**Link binary with libraries**
Link frameworks and libraries with your project’s object files to produce a binary file. You can link a target’s source files against libraries in the target’s active SDK or against external libraries.

**Embed Frameworks**
You can create an embedded framework to share code between your app extension and its containing app.

-

**Timeline** *(Look at this sentence)*
- &quot;If your containing app target **links** to an **embedded framework**, it must include the arm64 architecture or it will be rejected by the App Store.&quot;

I have been looking at some answers here and there and would like to amend this learning if somebody comes across this question again.

In any case, if we want to use any of a frameworks resources (i.e. the API), we need to link to it. In that case we need to add it in the &quot;Linked Frameworks and Libraries&quot; section in the bottom of the General Target Settings.

If we embed a library we are shipping the library – as it is – with our app bundle. This could be handy e.g. on machines running macOS who certainly do not have a specific 3rd party library.

So, what about iOS? There is no possibility to install 3rd party libraries on an iOS device per se – plus Apple is very strict regarding fat frameworks (libraries built for multiple platforms). So there has to be a way for the libraries to be delivered anyway? Since just linking them is not enough for the user of our application what other possibilities do we have?

That&#39;s where a peculiar build phase comes into play. In the project settings under Build Phases there&#39;s the link binary with libraries section. This steps strips the unnecessary parts from the fat frameworks and leaves the necessary parts with the bundle so that it is able to run on a device that is agnostic about the app&#39;s dependencies.

For an **app** target

Xcode 11
- `Static Library`
- `Static Framework` - `Do Not Embed`
- `Dynamic Framework` - `Embed`

Pre Xcode 11

- `Static Library` - `Link`
- `Static Framework` - `Link`
- `Dynamic Framework` - `Embed`

How it works [[Xcode v11]][1] and [[pre Xcode v11]][2]

  [1]: https://stackoverflow.com/a/63269154/4770877
  [2]: https://stackoverflow.com/a/59216858/4770877

In my trying `AsyncTask` I get email address from my server. In `onPostExecute()` I have to check is email address `empty` or `null`. I used following code to check it:

    if (userEmail != null &amp;&amp; !userEmail.isEmpty()) {
	    Toast.makeText(getActivity(), userEmail, Toast.LENGTH_LONG).show();
		UserEmailLabel.setText(userEmail);
    }

But in my `Toast` I see `null` is printed. My full code:

    private class LoadPersonalData extends AsyncTask&lt;String, Void, Void&gt; {
		@Override
		protected void onPreExecute() {
			super.onPreExecute();
		}

		protected Void doInBackground(String... res) {
			List&lt;NameValuePair&gt; params = new ArrayList&lt;NameValuePair&gt;();
			params.add(new BasicNameValuePair(&quot;user_id&quot;, PrefUserName));
			params.add(new BasicNameValuePair(&quot;type&quot;, type_data));
			JSONObject json = jsonParser.makeHttpRequest(Url, &quot;POST&quot;, params);
			String result = &quot;&quot;;
			try {
				result = json.getString(&quot;message&quot;);
			} catch (JSONException e) {
				e.printStackTrace();
			}
			if (result.equals(&quot;success&quot;)) {
				try {
					userEmail = json.getString(&quot;email&quot;);
				} catch (JSONException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
			return null;
		}

		@Override
		protected void onPostExecute(Void result) {
			// TODO Auto-generated method stub
			super.onPostExecute(result);			
			if (userEmail != null &amp;&amp; !userEmail.isEmpty()) {
				Toast.makeText(getActivity(), userEmail, Toast.LENGTH_LONG).show();
				UserEmailLabel.setText(userEmail);
			}
		}

How can I check for `null` and `empty` string? 

Android check null or empty string in Android

Can somebody give me a hint on how to use the `maven-publish` Gradle plugin to publish a `com.android.library` project/module with AAR and source jar? I am able to do this with the old `maven` plugin - but I would like to use the new `maven-publish` plugin.


Publish an Android library to Maven with AAR and sources JAR

What&#39;s the difference in the build phases between putting a framework in &quot;Link binary with libraries&quot; or in &quot;Embed frameworks&quot;?

Link Binary with libraries VS Embed Frameworks

<p>What's the difference in the build phases between putting a framework in "Link binary with libraries" or in "Embed frameworks"?</p>


I&#39;m trying to set UIImageView programmatically in Xcode 6.1:

    @IBOutlet weak var bgImage: UIImageView!
    
    var image : UIImage = UIImage(named:&quot;afternoon&quot;)!
    bgImage = UIImageView(image: image)
    bgImage.frame = CGRect(x: 0, y: 0, width: 100, height: 200)
    view.addSubview(bgImage)

But Xcode is saying &quot;expected declaration&quot; with `bgImage = UIImageView(image: image)`  Image `&quot;afternoon&quot;`is a PNG, and my understanding is PNG does not need an extension in XCode 6.1.

Also tried just `bgImage.image = UIImage(named: &quot;afternoon&quot;)`, but still get:

![enter image description here][1]

  [1]: https://i.stack.imgur.com/zslbH.jpg

**UPDATE**

OK, I have put the code to update `UIImageView` into the `viewDidLoad` function, but `UIImageView` is still not showing the image (which exists in the base directory as afternoon.png):

    @IBOutlet weak var bgImage: UIImageView!
    @IBOutlet weak var dateLabel: UILabel!
    @IBOutlet weak var timeLabel: UILabel!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        updateTime()
        var timer = NSTimer()
        let aSelector : Selector = &quot;updateTime&quot;
        timer = NSTimer.scheduledTimerWithTimeInterval(0.01, target: self, selector: aSelector, userInfo: nil, repeats: true)
        
        var image : UIImage = UIImage(named:&quot;afternoon&quot;)!
        bgImage = UIImageView(image: image)
    }



Programmatically set image to UIImageView with Xcode 6.1/Swift

I know default values of IBInspectable-properties can be set as:

`@IBInspectable var propertyName:propertyType = defaultValue` in Swift. But how do I achieve a similar effect in Objective-C so that I can have default value of some property set to something in Interface Builder?

How to set default values for IBInspectable in Objective-C?

Does anyone know of a way to get a users time zone in Swift? 

I&#39;m getting a specific time something is on t.v. out of a database and then need to subtract/add from where they are located to show them the correct time it&#39;s on.


How to get a user&#39;s time zone?

I have a Swift app using SceneKit for iOS 8. I load a scene from a .dae file that contains a mesh controlled by a skeleton.
At runtime, I need to modify the texture coordinates. Using a transform is not an option -- I need to compute a different, completely new UV for each vertex in the mesh.

I know geometry is immutable in SceneKit, and I&#39;ve read that the suggested approach is to make a copy manually. I&#39;m trying to do that, but I always end up crashing when trying to re-create the `SCNSkinner` in code. The crash is an `EXC_BAD_ACCESS` inside `C3DSourceAccessorGetMutableValuePtrAtIndex`. Unfortunately, there is no source code for this, so I&#39;m not sure why exactly it&#39;s crashing. I&#39;ve narrowed it down to the `SCNSkinner` object attached to the mesh node. If I do not set that, I don&#39;t get a crash and things appear to be working.

**EDIT:** Here is a more complete call stack of the crash:

    C3DSourceAccessorGetMutableValuePtrAtIndex
    C3DSkinPrepareMeshForGPUIfNeeded
    C3DSkinnerMakeCurrentMesh
    C3DSkinnerUpdateCurrentMesh
    __CFSetApplyFunction_block_invoke
    CFBasicHashApply
    CFSetApplyFunction
    C3DAppleEngineRenderScene
    ...
    
I&#39;ve not found any documentation or example code about how to create an `SCNSkinner` object manually. Since I&#39;m just creating it based on a previously working mesh, it shouldn&#39;t be too difficult. I&#39;m creating the `SCNSkinner` according to the Swift documentation, passing all of the correct things into the init. However, there is a skeleton property in the `SCNSkinner` that I&#39;m not sure how to set. I set it to the skeleton that was on the original `SCNSkinner` of the mesh I&#39;m copying, which I think
should work... but it doesn&#39;t. When setting the skeleton property, it does not appear to be assigning. Checking it immediately after the assignment shows that it is still nil. As a test, I tried to set the original mesh&#39;s skeleton property to something else, and after the assignment it was left untouched as well.

Can anyone shed any light on what is happening? Or how to correctly create and set up an `SCNSkinner` object manually?

Here is the code I&#39;m using to manually clone a mesh and replace it with a new one (I have not modified any of the source data here -- I&#39;m simply trying to make sure I can create a copy at this point):

    // This is at the start of the app, just so you can see how the scene is set up.
    // I add the .dae contents into its own node in the scene. This seems to be the
    // standard way to put multiple .dae models into the same scene. This doesn&#39;t seem to
    // have any impact on the problem I&#39;m having -- I&#39;ve tried without this indirection
    // and the same problem exists.
    let scene = SCNScene()
            
    let modelNode = SCNNode()
    modelNode.name = &quot;ModelNode&quot;
            
    scene.rootNode.addChildNode(modelNode)
    
    let modelScene = SCNScene(named: &quot;model.dae&quot;)
            
    if modelScene != nil {
        if let childNodes = modelScene?.rootNode.childNodes {
            for childNode in childNodes {
                modelNode.addChildNode(childNode as SCNNode)
            }
        }
    }
    
    
    // This happens later in the app after a tap from the user.
    
    let modelNode = scnView.scene!.rootNode.childNodeWithName(&quot;ModelNode&quot;, recursively: true)
            
    let modelMesh = modelNode?.childNodeWithName(&quot;MeshName&quot;, recursively: true)
            
    let verts = modelMesh?.geometry!.geometrySourcesForSemantic(SCNGeometrySourceSemanticVertex)
    let normals = modelMesh?.geometry!.geometrySourcesForSemantic(SCNGeometrySourceSemanticNormal)
    let texcoords = modelMesh?.geometry!.geometrySourcesForSemantic(SCNGeometrySourceSemanticTexcoord)
    let boneWeights = modelMesh?.geometry!.geometrySourcesForSemantic(SCNGeometrySourceSemanticBoneWeights)
    let boneIndices = modelMesh?.geometry!.geometrySourcesForSemantic(SCNGeometrySourceSemanticBoneIndices)
    let geometry = modelMesh?.geometry!.geometryElementAtIndex(0)
    
    // Note: the vertex and normal data is shared.
    let vertsData = NSData(data: verts![0].data)
    let texcoordsData = NSData(data: texcoords![0].data)
    let boneWeightsData = NSData(data: boneWeights![0].data)
    let boneIndicesData = NSData(data: boneIndices![0].data)
    let geometryData = NSData(data: geometry!.data!)
    
    let newVerts = SCNGeometrySource(data: vertsData, semantic: SCNGeometrySourceSemanticVertex, vectorCount: verts![0].vectorCount, floatComponents: verts![0].floatComponents, componentsPerVector: verts![0].componentsPerVector, bytesPerComponent: verts![0].bytesPerComponent, dataOffset: verts![0].dataOffset, dataStride: verts![0].dataStride)
            
    let newNormals = SCNGeometrySource(data: vertsData, semantic: SCNGeometrySourceSemanticNormal, vectorCount: normals![0].vectorCount, floatComponents: normals![0].floatComponents, componentsPerVector: normals![0].componentsPerVector, bytesPerComponent: normals![0].bytesPerComponent, dataOffset: normals![0].dataOffset, dataStride: normals![0].dataStride)
            
    let newTexcoords = SCNGeometrySource(data: texcoordsData, semantic: SCNGeometrySourceSemanticTexcoord, vectorCount: texcoords![0].vectorCount, floatComponents: texcoords![0].floatComponents, componentsPerVector: texcoords![0].componentsPerVector, bytesPerComponent: texcoords![0].bytesPerComponent, dataOffset: texcoords![0].dataOffset, dataStride: texcoords![0].dataStride)
            
    let newBoneWeights = SCNGeometrySource(data: boneWeightsData, semantic: SCNGeometrySourceSemanticBoneWeights, vectorCount: boneWeights![0].vectorCount, floatComponents: boneWeights![0].floatComponents, componentsPerVector: boneWeights![0].componentsPerVector, bytesPerComponent: boneWeights![0].bytesPerComponent, dataOffset: boneWeights![0].dataOffset, dataStride: boneWeights![0].dataStride)
            
    let newBoneIndices = SCNGeometrySource(data: boneIndicesData, semantic: SCNGeometrySourceSemanticBoneIndices, vectorCount: boneIndices![0].vectorCount, floatComponents: boneIndices![0].floatComponents, componentsPerVector: boneIndices![0].componentsPerVector, bytesPerComponent: boneIndices![0].bytesPerComponent, dataOffset: boneIndices![0].dataOffset, dataStride: boneIndices![0].dataStride)
            
    let newGeometry = SCNGeometryElement(data: geometryData, primitiveType: geometry!.primitiveType, primitiveCount: geometry!.primitiveCount, bytesPerIndex: geometry!.bytesPerIndex)
            
    let newMeshGeometry = SCNGeometry(sources: [newVerts, newNormals, newTexcoords, newBoneWeights, newBoneIndices], elements: [newGeometry])
            
    newMeshGeometry.firstMaterial = modelMesh?.geometry!.firstMaterial
            
    let newModelMesh = SCNNode(geometry: newMeshGeometry)
            
    let bones = modelMesh?.skinner?.bones
    let boneInverseBindTransforms = modelMesh?.skinner?.boneInverseBindTransforms
    let skeleton = modelMesh!.skinner!.skeleton!
    let baseGeometryBindTransform = modelMesh!.skinner!.baseGeometryBindTransform
            
    newModelMesh.skinner = SCNSkinner(baseGeometry: newMeshGeometry, bones: bones, boneInverseBindTransforms: boneInverseBindTransforms, boneWeights: newBoneWeights, boneIndices: newBoneIndices)
            
    newModelMesh.skinner?.baseGeometryBindTransform = baseGeometryBindTransform
            
    // Before this assignment, newModelMesh.skinner?.skeleton is nil.
    newModelMesh.skinner?.skeleton = skeleton
    // After, it is still nil... however, skeleton itself is completely valid.
    
    modelMesh?.removeFromParentNode()
            
    newModelMesh.name = &quot;MeshName&quot;
            
    let meshParentNode = modelNode?.childNodeWithName(&quot;MeshParentNode&quot;, recursively: true)
            
    meshParentNode?.addChildNode(newModelMesh)


How to create a SceneKit SCNSkinner object in code?

So I have this app called Dripper that I put out about a month ago and then an update a couple days ago. The update added push notifications and a few little tweaks. I tested it with the sandbox-apn using the development profile and things worked great. Then I switched things to the production-apn and pushed it to test-flight, again things worked perfectly. Once I put update on the market and ran it I noticed I wasn’t getting any new push registrations on the server. I looked at the console logs for the device and found this:

&gt;Dec  4 17:55:15 Ina-touch-it coffco[1210] &lt;Warning&gt;: Registering for remote notifications&lt;br/&gt;
&gt;Dec  4 17:55:15 Ina-touch-it SpringBoard[52] &lt;Warning&gt;: No valid &#39;aps-environment&#39; entitlement string found for application &#39;Dripper&#39;: (null). Notifications will not be delivered.&lt;br/&gt;
&gt;Dec  4 17:55:15 Ina-touch-it coffco[1210] `&lt;Warning&gt;: Failed to register with error : Error Domain=NSCocoaErrorDomain Code=3000 &quot;no valid &#39;aps-environment&#39; entitlement string found for application&quot; UserInfo=0x174270900 {NSLocalizedDescription=no valid &#39;aps-environment&#39; entitlement string found for application}`

I am a bit confused because I thought that the production-apn would function the same between ad-hoc and app store builds. 

Here is my app id and its entitlements:

[![enter image description here][1]][1]

Here is the provisioning profile for the apps store:

[![enter image description here][2]][2]


  [1]: https://i.stack.imgur.com/uf4pB.png
  [2]: https://i.stack.imgur.com/AYOV5.png

No valid &#39;aps-environment&#39; entitlement string found for application on app store

I have to admit that with the release of iOS 8 I am a bit confused about dynamic and static frameworks in iOS.

I am looking for a way to distribute a library that I created, and I need to support iOS 7 and above. (Note: This will be a proprietary framework. I cannot use cocoa pods, and I also cannot distribute the source). Here is what I already know:

- iOS 8 introduced &quot;embedded frameworks&quot; for iOS, but, as I understand, they do not work for iOS 7, only for iOS 8 and above.
- I have the option of distributing my library as a static library (.a file) and also distribute the headers. I know that this is a common way of dealing with the situation, but I would like to find something simpler than that (and also to bundle some resources with it, if possible).
- I have also found that iOS 7 does not support dynamic .framework libraries (only static) because it doesn&#39;t support dynamic linking. But iOS 8 does, as well as static linking.

And here are my questions regarding this information:

- I saw that I can create a .framework target, and make it static, by changing the Mach-O type to &quot;static library. Would that be enough in order to support iOS 7 without any problems, and also to distribute my library as a .framework bundle? If so, why is &quot;embedded frameworks&quot; in iOS 8 that big of a deal, as many resources on the internet are suggesting? Am I missing something?
- Is it necessary to codesign the .framework just as I do with any other application I make?
- What if I need to include other resources (like Core Data or Images) with my .framework file? Will I need to make a separate .bundle file for that?

iOS Static vs Dynamic frameworks clarifications

I&#39;m creating an iOS framework with Xcode6 and iOS8. When I link this with an iOS app and try running it on the device I get this error

    dyld: Library not loaded: @rpath/FrameworkName.framework/FrameworkName
      Referenced from: /private/var/mobile/Containers/Bundle/Application/0F2C2461-A68B-4ABA-A604-B88E6E9D1BB1/AppName.app/AppName
      Reason: image not found

The &#39;Runpath Search Paths&#39; build setting for the framework is set by default to 

    &#39;@executable_path/Frameworks&#39;, &#39;@loader_path/Frameworks&#39;

I could not find any documentation related to this. This was something new introduced with Xcode6 and I would expect it to just work by simply including the framework into any app that needs it.


dyld: Library not loaded: @rpath with iOS8

With **Xcode 6** we get ability to create own Dynamic `Cocoa Frameworks`.

![enter image description here][1]

Because of:

- Simulator still use `32-bit` library

- &gt;beginning June 1, 2015 app updates submitted to the App Store must include 64-bit support and be built with the iOS 8 SDK ([developer.apple.com][2])

We have to make fat library to run project on devices and simulators. i.e. support both 32 and 64 bit in Frameworks.

But I didn&#39;t find any manuals, how to **export** universal fat Framework for future integration with other projects (and share this library with someone).


## Here is my steps to reproduce:

1. Set `ONLY_ACTIVE_ARCH=NO` in the `Build Settings` 

   ![enter image description here][3]

2. Add support `armv7 armv7s arm64 i386 x86_64` to `Architectures` (for sure)

![enter image description here][4]

3. Build Framework and open it in Finder:

![enter image description here][5]
![enter image description here][6]

4. Add this framework to another project

## Actual result:

But in the end I still have problem with running project with this framework on devices and simulator at once. 

- if I take framework from `Debug-iphoneos` folder  - it works on devices
and gets error on simulators: `ld: symbol(s) not found for architecture i386`

        xcrun lipo -info CoreActionSheetPicker
    &gt;Architectures in the fat file: CoreActionSheetPicker are: armv7 armv7s arm64

- if I take framework from `Debug-iphonesimulator` folder - it works on simulators. and I have error on device: `ld: symbol(s) not found for architecture arm64`

        xcrun lipo -info CoreActionSheetPicker
    &gt;Architectures in the fat file: CoreActionSheetPicker are: i386 x86_64

## So, how to create a dynamic framework that works on devices and simulators?

This answer related to https://stackoverflow.com/questions/24039470/xcode-6-ios-creating-a-cocoa-touch-framework-architectures-issues but it&#39;s not duplicate.

---
Update:
---

I found a &quot;dirty hack&quot; for this case. See my [answer below][7].
If someone knows more convenient way - please, let me know!


  [1]: http://i.stack.imgur.com/AmsPU.png
  [2]: https://developer.apple.com/news/?id=04082015a
  [3]: http://i.stack.imgur.com/jwhDR.png
  [4]: http://i.stack.imgur.com/nyFxb.png
  [5]: http://i.stack.imgur.com/a4fiG.png
  [6]: http://i.stack.imgur.com/uVL6V.png
  [7]: https://stackoverflow.com/a/29650369/1698467

How to export &quot;fat&quot; Cocoa Touch Framework (for Simulator and Device)?

I am implementing FB  Login so i Downloaded the SDK from https://developers.facebook.com/docs/ios.
then i drag n down `FBSDKCoreKit`, `FBSDKLoginKit` and `FBSDKShareKit` frameworks into my project.

when i ran project it works fine. but when i closed and reopen it, then `&quot;FBSDKCoreKit/FBSDKCoreKit.h  not found error&quot;` appears. then again i copy paste `FBSDKCoreKit` framework into my project&#39;s library
 and error disappear and this process continues. anyone faced this problem before?

what should i do to solve this error?

FBSDKCoreKit/FBSDKCoreKit.h not found error

From web application design and development point of view, how do Express and Hapi compare to each other? For basic examples they seem similar, however I&#39;m interested to learn more about key differences in overall application structure.

For example, as far as I have learned, Hapi uses a [different][1] routing mechanism which does not take registration order into account, can do faster lookups, but is limited comparing to Express. Are there other important differences?

There is also an [article][2] about choosing Hapi (over Express) for developing the new npmjs.com website, this article states that &quot;Hapi’s plugin system means that we can isolate different facets and services of the application in ways that would allow for microservices in the future. Express, on the other hand, requires a bit more configuration to get the same functionality&quot;, what does it exactly mean?


  [1]: https://gist.github.com/hueniverse/a3109f716bf25718ba0e
  [2]: http://blog.npmjs.org/post/88024339405/nearing-practical-maintainability

Content Type	Original Author	Original Content on Stackoverflow
Question	Alberto Schiariti	View Question on Stackoverflow
Solution 1 - Xcode	Jakub Truhlář	View Answer on Stackoverflow
Solution 2 - Xcode	ff10	View Answer on Stackoverflow
Solution 3 - Xcode	yoAlex5	View Answer on Stackoverflow

Link Binary with libraries VS Embed Frameworks

Xcode Problem Overview

Xcode Solutions

Solution 1 - Xcode

Solution 2 - Xcode

Solution 3 - Xcode

Publish an Android library to Maven with AAR and sources JAR

Android check null or empty string in Android

Attributions