Open mobile scene package

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Opens and displays a scene from a Mobile Scene Package (.mspk).

Image of open mobile scene package

Use case

A mobile scene package is an archive containing the data (specifically, basemaps and features), used to display an offline 3D scene.

How to use the sample

When the sample opens, it will automatically display the Scene in the Mobile Scene Package.

Since this sample works with a local .mspk, you will need to download the file to your device.

How it works

  1. Create a MobileScenePackage using the path to the local .mspk file.
  2. Call MobileScenePackage.loadAsync and check for any errors.
  3. When the MobileScenePackage is loaded, obtain the first Scene using mobileScenePackage.getScenes().get(0)
  4. Create a SceneView and call sceneView.setView to display the scene from the package.

Relevant API

  • MobileScenePackage
  • SceneView

Offline Data

  1. Download the data from ArcGIS Online.
  2. Open your command prompt and navigate to the folder where you extracted the contents of the data from step 1.
  3. Push the data into the scoped storage of the sample app:

adb push philadelphia.mspk /Android/data/com.esri.arcgisruntime.sample.openmobilescenepackage/files/philadelphia.mspk

Tags

offline, scene

Sample Code

MainActivity.java
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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.sample.openmobilescenepackage;

import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import com.esri.arcgisruntime.loadable.LoadStatus;
import com.esri.arcgisruntime.mapping.MobileScenePackage;
import com.esri.arcgisruntime.mapping.view.Camera;
import com.esri.arcgisruntime.mapping.view.SceneView;

public class MainActivity extends AppCompatActivity {

  private static final String TAG = MainActivity.class.getSimpleName();
  private SceneView mSceneView;
  // objects that implement Loadable must be class fields to prevent being garbage collected before loading
  private MobileScenePackage mMobileScenePackage;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mSceneView = findViewById(R.id.sceneView);

    // create a mobile scene package from a path to the mspk
    mMobileScenePackage = new MobileScenePackage(getExternalFilesDir(null) + getString(R.string.philadelphia_mspk));
    mMobileScenePackage.addDoneLoadingListener(() -> {
      // check if the mobile scene package loaded and has a scene
      if (mMobileScenePackage.getLoadStatus() == LoadStatus.LOADED && !mMobileScenePackage.getScenes().isEmpty()) {
        // set the scene view's scene to the first in the mobile scene package
        mSceneView.setScene(mMobileScenePackage.getScenes().get(0));
        // set the scene view's camera
        mSceneView.setViewpointCamera(new Camera(39.9625,-75.1771,310,139,75,0.0));
      } else {
        String error = "Failed to load mobile scene package: " + mMobileScenePackage.getLoadError().getMessage();
        Toast.makeText(this, error, Toast.LENGTH_LONG).show();
        Log.e(TAG, error);
      }
    });
    mMobileScenePackage.loadAsync();
  }

  @Override
  protected void onPause() {
    mSceneView.pause();
    super.onPause();
  }

  @Override
  protected void onResume() {
    super.onResume();
    mSceneView.resume();
  }

  @Override
  protected void onDestroy() {
    mSceneView.dispose();
    super.onDestroy();
  }
}

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