我有这个信标应用程序 - 就像其他人的信标应用程序一样 - 监控一定数量的区域，一旦它进入一个区域，它就会开始测距 3 秒，然后停止测距并继续监控。这一切都发生在后台。它将最近的信标的数据保存到本地数据库，并将数据发送到服务器。
奇怪的是，这可以正常工作大约 3-4 天，然后突然停止工作。当我再次打开应用程序查看发生了什么时，应用程序似乎崩溃了。
崩溃的类型为 SIGABRT。
你们中有人经历过吗？
这是最相关的代码：
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
locationManager = CLLocationManager()
locationManager!.delegate = self
locationManager!.pausesLocationUpdatesAutomatically = true
if(application.respondsToSelector("registerUserNotificationSettings:")) {
application.registerUserNotificationSettings(
UIUserNotificationSettings(
forTypes: UIUserNotificationType.Alert | UIUserNotificationType.Sound,
categories: nil
)
)
}
return true
}
一旦用户按下“开始”按钮，就会调用 startLocationManager()：
func startLocationManager() {
if(locationManager!.respondsToSelector("requestAlwaysAuthorization")) {
locationManager!.requestAlwaysAuthorization()
}
bluetoothCentral = CBCentralManager(delegate: self, queue: nil)
}
func centralManagerDidUpdateState(central: CBCentralManager!) {
// Determine the state of the peripheral
if (bluetoothCentral!.state == CBCentralManagerState.PoweredOff) {
NSLog("CoreBluetooth BLE hardware is powered off");
}
else if (bluetoothCentral!.state == CBCentralManagerState.PoweredOn) {
NSLog("CoreBluetooth BLE hardware is powered on and ready");
let prefs:NSUserDefaults = NSUserDefaults.standardUserDefaults()
let uuidString = prefs.stringForKey("UUID") as String!
let companyId: Int = prefs.integerForKey("COMPANY_ID") as Int
let major: CLBeaconMajorValue = CLBeaconMajorValue(companyId)
let uuid : NSUUID? = NSUUID(UUIDString: uuidString as String)
beaconRegionGeneral = CLBeaconRegion(proximityUUID: NSUUID(UUIDString: uuidString), identifier: "general")
for index in 1...20 {
beaconRegions.append(CLBeaconRegion(proximityUUID: NSUUID(UUIDString: uuidString), major: CLBeaconMajorValue(index), identifier: String(index)))
}
startRanging()
}
else if (bluetoothCentral!.state == CBCentralManagerState.Unauthorized) {
NSLog("CoreBluetooth BLE state is unauthorized");
}
else if (bluetoothCentral!.state == CBCentralManagerState.Unknown) {
NSLog("CoreBluetooth BLE state is unknown");
}
else if (bluetoothCentral!.state == CBCentralManagerState.Unsupported) {
NSLog("CoreBluetooth BLE hardware is unsupported on this platform");
}
}
func startRanging() {
if isRanging() {
stopRanging()
count = 1
locationManager!.startRangingBeaconsInRegion(beaconRegionGeneral)
setIsRanging(true)
} else {
locationManager!.startRangingBeaconsInRegion(beaconRegionGeneral)
setIsRanging(true)
}
}
func stopRanging() {
locationManager!.stopRangingBeaconsInRegion(beaconRegionGeneral)
setIsRanging(false)
}
func startMonitoring() {
if (!isMonitoring()) {
for beaconRegion in beaconRegions {
locationManager!.startMonitoringForRegion(beaconRegion)
}
setIsMonitoring(true)
}
}
func stopMonitoring() {
if (isMonitoring()) {
for beaconRegion in beaconRegions {
locationManager!.stopMonitoringForRegion(beaconRegion)
}
setIsMonitoring(false)
}
}
func locationManager(manager: CLLocationManager!, didRangeBeacons beacons: [AnyObject]!, inRegion region: CLBeaconRegion!) {
println("Ranged \(beacons.count) beacons")
NSLog("didRangeBeacons");
var max: Float = -1000
var closestBeacon: SmartBeacon = SmartBeacon()
for beacon in beacons {
println("Major \(beacon.major), minor \(beacon.minor), rssi \(beacon.rssi)")
var beaconHasAlreadyBeenFound = false
if (beacon.rssi != 0) {
if (smartBeacons.count > 0) {
for foundSmartBeacon in smartBeacons {
if (foundSmartBeacon.minor == beacon.minor) {
foundSmartBeacon.signalReadings.append(beacon.rssi)
break
}
var smartBeacon = SmartBeacon()
smartBeacon.major = beacon.major as Int
smartBeacon.minor = beacon.minor as Int
smartBeacon.signalReadings.append(beacon.rssi)
smartBeacons.append(smartBeacon)
}
} else {
var smartBeacon = SmartBeacon()
smartBeacon.major = beacon.major as Int
smartBeacon.minor = beacon.minor as Int
smartBeacon.signalReadings.append(beacon.rssi)
smartBeacons.append(smartBeacon)
}
}
}
if (count == numberOfScans) {
stopRanging()
startMonitoring()
let db: DAO = DAO()
if (smartBeacons.count < 1) {
if !newActivity {
// Save the stopTime of the last activity to now
saveDataOfLastActivity()
}
saveData(-1)
NSLog("saveData -1")
count = 1
uploadLatestData()
} else {
for smartBeacon in smartBeacons {
if smartBeacon.getAverageSignal() > max {
max = smartBeacon.getAverageSignal()
closestBeacon = smartBeacon
}
}
if !newActivity {
// Save the stopTime of the last activity to now
saveDataOfLastActivity()
}
saveData(closestBeacon.major)
NSLog("saveData +1")
count = 1
uploadLatestData()
}
smartBeacons.removeAll(keepCapacity: false)
// Inform UI
NSNotificationCenter.defaultCenter().postNotificationName("NotificationIdentifier", object: nil)
} else {
count++
}
}
func locationManager(manager: CLLocationManager!, didEnterRegion region: CLRegion!) {
NSLog("Did enter region")
sendLocalNotificationWithMessage("Did enter region \(region.identifier)", playSound: true)
startRanging()
}
func locationManager(manager: CLLocationManager!, didExitRegion region: CLRegion!) {
NSLog("Did exit region")
sendLocalNotificationWithMessage("Did exit region \(region.identifier)", playSound: true)
startRanging()
}
这是符号化的崩溃日志。该应用程序称为“时间云”。
Incident Identifier: 2DA26380-152E-4C2B-B1FA-AC6DAE522212
CrashReporter Key: 22878ad468dbc64ddf02b8e896e910e5c4bbfe59
Hardware Model: iPad4,1
Process: Time-Cloud [2981]
Path: /private/var/mobile/Containers/Bundle/Application/3408977A-362E-46DE-B78E-6887B0241D21/Time-Cloud.app/Time-Cloud
Identifier: com.time-cloud.Time-Cloud
Version: 1 (0.8.8)
Code Type: ARM-64 (Native)
Parent Process: launchd [1]
Date/Time: 2015-01-26 12:32:21.576 +0100
Launch Time: 2015-01-26 12:32:21.146 +0100
OS Version: iOS 8.1 (12B410)
Report Version: 105
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 0
Last Exception Backtrace:
0 CoreFoundation 0x184761e48 __exceptionPreprocess + 132
1 libobjc.A.dylib 0x1951640e4 objc_exception_throw + 60
2 CoreFoundation 0x184761d08 +[NSException raise:format:arguments:] + 116
3 Foundation 0x1855e5554 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 112
4 CoreLocation 0x184eae574 0x184ea4000 + 42356
5 Time-Cloud 0x100061500 Time_Cloud.AppDelegate.startRanging (Time_Cloud.AppDelegate)() -> () (AppDelegate.swift:201)
6 Time-Cloud 0x100061594 @objc Time_Cloud.AppDelegate.startRanging (Time_Cloud.AppDelegate)() -> () (AppDelegate.swift:0)
7 Time-Cloud 0x100066608 Time_Cloud.AppDelegate.locationManager (Time_Cloud.AppDelegate)(ObjectiveC.CLLocationManager!, didExitRegion : ObjectiveC.CLRegion!) -> () (AppDelegate.swift:331)
8 Time-Cloud 0x1000667b0 @objc Time_Cloud.AppDelegate.locationManager (Time_Cloud.AppDelegate)(ObjectiveC.CLLocationManager!, didExitRegion : ObjectiveC.CLRegion!) -> () (AppDelegate.swift:0)
9 CoreLocation 0x184eb02e4 0x184ea4000 + 49892
10 CoreLocation 0x184eac1cc 0x184ea4000 + 33228
11 CoreLocation 0x184ea6f00 0x184ea4000 + 12032
12 CoreFoundation 0x18471a124 __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 20
13 CoreFoundation 0x18471922c __CFRunLoopDoBlocks + 312
14 CoreFoundation 0x18471742c __CFRunLoopRun + 696
15 CoreFoundation 0x1846451f4 CFRunLoopRunSpecific + 396
16 GraphicsServices 0x18d7975a4 GSEventRunModal + 168
17 UIKit 0x188f76784 UIApplicationMain + 1488
18 Time-Cloud 0x100068878 top_level_code (AppDelegate.swift:0)
19 Time-Cloud 0x100068a30 main (AppDelegate.swift:0)
20 libdyld.dylib 0x1957d2a08 start + 4
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x00000001958eb270 __pthread_kill + 8
1 libsystem_pthread.dylib 0x0000000195989224 pthread_kill + 108
2 libsystem_c.dylib 0x0000000195862b14 abort + 108
3 libc++abi.dylib 0x0000000194949414 abort_message + 112
4 libc++abi.dylib 0x0000000194968b88 default_terminate_handler() + 300
5 libobjc.A.dylib 0x00000001951643bc _objc_terminate() + 124
6 libc++abi.dylib 0x0000000194965bb0 std::__terminate(void (*)()) + 12
7 libc++abi.dylib 0x0000000194965738 __cxa_rethrow + 140
8 libobjc.A.dylib 0x0000000195164290 objc_exception_rethrow + 40
9 CoreFoundation 0x00000001846452a0 CFRunLoopRunSpecific + 568
10 GraphicsServices 0x000000018d7975a0 GSEventRunModal + 164
11 UIKit 0x0000000188f76780 UIApplicationMain + 1484
12 Time-Cloud 0x0000000100068874 top_level_code (AppDelegate.swift:0)
13 Time-Cloud 0x0000000100068a2c main (AppDelegate.swift:0)
14 libdyld.dylib 0x00000001957d2a04 start + 0
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x00000001958d0c94 kevent64 + 8
1 libdispatch.dylib 0x00000001957b897c _dispatch_mgr_invoke + 272
2 libdispatch.dylib 0x00000001957ab3b0 _dispatch_mgr_thread + 48
Thread 2:
0 libsystem_kernel.dylib 0x00000001958ebc78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000195985390 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000195984fa4 start_wqthread + 0
Thread 3 name: Dispatch queue: com.apple.networking.connection.0x1006389a0
Thread 3:
0 libsystem_platform.dylib 0x000000019597da80 OSAtomicDequeue + 12
1 libsystem_malloc.dylib 0x0000000195926450 _nano_malloc_check_clear + 108
2 libsystem_malloc.dylib 0x00000001959250d8 nano_calloc + 76
3 libsystem_malloc.dylib 0x0000000195919958 malloc_zone_calloc + 120
4 libsystem_malloc.dylib 0x00000001959198b8 calloc + 60
5 libobjc.A.dylib 0x000000019516fc20 class_createInstance + 76
6 libdispatch.dylib 0x00000001957a93e8 _os_object_alloc_realized + 36
7 libdispatch.dylib 0x00000001957aabc0 dispatch_source_create + 160
8 libsystem_dnssd.dylib 0x00000001958a543c DNSServiceSetDispatchQueue + 156
9 libsystem_network.dylib 0x000000019594d4a4 tcp_connection_host_start + 848
10 libsystem_network.dylib 0x0000000195935234 tcp_connection_start_host + 292
11 libsystem_network.dylib 0x000000019593e898 tcp_connection_start_direct_connect + 1068
12 libsystem_network.dylib 0x000000019593e030 tcp_connection_handle_reachability_changed + 3196
13 libsystem_network.dylib 0x000000019593b580 __tcp_connection_start_block_invoke + 340
14 libdispatch.dylib 0x00000001957a93a8 _dispatch_call_block_and_release + 20
15 libdispatch.dylib 0x00000001957a9368 _dispatch_client_callout + 12
16 libdispatch.dylib 0x00000001957b34bc _dispatch_queue_drain + 1212
17 libdispatch.dylib 0x00000001957ac470 _dispatch_queue_invoke + 128
18 libdispatch.dylib 0x00000001957b5220 _dispatch_root_queue_drain + 660
19 libdispatch.dylib 0x00000001957b6758 _dispatch_worker_thread3 + 104
20 libsystem_pthread.dylib 0x00000001959852e0 _pthread_wqthread + 812
21 libsystem_pthread.dylib 0x0000000195984fa4 start_wqthread + 0
Thread 4 name: Dispatch queue: com.apple.CoreLocation.ConnectionClient.0x174141340.events
Thread 4:
0 libsystem_kernel.dylib 0x00000001958d0ed0 semaphore_timedwait_trap + 8
1 libdispatch.dylib 0x00000001957b69f4 _dispatch_semaphore_wait_slow + 164
2 CoreLocation 0x0000000184ea6e08 0x184ea4000 + 11784
3 CoreLocation 0x0000000184eaaf8c 0x184ea4000 + 28556
4 CoreLocation 0x0000000184edd97c 0x184ea4000 + 235900
5 libxpc.dylib 0x00000001959acd1c _xpc_connection_call_event_handler + 64
6 libxpc.dylib 0x00000001959aac78 _xpc_connection_mach_event + 2156
7 libdispatch.dylib 0x00000001957a943c _dispatch_client_callout4 + 12
8 libdispatch.dylib 0x00000001957acb54 _dispatch_mach_msg_invoke + 488
9 libdispatch.dylib 0x00000001957b32a0 _dispatch_queue_drain + 672
10 libdispatch.dylib 0x00000001957ac07c _dispatch_mach_invoke + 132
11 libdispatch.dylib 0x00000001957b32a0 _dispatch_queue_drain + 672
12 libdispatch.dylib 0x00000001957ac470 _dispatch_queue_invoke + 128
13 libdispatch.dylib 0x00000001957b32a0 _dispatch_queue_drain + 672
14 libdispatch.dylib 0x00000001957ac470 _dispatch_queue_invoke + 128
15 libdispatch.dylib 0x00000001957b5220 _dispatch_root_queue_drain + 660
16 libdispatch.dylib 0x00000001957b6758 _dispatch_worker_thread3 + 104
17 libsystem_pthread.dylib 0x00000001959852e0 _pthread_wqthread + 812
18 libsystem_pthread.dylib 0x0000000195984fa4 start_wqthread + 0
Thread 5 name: Dispatch queue: com.apple.root.default-qos
Thread 5:
0 libsystem_kernel.dylib 0x00000001958d0eb8 semaphore_wait_trap + 8
1 libdispatch.dylib 0x00000001957b6a4c _dispatch_semaphore_wait_slow + 252
2 CFNetwork 0x00000001841294e0 CFURLConnectionSendSynchronousRequest + 284
3 CFNetwork 0x0000000184149bc8 +[NSURLConnection sendSynchronousRequest:returningResponse:error:] + 116
4 Time-Cloud 0x0000000100039080 Time_Cloud.SendDataToCloudTask.send (Time_Cloud.SendDataToCloudTask)([[Swift.String : Swift.String]]) -> () (SendDataToCloudTask.swift:113)
5 Time-Cloud 0x0000000100035664 Time_Cloud.ViewController.(uploadLatestData (Time_Cloud.ViewController) -> () -> ()).(closure #1) (ViewController.swift:844)
6 Time-Cloud 0x000000010000f490 reabstraction thunk helper from @callee_owned () -> (@unowned ()) to @callee_unowned @objc_block () -> (@unowned ()) (SettingsViewController.swift:0)
7 libdispatch.dylib 0x00000001957a93a8 _dispatch_call_block_and_release + 20
8 libdispatch.dylib 0x00000001957a9368 _dispatch_client_callout + 12
9 libdispatch.dylib 0x00000001957b5408 _dispatch_root_queue_drain + 1148
10 libdispatch.dylib 0x00000001957b6758 _dispatch_worker_thread3 + 104
11 libsystem_pthread.dylib 0x00000001959852e0 _pthread_wqthread + 812
12 libsystem_pthread.dylib 0x0000000195984fa4 start_wqthread + 0
Thread 6:
0 libsystem_kernel.dylib 0x00000001958ebc78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000195985390 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000195984fa4 start_wqthread + 0
Thread 7:
0 libsystem_kernel.dylib 0x00000001958ebc78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000195985390 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000195984fa4 start_wqthread + 0
Thread 8 name: com.apple.NSURLConnectionLoader
Thread 8:
0 libsystem_kernel.dylib 0x00000001958d0e7c mach_msg_trap + 8
1 libsystem_kernel.dylib 0x00000001958d0cf4 mach_msg + 68
2 CoreFoundation 0x00000001847195c8 __CFRunLoopServiceMachPort + 196
3 CoreFoundation 0x000000018471751c __CFRunLoopRun + 936
4 CoreFoundation 0x00000001846451f0 CFRunLoopRunSpecific + 392
5 CFNetwork 0x00000001841496a0 +[NSURLConnection(Loader) _resourceLoadLoop:] + 436
6 Foundation 0x0000000185631c08 __NSThread__main__ + 1068
7 libsystem_pthread.dylib 0x0000000195987e7c _pthread_body + 160
8 libsystem_pthread.dylib 0x0000000195987dd8 _pthread_start + 156
9 libsystem_pthread.dylib 0x0000000195984fac thread_start + 0
Thread 9:
0 libsystem_kernel.dylib 0x00000001958ebc78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000195985390 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000195984fa4 start_wqthread + 0
Thread 0 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x00000001700e0737
x4: 0x0000000194969dfd x5: 0x000000016fdff3e0 x6: 0x000000000000006e x7: 0x0000000000000f80
x8: 0x0000000008000000 x9: 0x0000000004000000 x10: 0x0000000000000000 x11: 0x0000000000000000
x12: 0x0000000000000000 x13: 0x0000000000000000 x14: 0x0000000000000002 x15: 0x0000000000000000
x16: 0x0000000000000148 x17: 0x0000000000000000 x18: 0x0000000000000000 x19: 0x0000000000000006
x20: 0x00000001994aa310 x21: 0x0000000199492ce8 x22: 0x00000001741402d0 x23: 0x0000000195de67c0
x24: 0x0000000000000001 x25: 0x00000001741402c0 x26: 0x00000001994910a8 x27: 0x0000000000000001
x28: 0x0000000000000000 fp: 0x000000016fdff340 lr: 0x0000000195989228
sp: 0x000000016fdff320 pc: 0x00000001958eb270 cpsr: 0x00000000