Attribution view change

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/*
 * Copyright 2020 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.esri.arcgisruntime.sample.attributionviewchange.databinding.ActivityMainBinding
import com.google.android.material.floatingactionbutton.FloatingActionButton

class MainActivity : AppCompatActivity() {

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

    private val mapView: MapView by lazy {
        activityMainBinding.mapView
    }

    private val fab: FloatingActionButton by lazy {
        activityMainBinding.fab
    }

    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 map with the topographic basemap
        val map = ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC)

        // set the map to be displayed in this view
        mapView.map = map
        mapView.setViewpoint(Viewpoint(47.495052, -121.786863, 100000.0))

        // create a FAB to respond to attribution bar
        fab.setOnClickListener {
            Toast.makeText(
                this@MainActivity,
                "Tap the attribution bar to expand it.",
                Toast.LENGTH_LONG
            ).show()
        }

        // set attribution bar listener
        mapView.addAttributionViewLayoutChangeListener { _, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom ->
            val heightDelta = oldBottom - bottom
            fab.y += heightDelta
            Toast.makeText(
                this@MainActivity,
                "new bounds [$left,$top,$right,$bottom] old bounds [$oldLeft,$oldTop,$oldRight,$oldBottom]",
                Toast.LENGTH_SHORT
            ).show()
        }
    }

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

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

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