Slip 10 - C) Create an Android Application to perform Zoom In, Zoom Out operation and display Satellite view, on Google Map.

Solution:

AndroidManifest.xml

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

<uses-permission android:name="android.permission.INTERNET"/>

In the app/build.gradle file, add the following dependency:

implementation 'com.google.android.gms:play-services-maps:17.0.0'

 activity_main.xml

<com.google.android.gms.maps.MapView

    android:id="@+id/map_view"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:apiKey="@string/google_maps_api_key"

    android:clickable="true"

    android:enabled="true" />

MainActivity.java

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.Menu;

import android.view.MenuItem;

import android.widget.Toast;

import com.google.android.gms.maps.CameraUpdateFactory;

import com.google.android.gms.maps.GoogleMap;

import com.google.android.gms.maps.MapView;

import com.google.android.gms.maps.OnMapReadyCallback;

import com.google.android.gms.maps.model.CameraPosition;

import com.google.android.gms.maps.model.LatLng;

import com.google.android.gms.maps.model.MapStyleOptions;

public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {

    private static final float DEFAULT_ZOOM = 15f;

    private MapView mapView;

    private GoogleMap googleMap;

    private boolean isSatelliteViewEnabled = false;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mapView = findViewById(R.id.map_view);

        mapView.onCreate(savedInstanceState);

        mapView.getMapAsync(this);

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.menu_main, menu);

        return true;

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        int id = item.getItemId();

        if (id == R.id.action_zoom_in) {

            googleMap.animateCamera(CameraUpdateFactory.zoomIn());

            return true;

        } else if (id == R.id.action_zoom_out) {

            googleMap.animateCamera(CameraUpdateFactory.zoomOut());

            return true;

        } else if (id == R.id.action_toggle_satellite) {

            if (isSatelliteViewEnabled) {

                googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);

                isSatelliteViewEnabled = false;

            } else {

                googleMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);

                isSatelliteViewEnabled = true;

            }

            return true;

        }

        return super.onOptionsItemSelected(item);

    }

    @Override

    public void onMapReady(GoogleMap map) {

        googleMap = map;

        googleMap.setMapStyle(MapStyleOptions.loadRawResourceStyle(this, R.raw.map_style));

        if (googleMap != null) {

            googleMap.setMyLocationEnabled(true);

            googleMap.getUiSettings().setMyLocationButtonEnabled(true);

            LatLng latLng = new LatLng(37.7749, -122.4194);

            CameraPosition cameraPosition = new CameraPosition.Builder()

                    .target(latLng)

                    .zoom(DEFAULT_ZOOM)

                    .build();

            googleMap.moveCamera