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IBOutlets in Nib are null for both awakeFromNib and initWithCoder - no subheadings

I have a custom subclass of UIView with three additional objects added to it through a Nib file (UIImageView, UIView and UITextField) and a set of IBOutlets. But when awakeFromNib or initWithCoder is called in the subclass, then all IBOutlets nil and even the subviews array are empty .

I use Swift and Xcode 6 beta 5, where this subclass of UIView is in the framework , and I added a subclass of UIView to the Storyboard in my project so that I can use the new Live View . But I can’t see the added subspecies in Live View, which is very sad.

I could not find any way to fix this, here is the code from my subclass of UIView:

 import UIKit @IBDesignable public class BlurredSheetEntryView: UIView { @IBOutlet var iconImageView: UIImageView? @IBOutlet var separatorView: UIView? @IBOutlet public var textField: UITextField? override init(frame: CGRect) { super.init(frame: frame) } required public init(coder aDecoder: NSCoder!) { super.init(coder: aDecoder) for subView in self.subviews { println("subView: \(subView)") } println("self.textField: \(self.textField)") println("self.iconImageView: \(self.iconImageView)") println("self.separatorView: \(self.separatorView)") } override public func awakeFromNib() { for subView in self.subviews { println("subView: \(subView)") } println("self.textField: \(self.textField)") println("self.iconImageView: \(self.iconImageView)") println("self.separatorView: \(self.separatorView)") } }

And my Nib file looks like this:

 <?xml version="1.0" encoding="UTF-8" standalone="no"?> <document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6205" systemVersion="14A314h" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES"> <dependencies> <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6198"/> <capability name="Aspect ratio constraints" minToolsVersion="5.1"/> </dependencies> <objects> <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File Owner"/> <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/> <view contentMode="scaleToFill" id="iN0-l3-epB" customClass="BlurredSheetEntryView" customModule="BlurredSheetEntry" customModuleProvider="target"> <rect key="frame" x="0.0" y="0.0" width="300" height="50"/> <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/> <subviews> <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="ZnN-gy-Mc6"> <rect key="frame" x="8" y="5" width="40" height="40"/> <constraints> <constraint firstAttribute="width" secondItem="ZnN-gy-Mc6" secondAttribute="height" multiplier="1:1" id="C4N-zC-woh"/> </constraints> </imageView> <textField opaque="NO" clipsSubviews="YES" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" placeholder="Placeholder" minimumFontSize="17" clearButtonMode="whileEditing" translatesAutoresizingMaskIntoConstraints="NO" id="npg-xI-NSo"> <rect key="frame" x="66" y="8" width="226" height="34"/> <fontDescription key="fontDescription" type="system" pointSize="15"/> <textInputTraits key="textInputTraits"/> </textField> <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="8lA-9y-yoA"> <rect key="frame" x="56" y="5" width="2" height="40"/> <color key="backgroundColor" white="0.66666666666666663" alpha="1" colorSpace="calibratedWhite"/> <constraints> <constraint firstAttribute="width" constant="2" id="QgG-pW-8q0"/> </constraints> </view> </subviews> <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/> <constraints> <constraint firstAttribute="bottom" secondItem="8lA-9y-yoA" secondAttribute="bottom" constant="5" id="51o-Il-vGA"/> <constraint firstItem="8lA-9y-yoA" firstAttribute="leading" secondItem="ZnN-gy-Mc6" secondAttribute="trailing" constant="8" id="AEG-I2-vsT"/> <constraint firstAttribute="bottom" secondItem="npg-xI-NSo" secondAttribute="bottom" constant="8" id="E0H-fN-lg4"/> <constraint firstItem="8lA-9y-yoA" firstAttribute="top" secondItem="iN0-l3-epB" secondAttribute="top" constant="5" id="EYR-L8-96J"/> <constraint firstAttribute="bottom" secondItem="ZnN-gy-Mc6" secondAttribute="bottom" constant="5" id="GFW-R2-jGI"/> <constraint firstAttribute="trailing" secondItem="npg-xI-NSo" secondAttribute="trailing" constant="8" id="Lws-lv-n37"/> <constraint firstItem="ZnN-gy-Mc6" firstAttribute="top" secondItem="iN0-l3-epB" secondAttribute="top" constant="5" id="Pv0-ZV-aT4"/> <constraint firstItem="ZnN-gy-Mc6" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="8" id="XOI-jO-Sv7"/> <constraint firstItem="npg-xI-NSo" firstAttribute="top" secondItem="iN0-l3-epB" secondAttribute="top" constant="8" id="dA3-Wg-XfN"/> <constraint firstItem="npg-xI-NSo" firstAttribute="leading" secondItem="8lA-9y-yoA" secondAttribute="trailing" constant="8" id="mq6-6r-Z2b"/> </constraints> <nil key="simulatedStatusBarMetrics"/> <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/> <connections> <outlet property="iconImageView" destination="ZnN-gy-Mc6" id="0Hp-sr-mqx"/> <outlet property="separatorView" destination="8lA-9y-yoA" id="VFx-En-K3c"/> <outlet property="textField" destination="npg-xI-NSo" id="tIy-N2-g2j"/> </connections> <point key="canvasLocation" x="371" y="327"/> </view> </objects> </document>

UPDATE: I created an absolutely simple example project where I just did the following:

  • select Master-View template for iOS
  • add a new structure called "MyCustomTableViewCell" with the Xib file.
  • Add a UIView with a blue background color as a preview in the Xib file.
  • add @IBOutlet and join in Swift file
  • add println () statement in awakeFromNib () to Swift file
  • set the cell class in the main table view of the subclass from the framework

When I create and run and click the “+” sign in the upper right corner, I get a “zero” printed on the console as a result for @IBOutlet. This is my problem and it annoys me. But maybe I'm doing something wrong here ...

I downloaded a sample project, here is the download URL: https://www.dropbox.com/s/vcb0sa98tw6i1iv/NilObjectsFromXib.zip?dl=0

I use the framework because I need me to see my subclass as a Live View in the main storyboard.

Thanks for any help in advance! :)

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I reviewed your project and: you need to add your XIB file to Copy bundle resourses in the project settings

You need to register a custom XIB element for use in the table view through:

  override func viewDidLoad() { super.viewDidLoad() self.tableView.registerNib(UINib(nibName:"MyCustomTableViewCell", bundle: nil), forCellReuseIdentifier: "CustomCell") }

Then you can use your own cell in your table:

 override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCellWithIdentifier("CustomCell", forIndexPath: indexPath) as MyCustomTableViewCell // Do something with your cell return cell }
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Source: https://habr.com/ru/post/973479/

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