Java tutorial
/* * Copyright (C) 2012 The Android Open Source Project * * 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.costrella.cemetery.activity; import android.Manifest; import android.content.Intent; import android.content.pm.PackageManager; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.CheckBox; import android.widget.Toast; import com.example.mapdemo.PermissionUtils; import com.example.mapdemo.R; import com.google.android.gms.maps.CameraUpdateFactory; import com.google.android.gms.maps.GoogleMap; import com.google.android.gms.maps.OnMapReadyCallback; import com.google.android.gms.maps.SupportMapFragment; import com.google.android.gms.maps.model.BitmapDescriptorFactory; import com.google.android.gms.maps.model.GroundOverlay; import com.google.android.gms.maps.model.LatLng; import com.google.android.gms.maps.model.Marker; import com.google.android.gms.maps.model.MarkerOptions; /** * This shows how to add a ground overlay to a map. */ public class MapActivity extends AppCompatActivity implements GoogleMap.OnMyLocationButtonClickListener, OnMapReadyCallback, ActivityCompat.OnRequestPermissionsResultCallback { private GoogleMap mMap; private static final LatLng RACLAWICKI = new LatLng(50.075525, 19.952921); private static final int LOCATION_PERMISSION_REQUEST_CODE = 1; private Marker sector; private GroundOverlay mGroundOverlayRotated; private boolean mPermissionDenied = false; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.cemetery1); SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager() .findFragmentById(R.id.map); mapFragment.getMapAsync(this); } @Override public void onMapReady(GoogleMap map) { mMap = map; mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(RACLAWICKI, 11)); mMap.setContentDescription("???"); goToSector(); enableMyLocation(); } private void goToSector() { Intent intent = getIntent(); Bundle bundle = intent.getExtras(); if (bundle != null) { LatLng latLng = (LatLng) bundle.get("personLatLng"); String name = (String) bundle.get("personName"); String deathDate = (String) bundle.get("personDeathDate"); mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, 18)); sector = mMap.addMarker(new MarkerOptions().position(latLng).title(name).snippet(deathDate) .icon(BitmapDescriptorFactory.fromResource(R.drawable.arrow)).infoWindowAnchor(0.5f, 0.5f)); } } private void enableMyLocation() { if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) { // Permission to access the location is missing. PermissionUtils.requestPermission(this, LOCATION_PERMISSION_REQUEST_CODE, Manifest.permission.ACCESS_FINE_LOCATION, true); } else if (mMap != null) { // Access to the location has been granted to the app. mMap.setMyLocationEnabled(true); } } public void goToPersonsList(View view) { Intent intent = new Intent(this, PersonsListActivity.class); startActivity(intent); } ////////////////////////////////////////OVERIDES /** * Toggles the clickability of the smaller, rotated overlay based on the state of the View that * triggered this call. * This callback is defined on the CheckBox in the layout for this Activity. */ public void toggleClickability(View view) { if (mGroundOverlayRotated != null) { mGroundOverlayRotated.setClickable(((CheckBox) view).isChecked()); } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { if (requestCode != LOCATION_PERMISSION_REQUEST_CODE) { return; } if (PermissionUtils.isPermissionGranted(permissions, grantResults, Manifest.permission.ACCESS_FINE_LOCATION)) { // Enable the my location layer if the permission has been granted. enableMyLocation(); } else { // Display the missing permission error dialog when the fragments resume. mPermissionDenied = true; } } @Override protected void onResumeFragments() { super.onResumeFragments(); if (mPermissionDenied) { // Permission was not granted, display error dialog. showMissingPermissionError(); mPermissionDenied = false; } } private void showMissingPermissionError() { PermissionUtils.PermissionDeniedDialog.newInstance(true).show(getSupportFragmentManager(), "dialog"); } @Override public boolean onMyLocationButtonClick() { Toast.makeText(this, "MyLocation button clicked", Toast.LENGTH_SHORT).show(); // Return false so that we don't consume the event and the default behavior still occurs // (the camera animates to the user's current position). return false; } }