我的包含在UIPageViewController中嵌入的UITableViewController的应用有时会引发此异常:
Invalid parameter not satisfying: [views count] == 3
回溯:
* thread #1: tid = 0x6239fa, 0x03d1d88a libobjc.A.dylib`objc_exception_throw, queue = 'com.apple.main-thread, stop reason = breakpoint 25.3
frame #0: 0x03d1d88a libobjc.A.dylib`objc_exception_throw
frame #1: 0x0404f448 CoreFoundation`+[NSException raise:format:arguments:] + 136
frame #2: 0x03428fee Foundation`-[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 116
frame #3: 0x01e7c535 UIKit`-[_UIQueuingScrollView _replaceViews:updatingContents:adjustContentInsets:animated:] + 185
frame #4: 0x01e800ca UIKit`-[_UIQueuingScrollView _didScrollWithAnimation:force:] + 1231
frame #5: 0x01e7bb57 UIKit`-[_UIQueuingScrollView _scrollViewAnimationEnded:finished:] + 104
frame #6: 0x0190583c UIKit`-[UIScrollView(UIScrollViewInternal) animator:stopAnimation:fraction:] + 62
frame #7: 0x0197096e UIKit`-[UIAnimator stopAnimation:] + 533
frame #8: 0x0197100a UIKit`-[UIAnimator(Static) _advanceAnimationsOfType:withTimestamp:] + 325
frame #9: 0x01970b76 UIKit`-[UIAnimator(Static) _LCDHeartbeatCallback:] + 67
frame #10: 0x01663b8a QuartzCore`CA::Display::DisplayLinkItem::dispatch() + 48
frame #11: 0x01663a46 QuartzCore`CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 310
frame #12: 0x01663f6b QuartzCore`CA::Display::TimerDisplayLink::callback(__CFRunLoopTimer*, void*) + 123
frame #13: 0x0400dbd6 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 22
frame #14: 0x0400d5bd CoreFoundation`__CFRunLoopDoTimer + 1181
frame #15: 0x03ff5628 CoreFoundation`__CFRunLoopRun + 1816
frame #16: 0x03ff4ac3 CoreFoundation`CFRunLoopRunSpecific + 467
frame #17: 0x03ff48db CoreFoundation`CFRunLoopRunInMode + 123
frame #18: 0x0533b9e2 GraphicsServices`GSEventRunModal + 192
frame #19: 0x0533b809 GraphicsServices`GSEventRun + 104
frame #20: 0x01874d3b UIKit`UIApplicationMain + 1225
有没有人看过这个,或者知道原因可能是什么?
最佳答案
编辑:在使用此修复程序更多的时间后,我有时仍会看到该错误,因此这不是完整的修复程序(嗯……这总是一种hack)。找到后,我将使用实际的解决方案进行更新。
我在使用UIPageViewController时遇到了同样的错误。经过数小时的调试,我发现原因是在UIPageViewController的setViewControllers:direction:animated:completion:的完成处理程序中使用了UIView动画。
我不知道为什么在该阶段进行动画处理会导致断言错误(我没有在对UIPageViewController或其 subview Controller 进行动画处理),但是在主队列上用dispatch_async包装代码块可以解决此问题并避免崩溃。
关于ios - _UIQueuingScrollView抛出无效的参数异常,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/20004310/