1. 2.显示高德用户定位

1.1.1. 六、显示高德用户定位

显示定位蓝点

第1步：地图协议增加显示用户定位属性

......省略部分代码

/// 地图协议
public protocol MapViewProtocol: NSObjectProtocol {
    ......
    /// 设定是否显示定位图层
    var showsUserLocation: Bool { get set }
}
/// 高德地图
class GaodeMapView: NSObject, MapViewProtocol {
    ......
    /// 设定是否显示定位图层
    var showsUserLocation: Bool = false {
        didSet {
            mapView.showsUserLocation = showsUserLocation
        }
    }
}
/// 百度地图
class BaiduMapView: NSObject, MapViewProtocol {
    .......
    /// 设定是否显示定位图层
    var showsUserLocation: Bool = false {
        didSet {
            mapView.showsUserLocation = showsUserLocation
        }
    }
}

第2步：测试代码

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        ......
        if let mapView = factory?.getMapView(frame: view.bounds) {
            // 显示用户定位
            mapView.showsUserLocation = true
            view.addSubview(mapView.getView())
        }
    }
}
增加如上代码后，高德/百度都没有显示用户定位。

发现问题1:

[MAMapKit] 要在iOS 11及以上版本使用定位服务, 需要在Info.plist中添加NSLocationAlwaysAndWhenInUseUsageDescription和NSLocationWhenInUseUsageDescription字段。

解决办法：info.plist新增：

<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
<string>CQMapSDK需要使用定位服务</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>CQMapSDK需要使用定位服务</string>

发现问题2:

App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.

解决办法：info.plist新增：

<key>NSAppTransportSecurity</key>
<dict>
    <key>NSAllowsArbitraryLoads</key>
    <true/>
</dict>

发现问题3:

[MAMapKit] 要在iOS 11及以上版本使用后台定位服务, 需要实现mapViewRequireLocationAuth: 代理方法

解决办法：实现mapViewRequireLocationAuth

1.定义地图代理协议

/// 地图代理协议
public protocol MapViewDelegateProtocol: NSObjectProtocol {

}

public extension MapViewDelegateProtocol {

}

2.新增高德地图代理实现

import MAMapKit

/// 高德地图代理实现
class MAMapViewDelegateImpl: NSObject, MAMapViewDelegate {

    weak var delegate: MapViewDelegateProtocol?
    /**
     * @brief 当plist配置NSLocationAlwaysUsageDescription或者NSLocationAlwaysAndWhenInUseUsageDescription，并且[CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined，会调用代理的此方法。
     * 此方法实现调用后台权限API即可（ 该回调必须实现 [locationManager requestAlwaysAuthorization] ）; since 6.8.0
     * - Parameter locationManager:  地图的CLLocationManager。
     */
    func mapViewRequireLocationAuth(_ locationManager: CLLocationManager!) {
        locationManager.requestAlwaysAuthorization()
    }
}

3.高德地图实现增加代理

/// 高德地图
class GaodeMapView: NSObject, MapViewProtocol {

    ......
    private var mapDelegate = MAMapViewDelegateImpl()
    ......
    /// 地图代理
    var delegate: MapViewDelegateProtocol? {
        didSet {
            if let delegate = delegate {
                mapDelegate.delegate = delegate
                mapView.delegate = mapDelegate
            }
        }
    }
    ......
}

4.测试用户定位显示

class ViewController: UIViewController {

    override func viewDidLoad() {
        ......
        if let mapView = factory?.getMapView(frame: view.bounds) {
            ......
            // 设置代理
            mapView.delegate = self
            ......
        }
    }
}

现在使用高德地图就可以正常显示用户定位啦！