Videos matching: iPhone

How to inherit static variable in objective c from parent class to subclass or use static variable in other class?

More

How to inherit static variable in objective c from parent class to subclass or use static variable in other class?

Objective-C: how to delcare a static member that is visible to subclasses?

i checked above link but i couldn't understand.

I'm currently using a pin view in one of my app and am running into an issue where the user has to first unlock phone, then navigate to the app and ...More

I'm currently using a pin view in one of my app and am running into an issue where the user has to first unlock phone, then navigate to the app and then unlock the app with a pin code. I know it works, but I would like the security (let the user in/lock out of the app) to be resolved faster.

I know that android uses a swipe gesture across dots, which seems to work faster than iPhone's pin screen.

My question is: what (faster) alternatives to the in-app pin screen are there to secure an iPhone app?

I'm having an extremely odd issue with Superfish on iphone.

I'm using it with WordPress More

I'm having an extremely odd issue with Superfish on iphone.

I'm using it with WordPress on this site.

It displays in the header and works fine on desktop browsers, but on iphone when the menu is closed there is a brief flicker where the menu items show again for less than a second (without some of the formatting.)

Sometimes it doesn't seem to happen.

A weird thing is that in my code I have the anchor tag once:

<div id="primary-nav">

        <a class="menu-dropdown" href="#primary-nav"></a>

        <?php wp_nav_menu( array( 'theme_location' => 'primary', 'container' => 'div', 'fallback_cb' => false ) ); ?>

        <!-- END #primary-nav -->

</div>

But when inspecting the elements with chrome developer tools I see:

<div id="primary-nav"><a class="menu-dropdown" href="#primary-nav"></a>

        <a class="menu-dropdown" href="#primary-nav"></a>

        [~all the menu code is here~]
        <!-- END #primary-nav -->

</div>

I can't figure out why either of these things are happening, it seems extremely weird. Any ideas?

Is it possible to ask the OS via code if the Auto-Lock and or Password Lock is enabled on the device?

A secure app I am making needs to warn...More

Is it possible to ask the OS via code if the Auto-Lock and or Password Lock is enabled on the device?

A secure app I am making needs to warn the user if these are not set.

First and foremost I apologize if this question is not programmer per-se but I've been trying to get some details as to why I'm having this particul...More

First and foremost I apologize if this question is not programmer per-se but I've been trying to get some details as to why I'm having this particular problem.

When you view this page on your phone http://www.wilsontireandservice.com/mobile.aspx I would like it when you bookmark a site to your menu it shows up as an icon. On droid phones this was fairly easy to do by just adding this link in the markup:

Which is placed inside the skin.ascx file.

However, when trying to do this on an iPhone, I can't seem to get the thing to work. the Icon file is 57x57. I've tried changing the name (Icon.png, apple_touch_icon.png, apple-touch-icon.png), I tried moving the image changing the path to the root folder instead. I placed it inside an HTML module set to repeat on all pages in the header (under settings) with no luck.

We are currently running DNN 5 if it matters, what I'm wondering is there some kind of restriction on doing this within DNN or my version too out of date (we're moving to DNN 6 over the summer), or maybe this has nothing to do with DNN at all.

Thank you for any help you can provide.

When I start with my MainStoryboard.storyboard file in Xcode I begin by removing any support for portrait orientations. However, when I go to my Mai...More

When I start with my MainStoryboard.storyboard file in Xcode I begin by removing any support for portrait orientations. However, when I go to my MainStoryboard.storyboard file the Screen is still in the portrait position. My question is how can I change the screen in the .storyboard file to become horizontal? Thanks!

I open UIPopoverController popover with UITableViewController as it's content view controller.

Popover has the pro...More

I open UIPopoverController popover with UITableViewController as it's content view controller.

Popover has the proper size, and it's content view at first glance adjusts correct, but if I try to scroll inside popover, it scrolls, though it shouldn't. Seems that the content view becomes about 20 px higher after -(void)viewDidAppear (pic 1, 2). What do I do to check sizes:

- (void)viewDidAppear:(BOOL)animated
{
    NSLog(@"%@", self.view);
}

Output is

Popovers[3016:c07] <UITableView: 0x10b80600; frame = (0 0; 200 66); autoresize = W+H; gestureRecognizers = <NSArray: 0x1004cc20>; layer = <CALayer: 0x1004c4a0>; contentOffset: {0, 0}>

At this point the size is correct, and it's equals to the size of popover. After popover is opened it's inner size without margins is 66 px (measured with the help of Ruler app). So, it seems that it should fit exactly to the size of content view. But unexpected vertical scrolling appears somehow.

Than, if I add 20 px to the height of popover, [mOptionPopoverController setPopoverContentSize:(CGSize){200, 86}]; than it's content view also increases and fits as expected, without any scrollers. Only issue is that I don't need empty 20 px at the bottom of popover (pic. 3).

I made a small test project to reproduce my problem. Here is the important code:

@implementation ViewController

- (IBAction)buttonPressed:(id)sender
{
    TableViewController *popoverViewController = [[TableViewController alloc] initWithStyle:UITableViewStyleGrouped];
    UIPopoverController* mOptionPopoverController = [[UIPopoverController alloc] initWithContentViewController:popoverViewController];
    [mOptionPopoverController setPopoverContentSize:(CGSize){200, 66}]; 
    CGRect popoverRect = [self.view convertRect:[sender frame] fromView:[sender superview]];
    [mOptionPopoverController presentPopoverFromRect:popoverRect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}

@end

@implementation TableViewController

- (id)initWithStyle:(UITableViewStyle)style
{
    self = [super initWithStyle:style];
    if (self) {
        self.tableView.bounces = NO;
    }
    return self;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 1;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

    return cell;
}

- (void)viewDidAppear:(BOOL)animated
{
    NSLog(@"%@", self.view);
}

@end

pic.1

pic.2

pic.3

And here is what I would expect:

I am wondering if there is a way to accomplish a tab bar with only large icons, I have attached an image below for reference. I am not interested i...More

I am wondering if there is a way to accomplish a tab bar with only large icons, I have attached an image below for reference. I am not interested in creating my own tab bar controller, and managing the view controllers myself.

I have UITableView with NSFetchedResultsController attached to it. FRC's delegate methods work perfectly and everything is nice, but my cells have c...More

I have UITableView with NSFetchedResultsController attached to it. FRC's delegate methods work perfectly and everything is nice, but my cells have custom backgrounds that depend on the position of the cell: 1. on top of the UITableView (background with rounded corners on top) 2. in the middle (background with no rounded corners) 3. on the bottom (background with rounded corners on the bottom) 4. single cell (all corners are rounded). In my cell configuration method I calculate a position of the cell and I'm setting an appropriate background view to it. Everything works fine, but there is a problem in the implementation of FRC's delegate method:

- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject
       atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type
      newIndexPath:(NSIndexPath *)newIndexPath
{

    UITableView *tableView =  self.agenciesTableView;

    switch(type)
    {
        case NSFetchedResultsChangeInsert:
        {
            [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath]
                             withRowAnimation:UITableViewRowAnimationNone];
            break;
        }
        case NSFetchedResultsChangeDelete:
        {
            [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
                             withRowAnimation:UITableViewRowAnimationNone];
            break;
        }
        case NSFetchedResultsChangeUpdate:
        {
            [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];

            break;
        }
        case NSFetchedResultsChangeMove:
        {

            [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
                             withRowAnimation:UITableViewRowAnimationFade];
            [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath]
                             withRowAnimation:UITableViewRowAnimationFade];
            break;
        }
    };
}

As you can see it is completely common, but there is one issue: If the cell gets inserted to the top of UITableView, its configuration method (cellForRowAtIndexPath) gets called and it draws correctly (with rounded top corners) but the cell that is under it (that was previously on the top) remains with rounded top corners and I need to redraw it somehow.

-=EDITED=-

I changed FRC's delegate method to reflect the update logic:

- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject
       atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type
      newIndexPath:(NSIndexPath *)newIndexPath
{

    UITableView *tableView =  self.agenciesTableView;

    switch(type)
    {
        case NSFetchedResultsChangeInsert:
        {
            [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath]
                             withRowAnimation:UITableViewRowAnimationNone];

            //if we inserting a cell not to the middle of table view
            //we need to update the previous cell (if we are inserting to the end)
            // or the next cell (if we are inserting to the beggining)
            if ([self controller:controller positionForCellAtIndexPath:newIndexPath]!=UITableViewCellPositionMiddle)
            {
                NSIndexPath *prevIndexPath=[NSIndexPath indexPathForRow:(newIndexPath.row+1) inSection:newIndexPath.section];
                NSIndexPath *nextIndexPath=[NSIndexPath indexPathForRow:(newIndexPath.row-1) inSection:newIndexPath.section];
                if ([self controller:controller cellExistsAtIndexPath:prevIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:prevIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
                if ([self controller:controller cellExistsAtIndexPath:nextIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:nextIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
            };
            break;
        }
        case NSFetchedResultsChangeDelete:
        {
            [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
                             withRowAnimation:UITableViewRowAnimationNone];

            //if we deleting a cell not fromo the middle of table view
            //we need to update the previous cell (if we are deleting from the end)
            //or the next cell (if we are deleting from the beggining)
            if ([self controller:controller positionForCellAtIndexPath:indexPath]!=UITableViewCellPositionMiddle)
            {
                NSIndexPath *prevIndexPath=[NSIndexPath indexPathForRow:(indexPath.row+1) inSection:indexPath.section];
                NSIndexPath *nextIndexPath=[NSIndexPath indexPathForRow:(indexPath.row-1) inSection:indexPath.section];
                if ([self controller:controller cellExistsAtIndexPath:prevIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:prevIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
                if ([self controller:controller cellExistsAtIndexPath:nextIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:nextIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
            };
            break;
        }
        case NSFetchedResultsChangeUpdate:
        {
            [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];

            break;
        }
        case NSFetchedResultsChangeMove:
        {

            [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
                             withRowAnimation:UITableViewRowAnimationNone];
            if ([self controller:controller positionForCellAtIndexPath:indexPath]!=UITableViewCellPositionMiddle)
            {
                NSIndexPath *prevIndexPath=[NSIndexPath indexPathForRow:(indexPath.row+1) inSection:indexPath.section];
                NSIndexPath *nextIndexPath=[NSIndexPath indexPathForRow:(indexPath.row-1) inSection:indexPath.section];
                if ([self controller:controller cellExistsAtIndexPath:prevIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:prevIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
                if ([self controller:controller cellExistsAtIndexPath:nextIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:nextIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
            };


            [tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath]
                             withRowAnimation:UITableViewRowAnimationNone];
            if ([self controller:controller positionForCellAtIndexPath:newIndexPath]!=UITableViewCellPositionMiddle)
            {
                NSIndexPath *prevIndexPath=[NSIndexPath indexPathForRow:(newIndexPath.row+1) inSection:newIndexPath.section];
                NSIndexPath *nextIndexPath=[NSIndexPath indexPathForRow:(newIndexPath.row-1) inSection:newIndexPath.section];
                if ([self controller:controller cellExistsAtIndexPath:prevIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:prevIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
                if ([self controller:controller cellExistsAtIndexPath:nextIndexPath])
                {
                    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:nextIndexPath] withRowAnimation:UITableViewRowAnimationNone];
                };
            };
            break;
        }
    };
}

But in this case I'm getting an error:

2013-05-24 21:04:19.458 PharmaTouch[6994:fb03] *** Assertion failure in -[_UITableViewUpdateSupport _computeRowUpdates], /SourceCache/UIKit_Sim/UIKit-  1912.3/UITableViewSupport.m:386
2013-05-24 21:04:19.483 PharmaTouch[6994:fb03] CoreData: error: Serious application error.  An exception was caught from the delegate of NSFetchedResultsController during a call to -controllerDidChangeContent:.  Invalid table view update.  The application has requested an update to the table view that is inconsistent with the state provided by the data source. with userInfo (null)

-=EDITED2=- here's my controller:cellExistsAtIndexPath: method implementation. It is used for safety checks to avoid reloadRowsAtIndexPaths calls with indexPath arguments that is out of bounds.

-(BOOL)controller:(NSFetchedResultsController *)controller cellExistsAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.row<0)
    {
        return NO;
    };

    NSInteger numberOfRows = 0;
    NSArray *sections = controller.sections;
    if(sections.count > 0)
    {
        id <NSFetchedResultsSectionInfo> sectionInfo = [sections objectAtIndex:indexPath.section];
        numberOfRows = [sectionInfo numberOfObjects];
    };
    if (indexPath.row>(numberOfRows-1))
    {
        return NO;
    }
    else
    {
        return YES;
    };
}

Is there a way to turn an iPod/iPhone into a bluetooth proxy so that I can connect another phone to it via bluetooth and stream music through it? e...More

Is there a way to turn an iPod/iPhone into a bluetooth proxy so that I can connect another phone to it via bluetooth and stream music through it? e.g. I have an iPod touch hooked up via USB to an iPod specific speaker system all the time and I simply connect my android phone via bluetooth to the iPod and stream music from my phone, through the iPod, to the speakers.

I want to start developing something like this, but I just found out that apple charges $100/year to do development on a real device instead of the simulator (which I can't use to test bluetooth functionality).

So far, all of the example programs I've seen have been about connecting the iPod to something else. I would like the connection to be initiated from the other device.

So, before I lose $100 trying this out, I would like to know if you all think this is feasible with the current iOS bluetooth and audio stream APIs as this would be my first foray into iOS' world of objective C.

thanks

I have run the UIKit artwork extractor tool (https://github.com/0xced/UIKi...More

I have run the UIKit artwork extractor tool (https://github.com/0xced/UIKit-Artwork-Extractor) on the simulators and retina iPhone, and there are some pieces of artwork that are only available on the actual device (eg. Mobile Music Player). I only have a retina device, but also need the artwork for non-retina devices as my app still supports older devices.

If someone has a non-retina iPhone, I'd be much obliged if you could run UIKit artwork extractor on it and make a ZIP archive with the contents?

i am using cllocation manager for getting user current location in my application delegate class.Some thing like this:

-(void) getUs...More

When I Request something from Service , then , press then Home button.

Then, tap AppIcon enter the application.

Then, some fantasy t...More

When I Request something from Service , then , press then Home button.

Then, tap AppIcon enter the application.

Then, some fantasy things happen.

The NSURLConnectDelegate

- (void)connectionDidFinishLoading:(NSURLConnection *)connection 

is called before the applicationWillEnterForeground. Why this happen???

I need to fill a html webview with variables that I have stored in objective C.

I believe that I need to use:

[self.webView ...More

I'm trying to create a SQLite Database but run into a problem that seems to derive from the table CONTACTS never being created (I get the error mess...More

I'm trying to create a SQLite Database but run into a problem that seems to derive from the table CONTACTS never being created (I get the error message 'Error while inserting 'no such table: CONTACTS' ').

From the code below, can anyone see what is wrong and how it can be corrected? This example is taken straight from this guide, which is why I'm surprised it doesn't work: http://www.techotopia.com/index.php/An_Example_SQLite_based_iOS_6_iPhone_Application

- (void)viewDidLoad 
{  
    [super viewDidLoad];
    NSString *docsDir;
    NSArray *dirPaths;

    // Get the documents directory

    dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    docsDir = dirPaths[0];

    //Buid the path for database file
    _databasePath = [[NSString alloc]
                     initWithString:[docsDir stringByAppendingPathComponent:@"contacts.db"]];

    NSFileManager *filemgr = [NSFileManager defaultManager];

    if([filemgr fileExistsAtPath: _databasePath ] == NO)
    {
        const char *db_path = [_databasePath UTF8String];

        if(sqlite3_open(db_path, &_contactDB) == SQLITE_OK)
        {
            char *errMsg;

            const char *sql_stmt =
            "CREATE TABLE IF NOT EXISTS CONTACTS (ID INTEGER PRIMARY KEY AUTOINCREMENT, NAME TEXT)";

            if (sqlite3_exec(_contactDB, sql_stmt, NULL, NULL, &errMsg) != SQLITE_OK)
            {
                _text.text = @"Failed to create table";
            }
            sqlite3_close(_contactDB);
        } else { 
            _text.text = @"Failed to open/create database";
        }
    }

}

- (IBAction)saveName:(id)sender {


NSString *currentName = self.text.text;
NSString *nameSaved = [[NSString alloc] initWithFormat:currentName];


    sqlite3_stmt    *statement;
    const char *dbpath = [_databasePath UTF8String];

    if (sqlite3_open(dbpath, &_contactDB) == SQLITE_OK)
    {
        NSLog(@"pass");
        NSString *insertSQL = [NSString stringWithFormat:
                               @"INSERT INTO CONTACTS (name) VALUES (\"%@\")",
                               nameSaved];

        const char *insert_stmt = [insertSQL UTF8String];
        sqlite3_prepare_v2(_contactDB, insert_stmt,
                           -1, &statement, NULL);
        if (sqlite3_step(statement) == SQLITE_DONE)
        {
        NSLog(@"pass");
        } else {
        NSLog( @"Error while inserting '%s'", sqlite3_errmsg(_contactDB));
        }
        sqlite3_finalize(statement);
        sqlite3_close(_contactDB);

    }  
}

Which is the best model to provide iPhone apps in multi-languages?

1. Add a button inside the app that allow the user to translate the...More

Which is the best model to provide iPhone apps in multi-languages?

1. Add a button inside the app that allow the user to translate the app (so, the app lang will be independent from the iPhone lang).

2. Allow the app to read the system lang (and the app cannot change it). so to change the lang for the app, one should go to change the lang of the system.

EDIT

1. In all cases, my app will detect user's lang and use it on first install, I am asking about subsequent uses.

2. I don't ask about how to do, I just need to know what is should fit better.

Thanks.

In my application I have to send values of my NSManagedObject to server & after getting a success result from server I must update ...More

In my application I have to send values of my NSManagedObject to server & after getting a success result from server I must update a filed in my NSManagedObject.

On the server side the id field is an integer type. Is there any possible id in Core Data which i can send to sever and update the value again in my iPhone?

Is NSManagedObjectID suitable for this ?

I'm currently trying to integrate Millennial Media with Admob Mediation so I can display its interstitial ads on my iPhone app. Everything is workin...More

I'm currently trying to integrate Millennial Media with Admob Mediation so I can display its interstitial ads on my iPhone app. Everything is working OK and I'm able to display the test ad (my app hasn't been approved yet), but when I close an ad, interstitialDidDismissScreen is not being triggered. I know that I've implemented the delegate correctly and it works with other ad networks so I know the problem is not on my end. Does anyone know how to fix this?

Im using OpenCV to help me detect a coin in an image taken from an iPhone camera. Im using HoughCircles method to help me find them but the results ...More

Im using OpenCV to help me detect a coin in an image taken from an iPhone camera. Im using HoughCircles method to help me find them but the results are less than hopeful.

cv::Mat greyMat;
    cv::Mat filteredMat;
    cv::vector<cv::Vec3f> circles;
    cv::cvtColor(mainImageCV, greyMat, CV_BGR2GRAY);

    cv::threshold(greyMat, filteredMat, 100, 255, CV_THRESH_BINARY);

    for ( int i = 1; i < 31; i = i + 2 )
    {
//        cv::blur( filteredMat, greyMat, cv::Size( i, i ), cv::Point(-1,-1) );
        cv::GaussianBlur(filteredMat, greyMat, cv::Size(i,i), 0);
//        cv::medianBlur(filteredMat, greyMat, i);
//        cv::bilateralFilter(filteredMat, greyMat, i, i*2, i/2);
    }

    cv::HoughCircles(greyMat, circles, CV_HOUGH_GRADIENT, 1, 50);

    NSLog(@"Circles: %ld", circles.size());

    for(size_t i = 0; i < circles.size(); i++)
    {
        cv::Point center((cvRound(circles[i][0]), cvRound(circles[i][1])));
        int radius = cvRound(circles[i][2]);
        cv::circle(greyMat, center, 3, cv::Scalar(0,255,0));
        cv::circle(greyMat, center, radius, cv::Scalar(0,0,255));
    }

    [self removeOverViews];
    [self.imageView setImage: [self UIImageFromCVMat:greyMat]];

This current segment of code returns that i have 15 circles and the are all position along the right side of the image which has me confused.

Im new to OpenCV and there are barely any examples for iOS which has left me desperate.

Any help would be greatly appreciated, thanks in advance!

I am trying to make one long sound file by concatenating several smaller sound files - all are in the m4a format, and the result should also be in t...More

I am trying to make one long sound file by concatenating several smaller sound files - all are in the m4a format, and the result should also be in the m4a format.

Here is the code (the audFiles array holds the names of the sound files to join). Note I only print the file sizes for peace of mind...

CMTime nextClipStartTime = kCMTimeZero;
AVMutableComposition *combinedSounds = [AVMutableComposition composition];
NSString *tempDir = NSTemporaryDirectory();
NSArray *audFiles;

for (int i = 0; i < [audFiles count]; i++)
{
    NSString *addSound = [tempDir stringByAppendingString:audFiles[i]];
    if ([[NSFileManager defaultManager] fileExistsAtPath:addSound] == YES)
    {
        NSDictionary *fileAttributes = [[NSFileManager defaultManager] attributesOfItemAtPath:addSound error:nil];
        if (fileAttributes != nil)
        {
            NSString *fileSize = [fileAttributes objectForKey:NSFileSize];
            NSLog(@"file %@ %@", addSound, fileSize);
            NSURL *assetURL = [[NSURL alloc] initFileURLWithPath:addSound];

            AVURLAsset *asset = [[AVURLAsset alloc] initWithURL:assetURL options:nil];
            if (asset != nil)
            {
                CMTimeRange timeRange = CMTimeRangeMake(kCMTimeZero, asset.duration);
                NSLog(@"asset %d length %lld", i, asset.duration.value);
                if (asset.duration.value > 0)
                {
                    AVAssetTrack *audTrack = [asset tracksWithMediaType:AVMediaTypeAudio][0];
                    AVMutableCompositionTrack *audioTrack = [combinedSounds addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
                    if ([audioTrack insertTimeRange:timeRange ofTrack:audTrack atTime:nextClipStartTime error:nil] == NO)
                    {
                        NSLog(@"insertTimeRange %d FAILED", i);
                    }
                    nextClipStartTime = CMTimeAdd(nextClipStartTime, asset.duration);
                    nextClipStartTime = CMTimeAdd(nextClipStartTime, CMTimeMake(0.1, 1));
                    NSLog(@"nextClipStartTime %lld", nextClipStartTime.value);
                }
            }
        }
    }
}

NSString *finalSound = [tempDir stringByAppendingString:@"result.m4a"];
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:combinedSounds presetName:AVAssetExportPresetPassthrough];

 NSString *exported = [tempDir stringByAppendingString:finalSound];
[[NSFileManager defaultManager] removeItemAtPath:exported error:nil];
NSURL *exportedURL = [[NSURL alloc] initFileURLWithPath:exported];
exportSession.outputURL = exportedURL;
exportSession.shouldOptimizeForNetworkUse = YES;
exportSession.outputFileType = AVFileTypeAppleM4A;

[exportSession exportAsynchronouslyWithCompletionHandler:^{
    switch (exportSession.status)
    {
        case AVAssetExportSessionStatusFailed:
        {
            NSLog(@"exportSession FAIL");
            break;
        }
        case AVAssetExportSessionStatusCompleted:
        {
            NSLog(@"exportSession SUCCESS");
        }
    }
}];

"exportSession SUCCESS" is reported, and the exported file exists and can be played, but it only contains the first of the constituent files.

Any ideas what I am doing wrong ?

Thanks.

yesterday I installed Xcode 4.4.

I'm working on a project which needs to run on ios 4.1 upwards, supporting iOS device with camera. Until I ...More

yesterday I installed Xcode 4.4.

I'm working on a project which needs to run on ios 4.1 upwards, supporting iOS device with camera. Until I installed Xcode 4.4 everything went well, and I can test app on iphone 3gs and 4s. After I installed Xcode 4.4 I was unable to test app on iphone 3gs, and everytime I try to do it, xcode shows me that message: - Could not lauch "appname". timed out for app to lauch -

Does someone have any idea how to get rid of that error?

I am trying to build an IPA file for my app in view of some ad-hoc enterprise distribution. I have been looking at how to do this with Xcode 4.3.2, ...More

I am trying to build an IPA file for my app in view of some ad-hoc enterprise distribution. I have been looking at how to do this with Xcode 4.3.2, the version I am using at present, and I reached the point where in the organiser I should select the 'Save for Enterprise or ad-hoc deployment' option. The problem is that this option does not actually appear in the first place. In fact, I only have the 'Save Built Products' and 'export as Xcode archive' options.

I would imagine the issue lies in some configuration settings for my app, but have been unable to find any help over the web. Hence my question here :-) Would appreciate some help in understanding what is wrong with my code.

Thanks in advance to anyone helping here.

Cheers.

I've a plain UITableView (not grouped) that I want to add a dropshadow to left and to the right.

More

I've a plain UITableView (not grouped) that I want to add a dropshadow to left and to the right.

How can I achieve this? I've tried:

[self.tableView.layer setShadowColor:[[UIColor whiteColor] CGColor]];
[self.tableView.layer setShadowOffset:CGSizeMake(0, 0)];
[self.tableView.layer setShadowRadius:5.0];
[self.tableView.layer setShadowOpacity:1];

but it doesn't work.

I'm rendering a UIWebView's layer into a graphics context and then using the UIGraphicsBeginPDFPageWithInfo() family of functions to include it in a...More

I'm rendering a UIWebView's layer into a graphics context and then using the UIGraphicsBeginPDFPageWithInfo() family of functions to include it in a PDF.

My problem is that the output includes an extra set of gray lines that aren't part of my data set. I'm hoping someone can shed some light on where they're coming from.

An example of the output is included below. The HTML document that is being rendered contains nothing but the text 'THIS IS A TEST' - the boxes you see are coming from the rendering process somewhere. When rendered on the screen, it's just black text on a white screen - no lines/boxes.

Anyone have any ideas what's going on? Thanks!

Here's the code I'm using to render this web view as a PDF:

NSMutableData *pdfData = [NSMutableData data];

UIGraphicsBeginPDFContextToData(pdfData, CGRectZero, nil);
CGRect viewBounds = webView.bounds;

UIGraphicsBeginPDFPageWithInfo(viewBounds, nil);

CGContextRef pdfContext = UIGraphicsGetCurrentContext();
[webView.layer renderInContext:pdfContext];

UIGraphicsEndPDFContext();

Also, here's a screenshot of what I'm seeing for output:

I started off the project without Core Data and now I would like to add that functionality to my apps. How do I do this?

What additional th...More

I started off the project without Core Data and now I would like to add that functionality to my apps. How do I do this?

What additional things does XCode sets up when you actually tick the Use Core Data when you create a new project?

I have a UIWebView, filled this way :

[myWebView loadHTMLString:@"<iframe src=\"http://www.youtube.com/embed/grTCDFbhKMU\" frameb...More

I set an images for button's states Normal,Highlighted and Selected, but when the button in selected state and I press/highlight it I didn't see my ...More

I set an images for button's states Normal,Highlighted and Selected, but when the button in selected state and I press/highlight it I didn't see my highlighted image but just grayed picture. Is it possible to set an image for highlighted state when the button selected?

my code:

[button setImage:[UIImage imageNamed:@"normal.png"] forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:@"pressed.png"] forState:UIControlStateHighlighted];
[button setImage:[UIImage imageNamed:@"checked.png"] forState:UIControlStateSelected];

when I do:

[button setSelected:YES];

and press the button, the "pressed.png" image doesn't select.

I've literally tried everything I could but none of them work for a custom UIView... I just wanted a blank white view with rounded corn...More

I've literally tried everything I could but none of them work for a custom UIView... I just wanted a blank white view with rounded corners and a light drop shadow (with no lighting effect). I can do each of those one by one but the usual clipToBounds/maskToBounds conflicts occur.

What pixels per inch settings do iOS 4 graphics need to be to support the high resolution display? Should I just use the standard 72, or should I sp...More

What pixels per inch settings do iOS 4 graphics need to be to support the high resolution display? Should I just use the standard 72, or should I specifically make images that are 320x480@163ppi and 640x960@326ppi? Or, should I just make images those dimensions and not worry about the resolution (i.e. leave it at the default 72)?

I'm not concerned about the iPad, only iPhone 3/GS, iPhone 4 and iPod Touch users.

Note I realize this isn't about code, per se, but it is related to programming in so much as this is necessary for me to finish my iOS application ;)

On the subject of associating your iPhone app with file types.

In More

On the subject of associating your iPhone app with file types.

In this informative question I learned that apps could be associated with custom URL protocols.

That was almost one year ago and since then Apple introduced 'Document Support' which goes a step further and allows apps to associate with file types. There is a lot of talk in the documentation about how to set up your app to launch other appropriate apps when it encounters an unknown file type. This means the association doesn't work out of the box for any app, like the URL protocol registering did.

This leads me to the question: have system apps like Safari or Mail implemented this system for choosing associated applications, or will they do nothing, as before?