There is no impact at all. Apple engineers thinks that its not required to hide, or may be Plus phones will get landscape slide over in later iOS versions :)

*From the [documentation][1]:*

To opt out of being eligible to participate in Slide Over and Split View, add the `UIRequiresFullScreen` key to your Xcode project’s Info.plist file and apply the Boolean value YES.


  [1]: https://developer.apple.com/library/ios/documentation/WindowsViews/Conceptual/AdoptingMultitaskingOniPad/index.html

Normally, you would need to support both portrait and landscape orientation in your app.If your app is landscape only or portrait only, then the app validation fails with:

**warning: All interface orientations must be supported unless the app requires full screen.**

And as KingofBliss noted, setting this to YES will also stop your app from running in a split view.

It is a useful setting for games that run full screen in landscape only.

The function for freeing an instance of `struct Foo` is given below:	
    
    void DestroyFoo(Foo* foo)
	{
		if (foo) free(foo);
	}

A colleague of mine suggested the following instead:

	void DestroyFoo(Foo** foo)
	{
		if (!(*foo)) return;
		Foo *tmpFoo = *foo;
		*foo = NULL; // prevents future concurrency problems
		memset(tmpFoo, 0, sizeof(Foo));  // problems show up immediately if referred to free memory
		free(tmpFoo);
	}

I see that setting the pointer to `NULL` after freeing is better, but I&#39;m not sure about the following:

 1. Do we really need to assign the pointer to a temporary one? Does it help in terms of concurrency and shared memory?

 2. Is it really a good idea to set the whole block to 0 to force the program to crash or at least to output results with significant discrepancy?

Is this a good way to free memory?

I have a time with string type like: `&quot;2015-01-05 17:00&quot;` and `ZoneId` is `&quot;Australia/Sydney&quot;`.

How can I convert this time information to the corresponding to UTC time using Java 8 datetime API?

Also need to considering DST stuff.

Java 8 Convert given time and time zone to UTC time

For an iPad-only app or a universal app, the `&quot;Requires full screen&quot;` option tells Xcode/iOS whether the app supports iPad multitasking feature introduced in iOS 9.  But the `&quot;Requires full screen&quot;` option is also present if it&#39;s an iPhone-only app.  In this case, what is the impact of this option?

[![enter image description here][1]][1]


  [1]: http://i.stack.imgur.com/waYZq.png

What is the impact of the &quot;Requires full screen&quot; option in Xcode for an iPhone-only app?

<p>For an iPad-only app or a universal app, the <code>"Requires full screen"</code> option tells Xcode/iOS whether the app supports iPad multitasking feature introduced in iOS 9.  But the <code>"Requires full screen"</code> option is also present if it's an iPhone-only app.  In this case, what is the impact of this option?</p>
<p><a href="http://i.stack.imgur.com/waYZq.png" target="_blank" rel="noopener noreferrer"><img src="http://i.stack.imgur.com/waYZq.png" alt="enter image description here"></a></p>


In a Obj-C iOS app I can use `#if (TARGET_IPHONE_SIMULATOR)` to write simulator-only code.

In react native I can use:

    if (__DEV__) {
     .. do something special
    }

.. to detect development mode.  

We can use `Platform.OS === &#39;ios&#39;` to detect the platform (Android/iOS).
See here for more info [Platform Docs][1]

But how do we detect if the app is running in the simulator?

The reason I ask is that my app uses the camera to scan barcodes, and this isn&#39;t supported in the iOS Simulator.


  [1]: https://facebook.github.io/react-native/docs/platform-specific-code.html

React Native: How can I detect if my code is running in the Simulator?

I&#39;m working on a game for iOS coded in Swift. I&#39;ve tried to find a way to detect when the app enters background mode or is interrupted for other reasons, for example a phone call but can&#39;t find anything. How do I do it?

Detect iOS app entering background

No matter if modals are presented or the user performs any type of segue.

Is there a way to keep the button &quot;always on top&quot; (not the top of the screen) throughout the entire app?

Is there any way to make this button draggable and snappable to the screen?

I&#39;m looking at Apple&#39;s own Assistive Touch as an example of such button.

In iOS, how do I create a button that is always on top of all other view controllers?

I just checked my server logs and found the following weird requests coming in quite a lot. I have iOS 9 Universal Linking implemented, but those requests are running against /apple-app-site-association as far as I know.

    Jan 15 09:36:23 method=GET path=&quot;/.well-known/apple-app-site-association&quot;

Has anyone else seen these patterns? Is this some known spamming or something?


Requests to /.well-known/apple-app-site-association

I&#39;ve been doing some research about CoreLocation. Recently, I encountered a problem that has been covered elsewhere, but in Objective C, and for iOS 8.


I feel kinda silly asking this, but how can you check if location services are enabled using swift, on iOS 9?


On iOS 7 (and maybe 8?) you could use `locationServicesEnabled()`, but that doesn&#39;t appear to be working when compiling for iOS 9.

So how would I accomplish this?

Thanks!

Check if location services are enabled

2 days before I successfully uploaded the archive for my application and my application is on app store, but yesterday and today when I upload the archive I see &quot;Uploading the archive&quot; message (with subtitle &quot;Sending api usage to itunes connect&quot;) at the beggining, but then I see &quot;iTunes Store operation failed. This action couldn&#39;t be completed. Try again later&quot; :

[![enter image description here][1]][1]

When I try to upload the archive for another application, everything is OK, it&#39;s very strange, because since 2 days ago I only changed the minimum age in the application from 17 to 18 (so I didn&#39;t change everything important in the application settings).

May be in happen because we use iAd network and apple notified that this network will be unavailable since July ? 

[![enter image description here][2]][2]


  [1]: http://i.stack.imgur.com/0tdjj.png
  [2]: http://i.stack.imgur.com/Gz8ye.png

Can&#39;t upload archive to app store since yesterday

I come to React Native development without previous experience in iOS development. I want to build release. .ipa file - ideally from the command line but the official documentation [Running On Device][1] is very brief.

I was able to deploy applications on my iPhone manually via XCode but still, I can&#39;t find any &quot;release IPA&quot; file. I have updated my code with `#ifdef DEBUG` directives to make it more generic.

Is there a way to build an application in release mode only via the command-line? If no, what is &quot;the official&quot; way to generate an RN application?

I am currently using RN 0.20.


  [1]: https://facebook.github.io/react-native/docs/running-on-device-ios.html#content

How to build .ipa for React Native?

I know the title is not that explanatory but here is the story: I am developing a browser game, mostly using JavaScript and the Mapbox library.

Everything works well on desktop, Android and iOS but one problem appears on iOS: after letting the game run for a few minutes the phone suddenly begins to have graphic artifacts and display most of the text scrambled.

Here are some photos of what the phone begins too look like:
[![enter image description here][1]][1]
[![enter image description here][2]][2]
[![enter image description here][3]][3]

**My question** is: what exactly in my code can cause this? A memory leak? (**LE**: it turned out to actually be a memory leak)   
**The real question** is: How comes that you can almost brick the entire phone by simply browsing a web page? Shouldn&#39;t Safari stop this, or at least the iOS ?

This is not a problem with this specific device, as this problem can be reproduced on different iPhone devices. (I&#39;m not so sure about different iOS versions).

How I can **reproduce** the error:

 1. Open the game (inside Safari). 
 2. Let it run for 3-4 minutes. 
 3. Slide down the notification center and everything goes crazy.  
I have added a [YouTube video][4] showing how I can reproduce the error (on my iPhone 5C).  
It seems that the issue first appears in the notification center (if you swipe down the menu from the top).  
As for now, this problem seems to only occur on `iPhone 5C` iOS 9.2.1 (13D15). It also occurs on the new iOS 9.3 version.

In order to **fix** this issue I have to:

 1. Close the Safari application (in which the game tab is open).
 2. Lock the phone. After unlocking it everything is back to normal.

Some details about the **game** itself:

 1. The game shows a Mapbox map and some units over it (markers).
 2. A Node.js server runs at 1 tick/second and after each tick the updated game state is sent to the browser through Socket.io.
 3. Every time the browser receives the game state it updates the markers accordingly.
 3. *The game might also update markers if you zoom in or out or if you select them.

**EDIT2:**
Found the memory leak (as expected). After fixing this leak (check for `undefined` _icon) the issue no longer occurs. This means, that somewhere along those lines the Safari/iOS bug is triggered.

Here is what exactly was being called each tick, for each unit that was clustered (was hidden and grouped with others inside a MarkerCluster):
   

        var $icon = $(marker._icon); // marker._icon is undefined because of the clustering
    
        $icon.html(&#39;&#39;);
    
        $icon.append($(&#39;&lt;img class=&quot;markerIcon&quot; src=&quot;&#39; + options.iconUrl + &#39;&quot; /&gt;&#39;));
    
        var iconX = 10;
        var iconY = -10;
        var iconOffset = 0;

        for(var v in this.icons) {
            this.icons[v].css(&#39;z-index&#39;, + $icon.css(&#39;z-index&#39;) + 1);
            this.icons[v].css(&#39;transform&#39;, &#39;translate3d(&#39; + iconX + &#39;px,&#39; 
                                    + (iconY + iconOffset) + &#39;px,&#39; + &#39;0px)&#39;);
            iconOffset += 20;
    
            this.icons[v].appendTo($icon);
        }
    
        // Fire rate icons
        this.attackRateCircle = $(&#39;&lt;div class=&quot;circle&quot;&gt;&lt;/div&gt;&#39;);
        this.attackRateCircle.circleProgress({
            value: 0,
            size: 16,
            fill: { color: &quot;#b5deff&quot; },
            emptyFill: &#39;rgba(0, 0, 0, 0.5)&#39;,
            startAngle:  -Math.PI / 2,
            thickness: 4,
            animation: false,
        });
        this.attackRateCircle.hide();
    
        // Create and display the healthbar
        this.healthBar = $(&#39;&lt;div&gt;&#39;).addClass(&#39;healthBar &#39;);
        this.healthBar.css(&#39;z-index&#39;, $icon.css(&#39;z-index&#39;));
        this.healthBarFill = $(&#39;&lt;span class=&quot;fill&quot;&gt;&#39;);
        this.healthBar.append(this.healthBarFill);
    
        $icon.append(this.healthBar);
        $icon.append(this.attackRateCircle);

And this is the `icons` array:

    this.icons = {
        attack_order: $(&#39;&lt;img src=&quot;img/attack.png&quot; class=&quot;status_icon&quot;&gt;&#39;),
        attack: $(&#39;&lt;img src=&quot;img/damage.png&quot; class=&quot;status_icon icon_damage&quot;&gt;&#39;),
        hit: $(&#39;&lt;img src=&quot;img/hit.png&quot; class=&quot;status_icon icon_hit&quot;&gt;&#39;),
    };
`circleProgress` call is from this library: https://github.com/kottenator/jquery-circle-progress

**DEMO**
------
Yay, I have been able to create a jsFiddle that reproduces the bug: https://jsfiddle.net/cte55cz7/14/
Open on Safari on iPhone 5C and wait a couple of minutes. On iPhone 6 and iPad mini the page crashes (as expected due to the memory leak)

[Here&#39;s the same code in a HasteBin, for anyone who doesn&#39;t want to run it.](http://hastebin.com/uqapohesev.coffee)


  [1]: http://i.stack.imgur.com/oXX4k.jpg
  [2]: http://i.stack.imgur.com/J6Cij.jpg
  [3]: http://i.stack.imgur.com/Zw7ZC.jpg
  [4]: https://youtu.be/XYTB6AvTzKc

Why is a Safari page breaking iOS rendering?

When I added my latest build for internal testing with Test Flight, I saw that it had a &quot;Missing Compliance&quot; status.

Is this a major problem? Why does this appear? How can I resolve this issue?

[![Test flight status Missing Compliance][1]][1]

  [1]: http://i.stack.imgur.com/XBXUa.png

Missing Compliance status in Test Flight

I am trying to update Xcode from the command line.  Initially I tried running:

     xcode-select --install

which resulted in this message:

    xcode-select: error: command line tools are already installed, use &quot;Software Update&quot; to install updates

So the question remains, is there a way to update Xcode from the command line? 

How to update Xcode from command line

Lets say I have an existing project in Xcode, and for whatever reason, did not add Unit Tests or UI Tests. Can I add the test projects to the project later in Xcode 7?

Adding Unit and UI tests to an existing project in Xcode

I am deleting some folders and files to make more space on my drive. I know that in path:

    ~/Library/Developer/CoreSimulator/Devices/

There are folders for each simulator and each version. This folder has around 11GB size for me. I know that I could delete simulators with old versions that I no longer use. But from that unique identifier I can&#39;t know which is the right one and which not. So my question is: Can I delete it all? It&#39;s okay if next time I wouldn&#39;t have any of my app in simulator but  can I loose something more? Old versions of simulator? Or anything else? Thanks

Xcode - free to clear devices folder?

I&#39;m having xcode issues when I try to use brew and git:

&gt;xcrun: error: active developer path (&quot;/Applications/Xcode.app/Contents/Developer&quot;) does not exist, use `xcode-select --switch path/to/Xcode.app` to specify the Xcode that you wish to use for command line developer tools (or see `man xcode-select`)

I can type xcode-select and it shows that the command exists. When I type `xcode-select -p` it shows:
 
&gt;/Applications/Xcode.app/Contents/Developer

but when I do `which xcode-select`, it gives me:

&gt;/usr/bin/xcode-select

I&#39;ve tried to use the command switch and install again via Apple Developer site but none of these options have work so far... How can I fix this?

xcrun: error: active developer path (&quot;/Applications/Xcode.app/Contents/Developer&quot;) does not exist

This is a switch statement that I am getting errors on:

            switch (transaction.transactionState) {
                
            case SKPaymentTransactionStatePurchasing:
                
                // show wait view here
                statusLabel.text = @&quot;Processing...&quot;;
                break;
                
            case SKPaymentTransactionStatePurchased:
                
                [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
                
                // remove wait view and unlock iClooud Syncing
                statusLabel.text = @&quot;Done!&quot;;
                
                NSError *error = nil;
                [SFHFKeychainUtils storeUsername:@&quot;IAPNoob01&quot; andPassword:@&quot;whatever&quot; forServiceName: kStoredData updateExisting:YES error:&amp;error];
                
                // apply purchase action  - hide lock overlay and
                [oStockLock setBackgroundImage:nil forState:UIControlStateNormal];
                
                // do other thing to enable the features
                
                break;
                
            case SKPaymentTransactionStateRestored:
                
                [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

                // remove wait view here
                statusLabel.text = @&quot;&quot;;
                break;
                
            case SKPaymentTransactionStateFailed:
                
                if (transaction.error.code != SKErrorPaymentCancelled) {
                    NSLog(@&quot;Error payment cancelled&quot;);
                }
                [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
                // remove wait view here
                statusLabel.text = @&quot;Purchase Error!&quot;;
                break;
                
            default:
                break;
        }

The last two cases, plus the default, are giving me the following error:

&gt;  Cannot jump from switch statement to this case label

I have used the switch statement many, many times; this is the first time I have seen this.   The code has been copied from a tutorial ([here][1]), which I am trying to adapt for my app.  Would appreciate the help on this one.  SD


  [1]: http://xcodenoobies.blogspot.com/2012/04/implementing-inapp-purchase-in-xcode.html

What is causing this: Cannot jump from switch statement to this case label

I have started working with `OCMock` to write test cases for the existing project that I have integrated in my project workspace. After following all the steps mentioned in this [link][1].

When I first executed my test case it&#39;s giving the error above. I searched it and tried following some of the solutions like *creating new target*, *restarting Xcode* but it didn&#39;t help me out. Any idea?

[1]: http://ocmock.org/ios/


Test target X encountered an error (Early unexpected exit, operation never finished bootstrapping - no restart will be attempted

I want to extract the dSYM file from but when I click on _&quot;Download dSYMs...&quot;_ in the _Organizer_ I get the follow message: &quot;There are no dSYMs available for download.&quot;. 

I&#39;m using Xcode 7.2 with a workspace generated by Cocoapods 0.39. 

How can I get them?

[![enter image description here][1]][1]


  [1]: http://i.stack.imgur.com/bSdOQ.png

Xcode - There are no dSYMs available for download

Alright so I just update Xcode to 7.3 and now I get this warning:

&gt;&#39;var&#39; parameters are deprecated and will be removed in Swift 3

How to fix this when I need to use the var in this function:

    public func getQuestionList(var language: String) -&gt; NSArray {
        if self.data.count &gt; 0 {
            if (language.isEmpty) {
                language = &quot;NL&quot;
            }
            return self.data.objectForKey(&quot;questionList&quot; + language) as! NSArray
        }
        
        return NSArray()
    }

&#39;var&#39; parameters are deprecated and will be removed in Swift 3

I use CocoaPods to manage dependencies in my project. I&#39;ve written Podfile: 

    target &#39;MyApp&#39; do
      platform :ios, &#39;8.0&#39;
      # Uncomment this line if you&#39;re using Swift or would like to use dynamic frameworks
      #use_frameworks!
    
      # Pods for MyApp
      pod &#39;KeepLayout&#39;, :git =&gt; &#39;https://github.com/iMartinKiss/KeepLayout&#39;, :tag =&gt; &#39;v1.6.0&#39;
      pod &#39;EasyMapping&#39;
    
      target &#39;MyAppTests&#39; do
        inherit! :search_paths
        # Pods for testing
      end
    
      target &#39;MyAppUITests&#39; do
        inherit! :search_paths
        # Pods for testing
      end
    
    end

This file works well with CocoaPods 0.x but I can&#39;t compile project after I&#39;ve updated to CocoaPods 1.0. After I&#39;ve run 

    pod update 

I can&#39;t compile my project with error:

&gt; /Users/&lt;...&gt;/Pods/KeepLayout/Sources/KeepAttribute.m:195:1: Cannot synthesize weak property because the current deployment target does not support weak references

I&#39;ve seen that every library is builded with different deployment target. For example KeepLayout is builded with 4.3 deployment target.

How I can determine build target for every pod dependency? 

Set deployment target for CocoaPods&#39;s pod

Before I start writing about the error, I&#39;m running on macOS Sierra and using Xcode 7.3.1.

So I&#39;m creating an Archive from my App, I validate the App and it passes validation, but when uploading to App Store, I get the error &quot;ERROR ITMS - 90167 No. app bundles found in the package&quot;.

[![][1]][1]

I&#39;ve checked all my documentation and I have everything.

- I have all my provisioning profiles.
- I have Release as &quot;iOS Distribution&quot;.

This error just started appearing after I installed macOS Sierra.

Anyone has an idea of why I&#39;m getting this error?


  [1]: http://i.stack.imgur.com/laSgE.png

Content Type	Original Author	Original Content on Stackoverflow
Question	goodbyeera	View Question on Stackoverflow
Solution 1 - Ios	KingofBliss	View Answer on Stackoverflow
Solution 2 - Ios	Bram	View Answer on Stackoverflow

What is the impact of the "Requires full screen" option in Xcode for an iPhone-only app?

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Java 8 Convert given time and time zone to UTC time

Is this a good way to free memory?

Attributions