ios - 崩溃 NSProxy doesNotRecognizeSelector :

Question

Fabric 告诉我很多用户在我的应用程序中遇到以下崩溃

如果展开，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 是有些东西不适用于 WatchKit。在我的应用程序中，有一个类已准备好将数据传输到 watch 套件应用程序，但此时在构建阶段没有提及 watch 应用程序和 watch 套件扩展。

我类的代码是

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

看起来您的应用正在使用 NSProxy 子类作为 WCSession 的委托(delegate)。是这样吗？如果是这样，请尝试将其更改为 NSObject 子类。