Here&#39;s [Apple&#39;s documentation on the &quot;LSRequiresiPhoneOS&quot; bits](http://developer.apple.com/library/ios/documentation/general/Reference/InfoPlistKeyReference/Articles/LaunchServicesKeys.html#//apple_ref/doc/uid/TP40009250-SW2) of an application&#39;s info.plist file.

Basically all it means is that the app is designed to run under iOS.  This flag should be set to YES no matter if the target device is an iPhone, iPod Touch or iPad.

Who knows, maybe in the not-so-distant future, MacOS will be able to run iOS apps (or vice versa)?

&gt; **Possible Duplicate:**  
&gt; [How to create comma separated list from array in PHP?](https://stackoverflow.com/questions/2435216/how-to-create-comma-separated-list-from-array-in-php)  

&lt;!-- End of automatically inserted text --&gt;

Given this array:

    $tags = array(&#39;tag1&#39;,&#39;tag2&#39;,&#39;tag3&#39;,&#39;tag4&#39;,&#39;...&#39;);

How do I generate this string (using PHP):

    $tags = &#39;tag1, tag2, tag3, tag4, ...&#39;;

How to convert items in array to a comma separated string in PHP?

In general I need to get all user media.

User has more than 250 photos.

I do `/users/1/media/recent/?access_token=...&amp;count=250`

But it returns only 20 photos.

Maybe instagram has a limit for getting media. 
If it is, response has a pagination to solve it. 
But there are only max ID photo. How to know the first (min) ID photo to paginate it then?


Instagram API: How to get all user media?

I&#39;m having trouble understanding the specific requirements in the `info.plist` file in my app. Should I change it at all, or are the default settings typically the &quot;correct&quot; options?

Specifically, the entry: **APPLICATION REQUIRES IPHONE ENVIRONMENT** 

If set to yes, does that imply only an **iPhone** is capable of running my app, meaning an iPod Touch or iPad won&#39;t be able to run the app?

What is the meaning of the &quot;Application Requires iPhone Environment&quot; key in info.plist?

I'm having trouble understanding the specific requirements in the <code>info.plist</code> file in my app. Should I change it at all, or are the default settings typically the "correct" options?
Specifically, the entry: APPLICATION REQUIRES IPHONE ENVIRONMENT
If set to yes, does that imply only an iPhone is capable of running my app, meaning an iPod Touch or iPad won't be able to run the app?

I drag a Round Rect Button to the position of the right Bar Button Item, and set an image to the Round Rect Button. All works well, except the warning &quot;Plain Style unsupported in a Navigation Item&quot;. Even if i select the style of the Bar Button Item to &quot;Bordered&quot;, warning still be there. What&#39;s the matter with Xcode 4.2? Thanks in advance!

Ps. I customized many Bar Button Items with Round Rect Button, some times Xcode 4.2 shows only one warning on a Bar Button Item, some times shows warnings on all Bar Button Items. 

&quot;Plain Style unsupported in a Navigation Item&quot; warning with my customized Bar Button Item

SO, I am adding a gesture recogniser to an overlay view. When tapped on screen i want this overlay to go away. Having said that adding a gesture recognizer overrides the &quot;touch up inside&quot; and other button click events. I need this back therefore i need to removegesturerecognizer. I can use this method however i have a problem. My code below -    

    - (void)helpClicked
    {
        CGRect visibleBounds = [self convertRect:[self bounds] toView:viewContainer];
        CGFloat minimumVisibleX = CGRectGetMinX(visibleBounds);
        UIImageView * helpOverlay = [[UIImageView alloc]initWithFrame:CGRectMake(minimumVisibleX, 0, 1024, 768)];
        UIImage * helpImage = [UIImage imageNamed:@&quot;HelpOverLay.png&quot;];
        [helpOverlay setImage:helpImage];
        helpOverlay.tag = 50;
        self.scrollEnabled = NO;
        [self addSubview:helpOverlay]; 
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] 
                                   initWithTarget:self
                                   action:@selector(dismissView)];
    
    [self addGestureRecognizer:tap];    
}

Here i am taking the overlay off the other view. 

    - (void) dismissView
    {
        UIView *overlay = [self viewWithTag:50];
        [overlay removeFromSuperview];
        self.scrollEnabled = YES;
    }

My question is how do i remove the gesture recognizer in the second method? I cant pass the variable tap into this method nor can i remove it in the previous method either. Any pointers? Ive been stuck with quite a lot of passing variable problems when it comes to events.


How to remove gesture recogniser

I&#39;ve seen posts regarding right alignment but I can&#39;t get left-alignment to work.  I want the button to take up the width of the screen, with the image on the left and the title/text in the center.

This does not work (at least reliably):

        button.titleLabel.textAlignment = UITextAlignmentCenter;
        [button setImageEdgeInsets:UIEdgeInsetsMake(0, -60.0, 0, 0)];
        button.frame = CGRectMake((self.view.frame.size.width - w ) / 2, self.view.frame.size.height - 140.0,  self.view.frame.size.width - 10.0, 40.0);





Left-align image and center text on UIButton

Is it possible to do a fade in and fade out transition between View Controllers in Storyboard. Or without transition.

If it&#39;s possible, what&#39;s the code for it?

How do I do a Fade/No transition between view controllers

I created a Text Field in Interface Builder.  I set it&#39;s &quot;Return Key&quot; to Done.  This is a one line only input (so it wont need multiple lines).

How do I hide the virtual keyboard when the user taps the done button?

How to hide Textbox Keyboard when &quot;Done / Return&quot; Button is pressed Xcode 4.2

I would like to ask what&#39;s the reason behind using `FOUNDATION_EXPORT` instead of `extern` in _Objective C_ projects.

I&#39;ve checked [this question][1] and using `FOUNDATION_EXPORT` has earned whopping 340 points (1st place) whereas using `extern` only 74 points (2nd place). 

Could anybody explain why? Is there any practical reason for using `FOUNDATION_EXPORT` instead of `extern`?

Thanks!

  [1]: https://stackoverflow.com/questions/538996/constants-in-objective-c

&quot;FOUNDATION_EXPORT&quot; vs &quot;extern&quot;

I am doing command line xcodebuild using a shell script.  My problem is if I open and close the `xx.xcodeproj` file once and then use that command it works well.

Somehow if I get deep into the file changes, this `project.xcworkspace` is the only file that has changed.  Is this file valid and should I check it into version control?
Will this cause any issues?

I&#39;ve heard that it&#39;s as important as `.pbxproj`: is this true?

I couldn&#39;t find any valid documentation which talks about the roles and responsibilities of various files in the xcode project files.  Please provide links which help me to understand that.

Is the project.xcworkspace file important?

I ran into a scenario where I had a delegate callback which could occur on either the main thread or another thread, and I wouldn&#39;t know which until runtime (using `StoreKit.framework`).

I also had UI code that I needed to update in that callback which needed to happen before the function executed, so my initial thought was to have a function like this:

    -(void) someDelegateCallback:(id) sender
    {
        dispatch_sync(dispatch_get_main_queue(), ^{
            // ui update code here
        });

        // code here that depends upon the UI getting updated
    }

That works great, when it is executed on the background thread. However, when executed on the main thread, the program comes to a deadlock.

That alone seems interesting to me, if I read the docs for `dispatch_sync` right, then I would expect it to just execute the block outright, not worrying about scheduling it into the runloop, as said [here](https://developer.apple.com/library/mac/documentation/Performance/Reference/GCD_libdispatch_Ref/Reference/reference.html#//apple_ref/c/func/dispatch_sync):

 &gt; As an optimization, this function invokes the block on the current thread when possible.

But, that&#39;s not too big of a deal, it simply means a bit more typing, which lead me to this approach:

    -(void) someDelegateCallBack:(id) sender
    {
        dispatch_block_t onMain = ^{
            // update UI code here
        };

        if (dispatch_get_current_queue() == dispatch_get_main_queue())
           onMain();
        else
           dispatch_sync(dispatch_get_main_queue(), onMain);
    }

However, this seems a bit backwards. Was this a bug in the making of GCD, or is there something that I am missing in the docs?

Why can&#39;t we use a dispatch_sync on the current queue?

I am pretty new to iOS and Xcode.

I tried to load an image with 

    [UIImage imageNamed:@&quot;imageName.png/jpg and so on&quot;];
but it only returns nil. The image should be in my project bundle, considering the fact that I can choose it from drag and drop menus in the InterfaceBuilder and it was added to Xcode via the &quot;Add files to &quot;projectname&quot;...&quot; menu.

It makes no difference whether I use .png or .jpg images, the result stays the same: they work via IB but not if I try to run the imageNamed method myself.

UIImage imageNamed returns nil

I just upgraded to xcode 4.5 with iOS 6.0 and it&#39;s highlighting a warning on all the UILabels in my XIB files saying &quot;minimum font size deprecated on ios version 6.0&quot;. Does anyone know what this is referring to and how to fix it?

**Update:**
image is no more available (was at https://skitch.com/hahmadi82/eyk51/cloud)

Minimum Font Size deprecated on ios version 6.0

We&#39;re building an app for another company. They hold the signing key and would rather not share it with us. 

It should be possible to separate build and sign, but how do I specify it on xcodebuild&#39;s command line?


Building iOS applications using xcodebuild without codesign

I&#39;m trying to run this simple HelloWorld code written in Java from my browser ([Chrome][1]):

    public class HelloWorld extends JApplet {
    public void init() {
        try {
            SwingUtilities.invokeAndWait(new Runnable() {
                public void run() {
                    JLabel lbl = new JLabel(&quot;Hello World&quot;);
                    add(lbl);
                }
            });
        }
        catch (Exception e) {
            System.err.println(&quot;createGUI didn&#39;t complete successfully&quot;);
        }
    }

I compiled it with [NetBeans][2], and then I created a WebApplication project. The [HTML][3] code that runs the applet is:

    &lt;html&gt;
        &lt;head&gt;
            &lt;title&gt;&lt;/title&gt;
            &lt;meta http-equiv=&quot;Content-Type&quot; content=&quot;text/html; charset=UTF-8&quot;&gt;
        &lt;/head&gt;
        &lt;body&gt;
            &lt;p&gt;&lt;applet code=&quot;HelloWorld&quot; archive=&quot;applet_HelloWorld.jar&quot;  width=&quot;590&quot; height=&quot;530&quot;&gt;&lt;/applet&gt;&lt;/p&gt;
        &lt;/body&gt;
    &lt;/html&gt;

If run the applet from NetBeans it works. But when I run the HTML code by double clicking it, the following message pops up from the browser:

&gt; Your security settings have blocked a local application from running. 

I tried with Internet&amp;nbsp;Explorer and Firefox but nothing.

This message started to appear after the last update of Java. Where is the problem?

  [1]: http://en.wikipedia.org/wiki/Google_Chrome
  [2]: http://en.wikipedia.org/wiki/NetBeans
  [3]: http://en.wikipedia.org/wiki/HTML


Java Error: &quot;Your security settings have blocked a local application from running&quot;

As of Java 7u45 an applet will display a warning message (even if signed with a trusted cert) if a webpage tries to interact with it via javascript and that page isn&#39;t listed in the manifest&#39;s Caller-Allowable-Codebase attribute.

Release notes about this change: http://www.oracle.com/technetwork/java/javase/7u45-relnotes-2016950.html

Oracle blog post about this bug: https://blogs.oracle.com/java-platform-group/entry/7u45_caller_allowable_codebase_and

Attribute description: http://docs.oracle.com/javase/7/docs/technotes/guides/jweb/manifest.html#caller_allowable

I have tried just a wildcard (*), but I still get the warning.

Is there a way around this other than listing all codebases it may run at?

The reason this is a problem for me is that this applet runs on many different machines and networks, but always on intranets at various locations. This applet also needs to communicate with javascript because it talks to local USB scales and displays results and interacts with the page.

![Example of warning message][1]


  [1]: http://i.stack.imgur.com/QCQty.png

Applet in question: https://github.com/JaggedJax/CIO_Scale


Java applet manifest - Allow all Caller-Allowable-Codebase

When I was trying to self-sign in the jar like below.

    jarsigner -keystore my keystore myjar.jar myalias

It gives warning like:

&gt; No -tsa or -tsacert is provided and this jar is not timestamped. Without a timestamp, users may not be able to validate this jar after the signer certificate&#39;s expiration date (2014-05-08) or after any future revocation date.


Please help to resolve the problem.

-tsa or -tsacert timestamp for applet jar self-signed

Pictures:

![Command Prompt showing versions](http://i.imgur.com/J6SWWBb.png)
*Command Prompt showing versions*

![Picture of error](http://i.imgur.com/Xj8mCUp.png)
*Picture of error*

##Hello.java

    import java.applet.Applet;
    import java.awt.*;

    public class Hello extends Applet {

        // Java applet to draw &quot;Hello World&quot;
        public void paint (Graphics page) {
            page.drawString (&quot;Hello World!&quot;, 50, 50);
        }
    }

##Hello.html

&lt;!-- language: lang-html --&gt;

    &lt;HTML&gt;
        &lt;HEAD&gt;
            &lt;TITLE&gt;HelloWorld Applet&lt;/TITLE&gt;
        &lt;/HEAD&gt;

        &lt;BODY&gt;
            &lt;APPLET CODE=&quot;Hello.class&quot; WIDTH=300 HEIGHT=150&gt;
            &lt;/APPLET&gt;
        &lt;/BODY&gt;
    &lt;/HTML&gt;

##Error

    Hello : Unsupported major.minor version 52.0

What may the problem be?


Unsupported major.minor version 52.0

I can not launch my java application as a web applet in HTML (I am using HTML 4.01, I know it doesn&#39;t work in html5). The error message it returns is:

&gt; java : Unsupported major.minor version 52.0

I have tried downgrading my java JRE/JDK/SDK but I still get the same error message. The current version of java I am now using is 1.8.0_05.

Java unsupported major minor version 52.0

I was recently working on my application messing around in the info.plist section, and since that my application will not run on my test device:
&gt;file &#39;project.pch&#39; has been modified since the precompiled header was built
 
Something to note is that the app runs fine in the simulator.

---
Edit: Now I am getting this error instead of the other one:
&gt;No such file or directory (/Users/Me/Library/Developer/Xcode/DerivedData/MyProject-abcdefghijklmnopqrstuvwxyz/Build/Products/Debug-iphoneos/MyApp./MyApp)

![No such file or directory error][1]

How to regenerate the info.plist file?

  [1]: https://i.stack.imgur.com/8h09T.png

Fixing file &#39;project.pch&#39; has been modified since the precompiled header was built error in Xcode

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?

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

Content Type	Original Author	Original Content on Stackoverflow
Question	waylonion	View Question on Stackoverflow
Solution 1 - Ios	Michael Dautermann	View Answer on Stackoverflow

What is the meaning of the "Application Requires iPhone Environment" key in info.plist?

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Instagram API: How to get all user media?

How to convert items in array to a comma separated string in PHP?

Attributions