You can disable that output with a environment variable.

In Product&gt;&gt;Scheme&gt;&gt;Edit Scheme...&gt;&gt;Run add the following environment variable: Name:`OS_ACTIVITY_MODE`, Value: `disable`

Originally described on Twitter [here][1].

[![enter image description here][2]][2]


  [1]: https://twitter.com/rustyshelf/status/775505191160328194
  [2]: http://i.stack.imgur.com/nng7x.jpg

It seems this information is not garbage and can help with the variables view when checking system framework calls. However, this seems more related to debugging for the engineers at Apple and seems to have been logged as an xcode 8 issue. No idea when this will be resolved.

I also checked (started) the key binding with a &quot;show&quot; and &quot;display&quot; filters but none are relative to this. Below is apple&#39;s note:

• Xcode Debug Console shows extra logging from system frameworks when debugging applications in the Simulator. (27331147, 26652255).

I&#39;m using npm to manage the jQuery, Bootstrap, Font Awesome and similar client libraries I need for my ASP.NET Core application.

The approach that worked for me started by adding a package.json file to the project, that looks like this:

    {
    	&quot;version&quot;: &quot;1.0.0&quot;,
    	&quot;name&quot;: &quot;myapp&quot;,
    	&quot;private&quot;: true,
        &quot;devDependencies&quot;: {
      },
      &quot;dependencies&quot;: {
        &quot;bootstrap&quot;: &quot;^3.3.6&quot;,
        &quot;font-awesome&quot;: &quot;^4.6.1&quot;,
        &quot;jquery&quot;: &quot;^2.2.3&quot;
      }
    }

npm restores these packages into the node_modules folder which is on the same level as wwwroot in the project directory:

[![enter image description here][2]][2]

As ASP.NET Core serves the static files from the wwwroot folder, and node_modules is not there, I had to make a couple of changes to make this work, the first one: adding app.UseFileServer right before app.UseStaticFiles in my Startup.cs file:

    app.UseFileServer(new FileServerOptions()
    {
        FileProvider = new PhysicalFileProvider(
            Path.Combine(Directory.GetCurrentDirectory(), @&quot;node_modules&quot;)), 
        RequestPath = new PathString(&quot;/node_modules&quot;),
        EnableDirectoryBrowsing = true
    });
    
    app.UseStaticFiles();

and the second one, including node_modules in my publishOptions in the project.json file:

    &quot;publishOptions&quot;: {
      &quot;include&quot;: [
        &quot;web.config&quot;,
        &quot;wwwroot&quot;,
        &quot;Views&quot;,
        &quot;node_modules&quot;
      ]
    },

This works in my development environment and it also works when I deploy it to my Azure App Service instance, the jquery, bootstrap and font-awesome static files get served well, but I&#39;m not sure about this implementation.

What is the right approach for doing this?

This solution came after collecting lots of bits of info from several sources and trying some that didn&#39;t work, and it seems a bit odd having to serve these files from outside wwwroot.

Any advice will be greatly appreciated.

  [2]: http://i.stack.imgur.com/5Xlw7.png

How to use npm with ASP.NET Core

I&#39;m trying to find the best way to do a &#39;reverse lookup&#39; on an enum in Kotlin. One of my takeaways from Effective Java was that you introduce a static map inside the enum to handle the reverse lookup. Porting this over to Kotlin with a simple enum leads me to code that looks like this:

    enum class Type(val value: Int) {
        A(1),
        B(2),
        C(3);
    
        companion object {
            val map: MutableMap&lt;Int, Type&gt; = HashMap()
    
            init {
                for (i in Type.values()) {
                    map[i.value] = i
                } 
            }
    
            fun fromInt(type: Int?): Type? {
                return map[type]
            }
        }
    }

My question is, is this the best way to do this, or is there a better way? What if I have several enums that follow a similar pattern? Is there a way in Kotlin to make this code more re-usable across enums?

Effective Enums in Kotlin with reverse lookup?

Has anybody else had issues with the Xcode 8 console showing a bunch of random stuff?  I don&#39;t want to have all of this cluttering my debug messages and logs.  Does anybody know how to turn this off?  

EDIT: The release notes specify that the console might dump unhelpful stuff for watchOS, but not for iOS.  

Example: [![example of garbage in console][1]][1]


  [1]: http://i.stack.imgur.com/UrVG9.png

Xcode 8 Console Garbage?

Has anybody else had issues with the Xcode 8 console showing a bunch of random stuff? I don't want to have all of this cluttering my debug messages and logs. Does anybody know how to turn this off?
EDIT: The release notes specify that the console might dump unhelpful stuff for watchOS, but not for iOS.
Example: <a href="http://i.stack.imgur.com/UrVG9.png" target="_blank" rel="noopener noreferrer"><img src="http://i.stack.imgur.com/UrVG9.png" alt="example of garbage in console"></a>

I want to use Xcode 7 with iOS 10.

As I understand, working with iOS 10 beta requires Xcode 8 beta, so I should upgrade my Xcode. However, my code can&#39;t be built by the new compiler, so I want to stay with Xcode 7.

How can I achieve that?

Use Xcode 7 with iOS 10

I am following an online tutorial from team tree house and one of the steps is to create an NSManagedObject subclass for my data model. 

When I did that the code automatically generated a class and set of macros at the beginning and and the end:

**NS_ASSUME_NONNULL_BEGIN**

**NS_ASSUME_NONNULL_END**

I was searching online but I could not find any documentation about what these guys are doing here. By the way they were defined in the header **NSObjCRuntime.h**

Any ideas what purpose they serve?


NS_ASSUME_NONNULL_BEGIN Macro

I&#39;m trying to get my app working in **Xcode 8.0**, and am running into an error. I know this code worked fine in previous versions of swift, but I&#39;m assuming the code for this is changed in the new version. Here&#39;s the code I&#39;m trying to run:

    let settings = UIUserNotificationSettings(forTypes: [.Sound, .Alert, .Badge], categories: nil)     
    UIApplication.sharedApplication().registerUserNotificationSettings(settings)
    UIApplication.shared().registerForRemoteNotifications()

The error that I&#39;m getting is &quot;Argument labels &#39;(forTypes:, categories:)&#39; do not match any available overloads&quot;

Is there a different command that I could try to get this working?

Registering for Push Notifications in Xcode 8/Swift 3.0?

Can anyone tell me how I can mimic the bottom sheet in the new Apple Maps app in iOS 10? 

In Android, you can use a `BottomSheet` which mimics this behaviour, but I could not find anything like that for iOS. 

Is that a simple scroll view with a content inset, so that the search bar is at the bottom? 

I am fairly new to iOS programming so if someone could help me creating this layout, that would be highly appreciated.

This is what I mean by &quot;bottom sheet&quot;:

[![screenshot of the collapsed bottom sheet in Maps][1m]][1] [![screenshot of the expanded bottom sheet in Maps][2m]][2]


  [1]: http://i.stack.imgur.com/doVzS.jpg
  [1m]: http://i.stack.imgur.com/doVzSm.jpg
  [2]: http://i.stack.imgur.com/l9Bgz.jpg
  [2m]: http://i.stack.imgur.com/l9Bgzm.jpg

How can I mimic the bottom sheet from the Maps app?

I converted an NSIndexSet to an [Int] array using the answer at https://stackoverflow.com/a/28964059/6481734 I need to do essentially the opposite, turning the same kind of array back into an NSIndexSet.

Create NSIndexSet from integer array in Swift

Every time I re-open the Project Navigator tab in the left side of Xcode (I.E move away from it into another tab and come back to it), my folders and subfolders all &quot;magically&quot; expand on their own. I can&#39;t seem to figure out what the problem is. It&#39;s getting really frustrating collapsing them on my own every time (even with the option-*Arrow Key* short cut).


Has anyone else experienced this?

Xcode Folders Auto-Expanding When Clicking &quot;Project Navigator&quot;

I have this in Playground using Swift 3, Xcode 8.0:

    import Foundation
    class Person: NSObject, NSCoding {
        var name: String
        var age: Int
        init(name: String, age: Int) {
            self.name = name
            self.age = age
        }
        required convenience init(coder aDecoder: NSCoder) {
            let name = aDecoder.decodeObject(forKey: &quot;name&quot;) as! String
            let age = aDecoder.decodeObject(forKey: &quot;age&quot;) as! Int
            self.init(
                name: name,
                age: age
            )
        }
        func encode(with aCoder: NSCoder) {
            aCoder.encode(name, forKey: &quot;name&quot;)
            aCoder.encode(age, forKey: &quot;age&quot;)
        }
    }

***
    
create array of Person

    let newPerson = Person(name: &quot;Joe&quot;, age: 10)
    var people = [Person]()
    people.append(newPerson)

***    
encode the array

    let encodedData = NSKeyedArchiver.archivedData(withRootObject: people)
    print(&quot;encodedData: \(encodedData))&quot;)

***    
save to userDefaults

    let userDefaults: UserDefaults = UserDefaults.standard()
    userDefaults.set(encodedData, forKey: &quot;people&quot;)
    userDefaults.synchronize()

***    
check

    print(&quot;saved object: \(userDefaults.object(forKey: &quot;people&quot;))&quot;)
    
***
retreive from userDefaults

    if let data = userDefaults.object(forKey: &quot;people&quot;) {
        let myPeopleList = NSKeyedUnarchiver.unarchiveObject(with: data as! Data)
        print(&quot;myPeopleList: \(myPeopleList)&quot;)
    }else{
        print(&quot;There is an issue&quot;)
    }

***    
just check the archived data

    if let myPeopleList = NSKeyedUnarchiver.unarchiveObject(with: encodedData){
       print(&quot;myPeopleList: \(myPeopleList)&quot;)
    }else{
       print(&quot;There is an issue&quot;)
    }

I&#39;m not able to correctly save the data object to userDefaults, and in addition, the check at the bottom creates the error:

  &gt; Fatal error: Unexpectedly found nil while unwrapping an Optional value

The &quot;check&quot; line also shows the saved object is nil. Is this an error in my object&#39;s NSCoder?

Swift saving and retrieving custom object from UserDefaults

I&#39;m currently developing an iOS application for a client. The submission review process to the store can often be a lengthy process and is relatively new to me. 

My client wants to do a beta test using **TestFlight** as well as submitting the app to the app store afterwards, through **XCode** and **Itunes Connect**.


Scouring Apple&#39;s documentation I can&#39;t seem to get a good idea of following:


- **If I want to update an existing application on the store do I have to go through the review process again in full?**&lt;br&gt;&lt;br&gt;

- **If I have my app approved for beta testing release through TestFlight, is this taken into consideration when submitting the app for review to the store?**&lt;br&gt;&lt;br&gt;

- **If I want to test a new build through TestFlight, do I need to go through the beta review process again in full?**&lt;br&gt;&lt;br&gt;

- **If an app is approved on the app store, does it automatically pass the beta review?**&lt;br&gt; 
(This sounds counterintuitive considering you don&#39;t want to do a beta test after releasing to the store but in a scenario where you may want to do a closed release of an update for testing while a live version is up on the store)


iOS app submission and beta review process

After converting code to latest swift 3.0 I am shown this error.

[![enter image description here][1]][1][![enter image description here][2]][2]

Also tell me solution for `CGSize = CGSizeMake(0,0)` 

    static var frameAtStartOfPan: CGRect = CGRectZero
    static var startPointOfPan: CGPoint = CGPointZero

Which is also unavailable.


  [1]: http://i.stack.imgur.com/yvqDR.png
  [2]: http://i.stack.imgur.com/IsyeI.png


CGRectMake, CGPointMake, CGSizeMake, CGRectZero, CGPointZero is unavailable in Swift

The projects page seems to be disappeared from Xcode 8. I used this page for deleting the derived data.

Any idea how can I delete derived data from within Xcode 8?

How can I delete derived data in Xcode 8?

Among the new features announced in [Xcode 8][1], we can see 

&quot;Auto-generate Quick Help documentation&quot; : 

[![enter image description here][2]][2]

Is this the end of manual code documentation like we [can learn on this article from NSHipster][3] ?

Can someone outline the pros and cons of this new feature ? [Does it replace tools like Jazzy][4] ?

I couldn&#39;t find more information about the new feature.

  [1]: https://developer.apple.com/xcode/
  [2]: http://i.stack.imgur.com/SEVhe.png
  [3]: http://nshipster.com/swift-documentation/
  [4]: https://github.com/realm/jazzy

Xcode 8 auto-generated quick help documentation

I have an Objective-C project in Xcode 8 Beta 3. Since updating, whenever I try to build I receive the following error:

&gt;“Use Legacy Swift Language Version” (SWIFT_VERSION) is required to be configured correctly for targets which use Swift. Use the [Edit &gt; Convert &gt; To Current Swift Syntax…] menu to choose a Swift version or use the Build Settings editor to configure the build setting directly.

Has anyone encountered this? Since it&#39;s an Objective-C project there&#39;s no build setting to configure Swift. I have also made sure none of the project dependencies or CocoaPods are using Swift. The only solution I have is to use Beta 2. Any ideas how I might fix this issue?

I should also mention I&#39;m running OSX 10.12 Beta 2.

Xcode 8 Beta 3 Use Legacy Swift issue

**Update**: This issue has been fixed in Xcode 8.2. Keychain works in the simulator without enabling keychain sharing.

Why am I *always* receiving error -34018 when calling `SecItemAdd` function *in Xcode 8 / iOS 10 simulator*?

## Steps to Reproduce

Create a new Single page iOS app project in Xcode 8.
Run the following code in `viewDidLoad` (or open [this][1] Xcode project).


    let itemKey = &quot;My key&quot;
    let itemValue = &quot;My secretive bee &#128029;&quot;
    
    // Remove from Keychain
    // ----------------
    
    let queryDelete: [String: AnyObject] = [
      kSecClass as String: kSecClassGenericPassword,
      kSecAttrAccount as String: itemKey as AnyObject
    ]
    
    let resultCodeDelete = SecItemDelete(queryDelete as CFDictionary)
    
    if resultCodeDelete != noErr {
      print(&quot;Error deleting from Keychain: \(resultCodeDelete)&quot;)
    }
    
    
    // Add to keychain
    // ----------------
    
    guard let valueData = itemValue.data(using: String.Encoding.utf8) else {
      print(&quot;&#128035;&#128035;&#128035;&#128035;&#128035;&#128035;&#128035;&#128035;&#128035;&#128035; Error saving text to Keychain&quot;)
      return
    }
    
    let queryAdd: [String: AnyObject] = [
      kSecClass as String: kSecClassGenericPassword,
      kSecAttrAccount as String: itemKey as AnyObject,
      kSecValueData as String: valueData as AnyObject,
      kSecAttrAccessible as String: kSecAttrAccessibleWhenUnlocked
    ]
    
    let resultCode = SecItemAdd(queryAdd as CFDictionary, nil)
    
    if resultCode != noErr {
      print(&quot;&#128029;&#128029;&#128029;&#128029;&#128029;&#128029;&#128029;&#128029;&#128029; Error saving to Keychain: \(resultCode).&quot;)
    } else {
      print(&quot;&#127808;&#127808;&#127808;&#127808;&#127808;&#127808;&#127808;&#127808;&#127808; Saved to keychain successfully.&quot;)
    }


## Expected Results


Item is added to Keychain.


## Actual Results

Function SecItemAdd returns the following error code: `-34018`.



## Version

Xcode version 8.1 (8B62), macOS Sierra 10.12.1.

## Configuration

Always occurs in Xcode 8 since Beta 2 when testing in an iOS 10 simulator.

Does NOT occur in Xcode 8 when testing in an iOS 9.3 simulator.


## Demo

https://dl.dropboxusercontent.com/u/11143285/2016/07/KeychainBugDemo.zip


## References

Radar: https://openradar.appspot.com/27422249

Apple Developer Forums: https://forums.developer.apple.com/message/179846

This issue is different from the following post because it occurs **consistently** in Xcode 8. https://stackoverflow.com/questions/20344255/secitemadd-and-secitemcopymatching-returns-error-code-34018-errsecmissingentit


  [1]: https://dl.dropboxusercontent.com/u/11143285/2016/07/KeychainBugDemo.zip

Content Type	Original Author	Original Content on Stackoverflow
Question	ellman121	View Question on Stackoverflow
Solution 1 - Ios	melbic	View Answer on Stackoverflow
Solution 2 - Ios	triple7	View Answer on Stackoverflow

Xcode 8 Console Garbage?

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Effective Enums in Kotlin with reverse lookup?

How to use npm with ASP.NET Core

Attributions