放大带有MKPlacemark的MKMapView时崩溃 [英] Crash when zooming into a MKMapView with a MKPlacemark

问题描述

我正在尝试向地图添加地标.地标是根据完全不在通讯簿之外的地址构建的.

I'm trying to add a placemark to a map. The placemark is built from an address completely outside of Address Book.

我的地标出现在地图上，但是当我尝试捏放大时会崩溃:

My placemark is appearing on the map, but when I try to pinch to zoom in I get a crash:

*** -[CALayer objectForKey:]: unrecognized selector sent to instance 0x4569dc0
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[CALayer objectForKey:]: unrecognized selector sent to instance 0x4569dc0'

这是我设置地址的方式:

Here's how I'm setting up the address:

id theAddress = [NSDictionary dictionaryWithObjectsAndKeys:
                 [NSString stringWithFormat: @"%@ - %@", theAddress1 ? theAddress1 : @"", theAddress2 ? theAddress2 : @""], kABPersonAddressStreetKey,
                 theCity ? theCity : @"", kABPersonAddressCityKey,
                 theState ? theState : @"", kABPersonAddressStateKey,
                 theZip ? theZip : @"", kABPersonAddressZIPKey,
                 theCountry ? theCountry : @"", kABPersonAddressCountryKey,
                 nil];

我使用地址记录中的值查找地址的坐标(从

I use the values in the address record to find the coordinate for the address (learned how to do this from this question & answer), then I add it to my map:

[mapView addAnnotation: [[[MKPlacemark alloc] initWithCoordinate: theCoordinate
                                               addressDictionary: theAddress] autorelease]];

崩溃肯定似乎是由此MKPlacemark引起的，就像我注释掉addAnnotation语句一样，代码也不会崩溃.

The crash definitely seems to be caused by this MKPlacemark, as if I comment out the addAnnotation statement the code doesn't crash.

知道发生了什么吗?我想我的地址记录还不够，但是错误消息确实没有帮助.

Any idea what's going on? I'm guessing I haven't got enough in the address record, but the error message is really unhelpful.

推荐答案

您在某处过度释放了NSDictionary对象.找到方法如下:

You're over-releasing an NSDictionary object somewhere. Here's how you find it:

在项目"菜单下，选择编辑活动可执行文件".在参数"选项卡中，将一个项目添加到要在环境中设置的变量:"块中，其名称为NSZombieEnabled且值为YES.

Under the Project menu, select 'Edit Active Executable'. In the Arguments tab, add an item to the "Variables to be set in the environment:" block with the name NSZombieEnabled and the value YES.

快乐的僵尸狩猎.

这篇关于放大带有MKPlacemark的MKMapView时崩溃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！