iOS 8 Mapview当前位置不会激发 [英] iOS 8 Mapview Current Location not fire

问题描述

MKMapview 当前用户位置未在 iOS-8 中触发，之前的 iOS-7 & iOS-6 工作正常。

MKMapview current user location not fire in iOS-8,previous iOS-7 & iOS-6 are working fine.

     self.mapView.delegate = self;
     self.mapView.showsUserLocation =YES; 

在此行中自动调用用户当前位置委托方法

In this line to call automatically the user current location delegate methods

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
}

但不会在 iOS-8 中触发。

推荐答案

在iOS8中，您需要在获取用户位置之前请求用户授权。

In iOS8, you need to request user's authorization before getting their location.

有两种请求：

- [CLLocationManager requestWhenInUseAuthorization] 只有在应用程序被唤醒时才能获取用户的位置。

-[CLLocationManager requestWhenInUseAuthorization] lets you get users' location only when the app is awaken.

- [CLLocationManager requestAlwaysAuthorization] 可让您获取用户的位置，即使它位于后台。

-[CLLocationManager requestAlwaysAuthorization] lets you get users' location even when it's in the background.

您可以相应地选择它们。

You can choose between them accordingly.

例如，在开始更新位置之前将其放入：

For example, put this before you start updating location:

// ask for authorization
CLLocationManager * locationManager = [[CLLocationManager alloc] init];
// check before requesting, otherwise it might crash in older version
if ([locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]) { 

     [locationManager requestWhenInUseAuthorization];

}

此外，不要忘记添加两个键

Furthermore, don't forget to add two keys

NSLocationWhenInUseUsageDescription

和

NSLocationAlwaysUsageDescription

进入你的info.plist。

into your info.plist.

将值保留为空以使用默认消息，或者您可以通过输入值来自定义自己的值。

Leave the values empty to use the default messages or you can customize your own by inputting the values.

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