This is very unlikely but still, one possible reason:

Make sure correct &#39;Executable&#39; is selected in &#39;Profile&#39; option for your Scheme. If the selected executable is &#39;None&#39;, profile option will be disabled.

In case you don&#39;t know how to check scheme settings, you can check these setting by selecting &#39;Edit Scheme&#39; either from Scheme menu (App name and device/simulator drop downs near the Run and Stop button ) or from &#39;Product&#39; menu of xcode

I just want to have my anchor in the middle of the screen horizontally, how might I do this?

    &lt;a href=&quot;http://www.example.com&quot;&gt;example&lt;/a&gt;

How do I center an anchor element in CSS?

I&#39;ve created a simple javascript for my `iOS` app that I&#39;d like to run simultaneously on multiple `iOSDevices` connected via USB to one host Mac machine. Launching instruments connected to an `iPhone` from the command line works fine but if I attempt to launch a second instruments connected to an `iPad`, the first instruments session hangs.  


----------


Upon terminating the first instruments session, I get one of more of the following lines printed:

&gt; Stopped: Script stopped due to device being disconnected

After extensive research on the subject, with no results on the phrase, I&#39;ve been trying to read into what is meant by Apple&#39;s Instruments Guide:

&gt; When you choose All Processes, Attach to Process, or Choose Target from the Target menu, Instruments sets the default target for all instruments to the program you choose. There are occasions, however, when you might want to set a different target for each instrument. You might want to sample two different programs at the same time, for example, using the Sampler instrument. If you have some instruments that are capable of tracing all processes, you might want them to do just that while single-process instruments sample just one process.

I&#39;m wondering if the `Automation.tracetemplate` is a single-process only instrument and that if another process is started with the same Automation trace then the first is usurped.

Any advice would be grateful as this is a major block for running our time intensive automation tests over multiple `iOSDevices`.


----------


**Update 27 Mar 2012**

The following is from an email received after submitting a bug to Apple on the matter (developer.apple.com/bugreporter):

&gt;I heard back from a UI Automation engineer. UI Automation is a single process Instrument. As such, you cannot use it simultaneously on multiple devices.


Instruments automation trace only allows one target connection?

How do I profile my app in xcode - the menu item is disabled?

Product &gt; Profile is disabled

How do I profile my app - the menu item is disabled?

<p>How do I profile my app in xcode - the menu item is disabled?</p>
<p>Product > Profile is disabled</p>


I have a view controller hierarchy and the top-most controller is displayed as a modal and would like to know how to display the navigation bar when using 

    &#39;UIViewController:presentViewController:viewControllerToPresent:animated:completion&#39;

The docs for &#39;presentViewController:animated:completion:&#39; note: 

&gt; &#39;On iPhone and iPod touch, the presented view is always full screen.
&gt; On iPad, the presentation depends on the value in the
&gt; modalPresentationStyle property.&#39;

For &#39;modalPresentationStyle&#39;, the docs say:
&gt; The presentation style determines how a modally presented view controller is displayed onscreen. On iPhone and iPod touch, modal view controllers are always presented full-screen, but on iPad there are several different presentation options. 

Is there way to ensure that the navigation bar is visible below the status bar once the view control displays itself? Should I interpret the doc as, you don&#39;t get any options of iPhone/iPod and only on iPad?

Previously, I was using `&#39;UIViewController:presentModalViewController:animated&#39;` which worked fine, but since iOS 5.0, the API has been deprecated so I&#39;m switching over to the new one.

Visually, what I&#39;m looking to do is have the new controller slide in from the bottom of the screen, just like the old API used to do.

[updating with code]:

    // My root level view:
    UIViewController *vc = [[RootViewController alloc] 
                                initWithNibName:nil 
                                bundle:[NSBundle mainBundle]];
    navController = [[UINavigationController alloc] initWithRootViewController:vc];        
    ....

    // Within the RootViewController, Second view controller is created and added 
    // to the hierarchy. It is this view controller that is responsible for 
    // displaying the DetailView:
    SecondTierViewController *t2controller = [[SecondTierViewController alloc] 
                                               initWithNibName:nil
                                               bundle:[NSBundle mainBundle]];
    
    [self.navigationController pushViewController:t2controller animated:YES];

    // Created by SecondTierViewController 
    DetailViewController *controller = [[DetailViewController alloc] initWithNibName:nil                                                                                 
                                            bundle:[NSBundle mainBundle]];  
  
    controller.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    controller.modalPresentationStyle = UIModalPresentationCurrentContext;

    [self.navigationController presentViewController:controller 
                                            animated:YES 
                                            completion:nil];

presentViewController and displaying navigation bar

How can we get Exif information from UIImage selected from UIImagePickerController?

I had done much R&amp;D for this and got many replies but still failed to implement this.

I had gone through this [this](http://pastebin.com/dRHCMp7J) and [this](https://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos) link

Please help me to solve this problem.

Thanks in advance..

Get Exif data from UIImage - UIImagePickerController

I want to add a view under my tab bar analog in iOS and then show it with animation coming from behind it. But when I use my code, the view that must come from behind my tab bar  overlaps my tab bar for a while. 

![tab bar and a view that shows when tab bar button pressed][1]


  [1]: http://i.stack.imgur.com/72HWj.png

This is my code: 

    - (void)handlePressedButton {
    if (pressedButton.selected) {
        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:0.5];
        CGAffineTransform transform1 = CGAffineTransformMakeTranslation(-196.0, 0.0);
        CGAffineTransform transform2 = CGAffineTransformMakeTranslation(0.0, 0.0);
        [leftPanelView setTransform:transform1];
        [movedView setTransform:transform2];
        [UIView commitAnimations];
        pressedButton.selected = NO;
    }
    else {
        pressedButton.selected = YES;
        if (leftPanelView) {
            [leftPanelView removeFromSuperview];
            leftPanelView = nil;
        }
        CGRect viewFrame = CGRectMake(-196, 0, 236, 748);
        leftPanelView = [[UIView alloc] initWithFrame:viewFrame];
        leftPanelView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@&quot;left-nav-content.png&quot;]];
        
        // Code to populate leftPanelView according to what button is pressed.
        [self populateLeftPanelView];
        
        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:0.5];
        [self.view addSubview:leftPanelView];
        CGAffineTransform transform1 = CGAffineTransformMakeTranslation(236.0, 0.0);
        CGAffineTransform transform2 = CGAffineTransformMakeTranslation(112.0, 0.0);
        [leftPanelView setTransform:transform1];
        [movedView setTransform:transform2];
        [UIView commitAnimations];
    }
}

Here the leftPanelView is the view that must come under a tab bar. Moved view is another view, that is at the right of left panel (don&#39;t mind it)

How to add a view behind other view in iOS

I am getting this warning from storyboard - prototype table cells must have reuse identifiers.

I have renamed the identifier in the attributes inspector but it does not seem to have removed the warning. 

Any suggestions?

Storyboard warning: prototype table cells must have reuse identifiers

I have created a UISegmentedControl with two segments using the interface builder (from storyboard), but I would like to set the text of the two segments programmatically.  I want to do this because I am using NSLocalizedString for all of my buttons, labels, titles etc.
I create all the stuff in interface builder and then I add text programmatically.
I have manage to make every item to work that way but I cannot find a way to add text to my UISegmentedControl.

Is there any way to do that?
I ma trying to use the following but because the segmented control is already created in the interface builder it does not work.

    [segmentedControl initWithItems:[NSArray arrayWithObjects:NSLocalizedString(@&quot;Title 1&quot;, @&quot;Title 1&quot;),NSLocalizedString(@&quot;Title 2&quot;, @&quot;Title 2&quot;), nil]];

Thanks a lot

UISegmentedControl text programmatically

i have a UITableView, that displays expenses from a current month (see screenshot):



My problem is with the header for empty sections. is there any way to hide them?
The data is loaded from coredata.

this is the code that generates the header title:

TitleForHeader

    -(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
    if ([tableView.dataSource tableView:tableView numberOfRowsInSection:section] == 0) {
        return nil;
    } else {
    
    NSDate *today = [NSDate date ];
    int todayInt = [dataHandler getDayNumber:today].intValue;
    
    NSDate *date = [NSDate dateWithTimeIntervalSinceNow:(-(todayInt-section-1)*60*60*24)];
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:[[NSLocale preferredLanguages] objectAtIndex:0]]];    
    [dateFormatter setTimeStyle:NSDateFormatterNoStyle];
    [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
    NSString *formattedDateString = [dateFormatter stringFromDate:date];
        return formattedDateString;}

    }

ViewForHeader

    -(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    if ([tableView.dataSource tableView:tableView numberOfRowsInSection:section] == 0) {
        return nil;
    } else {

        UIView *headerView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 312, 30)];
        UILabel *title = [[UILabel alloc]initWithFrame:CGRectMake(4, 9, 312, 20)];
        UIView *top = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 312, 5)];
        UIView *bottom = [[UIView alloc]initWithFrame:CGRectMake(0, 5, 312, 1)];
        
        [top setBackgroundColor:[UIColor lightGrayColor]];
        [bottom setBackgroundColor:[UIColor lightGrayColor]];

        [title setText:[expenseTable.dataSource tableView:tableView titleForHeaderInSection:section]];
        [title setTextColor:[UIColor darkGrayColor]];
        UIFont *fontName = [UIFont fontWithName:@&quot;Cochin-Bold&quot; size:15.0];
        [title setFont:fontName];
        
        
        [headerView addSubview:title];
        [headerView addSubview:top];
        [headerView addSubview:bottom];
        
        return headerView;
    
    }

    }

heightForHeader

    - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
    
    NSLog(@&quot;Height: %d&quot;,[tableView.dataSource tableView:tableView numberOfRowsInSection:section] == 0);
    if ([tableView.dataSource tableView:tableView numberOfRowsInSection:section == 0]) {
        return 0;
    } else {
        return 30;
    }
    }

numberOfRowsInSection

    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
     {

    int rows = 0;
    for (Expense* exp in [dataHandler allMonthExpenses]) {
        if ([exp day].intValue == section) {
            rows++;
        }
    }
    
    return rows;
    }




![enter image description here][1]
sebastian


  [1]: http://i.stack.imgur.com/srwoS.png

UITableView: hide header from empty section

I noticed that with iMessage, animated gifs can now be sent and displayed. Does this mean that Apple is now supporting the display of animated GIFs in an application, or is the easiest method still to split the image in frames and then sequentially show them? What is the easiest way to display an animated GIF as of iOS 5.1?

Thanks!

Display animated GIF in iOS

I want to display an image in my `MKMapView` instead of little _rock pin_.

Can someone please put some helpful code here, or tell the way how to do it?

```
-(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:
    (id &lt;MKAnnotation&gt;)annotation {
    MKPinAnnotationView *pinView = nil; 
    if(annotation != mapView.userLocation) 
    {
        static NSString *defaultPinID = @&quot;com.invasivecode.pin&quot;;
        pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
        if ( pinView == nil ) pinView = [[MKPinAnnotationView alloc]
                                          initWithAnnotation:annotation reuseIdentifier:defaultPinID];
        
        pinView.pinColor = MKPinAnnotationColorGreen; 
        pinView.canShowCallout = YES;
        pinView.animatesDrop = YES;
        pinView.image = [UIImage imageNamed:@&quot;pinks.jpg&quot;]; //as suggested by Squatch
    } 
    else {
        [mapView.userLocation setTitle:@&quot;I am here&quot;];
    }
    return pinView;
}
```

I am expecting my image _pinks.jpg_ to be on the map, pinning the location instead of default pin view (_rock pin shaped_). But still I am getting the default image of the pin.

MKMapView: Instead of Annotation Pin, a custom view

What is the difference between GDB &amp; LLDB debuggers? I recently upgraded my Xcode version from 4.2 to 4.3 &amp; started getting warning to upgrade my debugger from GDB to LLDB.

GDB Vs LLDB debuggers

I have an issue I am troubleshooting which occurs very infrequently and doesn&#39;t seem to happen when I have things running under Xcode. 

Is it possible to run an app normally (i.e. from Springboard) until my issue occurs, and then attach a debugger at that point?

I would prefer to do this without jailbreaking if possible.

How to attach debugger to iOS app after launch?

I have a function in my *.m file

    - (void)myFunction {}
How can I find the line number this function?
 

How can I find a line number in Xcode?

I&#39;m using Xcode 4.3 for Objective-C development. 
One feature that I like in other text editors (I know Xcode is an IDE), is jumping to a method definition within the same code file. 

For example if I&#39;m in @implementation of Calculator and calculator has 10 methods, I will like a way to jump between them. 

If I press command+L I can jump to a specific line number, is there a way to jump in a similar way but to a method definition? e.g. instead of typing the line number to type only the beginning of the method name.




Can I open somehow a dialog box, type the beginning of a method signature and see instantly the search results and If I pick one method it will get me to it?

Is there a way to jump from a method to the next one?



Content Type	Original Author	Original Content on Stackoverflow
Question	TheLearner	View Question on Stackoverflow
Solution 1 - Iphone	Swapnil Luktuke	View Answer on Stackoverflow

How do I profile my app - the menu item is disabled?

Iphone Problem Overview

Iphone Solutions

Solution 1 - Iphone

Instruments automation trace only allows one target connection?

How do I center an anchor element in CSS?

Attributions