ZhiHua

NSMutableDictionary赋值野指针闪退

3

**Describe the bug** A clear and concise description of what the bug is. NSMutableDictionary赋值野指针闪退 **To Reproduce** Steps to reproduce the behavior: NSMutableDictionary *dict = [NSMutableDictionary dictionary]; __unsafe_unretained UIView *testObj =...

Crash when scrolling back and forth!

2

![Uploading 屏幕快照 2019-06-15 上午9.28.41.png…]() ![Uploading 屏幕快照 2019-06-15 上午9.28.47.png…]()

Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x00000001b290e4ac object_isClass + 16 1 Foundation 0x00000001b2faa5f8 KVO_IS_RETAINING_ALL_OBSERVERS_OF_THIS_OBJECT_IF_IT_CRASHES_AN_OBSERVER_WAS_OVERRELEASED_OR_SMASHED + 44 2 Foundation 0x00000001b2fa8120 NSKeyValueWillChangeWithPerThreadPendingNotifications + 272 3 AVFoundation 0x00000001bce0aa14...

我运行demo，player初始化为nil，即便更换地址也是nil。

切换前置摄像头会奔溃，大概原因是相机输入为空，mediaType 为audio， _haveStartedSession为NO。 但是不知的怎么修改。。。