如何解决此错误？这很烦人。 正在处理和构建的项目只是一个带有1个ViewController文件的简单应用程序，使用AVPlayerLayer将2个本地视频加载到一个简单的应用程序上并将其添加到UIView。
笔记本电脑规格：
Macbook Pro 15英寸Retina Mid-2014
OSX El Capitan，10.11.3
2.5 GHz i7
16GB DDR3内存
NVIDIA GT 750m
更新
经过进一步调查后，我正在运行的特定程序导致问题。这是项目中目前的代码，有没有人有想法？
import UIKit
import AVKit
import AVFoundation
import CoreGraphics
class ViewController: UIViewController, UIScrollViewDelegate, UITableViewDataSource, UITableViewDelegate, UITextFieldDelegate {
/****************************************
Initializers
****************************************/
let screenSize = UIScreen.mainScreen().bounds
var screenWidth: CGFloat { get{ return screenSize.width } }
var screenHeight: CGFloat { get{ return screenSize.height } }
var defaultCGRect: CGRect{ get{ return CGRectMake(0, 0, screenSize.width, screenSize.height) } }
let profileView = UIView()
let tableView = UITableView()
let worldView = UIView()
let scrollView = UIScrollView()
/** Table setup **/
let cellIdentifier = "cell"
var tableData = [String]()
/** Scroll setup **/
var frame: CGRect = CGRectMake(0, 0, 0, 0)
var pageControl : UIPageControl = UIPageControl(frame: CGRectMake(50, 300, 200, 50))
/* size of color array determines page count, the lines commented with /!\ are where the number needs to be placed
to correctly work */
var colors:[UIColor] = [UIColor.redColor(), UIColor.blueColor(), UIColor.greenColor()]//, UIColor.yellowColor()]
/****************************************
****************************************/
override func viewDidLoad() {
super.viewDidLoad()
/****************************************
Update Relevant Initializers
****************************************/
profileView.frame = defaultCGRect
worldView.frame = defaultCGRect
tableView.frame = defaultCGRect
for index in 1...12 {
self.tableData.append("Lesson \(index)")
}
self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: self.cellIdentifier)
tableView.scrollEnabled = false
tableView.separatorStyle = UITableViewCellSeparatorStyle.None
tableView.delegate = self
tableView.dataSource = self
scrollView.frame = defaultCGRect
scrollView.delegate = self
self.view.addSubview(scrollView)
/***** Resources ****/
/****************************************
****************************************/
for index in 0..<colors.count {///!\
frame.origin.x = self.scrollView.frame.size.width * CGFloat(index)
frame.size = self.scrollView.frame.size
self.scrollView.pagingEnabled = true
var subView = UIView(frame: frame)
if index == 0{
let parentLayer = CALayer()
let playerLayer:AVPlayerLayer = getVideoLayer("understand", frame: screenSize)
let logoLayer = getImageLayer("logo_v5.1.png", center: true, opacity: 0.6)
parentLayer.addSublayer(playerLayer)
parentLayer.addSublayer(logoLayer)
profileView.frame = frame
profileView.layer.addSublayer(parentLayer)
subView = profileView
}else if index == 1{
var tableFrame = frame
tableFrame.origin.y = frame.origin.y + 24//change 24 to auto later
tableView.frame = tableFrame
subView = tableView
}else{
let parentLayer = CALayer()
let playerLayer:AVPlayerLayer = getVideoLayer("home", frame: screenSize)
let logoLayer = getImageLayer("logo_v5.1.png", center: true, opacity: 0.6)
parentLayer.addSublayer(playerLayer)
parentLayer.addSublayer(logoLayer)
worldView.frame = frame
worldView.layer.addSublayer(parentLayer)
subView = worldView
}
self.scrollView.addSubview(subView)
}
self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * 3, self.scrollView.frame.size.height)///!\
pageControl.addTarget(self, action: Selector("changePage:"), forControlEvents: UIControlEvents.ValueChanged)
}
// MARK : TO CHANGE WHILE CLICKING ON PAGE CONTROL
func changePage(sender: AnyObject) -> () {
let x = CGFloat(pageControl.currentPage) * scrollView.frame.size.width
scrollView.setContentOffset(CGPointMake(x, 0), animated: true)
}
func scrollViewDidEndDecelerating(scrollView: UIScrollView) {
let pageNumber = round(scrollView.contentOffset.x / scrollView.frame.size.width)
pageControl.currentPage = Int(pageNumber)
}
// UITableViewDataSource methods
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return tableData.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier(self.cellIdentifier) as UITableViewCell!
cell.textLabel?.text = self.tableData[indexPath.row]
return cell
}
// UITableViewDelegate methods
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return calculateHeight()
}
func calculateHeight() -> CGFloat {
if UIDevice.currentDevice().userInterfaceIdiom == .Pad
{
return CGFloat(100) // iPad
} else {
return CGFloat(53) // iPhone
}
}
func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
let alert = UIAlertController(title: "Item selected", message: "You selected item \(indexPath.row)", preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "OK",
style: UIAlertActionStyle.Default,
handler: {
(alert: UIAlertAction!) in print("An alert of type \(alert.style.hashValue) was tapped!")
}))
self.presentViewController(alert, animated: true, completion: nil)
}
func getImageLayer(image: String, center: Bool, opacity: Float = 1.0) -> CALayer{
let imageLayer = CALayer()
var image: UIImage = UIImage(named:image)!
imageLayer.contents = image.CGImage
if center{
var imageWidth: CGFloat { get{ return CGFloat(screenWidth-50) } }
var imageHeight: CGFloat { get{ return CGFloat((screenHeight/2)-80) } }
var centerX: CGFloat { get{ return CGFloat(screenWidth/2)-(imageWidth/2) } }
var centerY: CGFloat { get{ return CGFloat(screenHeight/2)-((imageHeight/1.65)) } }
imageLayer.frame = CGRectMake(centerX, centerY, imageWidth, imageHeight)
}
imageLayer.opacity = opacity
return imageLayer
}
func getVideoLayer(videoName: String, frame: CGRect) -> AVPlayerLayer{
let videoURL: NSURL = NSBundle.mainBundle().URLForResource(videoName, withExtension: "mp4")!
let player = AVPlayer(URL: videoURL)
let playerLayer = AVPlayerLayer(player: player)
playerLayer.frame = frame
playerLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
player.play()
return playerLayer
}
}
Xcode中的调试器窗口显示构建占用了100mb的内存，但没有网络使用的迹象......
更新2：
以下是控制台窗口中引用模拟器的日志。似乎列出了多个错误，但有人可以帮助我理解它们的含义。
Mar 4 23:02:32 Clarkes-MacBook-Pro nanoregistrylaunchd[3088]: Failed to enable path: code = 113: Could not find specified service, /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/NanoLaunchDaemons/com.apple.NPKCompanionAgent.plist
Mar 4 23:02:32 Clarkes-MacBook-Pro nanoregistrylaunchd[3088]: Failed to enable path: code = 113: Could not find specified service, /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/NanoLaunchDaemons/com.apple.pairedunlockd-phone.plist
Mar 4 23:02:32 Clarkes-MacBook-Pro calaccessd[3078]: table drop: 101
Mar 4 23:02:39 Clarkes-MacBook-Pro SpringBoard[3036]: Weekly asset update check did fire (force=NO)
Mar 4 23:02:39 Clarkes-MacBook-Pro SpringBoard[3036]: Beginning check for asset updates (force: 0
Mar 4 23:02:39 Clarkes-MacBook-Pro SpringBoard[3036]: Did not complete check for asset updates (force: 0, isVoiceOverRunning: 0
Mar 4 23:03:01 Clarkes-MacBook-Pro lsd[3056]: LaunchServices: Currently 0 installed placeholders: (
)
Mar 4 23:03:07 Clarkes-MacBook-Pro assertiond[3040]: assertion failed: 15D21 13C75: assertiond + 12188 [8CF1968D-3466-38B7-B225-3F6F5B64C552]: 0x1
Mar 4 23:03:09 --- last message repeated 1 time ---
Mar 4 23:03:09 Clarkes-MacBook-Pro mstreamd[3025]: (Note ) PS: Media stream daemon stopping.
Mar 4 23:03:09 Clarkes-MacBook-Pro mstreamd[3025]: (Note ) AS: : Shared Streams daemon has shut down.
Mar 4 23:03:09 Clarkes-MacBook-Pro mstreamd[3025]: (Warn ) mstreamd: mstreamd shutting down.
Mar 4 23:03:12 Clarkes-MacBook-Pro assertiond[3040]: assertion failed: 15D21 13C75: assertiond + 12188 [8CF1968D-3466-38B7-B225-3F6F5B64C552]: 0x1