在iOS中旋转时，inputAccessoryView的UIToolbar变黑 [英] inputAccessoryView's UIToolbar turns black when rotating in iOS

问题描述

这是我的代码：

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

    let keyBoardToolBar = UIToolbar(frame: CGRectMake(0, 0, self.view.frame.size.width, 44))
    keyBoardToolBar.barStyle = .Default

    let flexSpaceKeyboardBarButtonItem = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)

    let doneKeyboardBarButtonItem = UIBarButtonItem(title: "Done", style: .Done, target: self, action: nil)

    let wordKeyboardBarButtonItem = UIBarButtonItem(title: "Button 1", style: .Plain, target: self, action: nil)

    var barItems: [UIBarButtonItem] = []
    barItems.append(wordKeyboardBarButtonItem)
    barItems.append(flexSpaceKeyboardBarButtonItem)
    barItems.append(doneKeyboardBarButtonItem)

    keyBoardToolBar.setItems(barItems, animated: true)

    self.myTV.inputAccessoryView = keyBoardToolBar
}

当我转动设备时，UIToolBar变黑:(点击再次看到这个GIF）

And when I am turning the device, the UIToolBar become black: (click to see this GIF again)

那么无论如何要修复它？谢谢！

So is there anyway to fix it? Thanks!

BTW：在模拟器中，我看不到UIToolBar变黑。

BTW: In Simulator I cannot see UIToolBar turning black.

推荐答案

通过添加修复:(仍然不清楚导致它的原因）

Fixed by adding: (still unclear about the reason causing it though)

keyBoardToolBar.isTranslucent = false
keyBoardToolBar.barTintColor = UIColor(colorLiteralRed: (247/255), green: (247/255), blue: (247/255), alpha: 1)

（ UIColor（colorLiteralRed：（247/255），绿色：（247/255），蓝色：（247/255），alpha：1） 是来自此处的UIToolBar的默认背景颜色。

(UIColor(colorLiteralRed: (247/255), green: (247/255), blue: (247/255), alpha: 1) is the default background color of the UIToolBar from here)

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