崩溃NSProxy doesNotRecognizeSelector：

Question

Fabric告诉我很多用户在我的应用程序中发生了以下崩溃

crash http://i65.tinypic.com/30uqnvn.png

如果我展开，我会看到以下堆栈

 Fatal Exception: NSInvalidArgumentException
 0  CoreFoundation                 0x18ef201c0 __exceptionPreprocess
 1  libobjc.A.dylib                0x18d95855c objc_exception_throw
 2  CoreFoundation                 0x18ef20108 -[NSException initWithCoder:]
 3  Foundation                     0x18f9eb714 -[NSProxy doesNotRecognizeSelector:]
 4  CoreFoundation                 0x18ef24278 ___forwarding___
 5  CoreFoundation                 0x18ee1e59c _CF_forwarding_prep_0
 6  WatchConnectivity              0x1a39caff0 __57-[WCSession onqueue_completeSwitchTask:withSessionState:]_block_invoke
 7  Foundation                     0x18f9e17e4 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
 8  Foundation                     0x18f926358 -[NSBlockOperation main]
 9  Foundation                     0x18f916954 -[__NSOperationInternal _start:]
 10 Foundation                     0x18f9e3b90 __NSOQSchedule_f
 11 libdispatch.dylib              0x18dda91c0 _dispatch_client_callout
 12 libdispatch.dylib              0x18ddb7444 _dispatch_queue_serial_drain
 13 libdispatch.dylib              0x18ddac9a8 _dispatch_queue_invoke
 14 libdispatch.dylib              0x18ddb938c _dispatch_root_queue_drain
 15 libdispatch.dylib              0x18ddb90ec _dispatch_worker_thread3
 16 libsystem_pthread.dylib        0x18dfb12c8 _pthread_wqthread
 17 libsystem_pthread.dylib        0x18dfb0db4 start_wqthread

我的假设是有一些东西不能与WatchKit一起使用。在我的应用程序中，有一个类已准备好将数据传输到监视工具包应用程序，但在构建阶段的这个时刻，没有参考监视应用程序和监视工具包扩展。

我班上的代码是

import Foundation
import WatchConnectivity

class WatchManager: NSObject
{
    func setLanguage(localization: String)
    {
        if #available(iOS 9.0, *) {
            if WCSession.isSupported() {
                let watchSession = WCSession.defaultSession()
                watchSession.delegate = self
                watchSession.activateSession()
                if watchSession.paired && watchSession.watchAppInstalled {
                    watchSession.transferUserInfo(["localization": localization])
                }
            }
        }
    }
}

extension WatchManager: WCSessionDelegate
{
    @available(iOS 9.3, *)
    func session(session: WCSession, activationDidCompleteWithState activationState: WCSessionActivationState, error: NSError?)
    { }

    @available(iOS 9.0, *)
    func sessionDidBecomeInactive(session: WCSession)
    { }

    @available(iOS 9.0, *)
    func sessionDidDeactivate(session: WCSession)
    { }
}

有什么建议吗？

Answer 1

您的应用看起来正在使用NSProxy子类作为WCSession的委托。是这样的吗？如果是这样，请尝试将其更改为NSObject子类。