException: no such file to load -- time at (unknown).new(file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25) at Kernel.require(file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25) at JRuby::Rack::Booter.boot!(file:/Users/jwang392/hello-world/WEB-INF/ lib/jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:10) at (unknown).(unknown)(file:/Users/jwang392/hello-world/WEB-INF/lib/ jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1) at (unknown).(unknown)(file:/Users/jwang392/hello-world/WEB-INF/lib/ jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1) at Kernel.load(<script>:1) at (unknown).(unknown)(:1) Apr 8, 2010 7:17:05 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1270754225915000] javax.servlet.ServletContext log: Error: application initialization failed org.jruby.rack.RackInitializationException: unable to create shared application instance at org.jruby.rack.SharedRackApplicationFactory.init(SharedRackApplicationFacto ry.java: 39) at org.jruby.rack.RackServletContextListener.contextInitialized(RackServletCon textListener.java: 40) at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java: 530) at org.mortbay.jetty.servlet.Context.startContext(Context.java:135) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java: 1218) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java: 500) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 448) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 117) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java: 117) at org.mortbay.jetty.Server.doStart(Server.java:217) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java: 40) at com.google.appengine.tools.development.JettyContainerService.startContainer (JettyContainerService.java: 188) at com.google.appengine.tools.development.AbstractContainerService.startup(Abs tractContainerService.java: 147) at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerI mpl.java: 219) at com.google.appengine.tools.development.DevAppServerMain $StartAction.apply(DevAppServerMain.java:162) at com.google.appengine.tools.util.Parser $ParseResult.applyArgs(Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServer Main.java: 113) at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMa in.java: 89) Caused by: org.jruby.rack.RackInitializationException: no such file to load -- time from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25:in `boot!' from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/boot/rack.rb:10 from file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1:in `load' from <script>:1 at org.jruby.rack.DefaultRackApplicationFactory $4.init(DefaultRackApplicationFactory.java:169) at org.jruby.rack.DefaultRackApplicationFactory.getApplication(DefaultRackAppl icationFactory.java: 51) at org.jruby.rack.SharedRackApplicationFactory.init(SharedRackApplicationFacto ry.java: 27) ... 19 more Caused by: org.jruby.exceptions.RaiseException: no such file to load -- time at (unknown).new(file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25) at Kernel.require(file:/Users/jwang392/hello-world/WEB-INF/lib/jruby- rack-0.9.6.jar!/jruby/rack/booter.rb:25) at JRuby::Rack::Booter.boot!(file:/Users/jwang392/hello-world/WEB-INF/ lib/jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:10) at (unknown).(unknown)(file:/Users/jwang392/hello-world/WEB-INF/lib/ jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1) at (unknown).(unknown)(file:/Users/jwang392/hello-world/WEB-INF/lib/ jruby-rack-0.9.6.jar!/jruby/rack/boot/rack.rb:1) at Kernel.load(<script>:1) at (unknown).(unknown)(:1) The server is running at http://localhost:8080/ I'm at a loss at what step I may have missed. I checked my ruby version (1.8.7) and rails version (2.3.5), gem version (1.3.6) and google-appengine-0.0.10.1 ran: sudo gem install google-appengine curl -O http://appengine-jruby.googlecode.com/hg/demos/rails2/rails2_appengine.rb ruby rails2_appengine.rb sudo gem install rails_dm_datastore sudo gem install activerecord-nulldb-adapter put this in my config.ru file: run lambda { |env| Rack::Response.new('Hello World!').finish } and finally ran $ dev_appserver.rb .

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  • How to create mobile substrate plugins on XCode?

    - by prathumca
    Hi Everyone, I just wanna create a MS plugin to hook SpringBoard. I'm following "gojohnnyboi" tutorial from here "http://www.ipodtouchfans.com/forums/showthread.php?t=103558". To create a dylib on XCode, I'm following "SkylarEC" tutorial. I mix these two great tutorials and finally got succeed by getting a dylib. But when I placed the dylib in the /Library/MobileSubstrate/DynamicLibraries/ nothing is happened (no alert was shown). By evaluating, I found that, this dylib doesn't have any starting point when it was loaded into the memory. So I mentioned a starting point by declaring a constructor in the .mm file like, __ attribute__((constructor)) static void init() { Class _$SBAppIcon = objc_getClass("SBApplicationIcon"); MSHookMessage($SBAppIcon, @selector(launch), (IMP) &_$ExampleHook_AppIcon_Launch, "_OriginalMethodPrefix"); } But when I'm trying to compile this, I'm getting an error like, Undefined symbols: "_MSHookMessage", referenced from: init() in ExampleHook.o ld: symbol(s) not found collect2: ld returned 1 exit status. Does anyone has idea how to solve this? It would be great and more helpful if anyone share the detailed tutorial/instructions to create a dylib on XCode. P.S I placed all the libsubstrate.dylib and substrate.h files in the corresponding location. And the locations are, libsubstrate.dylib : /Developer/Platforms/iPhoneOS.platform/Developer/usr/lib/ substrate.h : /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/include and my base SDK is 3.0.

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  • RTP Client Application on Android Mobile Device

    - by devang
    Hey folks,i am developing a RTP client on an Android device which can play streaming videos from a server. I am confused regarding how should i start about? i am thinking of developing a web app, using HTML,CSS and Javascript, which can later be wrapped in Android.is this approach correct? does javascript support real time media player? please guide me, i am a fresher and completely clueless..:(

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  • Preventing mouse emulation events (ie click) from touch events in Mobile Safari / iPhone using Javas

    - by Jaime Cham
    In doing a single page Javascript app with interactive DOM elements I've found that the "mouseover-mousemove-mousedown-mouseup-click" sequence happens all in a bunch after the "touchstart-touchmove-touchend" sequence of events. I've also found that it is possible to prevent the "mouse*-click" events from happening by doing an "event.preventDefault()" during the touchstart event, but only then, and not during the touchmove and touchend. This is a strange design, because because it is not possible to know during the touchstart yet whether the user intents to drag or swipe or just tap/click on the item. I ended up setting up a "ignore_next_click" flag somewhere tied to a timestamp, but this is obviously not very clean. Does anybody know of a better way of doing this, or are we missing something? Note that while a "click" can be recognized as a "touchstart-touchend" sequence (ie no "touchmove"), there are certain things, such as keyboard input focus, that can only happen during a proper click event.

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  • iPad: Mobile Safari, HTML5 <video>, and jquery transitions

    - by justinbach
    I'm building a simple proof-of-concept for an iPad-specific website that would use video transitions to bring users from section to section. For purposes of the proof of concept, each "section" is just an image with a semitransparent content text box positioned above it. There are just 2 sections, "home" and "contact", and they've got a transition video sandwiched between them via z-indexing. The idea for the proof of concept is that clicking on the "home" section causes it to disappear, followed by playback of the transition video, which (upon completion) disappears to reveal the "contact" section. Everything is working fine with this version of the demo on the iPad and on Safari for Windows and OS X. Here's the JS: var myVideo = document.getElementsByTagName('video')[0]; $('document').ready(function() { $('#home').click(function() { $(this).css('display','none'); myVideo.play(); myVideo.addEventListener('ended', function() { $('#transition').css('display','none'); }); }); }); What I'd like to do is use a jQuery fadeOut() effect to fade out the text box prior to starting the video when the "home" section is clicked. The code seems simple enough: $('document').ready(function() { $('#home').click(function() { $('#home-copy').fadeOut('slow', function() { $('#home').css('display','none'); myVideo.play(); myVideo.addEventListener('ended', function() { $('#transition').css('display','none'); $('#home-copy').fadeIn('slow'); }); }); }); }); and it's working exactly as desired on desktop versions of Safari. On the iPad, however, the text box fades out as expected and the home section disappears as well, but the video stubbornly refuses to start playing. I really don't know why this would be the case, but that's what's happening. I'd appreciate any advice you might have! Incidentally, here's the markup: <div id="main-container"> <div id="home-copy"> <h1>Lorem Ipsum Dolor Sit Amet</h1> <p>Donec blandit pharetra luctus. Nam at porttitor odio. Nullam sem orci, venenatis sed pharetra eget, commodo rhoncus quam. Ut euismod vehicula bibendum. Curabitur in magna ante, id fringilla lacus. Nullam id elit eget lacus feugiat porta. Nulla vitae orci vehicula risus sagittis egestas quis sed justo.</p> </div> <div id="home"> <img src="images/home.jpg" width="1152" height="720" /> </div> <video id="transition" src="video/home_to_contact_lo_res.mp4" preload width="1152" height="720"></video> <div id="contact"> <img src="images/contact.jpg" width="1152" height="720" /> </div> </div>

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  • Show google maps on mobile website

    - by GatesReign
    Is it possible to add google maps on a site designed specifically for the iPhone? I have never integrated maps in my websites before, so this question really goes more because of my inexperience. Using basic html and javascript at the moment.

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  • object array mobile development

    - by mixm
    Im currently creating a tile-based game for android. Using java via dalvik JVM. im fretting over a decision to represent objects in a particular map. should i use an id based map (2 dimensional integer array) and place game logic in a separate function in the game engine, or create an object array (2 dimensional array of game objects) and store game logic within the class methods. i am thinking about the cost of object creation and garbage collection vs extensibility.

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  • How to read URDU from url and show it to your mobile using java Me

    - by Basit
    HI, Hope you all will be fine. Actually I m facing a problem. Actually i am using Google translation API. What my application does it connect to CGI-script, i pass value to it using GET then the CGI script connect to Google API, Translate the mesage from english to Urdu and then i retreive it.Here is the code [Java] import java.io.*; import javax.microedition.io.*; import javax.microedition.lcdui.*; import javax.microedition.midlet.*; /** * An example MIDlet to invoke a CGI script (GET method). */ public class InvokeCgiMidlet1 extends MIDlet { private Display display; String url = "http://xxx.xxx.xx.xxx/cgi-bin/api/GT/GT_Send_Msg.cgi?message=my%20name%20is%20basit"; public InvokeCgiMidlet1() { display = Display.getDisplay(this); } /** * Initialization. Invoked when we activate the MIDlet. */ public void startApp() { try { getGrade(url); } catch (IOException e) { System.out.println("IOException " + e); e.printStackTrace(); } } /** * Pause, discontinue .... */ public void pauseApp() { } /** * Destroy must cleanup everything. */ public void destroyApp(boolean unconditional) { } /** * Retrieve a grade.... */ void getGrade(String url) throws IOException { HttpConnection c = null; InputStream is = null; OutputStream os = null; StringBuffer b = new StringBuffer(); TextBox t = null; String response; try { c = (HttpConnection)Connector.open(url, Connector.READ_WRITE); c.setRequestMethod(HttpConnection.GET); c.setRequestProperty("User-Agent","Profile/MIDP-1.0 Confirguration/CLDC-1.0"); c.setRequestProperty("Content-Type","application/x-www-form-urlencoded"); c.setRequestProperty("User-Agent","Profile/MIDP-2.0 Configuration/CLDC-1.1"); c.setRequestProperty("Accept-Charset","UTF-8;q=0.7,*;q=0.7"); c.setRequestProperty("Accept-Encoding","gzip, deflate"); c.setRequestProperty("Accept","text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"); c.setRequestProperty("Content-Language", "en-EN"); os = c.openOutputStream(); Reader r = new InputStreamReader(c.openDataInputStream(), "UTF-8"); int ch; while ((ch = r.read()) != -1) { b.append((char) ch ); //System.out.println((char)ch + "->" + ch + "->" + ch); } t = new TextBox("Final Grades", b.reverse().toString(), 1024, 0); } finally { if(is!= null) { is.close(); } if(os != null) { os.close(); } if(c != null) { c.close(); } } display.setCurrent(t); } } [/Java] The problem is as i told you that the translated text is in Urdu. So when it appear on screen each character is separate like this. ? ?? ? ? ?? . Because i read character by character I want it to appear in proper form like this ??????? So how can i do this. Is there font rendering required. If yes then how can i do it or any other method please hep me. Thanks

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  • Retrieve default camera video extension from Windows Mobile

    - by kornelijepetak
    Is there any way to find out what is the default video extension for camera application? I am using CameraCaptureDialog to make the user use the camera and save the image to a specific file which then I consume in the application. However, there is a problem with the videos. Emulator gives .wmv video file while some devices I've been testing save to mp4 format. Is there any reliable way to find out what is the format in which the phone that is running the application saves the file?

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  • Mobile safari - suppress Unsupported Protocol alert

    - by Juriy
    Hello guys, I'm creating a website for iPhone and i use the native app (cliqcliq Quickpick) to upload photos. I use the script like the following to check if the application is installed. The basic idea is to send user to a custom url, if application is there it is launched, if it is not there the url should be ignored and user is taken to App Store. Below is the script: window.launchQuickpic = function() { var start = new Date(); setTimeout(function() { if (new Date() - start > 2000) { return; } window.location = 'http://www.cliqcliq.com/quickpic/install/'; }, 1000); var getParams = [...]; window.location = 'vquickpic://?' + getParams.join('&'); }; If the native app is not installed I'm getting the alert box saying that Safari does not recognize the custom url. After user clicks "ok" it works as it is supposed to. But the alert is reeealy annoying. I've tried to surround the window.location= code with try/catch. Didn't help.

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  • HTML5 iPhone Safari Mobile visualize something rather than quicktime symbol when creating an audio t

    - by Antonio Murgia
    I'm writing a very simple webpage in html5 for iPhone. the page is this one Not Working Everything works but in the page from the iPhone i see the quicktime logo with a slash on it and if i tap on it the player shows up the play button and in the background there is the quicktime logo. is it possible to replace the logos with a personal image? thank you in advance.

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  • Java mobile: Android or Blackberry?

    - by jpartogi
    Hi all, Most of the questions on SO has been too generic, comparing iPhone, Android and Blackberry all at once. I want to ask your experience between developing on Android and Blackberry. From your experience as Java programmer: Which platform do you enjoy developing on the most? Which API do you find is well written and fun to code? Which development platform that is fun to work with? Which platform do you find most stable and less issues with? Android or Blackberry? Any other noteworthy checklists to share to Java programmers that want to choose whether to develop on Android or Blackberry? Thank you for sharing your experience with us here.

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  • android mobile development performance vs extensibility

    - by mixm
    im developing a game in android, and i've been thinking about subdividing many of the elements of the game (e.g. game objects) into separate classes and sub-classes. but i know that method calls to these objects will cause some overhead. would it be better to improve performance or to improve extensibility?

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  • Resources & Frameworks for mobile development (iphone,android) using HTML5

    - by Pasta
    I am looking for resources to develop HTML5 apps for iphone primarily. Are their frameworks and tools that I can use to get started? I am looking for: Javascript frameworks that help with UI layout Touch based controls for phones Articles on iphone development, best practices, etc. I searched stackoverflow and was not able to come up with a good list of resources. I am looking for examples like these http://jqtouch.com/

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  • HTML5 offline video caching in mobile safari

    - by jj
    Sorry if this gets posted twice, but Safari crashed while posting the first version, and I don't see it in my profile. Anyway I can't seem to get Safari on the iPhone or iPad to offline cache videos. Everything else gets cached just fine when I go offline. The video file is obviously in the manifest, but I just get the broken arrow. Works fine in Safari desktop. Any clues? I've tried both object embed and the video tags.

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  • Devise / Rails 4 Windows mobile authentication failure

    - by Nic Willemse
    Im using devise with a rails 4 application. Authentication works fine on most devices, including some old feature phones. I am however running into problems with the Nokia Lumia. Please see log snippet below. By the looks of things this appears to be a rails issue rather than a devise problem. Please Help! 014-05-30T09:47:38.668478+00:00 app[web.1]: Started POST "/users/sign_in" for 197.111.223.249 at 2014-05-30 09:47:38 +0000 2014-05-30T09:47:38.668505+00:00 app[web.1]: Started POST "/users/sign_in" for 197.111.223.249 at 2014-05-30 09:47:38 +0000 2014-05-30T09:47:38.672961+00:00 app[web.1]: Processing by Devise::SessionsController#create as HTML 2014-05-30T09:47:38.672968+00:00 app[web.1]: Processing by Devise::SessionsController#create as HTML 2014-05-30T09:47:38.674163+00:00 app[web.1]: Can't verify CSRF token authenticity 2014-05-30T09:47:38.673021+00:00 app[web.1]: Parameters: {"utf8"="?", "authenticity_token"="Ckyw9vAfxbgksugLMainfWoG2jRdq7GB5xBBGxqYhCs=", "user"={"email"="", "password"="[FILTERED]", "remember_me"="0"}, "commit"="Sign in"} 2014-05-30T09:47:38.673027+00:00 app[web.1]: Parameters: {"utf8"="?", "authenticity_token"="Ckyw9vAfxbgksugLMainfWoG2jRdq7GB5xBBGxqYhCs=", "user"={"email"="", "password"="[FILTERED]", "remember_me"="0"}, "commit"="Sign in"} 2014-05-30T09:47:38.674170+00:00 app[web.1]: Can't verify CSRF token authenticity 2014-05-30T09:47:38.677792+00:00 app[web.1]: Completed 422 Unprocessable Entity in 5ms 2014-05-30T09:47:38.677799+00:00 app[web.1]: Completed 422 Unprocessable Entity in 5ms 2014-05-30T09:47:38.683294+00:00 app[web.1]: ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken): 2014-05-30T09:47:38.683299+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.1/lib/action_controller/metal/request_forgery_protection.rb:170:in handle_unverified_request' 2014-05-30T09:47:38.683289+00:00 app[web.1]: 2014-05-30T09:47:38.683298+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.1/lib/action_controller/metal/request_forgery_protection.rb:163:inhandle_unverified_request' 2014-05-30T09:47:38.683303+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.1/lib/action_controller/metal/request_forgery_protection.rb:177:in verify_authenticity_token' 2014-05-30T09:47:38.683305+00:00 app[web.1]: vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.1/lib/active_support/callbacks.rb:417:in_run__3672081613755604432__process_action__callbacks' Form : <%= form_for(resource, :as => resource_name, :url => session_path(resource_name), :html => {:class => "form-signin"}) do |f| %> <h2 class="form-signin-heading">Sign in</h2> <%= devise_error_messages! %> <div><%= f.label :email %><br /> <%= f.email_field :email, :autofocus => true, :class=> "form-control" %></div> <div><%= f.label :password %><br /> <%= f.password_field :password , :class=> "form-control"%></div> <% if devise_mapping.rememberable? -%> <div><%= f.check_box :remember_me, :class=> "form-control"%> <%= f.label :remember_me %></div> <% end -%> <div><%= f.submit "Sign in" ,:class => "btn btn-lg btn-primary btn-block"%></div> <input name="authenticity_token" type="hidden" value="<%= form_authenticity_token %>"/> <%= render "devise/shared/links" %> <% end %>

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  • Can't correctly stream x264 video to mobile via RTSP

    - by Andrew
    Hello! I'm trying to stream video compressed with x264 and NeroAAC and hinted with MP4Box. When i'm playing it with VLC player streaming works fine, as expected. When i'm trying to open URL with my HTC Hero, it switches to player mode, then starts "loading video" animation, then after some time it shows "unable to connect to server". Sample movies provided with DSS streamed fine regardless bitrate. I tried few encoding options, but always the same result. I suspect nocabac and level=11 but it didn't changed nothing. Is there some more specific encoding options for such type? Thank You!

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  • The reason for MonadState get and put?

    - by CiscoIPPhone
    I'm reading the Monads chapter in Real World Haskell (chapter 14). A function is defined as follows: type RandomState a = State StdGen a getRandom :: Random a => RandomState a getRandom = get >>= \gen -> let (val, gen')= random gen in put gen' >> return val I don't really understand the purpose of the get and put functions here. I rewrote the function as following which seems to do the same thing and is more concise: getRandom2 :: Random a => RandomState a getRandom2= State $ \ s -> random s So my question is: What is the purpose of get and put?

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