kotlin实现高德地图代码

以下是 Kotlin 实现高德地图的代码示例：

// 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

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

    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
        val aMap = mapView.map

        // 添加标记
        val latLng = LatLng(39.906901,116.397972)
        val markerOptions = MarkerOptions()
            .position(latLng)
            .title("Marker Title")
            .snippet("Marker Snippet")
        aMap.addMarker(markerOptions)
    }

    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)
    }
}

需要注意的是，这里的 `MapView` 是高德地图 SDK 中提供的地图视图，需要在布局文件中添加：

<com.amap.api.maps.MapView
    android:id="@+id/mapView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

还需要在 `AndroidManifest.xml` 文件中申请高德地图 SDK 的权限：

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />