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• In the Mobile and Tablet World, How Much is Too Much?

  - by andrewbrust

  The week of April 26th was a huge one in the world of mobile and tablet devices,  There were so many individual developments, announcements and solidifications of strategy, it’s almost impossible to believe they occurred in the same month, let alone the same week. Things started with Apple and Gizmodo having a Law and Order moment over the latter’s procurement of what appears to be the former’s 4th gen iPhone prototype.  We found out on the 26th that Gizmodo blogger Jason Chen’s apartment was raided by police and, honestly, that was a bit much. But Apple didn’t stop there.  They also published Steve Job’s critique of Adobe Flash and his explanation of Cupertino’s embargo of Flash on iPhones, iPods and iPads.  If you ask me, this too, was a bit much. Apple finished up the week by releasing the 3G version of its iPad product to the US market. I like (iLike?) my WiFi iPad.  The idea of getting a version of it that required a second 3G service monthly subscription, is, well, a bit  much. Microsoft was in the news too.  It killed a project it hadn’t even acknowledged the existence of: the Courier tablet.  That’s a bit much too.  If a tree falls in the woods, and Microsoft says they can’t hear it anyway, could they really have chopped it down? Maybe Microsoft Research should have licensed some of Courier’s technology from other parts of Microsoft.  Then maybe they could have kept the product alive.  Ask HTC: they’re going to be licensing technology from Microsoft because Redmond insists that Google’s Android operating system infringes on certain of their patents.  And since HTC now builds a number of handsets on Android, instead of being beholden, as they once were, to Windows Mobile, that means they can keep making their products.  Why does HTC have to pay the royalties, and not Google?  Maybe Microsoft decided that going after GOOG would have been a bit much, even for them. The agreement came not a moment to soon: HTC released their “Droid Incredible” (that name’s a bit much), an Android 2.1 handset with amazing hardware and HTC’s own Sense UI, on April 30th (this past Friday). This phone is very well-reviewed.  Maybe that’s why Google basically decided to beg off introducing a version of its Nexus One phone (also manufactured by HTC) on the Verizon Wireless network.  Google backing down?  That’s incredible, if not also a bit much. And that brings us to HP.  Which this week announced its acquisition of Palm and its webOS mobile phone touch-oriented operating system.  HP also killed its own Slate initiative.  Apparently HP realized that Windows 7, even with a proprietary HP touch UI added on top, is no match for the iPad.  I’m guessing they think webOS might work a bit better,  And I’m wondering if HP even wants to use webOS for phone handsets, beyond the Pre and Pixi.  Using it just for slate devices would be a bit extreme, but maybe not too much. Honestly, this was not Microsoft’s best week.  It killed a project and a close partner did likewise.  Then that same partner bought a competing OS product, while another partner released their new product that uses yet another competing OS platform. What did Microsoft actually produce this past week? An update to its Windows Phone 7 developer tools that actually works with the version of Visual Studio 2010 released on April 12th, and the version of Silverlight released three days later. That took three weeks to get synced up, and that’s a bit much too. But at least it happened. Windows Phone 7 is Microsoft’s best hope for a comeback in the SmartPhone market and to offer a credible touch-based tablet device.  This week, two of Microsoft’s slate initiatives died, and its only mobile phone victory was around its competitor’s operating system.  I hope the new platform gets Redmond out of the PC ghetto and into the classes of device that get people really excited today.  If it can’t, that would be a bit much; probably too much.  And, as the signs at the Lonestar Cafe in NYC used to say, too much ain’t enough.

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• Oracle CRM On Demand Release 24 is Generally Available

  - by Richard Lefebvre

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 We are pleased to announce that Oracle CRM On Demand Release 24 is Generally Available as of October 25, 2013 Get smarter, more productive and the best value with Oracle CRM On Demand Release 24. Oracle CRM On Demand continues to be the most complete Software-as-a-Service (SaaS) CRM solution available. Now, with Release 24, organizations of all types and sizes benefit from actionable insight anywhere, anytime, as well as key enhancements in mobility, embedded social, analytics, integration and extensibility, and ease of use.Next Generation Mobile and Desktop Solutions : Oracle CRM On Demand Release 24 offers a complete set of mobile and desktop solutions that improve productivity by enabling reps to access and update information anywhere, anytime. Capabilities include: Oracle CRM On Demand Disconnected Mobile Sales (DMS) – A disconnected native iPad solution, DMS has been further streamlined mobile sales process by adding Structured Product Messaging to record brand specific call objectives, enhancements in HTML5 eDetailing including message response tracking and improvements in administration and configuration such as more field management options for read only fields, role management and enhanced logging. Oracle CRM On Demand Connected Mobile Sales. This add-on mobile service provides a configurable mobile solution on iOS, BlackBerry and now Android devices. You can access data from CRM On Demand in real time with a rich, native user experience, that is comfortable and familiar to current iOS, BlackBerry and Android users. New features also include Single Sign On to enhance security for mobile users.  Oracle CRM On Demand Desktop: This application centralizes essential CRM information in the familiar Microsoft Outlook environment,increasing user adoption and decreasing training costs. Users can manage CRM data while disconnected, then synchronize bi-directionally when they are back on the network. New in Oracle CRM On Demand Desktop Version 3 is the ability to synchronize by Books of Business, and improved Online Lookup. Mobile Browser Support: The following mobile device browsers are now supported: Apple iPhone, Apple iPad, Windows 8 Tablets, and Google Android. Leverage the Social Enterprise Engaging customers via social channels is rapidly becoming a significant key to enhanced customer experience as it provides proactive customer service, targeted messaging and greater intimacy throughout the entire customer lifecycle. Listening to customers on the social channels can identify a customers’ sphere of influence and the real value they bring to their organization, or the impact they can have on the opportunity. Servicing the customer’s need is the first step towards loyalty to a brand, integrating with social channels allows us to maximize brand affinity and virally expand customer engagements thus increasing revenue. Oracle CRM On Demand is leveraging the Social Enterprise through its integration with Oracle’s Social Relationship Management (SRM) product suite by providing out-of-the-box integration with Social Engagement and Monitoring (SEM), Social Marketing (SM) and Oracle Social Network (OSN). With Oracle CRM On Demand Release 24, users are able to create a service request from a social post via SEM and have leads entered on a SM lead form automatically entered into Oracle CRM On Demand along with the campaign, streamlining the lead qualification process. Get Smarter with Actionable Insight The difference between making good decisions and great decisions depends heavily upon the quality, structure, and availability of information at hand. Oracle CRM On Demand Release 24 expands upon its industry-leading analytics capabilities to provide greater business insight than ever before. New capabilities include flexible permissions on analytics reports folders, allowing for read only access to reports, and additional field and object coverage. Get More Productive with Powerful Tools Oracle CRM On Demand Release 24 introduces a new set of powerful capabilities designed to maximize productivity. A significant new feature for customizing Oracle CRM On Demand is a JavaScript API. The JS API allows customers to add new buttons, suppress existing buttons and even change what happens when a user clicks an existing button. Other usability enhancements, such as personalized related information applets, extended case insensitive search provide users with better, more intuitive, experience. Additional privileges for viewing private activities and notes allow administrators to reassign records as needed, and Custom Object management. Workflow has been added to the Order Item object; and now tasks can be assigned to a relative user, such as an Account Owner, allowing more complex business processes to be automated and adhered to. Get the Best Value Oracle CRM On Demand delivers unprecedented value with the broadest set of capabilities from a single-provider solution, the industry’s lowest total cost of ownership, the most on-demand deployment options, the deepest CRM expertise and experience of any CRM provider, and the most secure CRM in the cloud. With Release 24, Oracle CRM On Demand now includes even more enterprise-grade security, integration, and extensibility features, along with enhanced industry editions to save you time and money. New features include: Business Process Administration: A new privilege has been added that allows administrators to override a Business Process Administration rule.This privilege permits users to edit a locked record, or unlock a record, in the event of a material change that needs to be reflected per corporatepolicy. Additionally, the Products Detailed object has been added to Business Process Administration, enabling record locking and logic to be applied. Expanded Integration: Oracle continues to improve Web Services each release, by adding more object coverage enabling customers and partners to easily integrate with CRM On Demand. Bottom Line Oracle CRM On Demand Release 24 enables organizations to get smarter, get more productive, and get the best value, period. For more information on Oracle CRM On Demand Release 24, please visit oracle.com/crmondemand

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• Error in my Separating Axis Theorem collision code

  - by Holly

  The only collision experience i've had was with simple rectangles, i wanted to find something that would allow me to define polygonal areas for collision and have been trying to make sense of SAT using these two links Though i'm a bit iffy with the math for the most part i feel like i understand the theory! Except my implementation somewhere down the line must be off as: (excuse the hideous font) As mentioned above i have defined a CollisionPolygon class where most of my theory is implemented and then have a helper class called Vect which was meant to be for Vectors but has also been used to contain a vertex given that both just have two float values. I've tried stepping through the function and inspecting the values to solve things but given so many axes and vectors and new math to work out as i go i'm struggling to find the erroneous calculation(s) and would really appreciate any help. Apologies if this is not suitable as a question! CollisionPolygon.java: package biz.hireholly.gameplay; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import biz.hireholly.gameplay.Types.Vect; public class CollisionPolygon { Paint paint; private Vect[] vertices; private Vect[] separationAxes; int x; int y; CollisionPolygon(Vect[] vertices){ this.vertices = vertices; //compute edges and separations axes separationAxes = new Vect[vertices.length]; for (int i = 0; i < vertices.length; i++) { // get the current vertex Vect p1 = vertices[i]; // get the next vertex Vect p2 = vertices[i + 1 == vertices.length ? 0 : i + 1]; // subtract the two to get the edge vector Vect edge = p1.subtract(p2); // get either perpendicular vector Vect normal = edge.perp(); // the perp method is just (x, y) => (-y, x) or (y, -x) separationAxes[i] = normal; } paint = new Paint(); paint.setColor(Color.RED); } public void draw(Canvas c, int xPos, int yPos){ for (int i = 0; i < vertices.length; i++) { Vect v1 = vertices[i]; Vect v2 = vertices[i + 1 == vertices.length ? 0 : i + 1]; c.drawLine( xPos + v1.x, yPos + v1.y, xPos + v2.x, yPos + v2.y, paint); } } public void update(int xPos, int yPos){ x = xPos; y = yPos; } /* consider changing to a static function */ public boolean intersects(CollisionPolygon p){ // loop over this polygons separation exes for (Vect axis : separationAxes) { // project both shapes onto the axis Vect p1 = this.minMaxProjection(axis); Vect p2 = p.minMaxProjection(axis); // do the projections overlap? if (!p1.overlap(p2)) { // then we can guarantee that the shapes do not overlap return false; } } // loop over the other polygons separation axes Vect[] sepAxesOther = p.getSeparationAxes(); for (Vect axis : sepAxesOther) { // project both shapes onto the axis Vect p1 = this.minMaxProjection(axis); Vect p2 = p.minMaxProjection(axis); // do the projections overlap? if (!p1.overlap(p2)) { // then we can guarantee that the shapes do not overlap return false; } } // if we get here then we know that every axis had overlap on it // so we can guarantee an intersection return true; } /* Note projections wont actually be acurate if the axes aren't normalised * but that's not necessary since we just need a boolean return from our * intersects not a Minimum Translation Vector. */ private Vect minMaxProjection(Vect axis) { float min = axis.dot(new Vect(vertices[0].x+x, vertices[0].y+y)); float max = min; for (int i = 1; i < vertices.length; i++) { float p = axis.dot(new Vect(vertices[i].x+x, vertices[i].y+y)); if (p < min) { min = p; } else if (p > max) { max = p; } } Vect minMaxProj = new Vect(min, max); return minMaxProj; } public Vect[] getSeparationAxes() { return separationAxes; } public Vect[] getVertices() { return vertices; } } Vect.java: package biz.hireholly.gameplay.Types; /* NOTE: Can also be used to hold vertices! Projections, coordinates ect */ public class Vect{ public float x; public float y; public Vect(float x, float y){ this.x = x; this.y = y; } public Vect perp() { return new Vect(-y, x); } public Vect subtract(Vect other) { return new Vect(x - other.x, y - other.y); } public boolean overlap(Vect other) { if(y > other.x && other.y > x){ return true; } return false; } /* used specifically for my SAT implementation which i'm figuring out as i go, * references for later.. * http://www.gamedev.net/page/resources/_/technical/game-programming/2d-rotated-rectangle-collision-r2604 * http://www.codezealot.org/archives/55 */ public float scalarDotProjection(Vect other) { //multiplier = dot product / length^2 float multiplier = dot(other) / (x*x + y*y); //to get the x/y of the projection vector multiply by x/y of axis float projX = multiplier * x; float projY = multiplier * y; //we want to return the dot product of the projection, it's meaningless but useful in our SAT case return dot(new Vect(projX,projY)); } public float dot(Vect other){ return (other.x*x + other.y*y); } }

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• Issue with DFS imlemtation in objetive-c

  - by Hemant

  i am trying to to do something like this Below is my code: -(id) init{ if( (self=[super init]) ) { bubbles_Arr = [[NSMutableArray alloc] initWithCapacity: 9]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"1",@"1",@"1",@"1",@"1",nil] atIndex:0]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"3",@"3",@"5",@"5",@"1",nil] atIndex:1]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"5",@"3",@"5",@"3",@"1",nil] atIndex:2]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"5",@"3",@"5",@"3",@"1",nil] atIndex:3]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"1",@"1",@"1",@"1",@"1",nil] atIndex:4]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"5",@"5",@"3",@"5",@"1",nil] atIndex:5]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"5",@"5",@"5",@"5",@"5",nil] atIndex:6]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"5",@"5",@"5",@"5",@"5",nil] atIndex:7]; [bubbles_Arr insertObject:[NSMutableArray arrayWithObjects:@"5",@"5",@"5",@"5",@"5",nil] atIndex:8]; NOCOLOR = @"-1"; R = 9; C = 5; [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(testting) userInfo:Nil repeats:NO]; } return self; } -(void)testting{ // NSLog(@"dataArray---- %@",dataArray.description); int startR = 0; int startC = 0; int color = 1 ;// red // NSString *color = @"5"; //reset visited matrix to false. for(int i = 0; i < R; i++) for(int j = 0; j < C; j++) visited[i][j] = FALSE; //reset count count = 0; [self dfs:startR :startC :color :false]; NSLog(@"count--- %d",count); NSLog(@"test--- %@",bubbles_Arr); } -(void)dfs:(int)ro:(int)co:(int)colori:(BOOL)set{ for(int dr = -1; dr <= 1; dr++) for(int dc = -1; dc <= 1; dc++) if((dr == 0 ^ dc == 0) && [self ok:ro+dr :co+dc]) // 4 neighbors { int nr = ro+dr; int nc = co+dc; NSLog(@"-- %d ---- %d",[[[bubbles_Arr objectAtIndex:nr] objectAtIndex:nc] integerValue],colori); if ((([[[bubbles_Arr objectAtIndex:nr] objectAtIndex:nc] integerValue]==1 || [[[bubbles_Arr objectAtIndex:nr] objectAtIndex:nc] isEqualToString:@"1"]) && !visited[nr][nc])) { visited[nr][nc] = true; count++; [self dfs:nr :nc :colori :set]; if(count>2) { [[bubbles_Arr objectAtIndex:nr] replaceObjectAtIndex:nc withObject:NOCOLOR]; [bubbles[nc+1][nr+1] setTexture:[[CCTextureCache sharedTextureCache] addImage:@"gray_tiger.png"]]; } } } } -(BOOL)ok:(int)r:(int)c{ return r >= 0 && r < R && c >= 0 && c < C; } But it's only working for left to right,not working for right to left. And it is also skipping first object. Thanks in advance.

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• Examples of bad variable names and reasons [on hold]

  - by user470184

  I'll start with a class in the jdk package : public final class Sdp { should be : public final class SocketsDirectProtocol { Sdp is class name, this is ambigious, should be : Class<?> cl = Class.forName("java.net.SdpSocketImpl", true, null); should be : Class<?> clazz = Class.forName("java.net.SdpSocketImpl", true, null); cl is ambiguous private static void setAccessible(final AccessibleObject o) { should be : private static void setAccessible(final AccessibleObject accessibleObject) { There are various other examples in this class, do you have similar and/or differing examples of variables that were named badly ? package com.oracle.net; public final class Sdp { private Sdp() { } /** * The package-privage ServerSocket(SocketImpl) constructor */ private static final Constructor<ServerSocket> serverSocketCtor; static { try { serverSocketCtor = (Constructor<ServerSocket>) ServerSocket.class.getDeclaredConstructor(SocketImpl.class); setAccessible(serverSocketCtor); } catch (NoSuchMethodException e) { throw new AssertionError(e); } } /** * The package-private SdpSocketImpl() constructor */ private static final Constructor<SocketImpl> socketImplCtor; static { try { Class<?> cl = Class.forName("java.net.SdpSocketImpl", true, null); socketImplCtor = (Constructor<SocketImpl>)cl.getDeclaredConstructor(); setAccessible(socketImplCtor); } catch (ClassNotFoundException e) { throw new AssertionError(e); } catch (NoSuchMethodException e) { throw new AssertionError(e); } } private static void setAccessible(final AccessibleObject o) { AccessController.doPrivileged(new PrivilegedAction<Void>() { public Void run() { o.setAccessible(true); return null; } }); } /** * SDP enabled Socket. */ private static class SdpSocket extends Socket { SdpSocket(SocketImpl impl) throws SocketException { super(impl); } } /** * Creates a SDP enabled SocketImpl */ private static SocketImpl createSocketImpl() { try { return socketImplCtor.newInstance(); } catch (InstantiationException x) { throw new AssertionError(x); } catch (IllegalAccessException x) { throw new AssertionError(x); } catch (InvocationTargetException x) { throw new AssertionError(x); } } /** * Creates an unconnected and unbound SDP socket. The {@code Socket} is * associated with a {@link java.net.SocketImpl} of the system-default type. * * @return a new Socket * * @throws UnsupportedOperationException * If SDP is not supported * @throws IOException * If an I/O error occurs */ public static Socket openSocket() throws IOException { SocketImpl impl = createSocketImpl(); return new SdpSocket(impl); } /** * Creates an unbound SDP server socket. The {@code ServerSocket} is * associated with a {@link java.net.SocketImpl} of the system-default type. * * @return a new ServerSocket * * @throws UnsupportedOperationException * If SDP is not supported * @throws IOException * If an I/O error occurs */ public static ServerSocket openServerSocket() throws IOException { // create ServerSocket via package-private constructor SocketImpl impl = createSocketImpl(); try { return serverSocketCtor.newInstance(impl); } catch (IllegalAccessException x) { throw new AssertionError(x); } catch (InstantiationException x) { throw new AssertionError(x); } catch (InvocationTargetException x) { Throwable cause = x.getCause(); if (cause instanceof IOException) throw (IOException)cause; if (cause instanceof RuntimeException) throw (RuntimeException)cause; throw new RuntimeException(x); } } /** * Opens a socket channel to a SDP socket. * * <p> The channel will be associated with the system-wide default * {@link java.nio.channels.spi.SelectorProvider SelectorProvider}. * * @return a new SocketChannel * * @throws UnsupportedOperationException * If SDP is not supported or not supported by the default selector * provider * @throws IOException * If an I/O error occurs. */ public static SocketChannel openSocketChannel() throws IOException { FileDescriptor fd = SdpSupport.createSocket(); return sun.nio.ch.Secrets.newSocketChannel(fd); } /** * Opens a socket channel to a SDP socket. * * <p> The channel will be associated with the system-wide default * {@link java.nio.channels.spi.SelectorProvider SelectorProvider}. * * @return a new ServerSocketChannel * * @throws UnsupportedOperationException * If SDP is not supported or not supported by the default selector * provider * @throws IOException * If an I/O error occurs */ public static ServerSocketChannel openServerSocketChannel() throws IOException { FileDescriptor fd = SdpSupport.createSocket(); return sun.nio.ch.Secrets.newServerSocketChannel(fd); } }

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• What is Happening vs. What is Interesting

  - by Geertjan

  Devoxx 2011 was yet another confirmation that all development everywhere is either on the web or on mobile phones. Whether you looked at the conference schedule or attended sessions or talked to speakers at any point at all, it was very clear that no development whatsoever is done anymore on the desktop. In fact, that's something Tim Bray himself told me to my face at the speakers dinner. No new developments of any kind are happening on the desktop. Everyone who is currently on the desktop is working overtime to move all of their applications to the web. They're probably also creating a small subset of their application on an Android tablet, with an even smaller subset on their Android phone. Then you scratch that monolithic surface and find some interesting results. Without naming any names, I asked one of these prominent "ah, forget about the desktop" people at the Devoxx speakers dinner (and I have a witness): "Yes, the desktop is dead, but what about air traffic control, stock trading, oil analysis, risk management applications? In fact, what about any back office application that needs to be usable across all operating systems? Here there is no concern whatsoever with 100% accessibility which is, after all, the only thing that the web has over the desktop, (except when there's a network failure, of course, or when you find yourself in the 3/4 of the world where there's bandwidth problems)? There are 1000's of hidden applications out there that have processing requirements, security requirements, and the requirement that they'll be available even when the network is down or even completely unavailable. Isn't that a valid use case and aren't there 1000's of applications that fall into this so-called niche category? Are you not, in fact, confusing consumer applications, which are increasingly web-based and mobile-based, with high-end corporate applications, which typically need to do massive processing, of one kind or another, for which the web and mobile worlds are completely unsuited?" And you will not believe what the reply to the above question was. (Again, I have a witness to this discussion.) But here it is: "Yes. But those applications are not interesting. I do not want to spend any of my time or work in any way on those applications. They are boring." I'm sad to say that the leaders of the software development community, including those in the Java world, either share the above opinion or are led by it. Because they find something that is not new to be boring, they move on to what is interesting and start talking like the supposedly-boring developments don't even exist. (Kind of like a rapper pretending classical music doesn't exist.) Time and time again I find myself giving Java desktop development courses (at companies, i.e., not hobbyists, or students, but companies, i.e., the places where dollars are earned), where developers say to me: "The course you're giving about creating cross-platform, loosely coupled, and highly cohesive applications is really useful to us. Why do we never find information about this topic at conferences? Why can we never attend a session at a conference where the story about pluggable cross-platform Java is told? Why do we get the impression that we are uncool because we're not on the web and because we're not on a mobile phone, while the reason for that is because we're creating $1000,000 simulation software which has nothing to gain from being on the web or on the mobile phone?" And then I say: "Because nobody knows you exist. Because you're not submitting abstracts to conferences about your very interesting use cases. And because conferences tend to focus on what is new, which tends to be web related (especially HTML 5) or mobile related (especially Android). Because you're not taking the responsibility on yourself to tell the real stories about the real applications being developed all the time and every day. Because you yourself think your work is boring, while in fact it is fascinating. Because desktop developers are working from 9 to 5 on the desktop, in secure environments, such as banks and defense, where you can't spend time, nor have the interest in, blogging your latest tip or trick, as opposed to web developers, who tend to spend a lot of time on the web anyway and are therefore much more inclined to create buzz about the kind of work they're doing." So, next time you look at a conference program and wonder why there's no stories about large desktop development projects in the program, here's the short answer: "No one is going to put those items on the program until you start submitting those kinds of sessions. And until you start blogging. Until you start creating the buzz that the web developers have been creating around their work for the past 10 years or so. And, yes, indeed, programmers get the conference they deserve." And what about Tim Bray? Ask yourself, as Google's lead web technology evangelist, how many desktop developers do you think he talks to and, more generally, what his frame of reference is and what, clearly, he considers to be most interesting.

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• If I were in a Silverlight focus group, here is ten things I would say.

  - by mbcrump

  Silverlight is a great product right off the shelf. I use it, love it and spend a lot of time helping the community understand it. This however, doesn’t mean that I don’t think that it can get better. If I were invited to a Microsoft Focus Group about Silverlight here is 10 things I would say:  We need more navigation templates. I’ve found (4) templates that Microsoft has released (Cosmo, Windows 7, Accent and JetPack). This number needs to be around 16. In order to get more people developing for Silverlight, we need to give them a variety of templates to get them off the ground quickly. Silverlight needs to ship with the next version of Windows. At least version 4 needs to be pre-installed on Windows going forward. It’s small, in its own sandbox and I cannot find a reason for it not to be included. Silverlight needs to run on more platforms.  iOS and Android are the key here. I think Microsoft should shoot for Android first since I believe Android will take the lead in the mobile market (at least for the short-term). It would also be great to see Microsoft use Silverlight as the focus on their new tablets / “AppleTV”. I would even invest in getting it working with Kinect. When creating a new project in Silverlight, we should have the option to create a Unit Test. Most Silverlight developers are not unit testing. If this is surprising to you then you need to get out and talk to more developers. I partially blame this on Microsoft. When you create a new ASP.NET MVC application, you simply put a check to create a Unit Test project. We need the same thing for Silverlight. We should steer the developer into the right direction. Design patterns such as MVVM need to be easier to implement in Silverlight solutions.  I’d go so far as to say that MVVM Light should ship with Visual Studio. With the project / item templates and code snippets, Laurent puts you into the right direction. This is the way that it should have been. Easy for the 9-5 developer to grasp. I believe the majority of developers use code behind because that’s what is in all the demos provided by Microsoft. They are not trying to write sucky code it is that they simply don’t know a better way.  The XAP Files should be obfuscated/unused references deleted by default when in “Release” mode. A better Silverlight experience starts with a smaller XAP file. The less that a user has to download is the better, even with the majority of people on broadband. I would also recommend built-in obfuscation by Microsoft. People are paranoid that they can rename the .zip and run it through reflector. Get rid of the boring install experiences. Here is a great write up on what I’m talking about. The default “Install Silverlight” and “Loading screens” suck. They suck bad. We need a choice of templates that a professional designer has created.  Silverlight needs to supports more image formats. For example: it would be great to use .gif’s without converting them to .png.    Switching between Blend 4 and VS2010 to develop a Silverlight application is a pain. Probably one of the biggest issues that I can’t think of a good solution for. It would be nice if VS2012 had the best of both worlds and you never have to leave VS. We need reporting controls with SSRS included with the Silverlight Toolkit. I can’t think of another control that we need built into the toolkit. It would also be helpful to have export to .xls, .pdf and .doc included with the control. I hope that this post will at least get a few people talking. Who knows, Microsoft could be working on these things right now. Thanks for reading!  Subscribe to my feed CodeProject

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• iPhone SDK 3.2 UIGestureRecognizer interfering with UIView animations?

  - by Brian Cooley

  Are there known issues with gesture recognizers and the UIView class methods for animation? I am having problems with a sequence of animations on a UIImageView from UIGestureRecognizer callback. If the sequence of animations is started from a standard callback like TouchUpInside, the animation works fine. If it is started via the UILongPressGestureRecognizer, then the first animation jumps to the end and the second animation immediately begins. Here's a sample that illustrates my problem. In the .xib for the project, I have a UIImageView that is connected to the viewToMove IBOutlet. I also have a UIButton connected to the startButton IBOutlet, and I have connected its TouchUpInside action to the startButtonClicked IBAction. The TouchUpInside action works as I want it to, but the longPressGestureRecognizer skips to the end of the first animation after about half a second. When I NSLog the second animation (animateTo200) I can see that it is called twice when a long press starts the animation but only once when the button's TouchUpInside action starts the animation. - (void)viewDidLoad { [super viewDidLoad]; UILongPressGestureRecognizer *longPressRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(startButtonClicked)]; NSArray *recognizerArray = [[NSArray alloc] initWithObjects:longPressRecognizer, nil]; [startButton setGestureRecognizers:recognizerArray]; [longPressRecognizer release]; [recognizerArray release]; } -(IBAction)startButtonClicked { if (viewToMove.center.x < 150) { [self animateTo200:@"Right to left" finished:nil context:nil]; } else { [self animateTo100:@"Right to left" finished:nil context:nil]; } } -(void)animateTo100:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context { [UIView beginAnimations:@"Right to left" context:nil]; [UIView setAnimationDuration:4]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(animateTo200:finished:context:)]; viewToMove.center = CGPointMake(100.0, 100.0); [UIView commitAnimations]; } -(void)animateTo200:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context { [UIView beginAnimations:@"Left to right" context:nil]; [UIView setAnimationDuration:4]; viewToMove.center = CGPointMake(200.0, 200.0); [UIView commitAnimations]; }

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• iPhone: how to use performSelector:onThread:withObject:waitUntilDone: method?

  - by Michael Kessler

  Hi all, I am trying to use a separate thread for working with some API. The problem is that I am not able to use performSelector:onThread:withObject:waitUntilDone: method with a thread that I' instantiated for this. My code: @interface MyObject : NSObject { NSThread *_myThread; } @property(nonatomic, retain) NSThread *myThread; @end @implementation MyObject @synthesize myThread = _myThread; - (NSThread *)myThread { if (_myThread == nil) { NSThread *myThreadTemp = [[NSThread alloc] init]; [myThreadTemp start]; self. myThread = myThreadTemp; [myThreadTemp release]; } return _myThread; } - (id)init { if (self = [super init]) { [self performSelector:@selector(privateInit:) onThread:[self myThread] withObject:nil waitUntilDone:NO]; } return self; } - (void)privateInit:(id)object { NSLog(@"MyObject - privateInit start"); } - (void)dealloc { [_myThread release]; _myThread = nil; [super dealloc]; } @end "MyObject - privateInit start" is never printed. What am I missing? I tried to instantiate the thread with target and selector, tried to wait for method execution completion (waitUntilDone:YES). Nothing helps. UPDATE: I don't need this multithreading for separating costly operations to another thread. In this case I could use the performSelectorInBackground as mentioned in few answers. The main reason for this separate thread is the need to perform all the actions in the API (TTS by Loquendo) from one single thread. Meaning that I have to create an instance of the TTS object and call methods on that object from the same thread all the time.

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• Iphone page curl effect

  - by dragon

  I am using this code for Page curl effect ....Its work fine in simulator and device... But its not (setType:@"pageCurl") apple documented api , this caused it to be rejected by the iPhone Developer Program during the App Store review process: animation = [CATransition animation]; [animation setDelegate:self]; [animation setDuration:1.0f]; animation.startProgress = 0.5; animation.endProgress = 1; [animation setTimingFunction:UIViewAnimationCurveEaseInOut]; [animation setType:@"pageCurl"]; [animation setSubtype:@"fromRight"]; [animation setRemovedOnCompletion:NO]; [animation setFillMode: @"extended"]; [animation setRemovedOnCompletion: NO]; [[imageView layer] addAnimation:animation forKey:@"pageFlipAnimation"]; So i changed and using like this [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:1]; [UIView setAnimationDelegate:self]; [UIView setAnimationBeginsFromCurrentState:YES]; [UIView setAnimationCurve:UIViewAnimationCurveLinear]; [UIView setAnimationWillStartSelector:@selector(transitionWillStart:finished:context:)]; [UIView setAnimationDidStopSelector:@selector(transitionDidStop:finished:context:)]; // other animation properties [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:imageView cache:YES]; // set view properties [UIView commitAnimations]; In this above code i want to stop the page curl effect at midway.. But i cant stop it in midway like map applications in ipod... Is this any fix for this? or Is there any apple documented methods used for page curl effect in ipod touch? I am searching lot. but didnt get any answer ? can anyone help me? Thanks in advance..plz

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• Facebook, iframe app, fb:request-form, action attribute problem

  - by Unreality

  Hi all, I'm making a facebook iframe application I'm making a request form with my own form data. What should I do in order to process the data? If I put action="http://apps.facebook.com/[appName]/abc.php" , i.e. <fb:serverfbml> <script type="text/fbml"> <fb:fbml> <fb:request-form action="http://apps.facebook.com/[appName]/abc.php" method="post" type="abc" content="abc"> <textarea name="pm" fb_protected="true" ></textarea> <fb:multi-friend-selector showborder="false" max="35" actiontext="test" email_invite="true" bypass="cancel" /> </fb:request-form> </fb:fbml> </script> </fb:serverfbml> Then the result is funny... A facebook page inside the facebook app's iframe ! but if I put action="http://[my own domain / facebook connect url]/abc.php" , i.e. <fb:serverfbml> <script type="text/fbml"> <fb:fbml> <fb:request-form action="http://[my own domain / facebook connect url]/abc.php" method="post" type="abc" content="abc"> <textarea name="pm" fb_protected="true" ></textarea> <fb:multi-friend-selector showborder="false" max="35" actiontext="test" email_invite="true" bypass="cancel" /> </fb:request-form> </fb:fbml> </script> </fb:serverfbml> Then the result page will be rendered WITHOUT facebook template (that means losing all top facebook banner and bottom facebook bar like the facebook chats etc) Anyone knows what's wrong? Thanks a lot for reading

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• one more question on sqlite3 for iphone..sorry*

  - by summer

  let's say i am trying to save an image selected from photo library to database..is the following code correct? Snap.m - (void) addSnap { if(addStmt == nil) { const char *sql = "insert into Snap(snapTitle, snapDesc, snapImage) Values(?, ?, ?)"; if(sqlite3_prepare_v2(database, sql, -1, &addStmt, NULL) != SQLITE_OK) NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(database)); } sqlite3_bind_text(addStmt, 1, [snapTitle UTF8String], -1, SQLITE_TRANSIENT);//bind titleSnap to insert statement sqlite3_bind_text(addStmt, 2, [snapDescription UTF8String], -2, SQLITE_TRANSIENT); sqlite3_bind_int(addStmt, 3, snapID); NSData *imgData = UIImagePNGRepresentation(self.snapImage); int returnValue = -1; if(self.snapImage != nil) returnValue = sqlite3_bind_blob(addStmt, 3, [imgData bytes], [imgData length], SQLITE_TRANSIENT); else returnValue = sqlite3_bind_blob(addStmt, 3, nil, -1, NULL); sqlite3_bind_int(addStmt, 4, snapID); if(returnValue != SQLITE_OK) NSLog(@"Not OK!!!"); if(SQLITE_DONE != sqlite3_step(addStmt))//execute step statement if it return SQLITE_DONE NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(database)); else //sqlite3_last_insert_rowid snapID = sqlite3_last_insert_rowid(database);//get primary key for the row which was inserted //reset add statement sqlite3_reset(addStmt); } - (void)setSnapImage:(UIImageView *)theSnapImage { self.isDirty = YES; [snapImage release]; snapImage = [theSnapImage copy]; } then to get the "object" i use.. snap2playObj.snapImage = imageView.image; i am using UIImageView by the way..my error message.. -[UIImage copyWithZone:]: unrecognized selector sent to instance 0xd74750 2010-03-18 16:22:27.808 Snap2Play[68317:20b] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[UIImage copyWithZone:]: unrecognized selector sent to instance 0xd74750'

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• JQuery tools.scrollable conflict with navbar Ajax in CakePHP

  - by user269098

  In our views/layout/default.ctp file we have an element that's used to implement a cascading combo select box which uses JQuery ajax to update the fields. This selector is part of our navbar and is loaded on every page of the site. The default.ctp has these includes in the : <?php echo $html->charset(); ?> <title><?php echo $title_for_layout; //if(Configure::read('debug')) //echo "cake: " . Configure::version(); ?></title> <?php echo $html->css('style'); echo $javascript->link('jquery', true); echo $javascript->link('jquery.form', true); echo $javascript->link('jquery.url', true); echo $javascript->link('navbar', true); echo $html->script('tools.expose-1.0.3.js', array('inline' => false)); //echo $scripts_for_layout; ?> On the views/cars/index.ctp page we have: echo $javascript->link('tools.tabs-1.0.1', true); echo $javascript->link('tools.overlay-1.0.4', true); echo $javascript->link('jquery.form', true); echo $javascript->link('tools.scrollable-1.0.5', true); The issue is that on every other page the navbar combo box selector works. However, on the cars/index.ctp it doesn't work. It only works when we comment out the 'tools.scrollable' include. Any ideas why there is this conflict? We have been stuck on this problem for months...

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• Can you force a MPMoviePlayerPlaybackDidFinishNotification ?

  - by Jonathan

  Hi, I have several movies that are played and presented using this code. As you can see I also have removed the default movie controls and have added a custom overlay which essentially just stops the video. Here is my problem... When I stop the movie with my custom overlay button, I don't seem to be getting the 'MPMoviePlayerPlaybackDidFinishNotification' Note: everything works normal if I let the movie play through and it stop by itself. Is the any way of 'forcing' the PlaybackDidFinish notification? Can I do something like this [self moviePlayBackDidFinish:something]; ? Thank You! - (void) playMovie { NSString *path = [[NSBundle mainBundle] pathForResource:@"movie_frog" ofType:@"m4v"]; NSURL *url = [NSURL fileURLWithPath:path]; MPMoviePlayerController *mp = [[MPMoviePlayerController alloc] initWithContentURL:url]; if(mp) { self.myMoviePlayer = mp; [mp release]; //movie view [self.view addSubview:myMoviePlayer.view]; myMoviePlayer.view.frame = CGRectMake(0.0,0.0,480,320); self.myMoviePlayer.controlStyle = MPMovieControlStyleNone; [self.myMoviePlayer play]; //videoNav _videoNav = [[videoNav alloc] initWithNibName:@"videoNav" bundle:nil]; [self.view addSubview:_videoNav.view]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil]; } }

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• Failed to set the initialPlaybackTime for a MPMoviePlayerController when recreating it in the second

  - by vicky

  Hi, everyone. It's really wired. When at the first time a MPMoviePlayerController (e.g., theMovie) is created, its initialPlaybackTime can be set successfully. But when theMoive is released and re-create a new MPMoviePlayerController, its intialPlaybackTime can not be set correctly, actually the movie always plays from the start. The code is as follows. -(void)initAndPlayMovie:(NSURL *)movieURL { MPMoviePlayerController *theMovie = [[MPMoviePlayerController alloc] initWithContentURL:movieURL]; // create a notification for moviePlaybackFinish [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:theMovie]; theMovie.initialPlaybackTime = 15; [theMovie setScalingMode:MPMovieScalingModeAspectFill]; [theMovie play];} -(void) moviePlayBackDidFinish:(NSNotification*)notification { MPMoviePlayerController * theMovie = [notification object]; [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:theMovie]; [theMovie release]; [self initAndPlayMovie:[self getMovieURL]]; } With the above code, when the viewcontroller did load and run initAndPlayMovie, the movie starts to play from 15 seconds, but when it plays finished or "Done" is pushed, a new theMovie is created and starts to play from 0 second. Does anybody know what happened with the initialPlaybackTime property of MPMoviePlayerController? And whenever you reload the viewController where the above code is (presentModalViewController from a parent viewcontroller), the movie can start from any playback time. I am really confused what's the difference of the MPMoviePlayerController registration methods between the viewcontroller load and the recreating it after release. Need your help! Thank you!

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• jQuery call not working after Isotope filter is implemented

  - by user1374796

  I'm currently using the isotope plugin for a fluid layout, I can successfully filter the content, but after the filters have been called, the rest of my jQuery calls fail to work. Bear with me, I'm still new to jQuery but here's my code: jQuery(document).ready(function(){ jQuery(".pics-hidden").hide(); jQuery('.pics').click(function() { jQuery('#div'+jQuery(this).attr('rarget')).addClass('pics').removeClass('pics-hidden').delay(300).fadeIn(100); jQuery('#projectimages').isotope('reloadItems').isotope(); return false; }); var $container = $('#projectimages'); $container.isotope({ itemSelector: '.pics', animationEngine: 'css', masonry: { columnWidth: 4 } }); $('#menu a').click(function(){ var selector = $(this).attr('data-filter'); $container.isotope({ filter: selector }); return false; }); }); The filter works fine, as does the ('pics') click function, BUT after the filter has been called, the ('.pics') click function now fails to work. Is there a reason for this? Or a way to solve it? Tried all sorts, nothing seems to be working. Any suggestions are greatly appreciated!

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• http stream of baselineh264 doesnt seem to work in my MPMoviePlayerViewController

  - by theprojectabot

  Here is some code... I have a stream that works correctly if I view with safari on the iphone or quicktimex on the mac... but the stream doesnt view in my code for the ipad simulator - (IBAction)clickedOpenMovie:(id)sender { NSString *myString = [NSString stringWithFormat:@"http://myipofstreamingserver:1935/live/aStream/playlist.m3u8"]; //NSString *myString = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"720p5994-prores-hq_iPhone_320x240.m4v"]; NSURL *myURL = [NSURL fileURLWithPath:myString]; [self playMovieAtURL:myURL]; } -(void)playMovieAtURL:(NSURL*)theURL { //CGRect moviePlayerFrame = CGRectMake(20, 33, 100, 100); //UIView playerView = [[[UIView alloc] initWithFrame:moviePlayerFrame] autorelease]; MPMoviePlayerViewController* movieViewController = [[MPMoviePlayerViewController alloc] initWithContentURL:theURL]; //theMovie.scalingMode = MPMovieScalingModeNone; //theMovie. = MPMovieControlStyleFullscreen; //movieViewController.controlStyle = MPMovieControlModeDefault; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(myMovieFinishedCallback:) name:MPMoviePlayerPlaybackDidFinishNotification object:movieViewController]; //UIViewController *movieViewController = [[UIViewController alloc] initWithContentURL:theURL]; [self presentMoviePlayerViewControllerAnimated:movieViewController]; //[theMovie play]; }

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• How can I create a custom UIToolbar like component in a UITableViewController?

  - by Tony

  I have a UITableViewController. I want a "toolbar-ish" component at the bottom. I started by using a background image and a button. In interface builder, I added them to the bottom of the iPhone screen. The problem I ran into was that the background image and button scrolled with the table. I obviously need this fixed at the bottom. Not finding too much direction online, I decided to customize a UIToolbar to look how I want since the position is fixed by default. In my initWithNibName for my UITableViewController, I have: UIImage *shuffleButtonImage = [UIImage imageNamed:@"shuffle_button.png"]; NSArray* toolbarItems = [NSArray arrayWithObjects: [[UIBarButtonItem alloc] initWithImage:shuffleButtonImage style:UIBarButtonItemStylePlain target:self action:@selector(push:)], nil]; [toolbarItems makeObjectsPerformSelector:@selector(release)]; self.toolbarItems = toolbarItems; The problem I am running into now is that the "shuffleButtonImage" is not showing up properly. The shape of the button shows up fine but it is colored white and therefore does not look like the image. Does anyone know why a "white image" would be showing instead of the actual image? Also does it sound like a good idea to customize a UIToolbar or is there a simple way to ensure a fixed position "toolbar-ish" component. To reiterate - my "toolbar-ish" component only needs to be one button at the button of my UITableView. The single button has a gradient color background that I create with an image.

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• UIImageWriteToSavedPhotosAlbum with malloc_error

  - by lbalves

  I have an NIB file with a button. When I click this button, the setWallpaper: selector is called. Everything works as expected (the image is saved), excepte by the error thrown by malloc. malloc: *** error for object 0x184d000: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug I've set a breakpoint at malloc_error_break, but I don't understand anything from the debugger. I couldn't even find the object 0x184d000. Does anyone know why is this happening? I had also tried to retain the UIImage before sending it to UIImageWriteToSavedPhotosAlbum, but without success. My code is below: - (IBAction)setWallpaper:(id)sender { UIImage *image = [UIImage imageNamed:@"wallpaper_01.png"]; UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil); } - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo { UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Galo!!!",@"Saved image message: title") message:NSLocalizedString(@"Now, check your \"saved photos\" group at \"photos\" app in your iPhone and select the actions menu > set as wallpaper.",@"Saved image message") delegate:nil cancelButtonTitle:NSLocalizedString(@"OK",@"OK Button") otherButtonTitles:nil]; [alertView show]; [alertView release]; }

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• Having problems with uploading photos to TwitPic using OAuth in Objective C on the iPhone

  - by M. Bedi

  I have been working on an iPhone app that has a feature of uploading photos to TwitPic. I have it working with basic authentication. I am trying to get it working with OAuth. I am getting authentication errors. I have studied very carefully the TwitPic documentation. I am authorising the app by displaying a UI Web View and the it returns a PIN value. I enter the PIN value in the app and request the token. I am able to upload status updates to Twitter but not photos. My code is based on some example code from here: Example iPhone app using OAuth Here is my code: NSString *url = @"http://api.twitpic.com/2/upload.json"; NSString *oauth_header = [oAuth oAuthHeaderForMethod:@"POST" andUrl:url andParams:nil]; NSLog(@"OAuth header : %@\n\n", oauth_header); ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:url]]; [request addRequestHeader:@"User-Agent" value:@"ASIHTTPRequest"]; request.requestMethod = @"POST"; [request addRequestHeader:@"X-Auth-Service-Provider" value:@"https://api.twitter.com/1/account/verify_credentials.json"]; [request addRequestHeader:@"X-Verify-Credentials-Authorization" value:oauth_header]; NSData *imageRepresentation = UIImageJPEGRepresentation(imageToUpload, 0.8); [request setData:imageRepresentation forKey:@"media"]; [request setPostValue:@"Some Message" forKey:@"message"]; [request setPostValue:TWITPIC_API_KEY forKey:@"key"]; [request setDelegate:self]; [request setDidFinishSelector:@selector(requestDone:)]; [request setDidFailSelector:@selector(requestFailed:)]; [request start]; Here is the OAuth Header: OAuth realm="http://api.twitter.com/", oauth_timestamp="1275492425", oauth_nonce="b686f20a18ba6763ac52b689b2ac0c421a9e4013", oauth_signature_method="HMAC-SHA1", oauth_consumer_key="zNbW3Xi3MuS7i9cpz6fw", oauth_version="1.0", oauth_token="147275699-jmrjpwk3B6mO2FX2BCc9Ci9CRBbBKYW1bOni2MYs", oauth_signature="d17HImz6VgygZgbcp845CD2qNnI%3D"

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• iPhone: Memory leak when using NSOperationQueue...

  - by MacTouch

  Hi, I'm sitting here for at least half an hour to find a memory leak in my code. I just replaced an synchronous call to a (touch) method with an asynchronous one using NSOperationQueue. The Leak Inspector reports a memory leak after I did the change to the code. What's wrong with the version using NSOperationQueue? Version without a MemoryLeak -(NSData *)dataForKey:(NSString*)ressourceId_ { NSString *path = [self cachePathForKey:ressourceId_]; // returns an autoreleased NSString* NSString *cacheKey = [self cacheKeyForRessource:ressourceId_]; // returns an autoreleased NSString* NSData *data = [[self memoryCache] valueForKey:cacheKey]; if (!data) { data = [self loadData:path]; // returns an autoreleased NSData* if (data) { [[self memoryCache] setObject:data forKey:cacheKey]; } } [[self touch:path]; return data; } Version with a MemoryLeak (I do not see any) -(NSData *)dataForKey:(NSString*)ressourceId_ { NSString *path = [self cachePathForKey:ressourceId_]; // returns an autoreleased NSString* NSString *cacheKey = [self cacheKeyForRessource:ressourceId_]; // returns an autoreleased NSString* NSData *data = [[self memoryCache] valueForKey:cacheKey]; if (!data) { data = [self loadData:path]; // returns an autoreleased NSData* if (data) { [[self memoryCache] setObject:data forKey:cacheKey]; } } NSInvocationOperation *touchOp = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(touch:) object:path]; [[self operationQueue] addOperation:touchOp]; [touchOp release]; return data; } And of course, the touch method does nothing special too. Just change the date of the file. -(void)touch:(id)path_ { NSString *path = (NSString *)path_ NSFileManager *fm = [NSFileManager defaultManager]; if ([fm fileExistsAtPath:path]) { NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:[NSDate date], NSFileModificationDate, nil]; [fm setAttributes: attributes ofItemAtPath:path error:nil]; } }

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• Shake based application

  - by Sid

  hii frnz, i am developing an application which deletes rows from a table view when the user shakes the iPhone.i have created a navigation based project. now when the user shakes the iPhone i want that the title of navigation bar should change to "DELETE" and a delete button should appear on the navigation bar on the same view (but this operation should take place only when the user shakes the iPhone )otherwise when a user selects a particular row then it should move to next view.I have written the followin code but its not working.plz help me out..... (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { //NSLog(@"hiiiii"); if (isShaked == NO) { //logic to move to next view goes here. } else { self.title = @"Delete Rows"; delete=[[UIBarButtonItem alloc] initWithTitle:@"Delete rows" style: UIBarButtonItemStyleBordered target:self action:@selector(deleteItemsSelected)] ; self.navigationItem.rightBarButtonItem=self.delete; MyTableCell *targetCustomCell = (MyTableCell *)[tableView cellForRowAtIndexPath:indexPath]; [targetCustomCell checkAction]; [self.tempArray addObject: [myModal.listOfStates objectAtIndex:indexPath.row]]; //[delete addTarget:self action:@selector(deleteItemsSelected:) forControlEvents:UIControlEventTouchUpInside]; self.tempTableView = tableView; } } -(void)deleteItemsSelected { //for(int i = 0; i <= [tempArray count]; i++) //{ //} [myModal.listOfStates removeObjectsInArray:tempArray]; [tempTableView reloadData]; } checkAction method is a custom cell method which is used to put a tickmark on the row selected

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• why AVAudioplayer doesn't stop/pause when viewWillDisappear?

  - by Rahul Vyas

  I am using avaudioplayer in my app. on viewwilldisappear i want to pause/stop the sound and on viewwill appear i want to play sound again.how do i do this? i'm using this code on viewWillAppear:- if(self.TickPlayer) { [self.TickPlayer play]; } if(self.TickPlayer.volume<0) { self.TickPlayer.volume=1.0; } and this on viewWillDisAppear if(self.TickPlayer) { [self.TickPlayer stop]; } here is the method which plays the sound -(void)PlayTickTickSound:(NSString*)SoundFileName { //Get the filename of the sound file: NSString *path = [NSString stringWithFormat:@"%@%@",[[NSBundle mainBundle] resourcePath],[NSString stringWithFormat:@"/%@",SoundFileName]]; //Get a URL for the sound file NSURL *filePath = [NSURL fileURLWithPath:path isDirectory:NO]; NSError *error; if(self.TickPlayer==nil) { self.TickPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:filePath error:&error]; // handle errors here. self.TickPlayer.delegate=self; [self.TickPlayer setNumberOfLoops:-1]; // repeat forever [self.TickPlayer play]; } if(self.TickPlayer) { [self.TickPlayer play]; } } and i'm calling it in method which fires every second using a timer in viewDidLoad- self.timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateCountdown) userInfo:nil repeats:YES]; -(void) updateCountdown { [self PlayTickTickSound:@"tick.caf"]; } i'm also playing a beep sound using avaudioplayer at a specific condition when alert appears.that works fine but this is not working as expected

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• NSThread shared object issue

  - by Chris Beeson

  Hi, I'm getting an “EXC_BAD_ACCESS” but just can't work out why, any help would be massive - thank you in advance. The user takes a picture and I want to do some processing on it in another thread... - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { ... NSString *uid = [Asset stringWithUUID]; [_imageQueue setObject:img forKey:uid]; [NSThread detachNewThreadSelector:@selector(createAssetAsyncWithImage:) toTarget:self withObject:uid]; } Then the new thread -(void) createAssetAsyncWithImage:(NSString *)uid { NSAutoreleasePool * pool =[[NSAutoreleasePool alloc] init]; if ([_imageQueue objectForKey:uid]) { Asset *asset = [Asset createAssetWithImage:[_imageQueue objectForKey:uid]]; asset.uid = uid; [self performSelectorOnMainThread:@selector(asyncAssetCreated:) withObject:asset waitUntilDone:YES]; } [pool release]; } Which calls +(Asset *)createAssetWithImage:(UIImage *)img { .... UIImage *masterImg = [GraphicSupport createThumbnailFromImage:img pixels:img.size.height/2]; .... return newAsset; } And then this is where I keep getting the BAD_ACCESS +(UIImage *)createThumbnailFromImage:(UIImage *)inImage pixels:(float)pixels{ CGSize size = image.size; CGFloat ratio = 0; if (size.width > size.height) { ratio = pixels / size.width; } else { ratio = pixels / size.height; } CGRect rect = CGRectMake(0.0, 0.0, ratio * size.width, ratio * size.height); UIGraphicsBeginImageContext(rect.size); //NSAssert(image,@"image NULL"); [image drawInRect:rect]; return UIGraphicsGetImageFromCurrentImageContext(); } It's image that is giving me all the complaints... What am I doing wrong?? Many thanks in advance

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• Schedule multiple events with NSTimer?

  - by AWright4911

  I have a schedule cache stored in a pList. For the example below, I have a schedule time of April 13, 2010 2:00PM and Aril 13, 2010 2:05PM. How can I add both of these to a queue to fire on their own? item 0 -Hour --14 -Minute --00 -Month --04 -Day --13 -Year --2010 item 1 -Hour --14 -Minute --05 -Month --04 -Day --13 -Year --2010 this is how I am attempting to schedule multiple events to fire at specific date / time. -(void) buildScheduleCache { MPNotifyViewController *notifier = [MPNotifyViewController alloc] ; [notifier setStatusText:@"Rebuilding schedule cache, this will only take a moment."]; [notifier show]; NSCalendarDate *now = [NSCalendarDate calendarDate]; NSFileManager *manager = [[NSFileManager defaultManager] autorelease]; path = @"/var/mobile/Library/MobileProfiles/Custom Profiles"; theProfiles = [manager directoryContentsAtPath:path]; myPrimaryinfo = [[NSMutableArray arrayWithCapacity:6] retain]; keys = [NSArray arrayWithObjects:@"Profile",@"MPSYear",@"MPSMonth",@"MPSDay",@"MPSHour",@"MPSMinute",nil]; for (NSString *profile in theProfiles) { plistDict = [[[NSMutableDictionary alloc] initWithContentsOfFile:[NSString stringWithFormat:@"%@/%@",path,profile]] autorelease]; [myPrimaryinfo addObject:[NSDictionary dictionaryWithObjects: [NSArray arrayWithObjects: [NSString stringWithFormat:@"%@",profile], [NSString stringWithFormat:@"%@",[plistDict objectForKey:@"MPSYear"]], [NSString stringWithFormat:@"%@",[plistDict objectForKey:@"MPSMonth"]], [NSString stringWithFormat:@"%@",[plistDict objectForKey:@"MPSDay"]], [NSString stringWithFormat:@"%@",[plistDict objectForKey:@"MPSHour"]], [NSString stringWithFormat:@"%@",[plistDict objectForKey:@"MPSMinute"]], nil]forKeys:keys]]; profileSched = [NSCalendarDate dateWithYear:[plistDict objectForKey:@"MPSYear"] month:[plistDict objectForKey:@"MPSMonth"] day:[plistDict objectForKey:@"MPSDay"] hour:[plistDict objectForKey:@"MPSHour"] minute:[plistDict objectForKey:@"MPSMinute"] second:01 timeZone:[now timeZone]]; [self rescheduleTimer]; } NSString *testPath = @"/var/mobile/Library/MobileProfiles/Schedules.plist"; [myPrimaryinfo writeToFile:testPath atomically:YES]; } -(void) rescheduleTimer { timer = [[NSTimer alloc] initWithFireDate:profileSched interval:0.0f target:self selector:@selector(theFireEvent) userInfo:nil repeats:YES]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; [runLoop addTimer:timer forMode:NSDefaultRunLoopMode]; }

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