os8 location authorization 错误.

今天在XCode6上打开以前写的地图时，给我报这个错 location authorization

去网上查了一番，才知道Xcode6对地图的设置稍有修改
在stackoverflow上找到了答案 iOS 8 : Location Services not working

我权当翻译一遍，记录一下.

解决这个问题通常两个步骤。

1 在工程info。plist文件中添加下面值，任意一个

>   <key>NSLocationWhenInUseUsageDescription</key>
    <string>The spirit of stack overflow is coders helping coders</string>

    <key>NSLocationAlwaysUsageDescription</key>
    <string>I have learned more on stack overflow than anything else</string>

value值随意填，会在请求用户受权时，显示给用户.

2 接着就在工程中加入这几行代码

if ([self.locationManager   respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
  [self.locationManager requestWhenInUseAuthorization];
}
    [self.locationManager startUpdatingLocation];

至于这个就看以前填的是哪一个，永久仍是每次都须要受权
requestWhenInUseAuthorization

另，英文还能够的推荐直接看这篇，讲解的很好Core Location Manager Changes in iOS 8