Question

在我的应用程序中，我想通过关闭当前视图控制器来显示新的视图控制器。这是我的尝试：

@IBAction func go_back_btn_pressed(_ sender: UIButton) {

    self.dismiss(animated: true, completion: {
        let vc = self.storyboard?.instantiateViewController(withIdentifier: "goOrders")
        vc!.present(vc!, animated: true, completion: nil)
        })
}

我尝试使用此代码执行此操作，但它显示错误。错误：

'NSInvalidArgumentException'，原因：'Storyboard（）不包含带有标识符'goOrders'的视图控制器 ***第一次抛出调用堆栈：（ 0 CoreFoundation 0x000000010eeab1e6 exceptionPreprocess + 294 1 libobjc.A.dylib 0x000000010e540031 objc_exception_throw + 48 2 UIKit 0x00000001105f33eb - [UIStoryboard instantiateInitialViewController] + 0 3 ProArt 0x000000010d5483c0 _T06ProArt25SelectPhotoViewControllerC19go_back_btn_pressedySo8UIButtonCFyycfU_ + 192 4 ProArt 0x000000010d549e3d _T06ProArt25SelectPhotoViewControllerC19go_back_btn_pressedySo8UIButtonCFyycfU_TA + 13 5 ProArt 0x000000010d4efd7d _T0Ieg_IeyB_TR + 45 6 UIKit 0x000000010fe4fd02 - [UIPresentationController transitionDidFinish：] + 1346 7 UIKit 0x00000001100d3f00 - [_ UICurrentContextPresentationController transitionDidFinish：] + 44 8 UIKit 0x000000010fe53b72 __56- [UIPresentationController runTransitionForCurrentState] _block_invoke.436 + 183 9 UIKit 0x0000000110a37274 - [_ UIViewControllerTransitionContext completeTransition：] + 102 10 UIKit 0x000000010fe4caee - [UITransitionView notifyDidCompleteTransition：] + 251 11 UIKit 0x000000010fe4c765 - [UITransitionView _didCompleteTransition：] + 1397 12 UIKit 0x000000010fe4ed9c - [UITransitionView _transitionDidStop：finished：] + 104 13 UIKit 0x000000010fd72f09 - [UIViewAnimationState sendDelegateAnimationDidStop：finished：] + 343 14 UIKit 0x000000010fd7354c - [UIViewAnimationState animationDidStop：finished：] + 293 15 UIKit 0x000000010fd73600 - [UIViewAnimationState animationDidStop：finished：] + 473 16 QuartzCore 0x000000010fb277a9 _ZN2CA5Layer23run_animation_callbacksEPv + 323 17 libdispatch.dylib 0x0000000113c4f848 _dispatch_client_callout + 8 18 libdispatch.dylib 0x0000000113c5a92b _dispatch_main_queue_callback_4CF + 628 19 CoreFoundation 0x000000010ee6dc99 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 9 20 CoreFoundation 0x000000010ee31ea6 __CFRunLoopRun + 2342 21 CoreFoundation 0x000000010ee3130b CFRunLoopRunSpecific + 635 22 GraphicsServices 0x00000001174e7a73 GSEventRunModal + 62 23 UIKit 0x000000010fcde0b7 UIApplicationMain + 159 24 ProArt 0x000000010d52d6f7 main + 55 25 libdyld.dylib 0x0000000113ccc955 start + 1 ）

但是在我的应用程序中有一个带有“goOrders”的标识符。这是它

Answer 1

1 - 您必须在此设置 goOrders ID

少连接

2-不要使用新的VC来展示自己

面向连接

 self.dismiss(animated: true, completion: {
     let vc = self.storyboard?.instantiateViewController(withIdentifier: "goOrders")

     // if it will be the root
         UIApplication.shared.keyWindow?.rootViewController?.present(vc!, animated: true, completion: nil)
    })

//

或在presentationVC的viewDidAppear中显示它

swift4：关闭当前视图控制器并显示另一个没有navigationController

1 个答案: