ios8 – MKMapView在iOS 8或更高版本中不呈现

我在iOS 8.x.x中的MKMapView中遇到问题.应用程序工作正常iOS 7.x.x,但不在iOS 8.x.x中.在设备上,它只显示注释,但没有映射.

我试图强制重置我的设备,但没有运气.

我在info.plist中@L_616_1@了这两个值,这是iOS 8及以上版本的要求

<key>NSLOCATIOnAlwaysUsageDescription</key>
<String>LOCATIOn is required to find out where you are</String>
<key>NSLOCATIOnWhenInUseUsageDescription</key>
<String>LOCATIOn is required to find out where you are</String>

并在我的Viewdidload中@L_616_1@了这行代码.

// check for iOS 8. Without this guard the code will crash with "unkNown SELEctor" on iOS 7.
    if ([self.LOCATIOnManager respondsToSELEctor:@SELEctor(requestWhenInUseAuthorization)])
    {
        [self.LOCATIOnManager requestWhenInUseAuthorization];
        //[self.LOCATIOnManager requestAlwaysAuthorization];
        self.mymapView.showsUserLOCATIOn = YES;
    }

通过在info.plist和上述代码行中@L_616_1@这两个值,我可以在用户位置的地图上显示用户的位置和注释,但Map是Blank.

类似于这篇文章：
MKMapView showing blank screen in iOS 8