MKMapView崩潰setRegion

我想在地圖上顯示特定的地址。這是我的代碼。MKMapView崩潰setRegion

- (void)viewDidLoad{ 
[super viewDidLoad]; 

CLLocationCoordinate2D startCoord = CLLocationCoordinate2DMake(51.514302, 7.616798); 
MKCoordinateRegion adjustedRegion = [_map regionThatFits:MKCoordinateRegionMakeWithDistance(startCoord, 200.0, 200.0)]; 
adjustedRegion.span = MKCoordinateSpanMake(0.005, 0.005); 

[_map setRegion:adjustedRegion];

在模擬器它工作正常，但在我的iPad上它崩潰... 哪裏是我的錯嗎？

Last Exception Backtrace: 
0 CoreFoundation     0x33cbe3e2 __exceptionPreprocess + 158 
1 libobjc.A.dylib     0x3bb4e95e objc_exception_throw + 26 
2 CoreFoundation     0x33cbe0d0 -[NSException raise] + 4 
3 MapKit       0x34aec530 -[MKMapView setRegion:animated:] + 672 
4 MapKit       0x34aec64a __32-[MKMapView setRegion:animated:]_block_invoke_0 + 90 
5 MapKit       0x34ad6006 -[MKMapView _updateCenteredAttributesWithCoordinate:] + 122 
6 MapKit       0x34ad5f3a -[MKMapView _sizeDidChangeWithCenterCoordinate:] + 126 
7 MapKit       0x34ae8b58 -[MKMapView setBounds:] + 224 
8 UIKit       0x35cb2476 -[UIView(Geometry) _applyISEngineLayoutValues] + 246 
9 UIKit       0x35b3068a -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 138 
10 CoreFoundation     0x33cb9c1c __NSArrayChunkIterate + 364 
11 CoreFoundation     0x33cb2bb2 __NSArrayEnumerate + 590 
12 CoreFoundation     0x33c14e32 -[NSArray enumerateObjectsWithOptions:usingBlock:] + 58 
13 UIKit       0x35ae9096 -[UIView(Geometry) resizeSubviewsWithOldSize:] + 114 
14 UIKit       0x35f09da8 -[UIView(AdditionalLayoutSupport) _is_layout] + 112 
15 UIKit       0x35ad6ae0 -[UIView(Hierarchy) layoutSubviews] + 68 
16 UIKit       0x35ad08c2 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 254 
17 QuartzCore      0x3587c50e -[CALayer layoutSublayers] + 210 
18 QuartzCore      0x3587c0b0 CA::Layer::layout_if_needed(CA::Transaction*) + 456 
19 QuartzCore      0x358aaeca -[CALayer layoutIfNeeded] + 138 
20 UIKit       0x35b7a0dc -[UIViewController window:setupWithInterfaceOrientation:] + 204 
21 UIKit       0x35b792c6 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 3598 
22 UIKit       0x35b784aa -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 42 
23 UIKit       0x35b78434 -[UIWindow _setRotatableViewOrientation:duration:force:] + 64 
24 UIKit       0x35cadcb4 __57-[UIWindow _updateToInterfaceOrientation:duration:force:]_block_invoke_0 + 100 
25 UIKit       0x35b3667e -[UIWindow _updateToInterfaceOrientation:duration:force:] + 214 
26 UIKit       0x35b363c2 -[UIWindow setAutorotates:forceUpdateInterfaceOrientation:] + 690 
27 UIKit       0x35b35d2a -[UIViewController _tryBecomeRootViewControllerInWindow:] + 150 
28 UIKit       0x35b2ce86 -[UIWindow addRootViewControllerViewIfPossible] + 366 
29 UIKit       0x35b28af0 -[UIWindow _setHidden:forced:] + 360 
30 UIKit       0x35b6a1dc -[UIWindow makeKeyAndVisible] + 56 
31 UIKit       0x35b2d7fe -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1642 
32 UIKit       0x35b2582e -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 694 
33 UIKit       0x35acdd1a -[UIApplication handleEvent:withNewEvent:] + 1006 
34 UIKit       0x35acd7a8 -[UIApplication sendEvent:] + 68 
35 UIKit       0x35acd1ea _UIApplicationHandleEvent + 6194 
36 GraphicsServices    0x377c05f2 _PurpleEventCallback + 586 
37 GraphicsServices    0x377c0222 PurpleEventCallback + 30 
38 CoreFoundation     0x33c933e2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 30 
39 CoreFoundation     0x33c93386 __CFRunLoopDoSource1 + 134 
40 CoreFoundation     0x33c9220a __CFRunLoopRun + 1378 
41 CoreFoundation     0x33c05238 CFRunLoopRunSpecific + 352 
42 CoreFoundation     0x33c050c4 CFRunLoopRunInMode + 100 
43 UIKit       0x35b24468 -[UIApplication _run] + 664 
44 UIKit       0x35b212b4 UIApplicationMain + 1116 
45 AD HOK       0x000bcd80 main (main.m:16) 
46 libdyld.dylib     0x3bf7bb1c start + 0 


Thread 0 name: Dispatch queue: com.apple.main-thread 
Thread 0 Crashed: 
0 libsystem_kernel.dylib   0x3c042350 __pthread_kill + 8 
1 libsystem_c.dylib    0x3bfb8fb2 pthread_kill + 54 
2 libsystem_c.dylib    0x3bff5366 abort + 90 
3 libc++abi.dylib     0x3b59ddda abort_message + 70 
4 libc++abi.dylib     0x3b59b094 _ZL17default_terminatev + 20 
5 libobjc.A.dylib     0x3bb4ea58 _ZL15_objc_terminatev + 144 
6 libc++abi.dylib     0x3b59b118 _ZL19safe_handler_callerPFvvE + 76 
7 libc++abi.dylib     0x3b59b1b0 std::terminate() + 16 
8 libc++abi.dylib     0x3b59c626 __cxa_rethrow + 90 
9 libobjc.A.dylib     0x3bb4e9b0 objc_exception_rethrow + 8 
10 CoreFoundation     0x33c0529c CFRunLoopRunSpecific + 452 
11 CoreFoundation     0x33c050c4 CFRunLoopRunInMode + 100 
12 UIKit       0x35b24468 -[UIApplication _run] + 664 
13 UIKit       0x35b212b4 UIApplicationMain + 1116 
14 AD HOK       0x000bcd80 main (main.m:16) 
15 libdyld.dylib     0x3bf7bb1c start + 0 

Thread 1: 
0 libsystem_kernel.dylib   0x3c042d98 __workq_kernreturn + 8 
1 libsystem_c.dylib    0x3bf90ad6 _pthread_workq_return + 14 
2 libsystem_c.dylib    0x3bf907f2 _pthread_wqthread + 362 
3 libsystem_c.dylib    0x3bf90680 start_wqthread + 4 

Thread 2 name: Dispatch queue: com.apple.libdispatch-manager 
Thread 2: 
0 libsystem_kernel.dylib   0x3c0325d0 kevent64 + 24 
1 libdispatch.dylib    0x3bf6dd22 _dispatch_mgr_invoke + 806 
2 libdispatch.dylib    0x3bf69374 _dispatch_mgr_thread + 32 

Thread 3: 
0 libsystem_kernel.dylib   0x3c042d98 __workq_kernreturn + 8 
1 libsystem_c.dylib    0x3bf90ad6 _pthread_workq_return + 14 
2 libsystem_c.dylib    0x3bf907f2 _pthread_wqthread + 362 
3 libsystem_c.dylib    0x3bf90680 start_wqthread + 4 

Thread 4 name: WebThread 
Thread 4: 
0 libsystem_kernel.dylib   0x3c031e30 mach_msg_trap + 20 
1 libsystem_kernel.dylib   0x3c031fd0 mach_msg + 48 
2 CoreFoundation     0x33c932b6 __CFRunLoopServiceMachPort + 126 
3 CoreFoundation     0x33c9202c __CFRunLoopRun + 900 
4 CoreFoundation     0x33c05238 CFRunLoopRunSpecific + 352 
5 CoreFoundation     0x33c050c4 CFRunLoopRunInMode + 100 
6 WebCore       0x39be0390 _ZL12RunWebThreadPv + 440 
7 libsystem_c.dylib    0x3bf9b0de _pthread_start + 306 
8 libsystem_c.dylib    0x3bf9afa4 thread_start + 4 

Thread 5: 
0 libsystem_kernel.dylib   0x3c042d98 __workq_kernreturn + 8 
1 libsystem_c.dylib    0x3bf90ad6 _pthread_workq_return + 14 
2 libsystem_c.dylib    0x3bf907f2 _pthread_wqthread + 362 
3 libsystem_c.dylib    0x3bf90680 start_wqthread + 4 

Thread 0 crashed with ARM Thread State (32-bit): 
    r0: 0x00000000 r1: 0x00000000  r2: 0x00000000  r3: 0x3db31524 
    r4: 0x00000006 r5: 0x3db31b78  r6: 0x210aa354  r7: 0x2fd459d4 
    r8: 0x210aa330 r9: 0x00000300  r10: 0x00000000  r11: 0x7ff80000 
    ip: 0x00000148 sp: 0x2fd459c8  lr: 0x3bfb8fb7  pc: 0x3c042350 
    cpsr: 0x00000010

來源

2013-02-08 Dennis Schöneborn

設備上的確切錯誤消息是什麼？您在模擬器中測試的是哪個iOS版本以及該設備的版本是什麼？ – Anna 2013-02-08 14:27:26

異常類型：EXC_CRASH（SIGABRT）異常代碼：0x0000000000000000，0x0000000000000000 崩潰的線程：0 i在設備6.1和模擬器6.1上使用。 – 2013-02-09 12:14:28

你可以發佈堆棧跟蹤（編輯到你的問題）？如果可能的話，在設備上運行它時，逐步調試調試器中的代碼。你確定它在這個代碼上崩潰而不是其他地方？ – Anna 2013-02-09 12:44:16

目前尚不清楚爲什麼你所要求的地圖適合，當你最終重新設置跨度爲區域明確反正區域。此外，在佈局完成之前，地圖對此問題沒有有意義的答案。這可能是它崩潰的原因，因爲該區域未被正確定義。

從你的代碼，它看起來像你只是想這樣做：

- (void)viewDidLoad{ 
    [super viewDidLoad]; 

    CLLocationCoordinate2D startCoord = CLLocationCoordinate2DMake(51.514302, 7.616798); 
    [_map setRegion:MKCoordinateRegionMakeWithDistance(startCoord, 200.0, 200.0) animated:NO]; 
}

我認爲這是簡單得多，而且應該正常工作的設備上。希望有所幫助。

來源

2013-02-09 16:11:51

MKMapView崩潰setRegion

回答

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