Attribution view change

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/* Copyright 2018 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.attributionviewchange;

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

import androidx.appcompat.app.AppCompatActivity;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.Viewpoint;
import com.esri.arcgisruntime.mapping.view.MapView;
import com.google.android.material.floatingactionbutton.FloatingActionButton;

public class MainActivity extends AppCompatActivity {

  private MapView mMapView;

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

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

    // inflate MapView from layout
    mMapView = findViewById(R.id.mapView);
    // create a map with a web mercator basemap
    ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);
    // set the map to be displayed in this view
    mMapView.setMap(map);
    mMapView.setViewpoint(new Viewpoint(47.495052, -121.786863, 100000.0));

    // create a FAB to respond to attribution bar
    FloatingActionButton mFab = findViewById(R.id.floatingActionButton);
    mFab.setOnClickListener(v -> Toast.makeText(this, "Tap the attribution bar to expand it.", Toast.LENGTH_LONG).show());

    // set attribution bar listener
    mMapView.addAttributionViewLayoutChangeListener(
        (v, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom) -> {
          int heightDelta = oldBottom - bottom;
          mFab.setY(mFab.getY() + heightDelta);
          Toast.makeText(MainActivity.this, "new bounds [" + left + ',' + top + ',' + right + ',' + bottom + ']' +
              " old bounds [" + oldLeft + ',' + oldTop + ',' + oldRight + ',' + oldBottom + ']', Toast.LENGTH_SHORT)
              .show();
        });
  }

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

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

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