最近在调试AppStore，点击get按钮，break断点，然后再thread continue。
在此之后AppStore，再点install按钮，没反应了，debugserver lldb貌似都正常
好像需要界面切换的时候，就会卡住，有碰到这个问题的吗？
(lldb) thread backtrace
* thread #1: tid = 0x110b, 0x318af944 StoreKitUI`-[SKUIItemOfferButton layoutSubviews], queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
* frame #0: 0x318af944 StoreKitUI`-[SKUIItemOfferButton layoutSubviews]
frame #1: 0x318b3d28 StoreKitUI`-[SKUIItemOfferButton _reloadForCurrentState:] + 796
frame #2: 0x318aeed4 StoreKitUI`-[SKUIItemOfferButton beginTrackingWithTouch:withEvent:] + 32
frame #3: 0x2b3b068a UIKit`-[UIControl touchesBegan:withEvent:] + 94
frame #4: 0x2b36c9cc UIKit`_UIGestureRecognizerUpdate + 10268
frame #5: 0x2b3a18e0 UIKit`-[UIWindow _sendGesturesForEvent:] + 784
frame #6: 0x2b3a11bc UIKit`-[UIWindow sendEvent:] + 524
frame #7: 0x2b37797c UIKit`-[UIApplication sendEvent:] + 196
frame #8: 0x2b5eb2e8 UIKit`_UIApplicationHandleEventFromQueueEvent + 13888
frame #9: 0x2b3763d8 UIKit`_UIApplicationHandleEventQueue + 1296
frame #10: 0x27e7cd56 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
frame #11: 0x27e7c166 CoreFoundation`__CFRunLoopDoSources0 + 218