 - Attach your device connected your Mac
 - *Debug &gt; Attach to Process by PID or Name*
 - In the dialog sheet, enter the name of your App as it appears in the `Debug navigator` when started via Xcode (e.g. Target&#39;s name not bundle-id).

If the app is already running, the debugger will attach to the running process. If it isn&#39;t running, it will wait for the app to launch and then attach.

I&#39;ll leave this here since neither of the other 2 answers gave me quite enough detail without a little bit of a struggle.

 1. Run your app in the simulator and take note of the name in the Debug navigator 
![enter image description here][1]


 2. Plug in your device and don&#39;t forget to select your device as the target
![enter image description here][2]
 3. Debug &gt; Attach to Process &gt; By Process Identifier (PID) or Name
![enter image description here][3]
 4. Enter the name from step 1 and attach. That should be all you have to do.
![enter image description here][4]


  [1]: http://i.stack.imgur.com/xsFYU.png
  [2]: http://i.stack.imgur.com/zO48e.png
  [3]: http://i.stack.imgur.com/62hKS.png
  [4]: http://i.stack.imgur.com/RmbzS.png

In Xcode 5.0.1 and 6 it&#39;s the menu bar items:

    Debug &gt; Attach to Process &gt; By Process Identifier (PID) or Name...

In Xcode 7 it&#39;s just:

    Debug &gt; Attach to Process by PID or Name...

 I am getting this error as- 

**No enclosing instance of type GeoLocation is accessible. Must qualify the allocation with an enclosing instance of type GeoLocation (e.g. x.new A() where x is an instance of GeoLocation).** This error is coming on ***new ThreadTask(i)***. I don&#39;t know why is it happening. Any suggestions will be appreciated.

   

    public class GeoLocation {
		public static void main(String[] args) throws InterruptedException {
	    	int size = 10;
	
	        // create thread pool with given size
	        ExecutorService service = Executors.newFixedThreadPool(size); 
	
	        // queue some tasks
	        for(int i = 0; i &lt; 3 * size; i++) {
	            service.submit(new ThreadTask(i));
	        }
	
	        // wait for termination        
	        service.shutdown();
	        service.awaitTermination(Long.MAX_VALUE, TimeUnit.DAYS); 
	    }
	
	    class ThreadTask implements Runnable {
	    	private int id;
	
	        public ThreadTask(int id) {
	        	this.id = id;
	        }
	
	        public void run() {
	        	System.out.println(&quot;I am task &quot; + id);
	        }
	    }
		
	}

Must qualify the allocation with an enclosing instance of type GeoLocation

Is it possible to loop over tuples in bash?

As an example, it would be great if the following worked:

    for (i,j) in ((c,3), (e,5)); do echo &quot;$i and $j&quot;; done

Is there a workaround that somehow lets me loop over tuples?


Loop over tuples in bash?

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 an issue I am troubleshooting which occurs very infrequently and doesn'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.

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

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 am trying to add a drop shadow to views that are layered on top of one another, the views collapse allowing content in other views to be seen, in this vein i want to keep `view.clipsToBounds` ON so that when the views collapse their content is clipped.

This seems to have made it difficult for me to add a drop shadow to the layers as when i turn `clipsToBounds` ON the shadows are clipped also.

I have been trying to manipulate `view.frame` and `view.bounds` in order to add a drop shadow to the frame but allow the bounds to be large enough to encompass it, however I have had no luck with this.

Here is the code I am using to add a Shadow (this only works with `clipsToBounds` OFF as shown)

    view.clipsToBounds = NO;
    view.layer.shadowColor = [[UIColor blackColor] CGColor];
    view.layer.shadowOffset = CGSizeMake(0,5);
    view.layer.shadowOpacity = 0.5;

Here is a screenshot of the shadow being applied to the top lightest grey layer. Hopefully this gives an idea of how my content will overlap if `clipsToBounds` is OFF.

![Shadow Application.][1]


  [1]: http://i.stack.imgur.com/CeyVz.png

How can I add a shadow to my `UIView` and keep my content clipped?

Edit: Just wanted to add that I have also played around with using background images with shadows on, which does work well, however I would still like to know the best coded solution for this.

What&#39;s the best way to add a drop shadow to my UIView

I use timeZoneWithName, but I don&#39;t know names of timezones. Where can I find a list of timezones? 

    [NSTimeZone timeZoneWithName:@&quot;US/Eastern&quot;];


Where can I find a list of timezones?

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?



Is there a way to jump to a specific method in Xcode?

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 found a few other posts that show how to add a script to increment the build number with a script:

https://stackoverflow.com/questions/9258344/xcode-better-way-of-incrementing-build-number

https://stackoverflow.com/questions/7371345/xcode-projects-build-number

https://stackoverflow.com/questions/4694070/can-xcode-insert-the-version-number-into-a-librarys-filename-when-building

But what I want to do, is only increase the build number when I use ARCHIVE (both before and after).

Example:
If current build number is 21, then when I choose Product &gt; Archive the build number will be increased to 22, it will go through its process of building and creating the Archive file with the build number of 22, and then when it is finished archiving, it will increase the build number to 23.


Xcode-Increment build number only during ARCHIVE?

My problem is that I was looking for way to use both **storyboard** and **xib**. But I can&#39;t find proper way to load and show storyboard programmatically. Project was started developing with xib, and now it&#39;s very hard to nest all xib files in storyboard. So I was looking a way to do it in code, like with `alloc, init, push` for viewControllers. In my case I have only one controller in storyboard: `UITableViewController`, which has static cells with some content I want to show. If anyone knows proper way to work both with xib and storyboard without huge refactoring, I will appreciate for any help.

How can I load storyboard programmatically from class?

In Xcode, GDB allows you to change local variables while debugging (see https://stackoverflow.com/questions/4858159/how-to-change-nsstring-value-while-debugging-in-xcode). Does LLDB offer a similar functionality? If so, how can we use it? 

How to change variables value while debugging with LLDB in Xcode?

When I program in Javascript, I find it *extremely* convenient to be able to use the debugger to halt program execution at any point and to be able to runs commands and inspect variables from there.

Now, back in Haskell, is there a way to run arbitrary functions in the interactive GHCI REPL or am I limited to things declared at the toplevel?

What is the &quot;standard&quot; approach to working and debugging inner functions and values?

What is the best way to test and interact with inner functions defined inside a toplevel function?

I&#39;m testing some cookies that I&#39;m creating via JavaScript. Is there a way to check if the cookie was set in Chrome Developer Tools or something similar? 

How do you check cookies using Chrome?

I want to force the Chrome debugger to break on a line _via code_, or else using some sort of comment tag such as something like `console.break()`.


How to set a JavaScript breakpoint from code in Chrome?

I have very simple extension:

manifest.json

    {
      &quot;name&quot;: &quot;historyCleaner&quot;,
      &quot;version&quot;: &quot;0.1.1&quot;,
      &quot;manifest_version&quot;: 1,
      &quot;description&quot;: &quot;This is my first Chrome extension&quot;,
      &quot;background&quot;: {
        &quot;scripts&quot;: [&quot;cleaner.js&quot;]
      }, 
      &quot;permissions&quot;: [
        &quot;history&quot;
      ]
    }

cleaner.js

    chrome.history.onVisited.addListener(function(HistoryItem result) {
    
      console.log(&quot;it works!&quot;);
      alert(&quot;it works!&quot;);
    
    });

I&#39;ve loaded it in Google Chrome, it is turned on and... it doesn&#39;t work. It doesn&#39;t log anything in console, it doesn&#39;t alert anything and what is worse, I can&#39;t find it in developers tools &quot;Scripts&quot; tab. How can I find why it doesn&#39;t work?

//edit

I&#39;ve changed manifest.json to this one:

    {
      &quot;name&quot;: &quot;historyCleaner&quot;,
      &quot;version&quot;: &quot;0.1.5&quot;,
      &quot;manifest_version&quot;: 1,
      &quot;description&quot;: &quot;This is my first Chrome extension&quot;,
      &quot;background_page&quot;: &quot;background.html&quot;,
      &quot;permissions&quot;: [
        &quot;history&quot;,
        &quot;background&quot;
      ]
    }

And embeded JavaScript in background.html

Content Type	Original Author	Original Content on Stackoverflow
Question	Locksleyu	View Question on Stackoverflow
Solution 1 - Ios	Ole Begemann	View Answer on Stackoverflow
Solution 2 - Ios	Adam Johns	View Answer on Stackoverflow
Solution 3 - Ios	PiTheNumber	View Answer on Stackoverflow
Solution 4 - Ios	Japes	View Answer on Stackoverflow

How to attach debugger to iOS app after launch?

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Solution 3 - Ios

Solution 4 - Ios

Loop over tuples in bash?

Must qualify the allocation with an enclosing instance of type GeoLocation

Attributions