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  • iOS Application Background Downloading

    - by Hankweb
    Hey! I need to know how I can have my iOS Application start a download in the background of the application (like, have the download run in the AppDelegate file) so changing ViewControllers will not interrupt or cancel the download. I also need to be able to get the progress of the download (0.00000 - 1.00000), to set a UIProgressView object to, which also means I need a - (void)progressDidChangeTo:(int)progress function.

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  • xPath Groupings how?

    - by David
    OK So, I'm learning/using xpath for a basic application thats effectively ripping data off another website. I need to gain the knowledge of each persons Countryy/Suburb/area. In some instances you can get Australia/Victoria/melborne for instance. Others may just be Australia/Melbourne. Or even just Melbourne OR just AUSTRALIA. who knows. So I'm current able to view the below code and rip all of the information with the string xpath search:@" //table/tr/td/tabke/tr/td/font/a, this returns every entry, but what I really want is to group each lot separately. I hope someone out there on planet earth knows what I just tried to explain... and can help... Good day! <font face="arial" size="2"> <strong>Location:</strong> <a href="http://maps.google.com/maps?q=Australia" target="mapblast" style="text-decoration:none">Australia</a>, <a href='http://maps.google.com/maps?q=Australia%20Victoria'target="mapblast" style='text-decoration:none'>Victoria</a>, <a href='http://maps.google.com/maps?q=Australia%20Melbourne%20Victoria'target="mapblast" style='text-decoration:none'>Melbourne</a> </font> </td> </tr>

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  • Generic Any/Attach/Add function for Entity Framework

    - by Matt Thrower
    Looking through my EF classes, they're littered with code that looks like this: if (_myContext.[EntityType].Any(d => d.RowId == dc.RowId)) { _myContext.[EntityType].Attach(dc); _myContext.Entry(dc).State = EntityState.Modified; } else { _myContext.[EntityType].Add(dc); } It's the same thing over and over, and is clearly itching to be handled by a generic function. However, I'm not sure how you'd go about handling the need for it to deal with a variety of unexpected entity types. A good example to get me started would be most appreciated.

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  • Calculate and display distance between userlocation and known point in Table View

    - by Claudio
    Hi, I have a table view with a list of hotel, and i want put in cell.detailTextLabel.text the distance beetween userlocation and hotel. How can obtain the coordinates of userlocation? I see on web that i need to use CLLocationManager but i don't understand how and where implement in my table view. Then,to get the distance,i do a "getDistancefrom" between userLocation and the coordinates of the hotel ? Thanks

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  • Grouping data in an NSMutable array

    - by padatronic
    Hi guys, I have an array i load with lots of data from an xml file. I am displaying this on a tableview and then when you click on say an author it goes through to display all their books. At the minute my NSMutableArray has an entry for every each book with title, author and so on. So in the table of authors it display the authors name as many times as they have books. I want to group the array data so the table only displays each author once but the author contains an array of his books. Seems simple but I can't find a group method for arrays. thanks peeps

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  • Drag Rotate UIImageView by touch

    - by rockstardev
    I have an UIImageView that is a subview of an UIView. I'm trying to create a drag rotate effect with the UIImageView similar to spinning a bottle but I'm having trouble calculating the radians to rotate the image by. My code below seems like it should work because I've seen a similar calculation in Flash examples. Can anyone shed some light on what I'm doing wrong? Thanks. This is the code contained in my image view subclass: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; lastLocation = [touch locationInView:[self superview]]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint location = [touch locationInView:[self superview]]; CGFloat xDisplacement = location.x - lastLocation.x; CGFloat yDisplacement = location.y - lastLocation.y; CGFloat rad = atan2f(yDisplacement,xDisplacement); self.transform = CGAffineTransformMakeRotation(rad); }

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  • NSMutableArray EXC_BAD_EXCESS SIGBUS

    - by sujyanarayan
    Hi, I've the following code which causes crashes after sometime as i've set the below code in a timer:- CGImageRef cgImage = UIGetScreenImage(); [array addObject:(id)cgImage]; CGImageRelease(cgImage); Where initiallly i've declared "array" as: array = [[NSMutableArray alloc] init]; The timer goes well till 10 seconds as timer is of 1/10 seconds after 10 seconds it crashes. I think the application crashes because of EXC_BAD_EXCESS but dont know how to solve. Can Anybody help in solving the problem? Thanks in Adv.

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  • Provisioning problem with certificate and APNs

    - by Florent
    Hi all ! I hava a big problem, here is the deal : I've made an app which has an id, on an another machine i've submit the app to the app store, now i have another mac, and i have made the AppIds using my old mac (so i used an old cer to make the push certificates), next made my apns cert for my server and i have : unable to connect to ssl://gateway.... I do not know what to do because i cannot create another appId using the same id and can't remove an app Id. Thanks to all

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  • SingleTap on UIScrollView

    - by ludo
    Hi, I see many post dealing with the UIScrollView like in the PhotoApp, but I don't really understand them, thats why I want to reopen a post about it and have a simple solution. What I want is to create (without IB) a simple UIViewController who will contain a UIScrollView (inside my scrollView there will be image and the scrollView will be set to pagingEnable to YES of course). I want to be able with a simple touch of the screen to display the navigationController.navigationBar inside my UIViewController and with another touch not displaying it of course. Can anyone show me how to implement that? thanks,

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  • Xcode 4: deleting items in Build Settings

    - by occulus
    In XCode 4.0 there's a newly designed Build Settings page. My problem is that I can't see how to remove a setting once I've specified it. Example: I've changed "Versioning System" to "Apple Generic" at the target level. Afterwards I realised I should set it at the project level, and so I want to delete the target level setting. However, there's no way I can see to remove the setting -- you click on it and there's two options, neither of which is the default "not specified" empty setting. Hitting the delete key on the keyboard nothing. The same goes for fields that accept text -- if I try to delete a setting by just deleting all the text set, it still shows that field in green, but with no text in it, and regards it as the presence of a setting.

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  • Animation in quartz 2D

    - by coure06
    I want to create an app which after each 1 second will show 4-5 words on screen but the last word will zoom out/in. I can easily create static words and for the last animating word i need to draw the static again n again. How can i create 2 separate layers so the static text is on one layer ( i will fill it after each second) and the last word (animated one) will be on other layer. How to create 2 separate layers? Attached on same screen but handling their drawRect method separately?

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  • how to initialized array value's into another new array.

    - by kiran kumar
    I have array distanceListArray.. 5 km, 10 km, 15km, 20 km, 25 km. distanceListArray is of appDelegate.class distanceArray count is 5. Now i do have another array. which have list of events data ... eventListArray is of DistanceClass call eventListArray. for 5 km its displays 10 events, for 10 km its display 20 events. Now i need to load data for each section from distanceListArray of eventListArray Into another new array. All Arrays's are NSMutableArray. I hope this makes ambiguity. please help try to help me out.

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  • MPMoviePlayerController not setting the bounds for background image

    - by VXtreme
    I am using MPMoviePlayerController for playing the media . I want to set the image at the background of the player.The image is set accordingly but when i set the bounds for the image then the image is not set according to bounds . I have tried following code: UIImageView *imageView=[[UIImageView alloc]initWithImage:[operationControl getCoverImage:stringId]]; imageView.bounds=CGRectMake(0, 100, 200, 200); [moviePlayer.backgroundView addSubview:imageView]; [moviePlayer.backgroundView setBackgroundColor:[UIColor purpleColor]]; moviePlayer.controlStyle = MPMovieControlStyleDefault; moviePlayer.shouldAutoplay = YES; [moviePlayer setScalingMode:MPMovieScalingModeAspectFit]; [self.view addSubview:moviePlayer.view]; [moviePlayer setFullscreen:YES animated:YES];

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  • UIImageWriteToSavedPhotosAlbum Problem

    - by Momeks
    Hi , i try to save a photo from camera after take a photo with a button . here is my codes: -(IBAction)takePic { ipc = [[UIImagePickerController alloc]init]; ipc.delegate = self; ipc.sourceType = UIImagePickerControllerSourceTypeCamera; [self presentModalViewController:ipc animated:YES]; } - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { img.image = [info objectForKey:UIImagePickerControllerOriginalImage]; [[picker parentViewController]dismissModalViewControllerAnimated:YES]; [picker release]; } but i dont know why doesnt save anything !

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  • How do you implement an MPVolumeView?

    - by Emil
    Hey! I want the user to be able to change the system volume with a slider, and I realized the only way to do this is with an MPVolumeView. But I can't find any example code for it, and every method I try to implement won't show up. So what is the easiest and correct, working way of implementing a MPVolumeView?

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  • Create a bubble effect on a grid OpenGL-ES

    - by Charles Michael
    Hi there. I have created a grid with 40 x 40 vertex3D (small but useful) I can pick a single vertex out of that grid by simply calling a function with the position array[X][Y], And therefore neighbors too. How can I raise up neighbor vertex Z value so they kinda look like a bubble or sphere kind of thingy? My first tough was to use: Neighbor_vertex.Z = sin(PI/4 * 1 - ( 1/ distance_between_Neighbor_and_Pivot) ) * desired_Max_Height But all I got is something like a wave.... and I would like to have a bubble or Sphere like shape. THX dudes and dudettes

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  • Pinterest Gridview implementation on iOS

    - by Amal
    I want to implement a grid view like the one in Pinterest I thought about implementing as 3 table views. But I was not able to scroll them together well. When I implemented the scrollViewDidScroll and set the contentOffset for the table views other the scrollView , the scrolling became slow and unusable. Another implementation I did was of was having a set of images to load and calling the viewDraw function in scrollViewDidScroll. THe ViewDraw function just draws the necessary images and removes the rest of the images from the memory which were already drawn but wont be visible . this too makes the ScrollView Scrolling slow. And another issue with it is that there are white(background color) patches before the images are drawn. What should be the best way to implement this grid view ?

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  • iphones inbuilt mail composer

    - by hardik
    Hello everyone i am new to i phone development i have a requirement that my email us field is coming from webservice on tapping it the iphones email composer gets open if i want to add a button on iphones in built mail composer i could i do that please guide me to do that a sample code would be a boost

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  • Plist array , cannot change dictonaries inside

    - by Andy Jacobs
    i have a plist that's at its root an array with dictonaries inside it. i load a plist from my recourses as an NSMutableArray. [NSMutableArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Filters" ofType:@"plist"]] i store it into nsuserdefault because it has to be persistent between startups. [[NSUserDefaults standardUserDefaults] setObject:array forKey:@"filters"]; but i can't change the dictonaries in the array because they are not mutable. how can i make them mutable?

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  • division with wrong result

    - by PeterK
    Hi, I am trying to divide integers but get 0 as result. I just do not understand what i am doing wrong. I am using only int's in this example but get the same result testing with float or double. The code i use is: int wrongAnswers = askedQuestions - playerResult; int percentCorrect = (playerResult / askedQuestions) * 100; int percentWrong = (wrongAnswers / askedQuestions) * 100; NSLog(@"askedQuestions: %i", askedQuestions); NSLog(@"playerResult: %i", playerResult); NSLog(@"wrongAnswers: %i", wrongAnswers); NSLog(@"percentCorrect: %i", percentCorrect); NSLog(@"percentWrong: %i", percentWrong); NSLog(@"calc: %i", (wrongAnswers + playerResult)); NSLog(@"wrong answers %: %i %%", ((wrongAnswers / askedQuestions) * 100)); The result i get is: 2011-01-09 16:45:53.411 XX[8296:207] askedQuestions: 5 2011-01-09 16:45:53.412 XX[8296:207] playerResult: 2 2011-01-09 16:45:53.412 XX[8296:207] wrongAnswers: 3 2011-01-09 16:45:53.413 XX[8296:207] percentCorrect: 0 % 2011-01-09 16:45:53.414 XX[8296:207] percentWrong: 0 % 2011-01-09 16:45:53.414 XX[8296:207] calc: 5 2011-01-09 16:45:53.415 XX[8296:207] wrong answers : 0 % I would very much appreciate help :-)

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