關於升級xcode7 編譯崩潰-[UIApplication _runWithMainScene:transitionContext:completion:] 問題

標籤：

崩潰原因crash： Assertion failure in 
-[UIApplication _runWithMainScene:transitionContext:completion:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-

 （*** Terminating app due to uncaught exception ‘NSInternalInconsistencyException‘, `enter code here`reason: ‘Application windows are expected to have a root view controller at the end of application launch‘*** First throw call stack:）   嘗試解決方案一：//  *************代碼做調整，加入到下一個loop周期中，再次運行代碼，程式正常。******// - (void)applicationDidBecomeActive:(UIApplication *)application {
    // 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.
   
    //crash in ios9
    _testWindow = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    _testWindow.hidden = NO;
   
    //ok
    //    dispatch_async(dispatch_get_main_queue(), ^{
    //        _testWindow = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    //        _testWindow.hidden = NO;
    //    });
   
   }Or  嘗試解決方案二： Xcode7 需要所有的視窗都必須有根控制器XCODE 7 requires that all the Windows must have a rootViewController You can use easy:  UIViewController* vc = [[UIViewController alloc]initWithNibName:nil bundle:nil];   self.window.rootViewController = vc; It‘s working good if you need to use only UIWindow (for easy examples from any Tutorials - before Xcode 7)!

關於升級xcode7 編譯崩潰-[UIApplication _runWithMainScene:transitionContext:completion:] 問題