drawInRect:withAttributes死于“发送到deallocation实例的消息”。

I am updating an app for iOS 7. One of the changes is switching to the new drawInRect:withAttributes function instead of the deprecated drawInRect:withFont... This was working fine on the iOS 7 beta, but today after upgrading to the latest iOS 7 version, the app crashes on the line:I am updating an app for iOS 7. One of the chan