Statusleiste zeigt immer noch in schwarz nach ausblenden

Question

Ich habe meine Statusleiste verschwinden auf einen Knopf drücken und alle Funktionen fin versteckt und un versteckt auf Bäumen, aber wenn ich zurück zum letzten View-Controller die weiße Statusleiste verbirgt, aber immer noch eine verlässt schwarze Statusleiste zeigt an, dass ich den gleichen Code benutze, der für die gedrückte Taste verwendet wurde. Verstecken, während ich in Sicht bin, werde verschwinden.

hier sind die Codes verwendet:

// eine Schaltfläche mit Werken Durch Drücken auf die weiße Statusleiste ohne schwarze Statusleiste unterhalb versteckt.

@IBAction func onPlayPressed(sender: AnyObject) { 
    start() 


    isHidden = !isHidden 
    UIView.animateWithDuration(0.3) {() -> Void in 
     self.setNeedsStatusBarAppearanceUpdate() 

} 
    self.navigationController?.hidesBarsOnTap = false 
    self.navigationController?.setNavigationBarHidden(true, animated: true) 

// Dieser Abschnitt blendet die weiße Statusleiste aus, hinterlässt jedoch eine schwarze Statusleiste.

override func viewWillDisappear(animated: Bool) { 
    synth.pause() 
    vox.pause() 

    isHidden = true 
    UIView.animateWithDuration(0.3) {() -> Void in 
     self.setNeedsStatusBarAppearanceUpdate() 

    } 
    self.navigationController?.hidesBarsOnTap = false 
    self.navigationController?.setNavigationBarHidden(true, animated: true) 

Jede Hilfe wird sehr geschätzt.

Alles Gute Tony Merritt

Answer 1

Einige Terminologie

Statusleiste:

Navigationsleiste:

Navigation und Statusleisten:

versuchen, meine Probe:

ViewController.swift

import UIKit 

class ViewController: UIViewController { 

@IBOutlet var hideButton: UIButton! 

override func viewDidLoad() { 
    super.viewDidLoad() 
    // Do any additional setup after loading the view, typically from a nib. 
} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
    if (self.navigationController?.navigationBarHidden)! { 
     hideButton.setTitle("show", forState: .Normal) 
    } 
} 

@IBAction func hideNavigationBar(sender: AnyObject) { 
    self.navigationController?.hidesBarsOnTap = false 
    self.navigationController?.setNavigationBarHidden(!(self.navigationController?.navigationBarHidden)!, animated: true) 
} 

@IBAction func goBack(sender: AnyObject) { 
    self.navigationController?.popViewControllerAnimated(true) 
} 
} 

Main.storyboard

<?xml version="1.0" encoding="UTF-8" standalone="no"?> 
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15G31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="T9D-e2-4rQ"> 
<dependencies> 
    <deployment identifier="iOS"/> 
    <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/> 
</dependencies> 
<scenes> 
    <!--View Controller--> 
    <scene sceneID="ZDJ-xV-lml"> 
     <objects> 
      <viewController id="3W3-SS-KDU" sceneMemberID="viewController"> 
       <layoutGuides> 
        <viewControllerLayoutGuide type="top" id="Mxj-5M-2iY"/> 
        <viewControllerLayoutGuide type="bottom" id="3C4-b8-R1X"/> 
       </layoutGuides> 
       <view key="view" contentMode="scaleToFill" id="Hr5-jU-7uD"> 
        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/> 
        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/> 
        <subviews> 
         <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="DLX-GN-6Nd"> 
          <rect key="frame" x="283" y="285" width="34" height="30"/> 
          <state key="normal" title="push"/> 
          <connections> 
           <segue destination="aX5-Sj-vzs" kind="show" id="5hq-PZ-fji"/> 
          </connections> 
         </button> 
        </subviews> 
        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/> 
        <constraints> 
         <constraint firstItem="DLX-GN-6Nd" firstAttribute="centerY" secondItem="Hr5-jU-7uD" secondAttribute="centerY" id="hM7-eb-ZcS"/> 
         <constraint firstItem="DLX-GN-6Nd" firstAttribute="centerX" secondItem="Hr5-jU-7uD" secondAttribute="centerX" id="yTt-om-iNF"/> 
        </constraints> 
       </view> 
       <navigationItem key="navigationItem" id="PzV-EJ-7im"/> 
      </viewController> 
      <placeholder placeholderIdentifier="IBFirstResponder" id="GKQ-Ot-Zmx" userLabel="First Responder" sceneMemberID="firstResponder"/> 
     </objects> 
     <point key="canvasLocation" x="865" y="375"/> 
    </scene> 
    <!--View Controller--> 
    <scene sceneID="dHO-Tf-TVb"> 
     <objects> 
      <viewController id="aX5-Sj-vzs" customClass="ViewController" customModule="stackoverflow_39240675" customModuleProvider="target" sceneMemberID="viewController"> 
       <layoutGuides> 
        <viewControllerLayoutGuide type="top" id="a3I-YL-ZHX"/> 
        <viewControllerLayoutGuide type="bottom" id="EDl-yb-Y7O"/> 
       </layoutGuides> 
       <view key="view" contentMode="scaleToFill" id="dve-Qr-cm1"> 
        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/> 
        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/> 
        <subviews> 
         <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="XYd-b4-iN3"> 
          <rect key="frame" x="285" y="285" width="30" height="30"/> 
          <state key="normal" title="hide"> 
           <color key="titleColor" white="1" alpha="1" colorSpace="calibratedWhite"/> 
          </state> 
          <connections> 
           <action selector="hideNavigationBar:" destination="aX5-Sj-vzs" eventType="touchUpInside" id="8OZ-fj-hkz"/> 
          </connections> 
         </button> 
         <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="KHT-Tm-0Sw"> 
          <rect key="frame" x="283" y="323" width="34" height="30"/> 
          <state key="normal" title="back"> 
           <color key="titleColor" white="1" alpha="1" colorSpace="calibratedWhite"/> 
          </state> 
          <connections> 
           <action selector="goBack:" destination="aX5-Sj-vzs" eventType="touchUpInside" id="0Gj-6r-RH0"/> 
          </connections> 
         </button> 
        </subviews> 
        <color key="backgroundColor" white="0.66666666666666663" alpha="1" colorSpace="calibratedWhite"/> 
        <constraints> 
         <constraint firstItem="XYd-b4-iN3" firstAttribute="centerY" secondItem="dve-Qr-cm1" secondAttribute="centerY" id="4oU-lu-cib"/> 
         <constraint firstItem="KHT-Tm-0Sw" firstAttribute="centerX" secondItem="XYd-b4-iN3" secondAttribute="centerX" id="DHD-BE-uLP"/> 
         <constraint firstItem="KHT-Tm-0Sw" firstAttribute="top" secondItem="XYd-b4-iN3" secondAttribute="bottom" constant="8" symbolic="YES" id="Mfb-X2-i3d"/> 
         <constraint firstItem="XYd-b4-iN3" firstAttribute="centerX" secondItem="dve-Qr-cm1" secondAttribute="centerX" id="UY9-eH-ABh"/> 
        </constraints> 
       </view> 
       <connections> 
        <outlet property="hideButton" destination="XYd-b4-iN3" id="uLV-9H-ZwF"/> 
       </connections> 
      </viewController> 
      <placeholder placeholderIdentifier="IBFirstResponder" id="taE-x0-pMJ" userLabel="First Responder" sceneMemberID="firstResponder"/> 
     </objects> 
     <point key="canvasLocation" x="1525" y="376"/> 
    </scene> 
    <!--Navigation Controller--> 
    <scene sceneID="g8h-An-4td"> 
     <objects> 
      <navigationController automaticallyAdjustsScrollViewInsets="NO" id="T9D-e2-4rQ" sceneMemberID="viewController"> 
       <toolbarItems/> 
       <navigationBar key="navigationBar" contentMode="scaleToFill" id="8Zu-zN-61c"> 
        <rect key="frame" x="0.0" y="0.0" width="320" height="44"/> 
        <autoresizingMask key="autoresizingMask"/> 
       </navigationBar> 
       <nil name="viewControllers"/> 
       <connections> 
        <segue destination="3W3-SS-KDU" kind="relationship" relationship="rootViewController" id="P8d-UH-2I1"/> 
       </connections> 
      </navigationController> 
      <placeholder placeholderIdentifier="IBFirstResponder" id="8cC-0q-iMj" userLabel="First Responder" sceneMemberID="firstResponder"/> 
     </objects> 
     <point key="canvasLocation" x="53" y="375"/> 
    </scene> 
</scenes> 
</document>