问题
When I save a single datum to the iCloud, it works fine and when I need to save number of data to iCloud, I put the same code steps to save inside the for loop.
When I tried saving number of data to iCloud, the following signal is received and the app is hanging infinitely. The signal received area is in the below image.
and the crash area points at
How I can debug this crash? Can someone help me with explantion ASAP
回答1:
The documentation for that method says, "Important: Do not call this method from your app’s main thread." The warning goes on to say that doing so may cause a deadlock. It sounds as if that's the condition you have.
来源：https://stackoverflow.com/questions/13529180/received-signal-sigstop-on-saving-to-icloud