0
在我ViewController.swift
我有這樣的方法,提出了箱子的動畫完成後,模態一個視圖控制器:EXC_BREAKPOINT
@objc func sceneTapped(recognizer: UITapGestureRecognizer) {
let location = recognizer.location(in: sceneView)
let hitResults = sceneView.hitTest(location, options: nil)
if hitResults.count > 0 {
let result = hitResults[0]
let box = result.node
let fadeAction = SCNAction.fadeOut(duration: 1.0)
let rotateAction = SCNAction.rotate(by: CGFloat(Double.pi*2), around: SCNVector3(x: 0.5, y: 1.5, z: 0), duration: 1.0)
let groupActions = SCNAction.group([rotateAction, fadeAction])
if box.name == Present.left.rawValue || box.name == Present.middle.rawValue || box.name == Present.right.rawValue {
box.runAction(groupActions, completionHandler: presentWebView)
}
}
}
presentWebView
用故事板實例化視圖 - 控制:
func presentWebView(){
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewController(withIdentifier: "webViewController")
self.present(vc, animated: true, completion: nil)
}
但每次上self.present(vc, animated: true, completion: nil)
應用程序崩潰與EXC_BREAKPOINT (code=1, subcode=0x1a1579b50)
然而,當我不存在於完成處理程序的視圖控制器,即:
@objc func sceneTapped(recognizer: UITapGestureRecognizer) {
presentWebView()
}
這工作完全沒
所以我不明白,爲什麼在完成處理程序呈現視圖控制器導致崩潰。
任何幫助將不勝感激!