Question

我有一个使用RubyMotion构建的iOS应用程序（使用Promotion框架）。我正在尝试加载一个只是谷歌地图视图（GMSMapView）的视图 - 他们的example even，它在设备或模拟器上第一次安装应用程序时加载正常，但会立即崩溃一次之后;或者即使该屏幕关闭然后重新打开而不关闭应用程序。

代码只是Google的“Hello World”示例，而我正在敲打着我的脑袋。我的代码如下所示，除了尝试将其作为促销屏幕之外，我还尝试通过继承新的UIViewController并获得相同的错误。

我的代码：

class MapScreen < PM::Screen

  def on_load
    camera = GMSCameraPosition.cameraWithLatitude(-33.868, longitude: 151.2086, zoom: 6)
    mapView = GMSMapView.mapWithFrame(CGRectZero, camera:camera)

    marker = GMSMarker.new
    marker.position = camera.target
    marker.snippet = "Hello World"
    marker.appearAnimation = 1
    marker.map = mapView

    mapView.delegate = self
    # self.view = mapView
    self.view.addSubview(mapView)
  end

end

这是崩溃日志的相关部分：

Crashed Thread:        2  Dispatch queue: com.google.Maps.TileDataCacheQueue

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000656d69546e77

Thread 0:: Dispatch queue: NSPersistentStoreCoordinator 0x11c34be80
0   libobjc.A.dylib                 0x000000010177302c objc_msgSend + 44
1   CoreData                        0x00000001020e09d3 -[NSSQLModel _generateModel:error:] + 1363
2   CoreData                        0x0000000101fc5481 -[NSSQLModel initWithManagedObjectModel:configurationName:retainHashHack:brokenHashVersion:] + 305
3   CoreData                        0x0000000101fc4823 -[NSSQLCore initWithPersistentStoreCoordinator:configurationName:URL:options:] + 819
4   CoreData                        0x00000001020ac77d __91-[NSPersistentStoreCoordinator addPersistentStoreWithType:configuration:URL:options:error:]_block_invoke + 1069
5   CoreData                        0x00000001020b9c30 gutsOfBlockToNSPersistentStoreCoordinatorPerform + 192
6   libdispatch.dylib               0x0000000106e50964 _dispatch_client_callout + 8
7   libdispatch.dylib               0x0000000106e39fca _dispatch_barrier_sync_f_invoke + 76
8   CoreData                        0x00000001020ab245 _perform + 197
9   CoreData                        0x0000000101fc42e1 -[NSPersistentStoreCoordinator addPersistentStoreWithType:configuration:URL:options:error:] + 337
10  com.mwc.mwcpa2015               0x000000010002a341 -[GMSCacheStorage initWithName:modelBundle:modelName:directory:reset:] + 669
11  com.mwc.mwcpa2015               0x00000001001c3574 -[GMSServices initWithDisplayLink:resourceCache:] + 3617
12  com.mwc.mwcpa2015               0x00000001001c1d1f __43-[GMSAsyncInitServices sharedInitWithSync:]_block_invoke_2 + 105
13  com.mwc.mwcpa2015               0x00000001001c1c89 __43-[GMSAsyncInitServices sharedInitWithSync:]_block_invoke + 354
14  com.mwc.mwcpa2015               0x00000001001c1ae3 -[GMSAsyncInitServices sharedInitWithSync:] + 326
15  com.mwc.mwcpa2015               0x00000001001c191b -[GMSAsyncInitServices initSync] + 69
16  com.mwc.mwcpa2015               0x00000001001c25e0 +[GMSServices sharedServicesSync] + 183
17  com.mwc.mwcpa2015               0x00000001001b7814 -[GMSMapView sharedInitWithServices:camera:] + 162
18  com.mwc.mwcpa2015               0x00000001001b7112 -[GMSMapView initWithFrame:camera:] + 121
19  com.mwc.mwcpa2015               0x00000001001b6fb1 +[GMSMapView mapWithFrame:camera:] + 104


Thread 2 Crashed:: Dispatch queue: com.google.Maps.TileDataCacheQueue
0   libobjc.A.dylib                 0x000000010175bcc1 class_getSuperclass + 11
1   com.mwc.mwcpa2015               0x00000001009e0af6 rb_objc_convert_immediate + 118
2   com.mwc.mwcpa2015               0x00000001002b14a9 vm_ocval_to_rval + 153
3   com.mwc.mwcpa2015               0x00000001002fee18 __unnamed_71 + 24
4   com.mwc.mwcpa2015               0x000000010003010e __47-[GMSTileDataCache startWithCompletionHandler:]_block_invoke57 + 639
5   com.mwc.mwcpa2015               0x000000010003496b -[GMSTileDataCache fetchTilesImmediateWithPredicate:sortDescriptor:completionHandler:] + 351
6   com.mwc.mwcpa2015               0x000000010002fd78 __47-[GMSTileDataCache startWithCompletionHandler:]_block_invoke + 412
7   libdispatch.dylib               0x0000000106e35f16 _dispatch_call_block_and_release + 12
8   libdispatch.dylib               0x0000000106e50964 _dispatch_client_callout + 8
9   libdispatch.dylib               0x0000000106e3acb4 _dispatch_queue_drain + 435
10  libdispatch.dylib               0x0000000106e3a9a3 _dispatch_queue_invoke + 217
11  libdispatch.dylib               0x0000000106e3cc85 _dispatch_root_queue_drain + 534
12  libdispatch.dylib               0x0000000106e3dd59 _dispatch_worker_thread3 + 98
13  libsystem_pthread.dylib         0x00000001071b9637 _pthread_wqthread + 729
14  libsystem_pthread.dylib         0x00000001071b740d start_wqthread + 13

这让我发疯，任何帮助都会非常感激！

Answer 1

您的标记正在丢失其参考并收集垃圾。尝试一下伊娃：

class MapScreen < PM::Screen

  def on_load
    camera = GMSCameraPosition.cameraWithLatitude(-33.868, longitude: 151.2086, zoom: 6)
    mapView = GMSMapView.mapWithFrame(CGRectZero, camera:camera)

    @marker = GMSMarker.new
    @marker.position = camera.target
    @marker.snippet = "Hello World"
    @marker.appearAnimation = 1
    @marker.map = mapView

    mapView.delegate = self
    # self.view = mapView
    self.view.addSubview(mapView)
  end

end

Google地图iOS SDK在RubyMotion中崩溃

1 个答案: