问题
Working on my first game and trying to implement ads in to it.
I've declared the following in my viewController.h
#import <UIKit/UIKit.h>
#import <SpriteKit/SpriteKit.h>
#import <iAd/iAd.h>
@interface ViewController : UIViewController <ADBannerViewDelegate>
And in my implementation file I've Got the following (used because I need landscape layout)
- (void)viewWillLayoutSubviews
{
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"Result"];
[super viewWillLayoutSubviews];
NSError *error;
NSURL * backgroundMusicURL = [[NSBundle mainBundle] URLForResource:@"background-music-aac" withExtension:@"caf"];
self.backgroundMusicPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:backgroundMusicURL error:&error];
self.backgroundMusicPlayer.numberOfLoops = -1;
[self.backgroundMusicPlayer prepareToPlay];
[self.backgroundMusicPlayer play];
// Configure the view.
SKView * skView = (SKView *)self.view;
if (!skView.scene) {
skView.showsFPS = YES;
skView.showsNodeCount = YES;
// Create and configure the scene.
SKScene * scene = [MyScene sceneWithSize:skView.bounds.size];
scene.scaleMode = SKSceneScaleModeAspectFill;
// Present the scene.
[skView presentScene:scene];
self.canDisplayBannerAds = YES;
}
}
However when I run the app instantly crashes (log below) - if I change self.canDisplayBannerAdds = NO; the app runs fine - I have a feeling this is ridiculously simple but I can't see it for looking - anyone got any ideas?
2014-02-13 22:40:20.605 SpriteKitSimpleGame[2812:70b] -[UIView scene]: unrecognized selector sent to instance 0xcb354c0
2014-02-13 22:40:20.608 SpriteKitSimpleGame[2812:70b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIView scene]: unrecognized selector sent to instance 0xcb354c0'
*** First throw call stack:
(
0 CoreFoundation 0x019fa5e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x0177d8b6 objc_exception_throw + 44
2 CoreFoundation 0x01a97903 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275
3 CoreFoundation 0x019ea90b ___forwarding___ + 1019
4 CoreFoundation 0x019ea4ee _CF_forwarding_prep_0 + 14
5 SpriteKitSimpleGame 0x00008169 -[ViewController viewWillLayoutSubviews] + 729
6 UIKit 0x0043321a -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 278
7 libobjc.A.dylib 0x0178f81f -[NSObject performSelector:withObject:] + 70
8 QuartzCore 0x0232e2ea -[CALayer layoutSublayers] + 148
9 QuartzCore 0x023220d4 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
10 QuartzCore 0x0232e235 -[CALayer layoutIfNeeded] + 160
11 UIKit 0x004ee613 -[UIViewController window:setupWithInterfaceOrientation:] + 304
12 UIKit 0x0040d177 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 5212
13 UIKit 0x0040bd16 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 82
14 UIKit 0x0040bbe8 -[UIWindow _setRotatableViewOrientation:updateStatusBar:duration:force:] + 117
15 UIKit 0x0040bc70 -[UIWindow _setRotatableViewOrientation:duration:force:] + 67
16 UIKit 0x0040ad0a __57-[UIWindow _updateToInterfaceOrientation:duration:force:]_block_invoke + 120
17 UIKit 0x0040ac6c -[UIWindow _updateToInterfaceOrientation:duration:force:] + 400
18 UIKit 0x0040b9c3 -[UIWindow setAutorotates:forceUpdateInterfaceOrientation:] + 870
19 UIKit 0x0040efb6 -[UIWindow setDelegate:] + 449
20 UIKit 0x004e0737 -[UIViewController _tryBecomeRootViewControllerInWindow:] + 180
21 UIKit 0x00404c1c -[UIWindow addRootViewControllerViewIfPossible] + 609
22 UIKit 0x00404d97 -[UIWindow _setHidden:forced:] + 312
23 UIKit 0x0040502d -[UIWindow _orderFrontWithoutMakingKey] + 49
24 UIKit 0x0040f89a -[UIWindow makeKeyAndVisible] + 65
25 UIKit 0x003c2cd0 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1851
26 UIKit 0x003c73a8 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 824
27 UIKit 0x003db87c -[UIApplication handleEvent:withNewEvent:] + 3447
28 UIKit 0x003dbde9 -[UIApplication sendEvent:] + 85
29 UIKit 0x003c9025 _UIApplicationHandleEvent + 736
30 GraphicsServices 0x027b12f6 _PurpleEventCallback + 776
31 GraphicsServices 0x027b0e01 PurpleEventCallback + 46
32 CoreFoundation 0x01975d65 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53
33 CoreFoundation 0x01975a9b __CFRunLoopDoSource1 + 523
34 CoreFoundation 0x019a077c __CFRunLoopRun + 2156
35 CoreFoundation 0x0199fac3 CFRunLoopRunSpecific + 467
36 CoreFoundation 0x0199f8db CFRunLoopRunInMode + 123
37 UIKit 0x003c6add -[UIApplication _run] + 840
38 UIKit 0x003c8d3b UIApplicationMain + 1225
39 SpriteKitSimpleGame 0x0000979d main + 141
40 libdyld.dylib 0x0310570d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
回答1:
When canDisplayBannerAdds is set to YES, you need to use originalContentView on your controller to get hold of your view.
Try using the following code to get hold of your view:
SKView * skView = self.originalContentView;
来源：https://stackoverflow.com/questions/21767155/candisplaybannerads-yes-causes-sprite-kit-app-to-crash