/
MainActivity.java
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/
MainActivity.java
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package com.github.lassana.osmdroid_shapes_sample;
import android.Manifest;
import android.content.pm.PackageManager;
import android.graphics.BitmapFactory;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import android.widget.Toast;
import com.github.lassana.osmdroid_shape_extension.BitmapPolygon;
import com.github.lassana.osmdroid_shape_extension.PolygonCentroid;
import org.osmdroid.api.IMapController;
import org.osmdroid.bonuspack.overlays.Marker;
import org.osmdroid.bonuspack.overlays.Polygon;
import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapView;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
public static final String EXTRA_GEO_DATA_INDEX = "MainActivity.EXTRA_GEO_DATA_INDEX";
public static final String EXTRA_USE_BITMAPPOLYGON = "MainActivity.EXTRA_USE_BITMAPPOLYGON";
public static final String EXTRA_SHOW_CENTROID = "MainActivity.EXTRA_SHOW_CENTROID";
private final int REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS = 0x124;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayShowHomeEnabled(true);
actionBar.setDisplayHomeAsUpEnabled(true);
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
checkPermissions();
}
final MapView map = (MapView) findViewById(R.id.mapView);
if (map == null) {
throw new RuntimeException("MapView instance not presented");
}
map.setTileSource(TileSourceFactory.DEFAULT_TILE_SOURCE);
map.setBuiltInZoomControls(true);
map.setMultiTouchControls(true);
if (getIntent().hasExtra(EXTRA_GEO_DATA_INDEX)) {
final int index = getIntent().getIntExtra(EXTRA_GEO_DATA_INDEX, 0);
final SampleGeoData geoData = SampleGeoData.values()[index];
final IMapController mapController = map.getController();
mapController.setZoom(geoData.getZoomLevel());
mapController.setCenter(geoData.getCenter());
final boolean useBitmapPolygon = getIntent().getBooleanExtra(EXTRA_USE_BITMAPPOLYGON, false);
final Polygon polygon;
if (useBitmapPolygon) {
final BitmapPolygon bitmapPolygon = new BitmapPolygon(this);
bitmapPolygon.setPatternBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.pattern));
polygon = bitmapPolygon;
} else {
polygon = new Polygon(this);
}
polygon.setPoints(geoData.getData());
polygon.setFillColor(geoData.getFillColor());
polygon.setStrokeColor(geoData.getStrokeColor());
polygon.setStrokeWidth(geoData.getStrokeWidth());
map.getOverlays().add(polygon);
final boolean showCentroid = getIntent().getBooleanExtra(EXTRA_SHOW_CENTROID, false);
if (showCentroid) {
final Marker marker = new Marker(map);
final GeoPoint centroid = new PolygonCentroid(geoData.getData()).centroid();
marker.setPosition(centroid);
marker.setAnchor(Marker.ANCHOR_CENTER, Marker.ANCHOR_BOTTOM);
marker.setInfoWindow(null);
map.getOverlays().add(marker);
}
map.invalidate();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
finish();
return true;
}
return super.onOptionsItemSelected(item);
}
private void checkPermissions() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
List<String> permissions = new ArrayList<>();
String message = "OSMDroid permissions:";
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
permissions.add(Manifest.permission.ACCESS_FINE_LOCATION);
message += "\nStorage access to store map tiles.";
}
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
permissions.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);
message += "\nLocation to show user location.";
}
if (!permissions.isEmpty()) {
Toast.makeText(this, message, Toast.LENGTH_LONG).show();
String[] params = permissions.toArray(new String[permissions.size()]);
requestPermissions(params, REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS);
}
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
switch (requestCode) {
case REQUEST_CODE_ASK_MULTIPLE_PERMISSIONS: {
Map<String, Integer> perms = new HashMap<>();
perms.put(Manifest.permission.ACCESS_FINE_LOCATION, PackageManager.PERMISSION_GRANTED);
perms.put(Manifest.permission.WRITE_EXTERNAL_STORAGE, PackageManager.PERMISSION_GRANTED);
for (int i = 0; i < permissions.length; i++) {
perms.put(permissions[i], grantResults[i]);
}
Boolean location = perms.get(Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED;
Boolean storage = perms.get(Manifest.permission.WRITE_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_GRANTED;
if (location && storage) {
Toast.makeText(MainActivity.this, "All permissions granted", Toast.LENGTH_SHORT).show();
} else if (location) {
Toast.makeText(this, "Storage permission is required to store map tiles to reduce data usage " +
"and for offline usage.", Toast.LENGTH_LONG).show();
} else if (storage) {
Toast.makeText(this, "Location permission is required to show the user's location on map.",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(this, "Storage permission is required to store map tiles to reduce " +
"data usage and for offline usage." +
"\nLocation permission is required to show the user's location on map.",
Toast.LENGTH_SHORT).show();
}
}
break;
default:
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
}