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added the switch to 3-D and current location functions
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RonZhang724 committed Nov 7, 2018
1 parent 6ebc81b commit 407a298
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Showing 4 changed files with 213 additions and 39 deletions.
1 change: 1 addition & 0 deletions app/build.gradle
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Expand Up @@ -20,6 +20,7 @@ android {

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
//noinspection GradleCompatible
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.google.android.gms:play-services-maps:16.0.0'
implementation 'com.google.android.gms:play-services-location:16.0.0'
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11 changes: 4 additions & 7 deletions app/src/main/AndroidManifest.xml
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@@ -1,21 +1,18 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.androidmap">
<!--
The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
Google Maps Android API v2, but you must specify either coarse or fine
location permissions for the 'MyLocation' functionality.
-->

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

<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
android:theme="@style/AppTheme"
tools:ignore="GoogleAppIndexingWarning">
<!--
The API key for Google Maps-based APIs is defined as a string resource.
(See the file "res/values/google_maps_api.xml").
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218 changes: 186 additions & 32 deletions app/src/main/java/com/example/androidmap/MapsActivity.java
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@@ -1,20 +1,33 @@
package com.example.androidmap;

import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.location.Criteria;
import android.location.Location;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Switch;
import android.widget.Toast;

import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.location.places.PlaceDetectionClient;
import com.google.android.gms.location.places.Places;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
Expand All @@ -30,16 +43,26 @@

import com.android.volley.RequestQueue;
import com.android.volley.toolbox.Volley;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;

import org.json.JSONException;
import org.json.JSONObject;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback, GoogleMap.OnMyLocationButtonClickListener {


private GoogleMap mMap;
private PlaceAutocompleteFragment placeAutoComplete;
private String API_KEY = "AIzaSyCYjArGK8qyUKkNEICYzs_P4ZH4Xc2k0-Q";
private Switch switchButton;
boolean mLocationPermissionGranted = false;
private static final int PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION = 1;
PlaceDetectionClient mPlaceDetectionClient;
FusedLocationProviderClient mFusedLocationProviderClient;
private Location mLastKnownLocation;
private LatLng currentLL;
private float tilt = 0;



@Override
protected void onCreate(Bundle savedInstanceState) {
Expand All @@ -49,23 +72,15 @@ protected void onCreate(Bundle savedInstanceState) {

// The auto-complete search bar learned from this tutorial:
// https://stackoverflow.com/questions/45107806/autocomplete-search-bar-in-google-maps
placeAutoComplete = (PlaceAutocompleteFragment) getFragmentManager().findFragmentById(R.id.place_autocomplete);
PlaceAutocompleteFragment placeAutoComplete = (PlaceAutocompleteFragment) getFragmentManager().findFragmentById(R.id.place_autocomplete);
placeAutoComplete.setOnPlaceSelectedListener(new PlaceSelectionListener() {
@Override
public void onPlaceSelected(Place place) {
Log.d("Maps", "Place selected: " + place.getName());
LatLng selectedLL = place.getLatLng();
currentLL = place.getLatLng();
mMap.clear();
mMap.addMarker(new MarkerOptions().position(selectedLL).title(place.getAddress().toString()));
// The zooming animation learned from this tutorial:
// https://developers.google.com/maps/documentation/android-sdk/views
CameraPosition cameraPosition = new CameraPosition.Builder()
.target(selectedLL) // Sets the center of the map to selected place
.zoom(17) // Sets the zoom
.bearing(0) // Sets the orientation of the camera to east
.tilt(30) // Sets the tilt of the camera to 30 degrees
.build(); // Creates a CameraPosition from the builder
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
mMap.addMarker(new MarkerOptions().position(currentLL).title(place.getAddress().toString()));
moveCamera(currentLL, 17, 0);
}

@Override
Expand All @@ -76,24 +91,94 @@ public void onError(Status status) {

// The switch button usage learned from this example:
// https://www.viralandroid.com/2015/11/android-switch-button-example.html
switchButton = (Switch) findViewById(R.id.switch1);
Switch switchButton = (Switch) findViewById(R.id.switch1);
switchButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
Toast.makeText(getApplicationContext(), "Switched to hybrid map", Toast.LENGTH_LONG).show();
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
}
else {
} else {
Toast.makeText(getApplicationContext(), "Switched to normal map", Toast.LENGTH_LONG).show();
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}
}
});

Switch switchButton2 = (Switch) findViewById(R.id.switch2);
switchButton2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
Toast.makeText(getApplicationContext(), "Switched to 3D view", Toast.LENGTH_LONG).show();
tilt = 60;
moveCamera(currentLL, 17, 0);
} else {
tilt = 0;
Toast.makeText(getApplicationContext(), "Switched to 2D view", Toast.LENGTH_LONG).show();
moveCamera(currentLL, 17, 0);
}
}
});

// Press a button to jump back home
Button locateButton = findViewById(R.id.locate);
locateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "Going home", Toast.LENGTH_LONG).show();
String address = "3110 Red River St";
// Use Volley to make geocoding API request, learned from:
// https://developer.android.com/training/volley/simple
// Instantiate the RequestQueue.
RequestQueue queue = Volley.newRequestQueue(getApplicationContext());
String requestURL = "https://maps.googleapis.com/maps/api/geocode/json?address=" + address.replace(' ', '+') + "&key=" + API_KEY;
Log.d("url: ", requestURL);
// Request a string response from the provided URL.
StringRequest stringRequest = new StringRequest(Request.Method.GET, requestURL,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject reader = new JSONObject(response);
Log.d("Response is: ", reader.get("status").toString());
double lat = (double) reader.getJSONArray("results").getJSONObject(0)
.getJSONObject("geometry")
.getJSONObject("location")
.get("lat");
double lng = (double) reader.getJSONArray("results").getJSONObject(0)
.getJSONObject("geometry")
.getJSONObject("location")
.get("lng");
String county = (String) reader.getJSONArray("results").getJSONObject(0)
.get("formatted_address");
currentLL = new LatLng(lat, lng);
mMap.clear();
mMap.addMarker(new MarkerOptions().position(currentLL).title(county));
moveCamera(currentLL, 17, 0);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d("Error: ", "VolleyError");
}
});

// Add the request to the RequestQueue.
queue.add(stringRequest);
}
});

// Construct a PlaceDetectionClient.
mPlaceDetectionClient = Places.getPlaceDetectionClient(this, null);
// Construct a FusedLocationProviderClient.
mFusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);

// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}

Expand All @@ -112,20 +197,89 @@ public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
// Zoom in, animating the camera.
mMap.animateCamera(CameraUpdateFactory.zoomIn());

// Zoom out to zoom level 10, animating with a duration of 2 seconds.
mMap.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);
currentLL = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(currentLL).title("Marker in Sydney"));
moveCamera(currentLL, 17, 0);

getLocationPermission();
}

/**
* Search geocoding for the address entered by the user
*
*/
private void moveCamera(LatLng latLng, float zoom, float bearing){
// The zooming animation learned from this tutorial:
// https://developers.google.com/maps/documentation/android-sdk/views
CameraPosition cameraPosition = new CameraPosition.Builder()
.target(latLng) // Sets the center of the map to selected place
.zoom(zoom) // Sets the zoom
.bearing(bearing) // Sets the orientation of the camera to east
.tilt(tilt) // Sets the tilt of the camera to 30 degrees
.build(); // Creates a CameraPosition from the builder
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
}

// Use fused location client to get the device location
// https://developers.google.com/maps/documentation/android-sdk/location
// https://developers.google.com/maps/documentation/android-sdk/current-place-tutorial
private void getLocationPermission() {
/*
* Request location permission, so that we can get the location of the
* device. The result of the permission request is handled by a callback,
* onRequestPermissionsResult.
*/
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "Location access granted", Toast.LENGTH_SHORT).show();
mLocationPermissionGranted = true;
mMap.setMyLocationEnabled(true);
mMap.setOnMyLocationButtonClickListener(this);
} else {
Toast.makeText(this, "Need Location access", Toast.LENGTH_SHORT).show();
ActivityCompat.requestPermissions(this,
new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION},
PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION);
}
}

private void getDeviceLocation() {
/*
* Get the best and most recent location of the device, which may be null in rare
* cases when a location is not available.
*/
try {
if (mLocationPermissionGranted) {
Task<Location> locationResult = mFusedLocationProviderClient.getLastLocation();
locationResult.addOnCompleteListener(this, new OnCompleteListener<Location>() {
@Override
public void onComplete(@NonNull Task<Location> task) {
if (task.isSuccessful()) {
// Set the map's camera position to the current location of the device.
mLastKnownLocation = task.getResult();
double lat = mLastKnownLocation.getLatitude();
double lng = mLastKnownLocation.getLongitude();
currentLL = new LatLng(lat, lng);
//mMap.clear();
//mMap.addMarker(new MarkerOptions().position(selectedLL).title("current location"));
moveCamera(currentLL, 17, 0);
} else {
Toast.makeText(getApplicationContext(), "Current location is null. Using defaults.", Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(), "Exception: " + task.getException(), Toast.LENGTH_SHORT).show();
}
}
});
}
} catch(SecurityException e) {
Log.e("Exception: %s", e.getMessage());
}
}

@Override
public boolean onMyLocationButtonClick() {
Toast.makeText(this, "Go to current location", Toast.LENGTH_SHORT).show();
getDeviceLocation();
return false;
}


// public void onSearch(View view){
// // Minimize the keyboard first, learned from:
// // https://stackoverflow.com/questions/1109022/close-hide-the-android-soft-keyboard
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22 changes: 22 additions & 0 deletions app/src/main/res/layout/activity_maps.xml
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Expand Up @@ -47,13 +47,35 @@
android:layout_width="match_parent"
android:layout_height="match_parent">

<Button
android:id="@+id/locate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginEnd="0dp"
android:layout_marginBottom="57dp"
android:text="HOME" />

<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="0dp"
android:layout_marginTop="0dp"
tools:context=".MapsActivity" />

<Switch
android:id="@+id/switch2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/switch1"
android:layout_alignParentEnd="true"
android:text="3D View" />

<Switch
android:id="@+id/switch1"
android:layout_width="wrap_content"
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