class MCPoll: NSObject { private var pollTimer: NSTimer! func startPoll(){ pollTimer = NSTimer.scheduledTimerWithTimeInterval(0.2, target: self, selector: Selector("poll"), userInfo: nil, repeats: false) } private func poll(){ } } "poll" is a no-argument function, but xcode tips:
2015-03-24 11:08:20.478 mobile[7897:1138436] -[mobile.MCPoll poll]: unrecognized selector sent to instance 0x174276940
Other classes in my project is using "NSTimer",But no problems.
this crash log:
Last Exception Backtrace: 0 CoreFoundation 0x186e96530 __exceptionPreprocess + 132 1 libobjc.A.dylib 0x197e6c0e4 objc_exception_throw + 60 2 CoreFoundation 0x186e9d5f4 -[NSObject(NSObject) doesNotRecognizeSelector:] + 220 3 CoreFoundation 0x186e9a3ac ___forwarding___ + 928 4 CoreFoundation 0x186d9ec4c _CF_forwarding_prep_0 + 92 5 Foundation 0x187d8f514 __NSFireTimer + 92 6 CoreFoundation 0x186e4ec20 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28 7 CoreFoundation 0x186e4e8d0 __CFRunLoopDoTimer + 888 8 CoreFoundation 0x186e4c31c __CFRunLoopRun + 1372 9 CoreFoundation 0x186d791f4 CFRunLoopRunSpecific + 396 10 GraphicsServices 0x19019b6fc GSEventRunModal + 168 11 UIKit 0x18b70a10c UIApplicationMain + 1488 12 MeChat 0x1001016dc top_level_code (AppDelegate.swift:0) 13 MeChat 0x10010171c main (AppDelegate.swift:0) 14 libdyld.dylib 0x1984eaa08 start + 4 
