View point cloud data offline

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/*
 * Copyright 2019 Esri
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package com.esri.arcgisruntime.samples.viewpointclouddataoffline

import android.os.Bundle
import android.util.Log
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment
import com.esri.arcgisruntime.layers.PointCloudLayer
import com.esri.arcgisruntime.loadable.LoadStatus
import com.esri.arcgisruntime.mapping.ArcGISScene
import com.esri.arcgisruntime.mapping.ArcGISTiledElevationSource
import com.esri.arcgisruntime.mapping.BasemapStyle
import com.esri.arcgisruntime.mapping.Surface
import com.esri.arcgisruntime.mapping.view.Camera
import com.esri.arcgisruntime.mapping.view.SceneView
import com.esri.arcgisruntime.samples.viewpointclouddataoffline.databinding.ActivityMainBinding

class MainActivity : AppCompatActivity() {

    private val TAG = MainActivity::class.java.simpleName

    private val activityMainBinding by lazy {
        ActivityMainBinding.inflate(layoutInflater)
    }

    private val sceneView: SceneView by lazy {
        activityMainBinding.sceneView
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(activityMainBinding.root)

        // authentication with an API key or named user is required to access basemaps and other
        // location services
        ArcGISRuntimeEnvironment.setApiKey(BuildConfig.API_KEY)

        // create a surface with an elevation source
        val surface = Surface().apply {
            elevationSources.add(ArcGISTiledElevationSource(getString(R.string.elevation_source_url)))
        }

        // create a scene with the surface
        val sceneWithSurface = ArcGISScene(BasemapStyle.ARCGIS_IMAGERY).apply {
            baseSurface = surface
        }

        // create the scene view with an initial viewpoint and scene
        sceneView.apply {
            // create a camera and initial camera position
            setViewpointCamera(
                Camera(
                    32.7321157,
                    -117.150072,
                    452.282774,
                    25.481533,
                    78.0945859,
                    0.0
                )
            )
            // add the scene with the surface
            scene = sceneWithSurface
        }

        // create a PointCloudLayer by passing the URI of the scene layer package to the constructor
        val pointCloudLayer =
            PointCloudLayer(getExternalFilesDir(null)?.path + getString(R.string.scene_layer_package_location))
        // add the PointCloudLayer to the scene
        sceneView.scene.operationalLayers.add(pointCloudLayer)

        pointCloudLayer.addDoneLoadingListener {
            if (pointCloudLayer.loadStatus != LoadStatus.LOADED) {
                val error = "Point cloud layer failed to load: ${pointCloudLayer.loadError.message}"
                Log.e(TAG, error)
                Toast.makeText(this, error, Toast.LENGTH_LONG).show()
            }
        }
    }

    override fun onResume() {
        super.onResume()
        sceneView.resume()
    }

    override fun onPause() {
        sceneView.pause()
        super.onPause()
    }

    override fun onDestroy() {
        sceneView.dispose()
        super.onDestroy()
    }
}