4
我正在使用ExternalAccessory
FW,並且能夠將數據傳遞到外圍設備。ExternalAccessory和NSUserDefaults奇怪的問題
我面臨着一個奇怪的現象,試圖在一定值保存到NSUserDefaults
我得到這個(貌似),不相關的錯誤時:
UISupportedExternalAccessoryProtocols = com.xxxxx.yyy.zz
2013-07-24 17:01:39.181 myApp[791:907] ERROR - opening session failed
2013-07-24 17:01:39.182 myApp[791:907] ERROR - /SourceCache/ExternalAccessory/ExternalAccessory-213.3/EASession.m:-[EASession dealloc] - 137 unable to close session for _accessory=0x2088cdb0 and sessionID=65536
並與外圍設備連接已經死了。
寫入到NSUserDefaults
代碼:
NSInteger transactionId = [[NSUserDefaults standardUserDefaults] integerForKey:kTransactionId];
transactionId = transactionId % NSIntegerMax + 1;
[[NSUserDefaults standardUserDefaults] setInteger:transactionId forKey:kTransactionId];
[[NSUserDefaults standardUserDefaults] synchronize];
如果我註釋掉[[NSUserDefaults standardUserDefaults] setInteger:transactionId forKey:kTransactionId];
一切工作就好了... ...
任何想法?