Question

如果有人能找到正确的副本请将它链接到我，我会非常感激，但我的情况与那些也有错误的人有点不同。我的具体问题是，一旦模拟器打开我的应用程序，只有一个空白的黑屏，没有错误发生或没有任何加载，直到我点击屏幕导致以下错误。

编辑：我已经注释掉了我的代码中的所有内容，它仍然收到此错误，并且创建了一个新的main.storyboard，仍然没有解决方案......

unexpected nil window in _UIApplicationHandleEventFromQueueEvent, _windowServerHitTestWindow: <UIClassicWindow: 0x7f9f3a445190; frame = (0 0; 414 736); userInteractionEnabled = NO; gestureRecognizers = <NSArray: 0x7f9f3a510ed0>; layer = <UIWindowLayer: 0x7f9f3a4077d0>>

据我所知，我没有更改任何代码，所以下面是我的整个视图控制器，后跟我的应用代表

查看控制器：

import UIKit
import GoogleMaps
import Parse
import MediaPlayer
import MobileCoreServices


class ViewController: UIViewController {
@IBOutlet weak var viewMap: GMSMapView!



override func viewDidLoad() {
    super.viewDidLoad()

    let testObject = PFObject(className: "TestObject")
    testObject["foo"] = "bar"
    testObject.saveInBackgroundWithBlock { (success: Bool, error: NSError?) -> Void in
        print("Object has been saved.")
    }

    let camera = GMSCameraPosition.cameraWithLatitude(33.600727, longitude: -117.900840, zoom: 16.9)


    viewMap.camera = camera
    viewMap.myLocationEnabled = true
    viewMap.settings.myLocationButton = true


    let marker = GMSMarker()
    marker.position = CLLocationCoordinate2DMake(33.600727, -117.900840)
    marker.title = "Newport Beach"
    marker.snippet = "California"
    marker.map = viewMap

    // Do any additional setup after loading the view, typically from a nib.
    let button   = UIButton(type: UIButtonType.System) as UIButton
    button.frame = CGRectMake(100, 100, 100, 50)
    button.setTitle("Test Button", forState: UIControlState.Normal)
    button.addTarget(self, action: "buttonAction:", forControlEvents: UIControlEvents.TouchUpInside)

    self.view.addSubview(button)
    Upload()
}



func Upload() {
var path = NSBundle.mainBundle().pathForResource("/Users/matthewcarlson/Downloads/big_buck_bunny_720p_2mb.mp4", ofType: "mp4")
var videodata: NSData?
videodata = NSData.dataWithContentsOfMappedFile(path!) as? NSData


let file = PFFile(name:"resume.txt", data:videodata!)
file!.saveInBackground()

}


override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

@IBAction func snapNext(sender: AnyObject) {
    let newLocation = GMSCameraPosition.cameraWithLatitude(33.622578, longitude: -117.911099, zoom: 16.9)
    viewMap.camera = newLocation



}

func buttonAction(sender:UIButton!)
{
    print("Button tapped")

}
}

的AppDelegate：

import UIKit
import GoogleMaps
import Parse
import Bolts

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?


func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.
    // Initialize Parse.
    let configuration = ParseClientConfiguration {
        $0.applicationId = "w4hfIKBxy5uHc9eHQ3GavJ4vT9qyJBzKoO66pyM5"
        $0.clientKey = "jsZ8pfx6FfIVMlLUYvZ6MAdnBIltMiae5TgZWW9o"
        $0.server = "https://parseapi.back4app.com/"
    }
    Parse.initializeWithConfiguration(configuration)

    //initialize GoogleMaps
    GMSServices.provideAPIKey("AIzaSyDClpTwyY3swY2rlLKejd1pCVurTkVuNGg")
    return true



}

func applicationWillResignActive(application: UIApplication) {
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

func applicationDidEnterBackground(application: UIApplication) {
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

func applicationWillEnterForeground(application: UIApplication) {
    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

func applicationDidBecomeActive(application: UIApplication) {
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

func applicationWillTerminate(application: UIApplication) {
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}


}

任何帮助都非常感谢我已经清理了构建，再次运行它，并强制退出Xcode并且模拟器到目前为止没有任何工作。

Answer 1

尝试以下解决方法：

在实例化UIWindow之前设置状态栏方向。

(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Init my stuff
    // ...
    // Prepare window
[application setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO]; // prevent start orientation bug
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window makeKeyAndVisible];
return YES;

为我的主xib中的窗口设置“隐藏”为“是”。
在窗口从根视图控制器获取方向后设置框架。
打开主xib文件，从左侧找到“Window”，启用启动时可见，启动时启用全屏。
查看您的Window nib文件，确保它占用全屏。

检查以下相关问题：

Answer 2

更改代码。在函数的最后一个处添加super.viewDidLoad而不是在第一个函数处可以解决您的问题。

意外的零窗口（空白黑屏）

2 个答案: