應用升級的項目之後，更新代碼的xcode 9和迅速4

應用崩潰後震落XCODE 9和迅速4.同時在應用升級的項目之後，更新代碼的xcode 9和迅速4

backview.addsubview(stackview)

應用調試與的libC++ abi.dylib崩潰：終止與未捕獲類型爲NSException的異常。代碼在swift 3中運行完美。但是在遷移到swift 4後，它崩潰了。這是我的全部功能。

var isAlreadyThere = false 

    if let audioView = self.view.subviews.filter (
     { $0.tag == 123456}).first { 

     audioView.tag = 123456 
     isAlreadyThere = true 
    } 

    if isAlreadyThere { 
     return 
    } 

    let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.light) 
    let backView = UIVisualEffectView(effect: blurEffect) 
    backView.tag = 123456 
    backView.frame = CGRect(x: 0, y: self.view.frame.height+35 , width: self.view.frame.width, height: 40) 
    backView.autoresizingMask = [.flexibleWidth, .flexibleHeight] 
    view.addSubview(backView) 

    pauseButton = UIButton(type: .custom) 
    pauseButton.titleLabel?.font = Util.getFontSize() 
    pauseButton.setTitle("Pause", for: .normal) 
    pauseButton.setTitleColor(UIColor.black, for: .normal) 
    pauseButton.addTarget(self, action: #selector(pausePressed(_:)), for: .touchDown) 

    durationLabel = UILabel() 
    durationLabel.textColor = UIColor.black 
    durationLabel.font = Util.getFontSize() 
    durationLabel.textAlignment = .center 
    durationLabel.text = "0:00" 

    stopButton = UIButton(type: .custom) 
    stopButton.titleLabel?.font = Util.getFontSize() 
    stopButton.setTitle("Stop", for: .normal) 
    stopButton.setTitleColor(UIColor.black, for: .normal) 
    stopButton.addTarget(self, action: #selector(stopPressed(_:)), for: .touchDown) 

    let stackView = UIStackView(frame: CGRect(x: 0, y:0 , width: backView.frame.width, height: 40)) 
    stackView.alignment = .fill 
    stackView.axis = .horizontal 
    stackView.distribution = .fillEqually 
    stackView.spacing = 5 
    stackView.addArrangedSubview(pauseButton) 
    stackView.addArrangedSubview(durationLabel) 
    stackView.addArrangedSubview(stopButton) 

    backView.addSubview(stackView) 

    if audioViewYposition == nil { 
     audioViewYposition = self.view.frame.height - 40 
    } 

    UIView.animate(withDuration: 0.2, delay: 0.1, options: .curveEaseInOut, animations: { 
     backView.frame.origin.y = self.audioViewYposition 
    }, completion: nil)

來源

2017-10-10 jay patel

嘗試添加異常斷點並查看崩潰發生的位置。 –

上的錯誤表示您需要添加內容視圖中的子視圖，而不是直接對視覺效果視圖，以便解決辦法是：

backView.contentView.addSubview(stackView)

確保，如果你的異常斷點啓用跳過從斷點處幾幀看到控制檯中的錯誤消息：

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', 
reason: '<UIStackView: 0x109946ff0; frame = (0 0; 375 40); layer = <CATransformLayer: 0x1c4236640>> 
has been added as a subview to 
<UIVisualEffectView: 0x109945f40; frame = (0 702; 375 40); autoresize = W+H; tag = 123456; layer = <CALayer: 0x1c002ebc0>>. 
Do not add subviews directly to the visual effect view itself, 
instead add them to the -contentView.'

來源

2017-10-10 10:55:30

感謝您的回答。是的，我加入backView而不是contentView。但是，它在迅速3.工作也剛剛開始遷移迅速4. –

@jaypatel新的SDK後，必須在，只是蘋果的東西都踢崩潰...... –

應用升級的項目之後，更新代碼的xcode 9和迅速4

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