提示用户去开启地图定位

    /**
     *  判断定位是否开启
     */
    if([CLLocationManager locationServicesEnabled] && [CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied)
    {
        NSLog(@"没打开");
        UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"温馨提示" message:@"为了更好的体验,请到设置->隐私->定位服务中开启!【陪你APP】定位服务,已便获取附近信息!" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
        [alertView show];
    }
    else
    {
        NSLog(@"打开");
    }

#pragma mark-UIAlertViewDelegate
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == 1)
    {
        NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
        if ([[UIApplication sharedApplication] canOpenURL:url])
        {
            [[UIApplication sharedApplication] openURL:url];
            
        }
    }
}