Strange crashes when using MPMoviePlayerController in iPad and iPad simulator with iOS 4.2.
- by Dave L
I'm getting crashes when trying to play a movie using MPMoviePlayerController on the iPad and in the iPad simulator using iOS 4.2. I am building using xcode 3.2.5 and the 4.2 SDK. When running on an iPad using iOS 3.2 or in the iPad simulator 3.2, the same code works fine, but on an iPad running 4.2 or in the iPad simulator 4.2, it crashes. The crash is due to an exception for calling an unknown selector down somewhere deep in the cocoa libraries, something tries to call a selector called "setHitRectInsets:" on a UIButton object. Also, the crash happens after control has returned to the main event loop. Anybody have any idea what might be causing this? Here is the code (roughly, some extraneous stuff deleted that doesn't seem to have any effect) that is crashing:
NSString *fullMovieFilename = [[NSBundle mainBundle] pathForResource:@"movie" ofType:@"m4v"];
NSURL *movieURL = [NSURL fileURLWithPath:fullMovieFilename];
moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
moviePlayer.controlStyle = MPMovieControlStyleNone; // crash happens regardless of the setting here
[moviePlayer.view setFrame:self.view.bounds];
[self.view addSubview:moviePlayer.view];
[moviePlayer setFullscreen:YES animated:YES]; // crash happens whether i use fullscreen or not
[moviePlayer play];
The same code also works just find if I build using Xcode 3.2.3 and the 4.0 SDK. The crash stack trace looks like this:
2011-03-04 23:08:22.017 MyApp[31610:207] -[UIButton setHitRectInsets:]: unrecognized selector sent to instance 0x990bc60
2011-03-04 23:08:22.020 MyApp[31610:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIButton setHitRectInsets:]: unrecognized selector sent to instance 0x990bc60'
*** Call stack at first throw:
(
0 CoreFoundation 0x0151abe9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x0166f5c2 objc_exception_throw + 47
2 CoreFoundation 0x0151c6fb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x0148c366 ___forwarding___ + 966
4 CoreFoundation 0x0148bf22 _CF_forwarding_prep_0 + 50
5 MediaPlayer 0x011b5bdb -[MPTransportControls createButtonForPart:] + 380
6 MediaPlayer 0x011b65d5 -[MPTransportControls _updateAdditions:removals:forPart:] + 110
7 MediaPlayer 0x011b4d78 -[MPTransportControls _reloadViewWithAnimation:] + 299
8 MediaPlayer 0x011b621a -[MPTransportControls setVisibleParts:] + 49
9 MediaPlayer 0x011b6e4a -[MPTransportControls initWithFrame:] + 173
10 MediaPlayer 0x011f9188 -[MPInlineTransportControls initWithFrame:] + 78
11 MediaPlayer 0x011f193a -[MPInlineVideoOverlay layoutSubviews] + 158
12 QuartzCore 0x00d6e451 -[CALayer layoutSublayers] + 181
13 QuartzCore 0x00d6e17c CALayerLayoutIfNeeded + 220
14 QuartzCore 0x00d6e088 -[CALayer layoutIfNeeded] + 111
15 MediaPlayer 0x011f130c -[MPInlineVideoOverlay setAllowsWirelessPlayback:] + 46
16 MediaPlayer 0x011f5b0d -[MPInlineVideoViewController _overlayView] + 526
17 MediaPlayer 0x011f6359 -[MPInlineVideoViewController _layoutForItemTypeAvailable] + 1350
18 Foundation 0x000e56c1 _nsnote_callback + 145
19 CoreFoundation 0x014f2f99 __CFXNotificationPost_old + 745
20 CoreFoundation 0x0147233a _CFXNotificationPostNotification + 186
21 Foundation 0x000db266 -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
22 Foundation 0x000e75a9 -[NSNotificationCenter postNotificationName:object:] + 56
23 MediaPlayer 0x01184dd6 -[MPAVItem _updateForNaturalSizeChange] + 278
24 MediaPlayer 0x011818e4 __-[MPAVItem blockForDirectAVControllerNotificationReferencingItem:]_block_invoke_1 + 82
25 MediaPlayer 0x011899ba -[MPAVController _postMPAVControllerSizeDidChangeNotificationWithItem:] + 138
26 Foundation 0x000e56c1 _nsnote_callback + 145
27 CoreFoundation 0x014f2f99 __CFXNotificationPost_old + 745
28 CoreFoundation 0x0147233a _CFXNotificationPostNotification + 186
29 Foundation 0x000db266 -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
30 Celestial 0x052a35b2 -[NSObject(NSObject_AVShared) postNotificationWithDescription:] + 176
31 Celestial 0x052ab214 -[AVController fpItemNotification:sender:] + 735
32 Celestial 0x052b5305 -[AVPlaybackItem fpItemNotificationInfo:] + 640
33 Celestial 0x052a3d5c -[AVObjectRegistry safeInvokeWithDescription:] + 211
34 Foundation 0x000fa9a6 __NSThreadPerformPerform + 251
35 CoreFoundation 0x014fc01f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
36 CoreFoundation 0x0145a28b __CFRunLoopDoSources0 + 571
37 CoreFoundation 0x01459786 __CFRunLoopRun + 470
38 CoreFoundation 0x01459240 CFRunLoopRunSpecific + 208
39 CoreFoundation 0x01459161 CFRunLoopRunInMode + 97
40 GraphicsServices 0x01e4f268 GSEventRunModal + 217
41 GraphicsServices 0x01e4f32d GSEventRun + 115
42 UIKit 0x0038a42e UIApplicationMain + 1160
43 MyApp 0x0000837a main + 102
44 MpApp 0x00002009 start + 53
)
terminate called after throwing an instance of 'NSException'
Been fighting with this for several days, and have searched the internet quite a bit for anybody having similar problems, all with no luck. Any suggestions would be greatly appreciated.
