Syntax of plist is pretty much like XML, so you can use XML style comments.

    &lt;!--
    &lt;dict&gt;
        &lt;key&gt;Hello&lt;/key&gt;
        &lt;string&gt;World&lt;/string&gt;
    &lt;/dict&gt; 
    --&gt;

Xcode seems to believe that the `&lt;comment&gt;` tag corrupts the data. It will also strip out XML-style `&lt;!-- comments --&gt;` when viewing the plist in Xcode. It seems that a string entry, e.g.

    &lt;key&gt;Comment&lt;/key&gt;
    &lt;string&gt;My comment&lt;/string&gt; 

is the only way to reliably persist the comments.

I have a Spring MVC method which returns a `ResponseEntity`. Depending on the specific data retrieved, it *sometimes* needs to return a stream of data to the user. Other times it will return something other than a stream, and sometimes a redirect. I most definitely want this to be a stream and not a byte array since it can be large.

Currently, I return the stream using the following snippet of code:

    HttpHeaders httpHeaders = createHttpHeaders();
    IOUtils.copy(inputStream, httpServletResponse.getOutputStream());

    return new ResponseEntity(httpHeaders, HttpStatus.OK);

Unfortunately, this does not allow the Spring `HttpHeaders` data to actually populate the HTTP Headers in the response. This makes sense since my code writes to the `OutputStream` before Spring receives the `ResponseEntity`.

It would be very nice to somehow return a `ResponseEntity` with an `InputStream` an let Spring handle it. It also would parallel the other paths of my function where I can successfully return a `ResponseEntity`. Is there anyway I can accomplish this with Spring?

---

Also, I did try returning the `InputStream` in the `ResponseEntity` just to see if Spring would accept it.

    return new ResponseEntity(inputStream, httpHeaders, HttpStatus.OK);

But it throws this exception:

    org.springframework.web.HttpMediaTypeNotAcceptableException: Could not find acceptable representation


---
I can get my function to work by setting everything on the `HttpServletResponse` directly, but I would like to do this only with Spring.

Return a stream with Spring MVC&#39;s ResponseEntity


I want to write a query like `SELECT * FROM Release_date_type a LEFT JOIN cache_media b on a.id=b.id`. I am new to Spring Data JPA. I don&#39;t know how to write entities for Join query. Here is an attempt:

    @Entity
    @Table(name = &quot;Release_date_type&quot;)
    public class ReleaseDateType {
    
    	@Id
    	@GeneratedValue(strategy=GenerationType.TABLE)
    	private Integer release_date_type_id;
    	// ...
    	@Column(nullable = true) 
    	private Integer media_Id;
        // with getters and setters...
    }
    

 Another entity is: 

    @Entity
    @Table(name = &quot;Cache_Media&quot;)
    public class CacheMedia {
    
	    @Id
	    @GeneratedValue(strategy=GenerationType.TABLE)
    	private Integer id;
	    // ...
    	private Date loadDate; //with the getter and setter ..
    }

I want to write a `crudRepository` interface such as 

    public interface ReleaseDateTypeRepository extends CrudRepository&lt;ReleaseDateType, Long&gt;{
        @Query(&quot;SELECT * FROM Release_date_type a LEFT JOIN cache_media b on a.id=b.id&quot;)
        public List&lt;ReleaseDateType&gt; FindAllWithDescriptionQuery();
    }

Joining two table entities in Spring Data JPA

How do I comment out lines in my `.plist` file in my iOS/Mac projects?

I want to comment out the settings that I don&#39;t want to expose for this version of the project, but I may want to expose it later.

How do I comment lines in .plist file?

<p>How do I comment out lines in my <code>.plist</code> file in my iOS/Mac projects?</p>
<p>I want to comment out the settings that I don't want to expose for this version of the project, but I may want to expose it later.</p>


Sometimes when I run an application on device from Xcode I would try to access the keychain but fail due to error -34018. This doesn&#39;t match any of the documented keychain error codes and can&#39;t be consistently reproduced. (happens maybe 30% of the time, and it&#39;s not clear to me why it happens). What makes debugging this problem very difficult is the total lack of documentation. Any idea what causes this and how to fix it? I&#39;m using Xcode 5 and running iOS 7.0.4 on device.

There is an open issue about this here: https://github.com/soffes/sskeychain/issues/52

**EDIT: Adding keychain access code per request**

I&#39;m using the `SSKeychain` library for interfacing with keychain. Here&#39;s the snippet.

    #define SERVICE @&quot;default&quot;
    
    @implementation SSKeychain (EXT)
    
    + (void)setValue:(NSString *)value forKey:(NSString *)key {
        NSError *error = nil;
        BOOL success = NO;
        if (value) {
            success = [self setPassword:value forService:SERVICE account:key error:&amp;error];
        } else {
            success = [self deletePasswordForService:SERVICE account:key error:&amp;error];
        }
        NSAssert(success, @&quot;Unable to set keychain value %@ for key %@ error %@&quot;, value, key, error);
        if (!success) {
            LogError(@&quot;Unable to set value to keychain %@&quot;, error);
        }
        LogTrace(@&quot;Will set keychain account %@. is to nil? %d&quot;, key, value == nil);
        if (value == nil)
            LogWarn(@&quot;Setting keychain %@ to nil!!!&quot;, key);
    }
    
    + (NSString *)valueForKey:(NSString *)key {
        NSError *error = nil;
        NSString *value = [self passwordForService:SERVICE account:key error:&amp;error];
        if (error &amp;&amp; error.code != errSecItemNotFound) {
            NSAssert(!error, @&quot;Unable to retrieve keychain value for key %@ error %@&quot;, key, error);
            LogError(@&quot;Unable to retrieve keychain value for key %@ error %@&quot;, key, error);
        }
        return value;
    }
    
    + (BOOL)removeAllValues {
        LogInfo(@&quot;Completely Reseting Keychain&quot;);
        return [[self accountsForService:SERVICE] all:^BOOL(NSDictionary *accountInfo) {
            return [self deletePasswordForService:SERVICE account:accountInfo[@&quot;acct&quot;]];
        }];
    }
    
    @end



Vast majority of the time it&#39;s just fine. Sometimes I&#39;ll hit the assertion failures where I&#39;m unable to either write to or read from keychain, causing critical assertion failure. 

SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)

I&#39;m a beginner in iPhone development and I tried to create an `ipa` with my profile and valid certificate but xcode is creating a generic xcode archive file instead of iOS app archive because in my code there are two `.xcodeproj` in there.

And from one of the `stack overflow answer` I followed the following steps:

 1. Skip install is NO for the main project target
 2. Skip install is YES for framework (sub-projects) targets
 3. Sub-projects need to have Copy Headers in Project not Public
 4. Installation Directory under Deployment is valid (/Applications for example)

But I&#39;m still not getting the solution.


xcode is creating generic xcode archive instead of iOS App Archive

I want to test my website on Safari on my ipad. I only have another PC. Is there a way for me to do remote debugging like ADB with mobile Chrome? I searched on StackOverflow, seems there is an Adobe Edge Inspect CC, but I don&#39;t know if this is a good choice. 

Thanks!

Debug ipad safari with a PC

Trying to grasp a basic concept of how distancing with ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true documentation on how far exactly an ibeacon can measure. Lets say I am 300 feet away...is it possible for an ibeacon to detect this?

Specifically for v4 &amp;. v5 and with iOS but generally any BLE device.

How does Bluetooth frequency &amp; throughput affect this? Can beacon devices enhance or restrict the distance / improve upon underlying BLE? 

ie

                   | Range	     | Freq       | T/sec      | Topo       |      
                   |–—–––––––––––|–—––––––––––|–—––––––––––|–—––––––––––|
    Bluetooth v2.1 | Up to 100 m | &lt; 2.481ghz | &lt; 2.1mbit  | scatternet |
                   |-------------|------------|------------|------------|
    Bluetooth v4   |     ?       | &lt; 2.481ghz | &lt; 305kbit  | mesh       |
                   |-------------|------------|------------|------------|
    Bluetooth v5   |     ?       | &lt; 2.481ghz | &lt; 1306kbit | mesh       |



Understanding ibeacon distancing

I want to use a custom `UINavigationBar` in one of my views, which is not a part of any `UINavigationController`-hierarchy. When I drag a `UINavigationBar` into Storyboard, it shows like this:

![UINavigationBar][1]

This bar is 44px, which would be enough if the status bar wouldn&#39;t share this space. Because iOS7 lets us use the entire screen, including the space for the status bar, the `UINavigationBar` should be 64px tall, not 44px.

If I connect the view to a `UINavigationController`&#39;s hierarchy, then it shows correct:

![UINavigationController][2]

I read somewhere that **if** the `UINavigationBar` has the property `barPosition:` set to `UIBarPositionTopAttached`, then the bar would be 64px. This is, however, a `readonly`-property.

My search results have only shown something I consider a &quot;work-around&quot;. By adding a useless `UINavigationController` before this `UIViewController`, I can pretend to have a hierarchy, and it will add the `UINavigationBar` with 64px automatically.

Is there **really** no way to have a &#39;rogue&#39;(without the help of a navigation controller) `UINavigationBar` that covers 64px?
If that is the case, is there any valid reasons as to why?

(I&#39;m not saying the `UINavigationBar` should be 64px by default, but there should be an option for it in the inspector)

(I also see people answering with programmatic ways to solve this. Even though these answers works, I&#39;d still have to *design* the storyboard with that in mind (a gap). What I want to know is if it&#39;s possible to set this in storyboard, or rather, why isn&#39;t it allowed?)

  [1]: http://i.stack.imgur.com/yklxv.png
  [2]: http://i.stack.imgur.com/jqssv.png

Is there a way to change the height of a UINavigationBar in Storyboard without using a UINavigationController?

I want to install PIL on Mavericks using pip but get this error.

    _imagingft.c:73:10: fatal error: &#39;freetype/fterrors.h&#39; file not found
    #include &lt;freetype/fterrors.h&gt;
             ^
    1 error generated.
    error: command &#39;cc&#39; failed with exit status 1

My Command Line Tools are installed and up to date and every hint I found didn&#39;t help.
How can I get this to compile?

EDIT: I just checked, freetype is also already installed via homebrew

Error installing Python Image Library using pip on Mac OS X 10.9

According to the Homebrew site, to install it, I need to type:

    brew install wget

I get an error message:

    -bash: brew: command not found
Found [this answer][1].  The problem, however, is I don&#39;t see `brew` in `/usr/local/bin`.

I added the below line to my `.bashrc` file

    export PATH=/usr/local/bin:$PATH

Still getting the `command not found` error.

How do I install Homebrew on macOS?


  [1]: https://stackoverflow.com/questions/14288682/error-installing-homebrew-brew-command-not-found

Installing Homebrew on macOS

I am using OS 10.9 on mac machine. I want to know the version of gcc I am using. So I tried `gcc --version` on terminal and it results :

    $ gcc --version
    Configured with: --prefix=/Applications/Xcode5-DP.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode5-DP.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/c++/4.2.1
    Apple LLVM version 5.0 (clang-500.1.58) (based on LLVM 3.3svn)
    Target: x86_64-apple-darwin13.0.0
    Thread model: posix

Here in output, there is no detail related to gcc but clang is there. I am confused 
whether gcc command executes clang or gcc(gnu).
  

how to find gcc version on mac

Since I installed OS X Mavericks, the result of the command `git diff` is rendering `ESC[xxx` characters like this:

    ESC[1mdiff --git a/console/org.linkedin.glu.console-webapp/decorate-grails-methods-plugin/plugin.xml b/console/org.linkedin.glu.console-webapp/decorate-grails-methods-plugin/plugin.xmlESC[m
    ESC[1mindex 3b65cf1..0ca5d7e 100644ESC[m
    ESC[1m--- a/console/org.linkedin.glu.console-webapp/decorate-grails-methods-plugin/plugin.xmlESC[m
    ESC[1m+++ b/console/org.linkedin.glu.console-webapp/decorate-grails-methods-plugin/plugin.xmlESC[m
    ESC[36m@@ -15,14 +15,14 @@ESC[m ESC[mThe purpose of this plugin is to decorate various grails methods.ESC[m

This used to render properly prior to installing Mavericks. I have no clue what is different so any help in troubleshooting would be much appreciated.

Note that the pager used is `less` since when I hit `h` I get the following:

                 SUMMARY OF LESS COMMANDS

    Commands marked with * may be preceded by a number, N.
    Notes in parentheses indicate the behavior if N is given.


How to get rid of ESC[ characters when using git diff on Mac OS X Mavericks?

On my mac I&#39;ve got php installed and working fine. I recently wanted to install mcrypt, so I did so using brew. Although it seemed to install fine, it doesn&#39;t show up in my phpinfo(). So I think that the php that brew installed mcrypt in, isn&#39;t the php that apache uses.

Does anybody know how I can:

 1. check whether there is a difference between the php installed by brew and the php which Apache uses?
 2. make apache use the php that brew installed?

All tips are welcome!

How to use the php that brew installed?

In iOS 8, when we create an app extension, we have to decide which target it is attached to. The extension will have the same bundle ID&#39;s prefix as the target.

 1. Is there any way to change the target afterward?
 2. If my project contains 2 (or more) targets (for example one for debug/simulator, one for production/device), what&#39;s the best way to work with extensions? Do I need to create another extension and duplicate the code (very bothersome to keep the same code for both targets)?

iOS extensions with multiple targets

As you might know the **iOS 8** requires **NSLocationWhenInUseUsageDescription** key for using user&#39;s location. I have added this key and some general information into my info plist. 
![enter image description here][1] 


  [1]: http://i.stack.imgur.com/6gzmx.png


How can I use translation string inside the plist file ?

-- Update --

I already have a Localizable string. I&#39;m just wondering that can I use something like 
NSLocalizedString(MYSTRING,nil) inside the plist string. I know that I can create multiple file of info.plist for localisation but I was wondering there might be an easier way.

How to localise a string inside the iOS info.plist file?

Getting a error while executing the `plist` file in `terminal`

ERROR : `Path had bad ownership/permissions`

1) I created a plist file using `xcode 6` and saved the plist file in path `library/launchdaemons/myfile.plist` 

*myfile.plist*

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
    &lt;!DOCTYPE plist PUBLIC &quot;-//Apple//DTD PLIST 1.0//EN&quot; &quot;http://www.apple.com/DTDs/PropertyList-1.0.dtd&quot;&gt;
    &lt;plist version=&quot;1.0&quot;&gt;
    &lt;dict&gt;
    	&lt;key&gt;Label&lt;/key&gt;
    	&lt;string&gt;myfile&lt;/string&gt;
    	&lt;key&gt;ProgramArguments&lt;/key&gt;
    	&lt;array&gt;
    		&lt;string&gt;/Desktop/myscript.sh&lt;/string&gt;
    	&lt;/array&gt;
    	&lt;key&gt;StartCalendarInterval&lt;/key&gt;
    	&lt;array&gt;
    		&lt;dict&gt;
    			&lt;key&gt;Hour&lt;/key&gt;
    			&lt;integer&gt;14&lt;/integer&gt;
    			&lt;key&gt;Minute&lt;/key&gt;
    			&lt;integer&gt;35&lt;/integer&gt;
    		&lt;/dict&gt;
    	&lt;/array&gt;
    &lt;/dict&gt;
    &lt;/plist&gt;

2) In terminal i used the `sudo launchctl load` command to load the `plist` file 

    sudo launchctl load /library/launchdaemons/myfile.plist

3) After that i am getting this error

    /Library/LaunchDaemons/myfile.plist: Path had bad ownership/permissions

Where i am going wrong ?

  

Error while executing .plist file Path had bad ownership/permissions

iOS 10, Now Requires User Permission to Access Media Library, Photos, Camera and other Hardware like these. The solution for this is to add their keys into `info.plist` with a description for user that how we are using their data,

I could only find a few keys 

    NSPhotoLibraryUsageDescription
    NSMicrophoneUsageDescription
    NSCameraUsageDescription

I want to know if there are more keys also for other hardware as in `iOS 10` **if you haven&#39;t provided `info.plist` with proper keys description your application will crash** if build using XCode - 8 beta.

iOS 10 - Changes in asking permissions of Camera, microphone and Photo Library causing application to crash

Using `iOS 10.0` last beta. I had tried to use Camera to scan barcode in my app, and it crashed with this runtime error.

&gt; This app has crashed because it attempted to access privacy-sensitive
&gt; data without a usage description.  The app&#39;s Info.plist must contain
&gt; an NSCameraUsageDescription key with a string value explaining to the
&gt; user how the app uses this data.

Put this key into the plist, but it still crashed? 

NSCameraUsageDescription in iOS 10.0 runtime crash?

I need to set Spanish as development language for an iOS app. I&#39;m already using Xcode 6, and I changed the `Localization native development region` entry in app&#39;s `Info.plist` (`CFBundleDevelopmentRegion`) from &quot;en&quot; to &quot;es&quot;. However, in Project &gt; Info &gt; Localizations, English remains set as Development Language.

As said in [Information Property List Key Reference][1], `CFBundleDevelopmentRegion` specifies the default language. I need to set Spanish to the default language, what am I missing?

Thanks


  [1]: https://developer.apple.com/library/ios/documentation/general/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html#//apple_ref/doc/uid/20001431-130430

Changing the development language in Xcode

I&#39;m running into what seems to be common error, in that Xcode can&#39;t seem to find my &#39;Info.plist&#39; file. 

I&#39;ve checked the answers to these two StackOverflow questions ([Could not read from Info.plist][1] and [Objective C/Xcode error: The file “Info.plist” couldn’t be opened because there is no such file][2])...I am using a relative path, and the plist file is in the correct absolute location. The type and location are correct as shown in the image below: 



![plist path][3]


My biggest concern is that this is now happening on multiple projects, including one I ran successfully just a few hours ago! Does anyone know how to solve this???

  [1]: https://stackoverflow.com/questions/9880184/could-not-read-from-info-plist?lq=1
  [2]: https://stackoverflow.com/questions/3532019/objective-c-xcode-error-the-file-info-plist-couldn-t-be-opened-because-there
  [3]: http://i.stack.imgur.com/9UT36.png

**EDIT** I&#39;ve also tried reinstalling XCODE and replacing the plist file. Xcode still can&#39;t find &#39;info.plist&#39;. 

**NOTE** I wanted to add that this was for Xcode 6.2.X (I can&#39;t remember which version number exactly, but it was pre-Xcode 6.3.X).

Info.plist Utility Error: &quot;Info.plist couldn&#39;t be opened because there is no such file&quot;

Recently I started to get this error: 

&gt; NSPhotoLibraryUsageDescription key must be present in Info.plist to
&gt; use camera roll.

I am using React Native to build my app (I am not familiar with ios native development) and I don&#39;t know how to add this key to Info.plist

Can you post an example? Thanks

I am using npm package `&quot;react-native-camera-roll-picker&quot;: &quot;^1.1.7&quot;`

[![enter image description here][1]][1]


  [1]: http://i.stack.imgur.com/bjqgwm.png

NSPhotoLibraryUsageDescription key must be present in Info.plist to use camera roll

&gt;    error: Multiple commands produce &#39;/Users/uesr/Library/Developer/Xcode/DerivedData/OptimalLive-fxatvygbofczeyhjsawtebkimvwx/Build/Products/Debug-iphoneos/OptimalLive.app/Info.plist&#39;:
    1) Target &#39;OptimalLive&#39; has copy command from &#39;/Users/uesr/Desktop/workSpace/SEALIVE/SeaLive1.1/OptimalLive/Info.plist&#39; to &#39;/Users/uesr/Library/Developer/Xcode/DerivedData/OptimalLive-fxatvygbofczeyhjsawtebkimvwx/Build/Products/Debug-iphoneos/OptimalLive.app/Info.plist&#39;
    2) Target &#39;OptimalLive&#39; has copy command from &#39;/Users/uesr/Desktop/workSpace/SEALIVE/SeaLive1.1/OptimalLive/Server/Masonry/Info.plist&#39; to &#39;/Users/uesr/Library/Developer/Xcode/DerivedData/OptimalLive-fxatvygbofczeyhjsawtebkimvwx/Build/Products/Debug-iphoneos/OptimalLive.app/Info.plist&#39;
    3) Target &#39;OptimalLive&#39; has process command with input &#39;/Users/uesr/Desktop/workSpace/SEALIVE/SeaLive1.1/OptimalLive/Info.plist&#39;

Running the code in Xcode9 works, but there is a error in Xcode10.

Xcode 10 Error: Multiple commands produce

I&#39;ve submitted my app for review to the App Store Connect. Although the app is still under review, I&#39;ve received an email to inform me that I have to fix an error. Here is the content of the message: 

&gt; Dear Developer,
&gt; 
&gt; We identified one or more issues with a recent delivery for your  app
&gt; XXXXX. Your delivery was successful, but you  may wish to correct the
&gt; following issues in your next delivery:
&gt; 
&gt; &quot;Missing Purpose String in Info.plist File. Your app&#39;s code 
&gt; references one or more APIs that access sensitive user data. The 
&gt; app&#39;s Info.plist file should contain a 
&gt; NSLocationAlwaysUsageDescription key with a user-facing purpose 
&gt; string explaining clearly and completely why your app needs the  data.
&gt; Starting spring 2019, all apps submitted to the App Store  that access
&gt; user data will be required to include a purpose  string.If you&#39;re
&gt; using external libraries or SDKs, they may  reference APIs that
&gt; require a purpose string. While your app might  not use these APIs, a
&gt; purpose string is still required. You can  contact the developer of
&gt; the library or SDK and request they  release a version of their code
&gt; that doesn&#39;t contain the APIs. 
&gt; 
&gt; 
&gt;  After you’ve corrected the issues, you can use Xcode or   Application
&gt; Loader to upload a new binary to iTunes Connect.
&gt; 
&gt;  Best regards,
&gt; 
&gt;  The App Store Team


My app is fully built with Expo and I don&#39;t know how to access and modify the Info.plist. 

Any idea?


Content Type	Original Author	Original Content on Stackoverflow
Question	Enrico Susatyo	View Question on Stackoverflow
Solution 1 - Ios	Enrico Susatyo	View Answer on Stackoverflow
Solution 2 - Ios	Vizllx	View Answer on Stackoverflow

How do I comment lines in .plist file?

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Joining two table entities in Spring Data JPA

Return a stream with Spring MVC's ResponseEntity

Attributions