Question

我尝试使用coreLocation在Apple Watch上获取用户当前位置。每当我运行-[CLLocationManager requestLocation]时，应用程序退出并发出以下错误。

2016-02-07 16:38:39.392 Placescope Apple Watch Extension[6255:1471552]     *** Assertion failure in -[CLLocationManager requestLocation], /BuildRoot/Library/Caches/com.apple.xbs/Sources/CoreLocationFramework_Sim/CoreLocation-1861.3.25.31/Framework/CoreLocation/CLLocationManager.m:816
2016-02-07 16:38:39.395 Placescope Apple Watch Extension[6255:1471552] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Delegate must respond to locationManager:didUpdateLocations:'
*** First throw call stack:
(
    0   CoreFoundation                      0x00bb9fc4 __exceptionPreprocess + 180
    1   libobjc.A.dylib                     0x00671df4 objc_exception_throw + 50
    2   CoreFoundation                      0x00bb9e5a +[NSException raise:format:arguments:] + 138
    3   Foundation                          0x0029a008 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 118
    4   CoreLocation                        0x0013a4f9 CLClientGetCapabilities + 12683
    5   Placescope Apple Watch Extension    0x0002edbf -[Recommendations awakeWithContext:] + 447
    6   WatchKit                            0x000c2930 _WKInterfaceControllerCreateClass + 482
    7   WatchKit                            0x000af002 __48-[SPRemoteInterface handlePlist:fromIdentifier:]_block_invoke_2 + 470
    8   WatchKit                            0x000aebb9 __48-[SPRemoteInterface handlePlist:fromIdentifier:]_block_invoke + 1245
    9   libdispatch.dylib                   0x0415a71b _dispatch_call_block_and_release + 15
    10  libdispatch.dylib                   0x041783fd _dispatch_client_callout + 14
    11  libdispatch.dylib                   0x04160fbe _dispatch_main_queue_callback_4CF + 689
    12  CoreFoundation                      0x00b066fe __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 14
    13  CoreFoundation                      0x00ac49a4 __CFRunLoopRun + 2356
    14  CoreFoundation                      0x00ac3db6 CFRunLoopRunSpecific + 470
    15  CoreFoundation                      0x00ac3bcb CFRunLoopRunInMode + 123
    16  Foundation                          0x0022dac1 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 308
    17  Foundation                          0x002d499d -[NSRunLoop(NSRunLoop) run] + 82
    18  libxpc.dylib                        0x0448206f _xpc_objc_main + 486
    19  libxpc.dylib                        0x04484dce xpc_main + 215
    20  Foundation                          0x003fe3cd service_connection_handler + 0
    21  PlugInKit                           0x035f1232 -[PKService run] + 582
    22  WatchKit                            0x000d1549 main + 146
    23  libdyld.dylib                       0x0419dad5 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

这是我的代码：

locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
[locationManager requestWhenInUseAuthorization];
[locationManager requestLocation];

如果您有更好的方式来获取用户的位置，请告诉我。

Answer 1

根据错误消息'Delegate must respond to locationManager:didUpdateLocations:'，我必须在我的委托中实施locationManager:didUpdateLocations:和locationManager:didFailWithError:才能使用requestLocation。

Answer 2

我不知道我们是否可以在Apple Watch中使用位置管理器。我认为我们需要回到父应用程序以使用手表连接来获取CLLocation。

Apple Watch coreLocation错误***断言失败 - [CLLocationManager requestLocation]

2 个答案: