kotlin实现高德地图的合规接口

为了遵守高德地图合规规定，需要在地图使用前申请授权，并在合适的时机显示授权弹窗，以下是 Kotlin 实现高德地图合规接口的代码示例：

// 引入高德地图 SDK
import com.amap.api.maps.MapView
import com.amap.api.maps.model.LatLng
import com.amap.api.maps.model.MarkerOptions
import com.amap.api.maps.AMap
import com.amap.api.maps.CameraUpdateFactory
import com.amap.api.maps.model.MyLocationStyle

// 在 Activity 中初始化地图
class MapActivity : AppCompatActivity(), AMap.OnMyLocationChangeListener {
    private lateinit var mapView: MapView
    private lateinit var aMap: AMap

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_map)

        mapView = findViewById(R.id.mapView)
        mapView.onCreate(savedInstanceState)

        // 获取地图对象
        aMap = mapView.map

        // 申请授权
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1)
        } else {
            // 显示授权弹窗
            aMap.isMyLocationEnabled = true
            val myLocationStyle = MyLocationStyle()
            myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_SHOW)
            aMap.myLocationStyle = myLocationStyle
            aMap.setOnMyLocationChangeListener(this)
        }
    }

    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
        if (requestCode == 1 && grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // 显示授权弹窗
            aMap.isMyLocationEnabled = true
            val myLocationStyle = MyLocationStyle()
            myLocationStyle.myLocationType(MyLocationStyle.LOCATION_TYPE_SHOW)
            aMap.myLocationStyle = myLocationStyle
            aMap.setOnMyLocationChangeListener(this)
        }
    }

    override fun onResume() {
        super.onResume()
        mapView.onResume()
    }

    override fun onPause() {
        super.onPause()
        mapView.onPause()
    }

    override fun onDestroy() {
        super.onDestroy()
        mapView.onDestroy()
    }

    override fun onSaveInstanceState(outState: Bundle) {
        super.onSaveInstanceState(outState)
        mapView.onSaveInstanceState(outState)
    }

    override fun onMyLocationChange(location: Location?) {
        if (location != null) {
            val latLng = LatLng(location.latitude, location.longitude)
            val markerOptions = MarkerOptions()
                .position(latLng)
                .title("Marker Title")
                .snippet("Marker Snippet")
            aMap.addMarker(markerOptions)
            aMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, 18f))
        }
    }
}

需要注意的是，这里使用了 `MyLocationStyle` 来设置定位蓝点的样式，同时实现了 `OnMyLocationChangeListener` 接口来监听定位变化，并在定位成功后添加标记并将地图移动到当前位置。