/**
* Created by user on 29-05-2018.
*/
package soundcom.scorelab.org.soundcom;
import android.app.Activity;
import android.content.ContextWrapper;
import android.Manifest;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Environment;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.content.Context;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.junit.Test;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.List;
import java.util.Random;
import java.io.File;
import java.io.FileOutputStream;
import soundcom.scorelab.org.soundcom_lib.Permission;
import soundcom.scorelab.org.soundcom_lib.Receiver;
import soundcom.scorelab.org.soundcom_lib.Transmitter;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener, View.OnClickListener {
private static Transmitter transmitter;
private static Receiver receiver;
private static String modulation;
private static ImageView image;
private String src;
private static double duration;
private static double sample_rate;
private static double symbol_size;
private static double sample_period;
private static int number_of_carriers;
private static MediaPlayer mediaplayer;
private static String recovered_string;
private static String a;
private static TextView name; //username
private static TextView mail; //user-email
private static EditText mEdit;
private static Button gen;
private static FloatingActionButton fab_trans;
private static TextView recovered_textView;
private MessageAdapter messageAdapter;
private ListView messagesView;
private static String TAG = "PermissionDemo"; // Permissions to write to files
private static final int REQUEST_WRITE_STORAGE = 112;
private String filename = "storage.json"; //Chat storage
private String filepath = "MyFileStorage"; //Path to file
private File myInternalFile;
//private Context context;
@Override
public void onClick(View v){
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
messageAdapter = new MessageAdapter(this);
setContentView(R.layout.home);
name = (TextView) findViewById(R.id.username);
a = name.getText().toString();
mail = (TextView) findViewById(R.id.mailid);
requestNamePermissions(); //username and email extraction permission
setContentView(R.layout.home);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
View receive = findViewById(R.id.receive); //receive button on home page
receive.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clicked(v);
}
});
View send = findViewById(R.id.send); //send button on home page
send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clicked(v);
}
});
requestWritePermissions(); //wav file & storage file write permission;
requestRecordPermissions(); //mic record permission
image = new ImageView(this);
image.setImageResource(R.drawable.transmit);
modulation = "FSK";
sample_rate = 44100.0;
symbol_size = 0.25;
sample_period = 1.0 / sample_rate;
duration = 36;
number_of_carriers = 16;
ContextWrapper contextWrapper = new ContextWrapper(getApplicationContext());
File directory = contextWrapper.getDir(filepath, Context.MODE_PRIVATE);
myInternalFile = new File(directory , filename);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
check();
}
public void inithome(){ //home page display
setContentView(R.layout.home);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
View receive = findViewById(R.id.receive); //receive button on home page
receive.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clicked(v);
}
});
View send = findViewById(R.id.send); //send button on home page
send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clicked(v);
}
});
image = new ImageView(this);
image.setImageResource(R.drawable.transmit);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
}
//send and receive button functioning
public void clicked(View v) {
if (v.getId() == R.id.send) {
initTransmit();
} else if (v.getId() == R.id.receive) {
initReceive();
}
}
//chat storage file check
public void check(){
boolean isFilePresent = isFilePresent(this, "storage.json");
if(!isFilePresent) {
boolean isFileCreated = create(this, "storage.json", "{}");
if(isFileCreated) {
//proceed with storing the first todo or show ui
System.out.println("json file created");
} else {
//show error or try again.
System.out.println("json file creation failed");
}
}
}
//color for receiving message user
public String getRandomColor() {
Random r = new Random();
StringBuffer sb = new StringBuffer("#");
while (sb.length() < 7) {
sb.append(Integer.toHexString(r.nextInt()));
}
return sb.toString().substring(0, 7);
}
//generate button functioning
public void clickHelper(Context context,EditText mEdit, View v) {
src = mEdit.getText().toString();
while (src.length() != 30) {
src += " ";
}
mEdit.setText(src);
System.out.println(context.getClass());
if(context.getClass()==android.app.Application.class)
{generate(context);
fab_trans.show();}
else
return;
}
//mic permission to record audio
public void requestRecordPermissions() {
int permission = ContextCompat.checkSelfPermission(this,
Manifest.permission.RECORD_AUDIO);
if (permission != PackageManager.PERMISSION_GRANTED) {
Log.i(TAG, "Permission to Record Audio denied");
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.RECORD_AUDIO)) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Permission to Record Audio")
.setTitle("Permission required");
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Log.i(TAG, "Clicked");
makeRecordRequest();
}
});
AlertDialog dialog = builder.create();
dialog.show();
} else {
makeRecordRequest();
}
}
}
//username and email extraction permission
public void requestNamePermissions() {
setContentView(R.layout.nav_header_receiver);
mail = (TextView) findViewById(R.id.mailid);
int permission = ContextCompat.checkSelfPermission(this,
Manifest.permission.GET_ACCOUNTS);
if (permission != PackageManager.PERMISSION_GRANTED) {
Log.i(TAG, "Permission to Username denied");
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.GET_ACCOUNTS)) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Permission to username")
.setTitle("Permission required");
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Log.i(TAG, "Clicked");
makeNameRequest();
}
});
AlertDialog dialog = builder.create();
dialog.show();
} else {
makeNameRequest();
}
}
AccountManager manager = AccountManager.get(this);
Account[] accounts = manager.getAccountsByType("com.google");
List<String> possibleEmails = new LinkedList<String>();
for (Account account : accounts) {
// TODO: Check possibleEmail against an email regex or treat
// account.name as an email address only for certain account.type values.
possibleEmails.add(account.name);
}
if (!possibleEmails.isEmpty() && possibleEmails.get(0) != null) {
String email = possibleEmails.get(0);
String[] parts = email.split("@");
System.out.println(email);
mail.setText(email);
if (parts.length > 1)
name.setText(parts[0]);
}
}
protected void makeRecordRequest() {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.RECORD_AUDIO},
REQUEST_WRITE_STORAGE);
}
protected void makeNameRequest() {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.GET_ACCOUNTS,Manifest.permission.RECORD_AUDIO,Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_WRITE_STORAGE);
}
public void requestWritePermissions() {
int permission = ContextCompat.checkSelfPermission(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (permission != PackageManager.PERMISSION_GRANTED) {
Log.i(TAG, "Permission to record denied");
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Permission to access the SD-CARD is required for this app to Download PDF.")
.setTitle("Permission required");
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Log.i(TAG, "Clicked");
makeWriteRequest();
}
});
AlertDialog dialog = builder.create();
dialog.show();
} else {
makeWriteRequest();
}
}
}
protected void makeWriteRequest() {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
REQUEST_WRITE_STORAGE);
}
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case REQUEST_WRITE_STORAGE: {
if (grantResults.length == 0
|| grantResults[0] !=
PackageManager.PERMISSION_GRANTED) {
Log.i(TAG, "Permission has been denied by user");
} else {
Log.i(TAG, "Permission has been granted by user");
}
return;
}
}
}
private boolean create(Context context, String fileName, String jsonString){
try {
FileOutputStream fOut = context.openFileOutput(fileName,Context.MODE_PRIVATE);
fOut.write(jsonString.getBytes());
fOut.close();
return true;
} catch (FileNotFoundException fileNotFound) {
return false;
} catch (IOException ioException) {
return false;
}
}
public boolean isFilePresent(Context context, String fileName) {
String path = context.getFilesDir().getAbsolutePath();
path=path.substring(0,path.length()-5)+"app_MyFileStorage"+"/" + fileName;
File file = new File(path);
System.out.println(path);
return file.exists()&& !file.isDirectory();
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.transmitter, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if(id==R.id.homepage){
inithome();
}
if (id == R.id.receive) {
initReceive();
} else if (id == R.id.transmit) {
initTransmit();
} else if (id == R.id.history){
initHistory();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
//receiving handling
public void initReceive() {
final Context context = getApplicationContext();
CharSequence text = "Receiver Mode Activated";
int duration = Toast.LENGTH_SHORT;
long free = Runtime.getRuntime().freeMemory();
Toast toast = Toast.makeText(context, text, duration);
toast.show();
setContentView(R.layout.activity_receiver);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
toggle.syncState();
recovered_textView = (TextView) findViewById(R.id.recovered);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
assert fab != null;
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Receiving Modulated Waveform", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
try {
record(context);
} catch (Exception e) {
e.printStackTrace();
}
}
});
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
navigationView.setCheckedItem(R.id.receive);
}
//chat display handling
public void initHistory() {
final Context context = getApplicationContext();
CharSequence text = "Your Recent Chat";
int duration = Toast.LENGTH_SHORT;
long free = Runtime.getRuntime().freeMemory();
Toast toast = Toast.makeText(context, text, duration);
toast.show();
setContentView(R.layout.history_nav);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
navigationView.setCheckedItem(R.id.history);
System.out.println("History inited");
messageAdapter = new MessageAdapter(this);
try {
System.out.println(loadJSONFromAsset(myInternalFile)); //loading messages from json file
JSONObject obj = new JSONObject(loadJSONFromAsset(myInternalFile));
JSONArray messages = obj.getJSONArray("messages");
for (int i = 0; i < messages.length(); i++) {
JSONObject jo_inside = messages.getJSONObject(i);
String textvalue = jo_inside.getString("text");
JSONObject data = jo_inside.getJSONObject("data");
MemberData datavalue = new MemberData(data.getString("name"),data.getString("color"));
boolean iscurrentuser = Boolean.valueOf(jo_inside.getString("user"));
final Message message = new Message(textvalue,datavalue,iscurrentuser);
messagesView = (ListView) findViewById(R.id.messages_view);
messagesView.setAdapter(messageAdapter); //display message list
runOnUiThread(new Runnable() {
@Override
public void run() {
messageAdapter.add(message); //add message to messages_list
messagesView.setSelection(messagesView.getCount() - 1);
System.out.println("message added");
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
}
//transmission handling
public void initTransmit() {
final Context context = getApplicationContext();
CharSequence text = "Transmitter Mode Activated";
int duration = Toast.LENGTH_SHORT;
long free = Runtime.getRuntime().freeMemory();
// generate(context);
Toast toast = Toast.makeText(context, text, duration);
toast.show();
setContentView(R.layout.activity_transmitter);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
navigationView.setCheckedItem(R.id.transmit);
gen = (Button) findViewById(R.id.generate);
mEdit = (EditText) findViewById(R.id.transmitString);
gen.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clickHelper(context,mEdit,v);
}
});
fab_trans = (FloatingActionButton) findViewById(R.id.fab);
fab_trans.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) { //playing the wav file
Snackbar.make(view, "Transmitting Modulated Waveform", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
mediaplayer = new MediaPlayer();
String root = Environment.getExternalStorageDirectory().toString();
File dir = new File(root, "Soundcom");
if (!dir.exists()) {
dir.mkdir();
}
try {
mediaplayer.setDataSource(dir + File.separator + "FSK.wav");
mediaplayer.prepare();
mediaplayer.start();
MemberData data = new MemberData(a, getRandomColor());
boolean belongsToCurrentUser=true;
final Message message = new Message(src, data, belongsToCurrentUser);
printmessage(message); //add transmitted message to chat
} catch (Exception e) {
e.printStackTrace();
}
}
});
fab_trans.hide();
}
//text to voice media generation,creating wav file to be played
public void generate(final Context context) {
final ProgressDialog mProgressDialog = ProgressDialog.show(this, "Hold Tight", "Generating Modulation Data", true);
new Thread() {
@Override
public void run() {
transmitter = new Transmitter(modulation, src, sample_rate, symbol_size, sample_period, number_of_carriers, context);
System.out.println("Writing WavFile");
transmitter.writeAudio();
System.out.println("WaveFile Written. Thread waiting");
try {
// code runs in a thread
runOnUiThread(new Runnable() {
@Override
public void run() {
mProgressDialog.dismiss();
}
});
} catch (final Exception ex) {
}
}
}.start();
}
//recording and processing
public void record(final Context context) {
final ProgressDialog mProgressDialog = ProgressDialog.show(this, "Hold Tight", "Recovering Signal", true);
new Thread() {
@Override
public void run() {
try {
long startTime = System.nanoTime();
receiver = new Receiver("recorded.wav", sample_rate, symbol_size, duration, number_of_carriers, context);
receiver.record();
receiver.demodulate();
recovered_string = "aaaa";
recovered_string = receiver.getRecoverd_string();
long endTime = System.nanoTime();
long duration = (endTime - startTime) / 1000000;
System.out.println("Time taken for Reception: " + duration + "ms");
// final TextView textViewToChange = (TextView) findViewById(R.id.recovered);
// textViewToChange.setText(recovered);
} catch (Exception e) {
e.printStackTrace();
}
try {
// code runs in a thread
runOnUiThread(new Runnable() {
@Override
public void run() {
mProgressDialog.dismiss();
if(recovered_string.equals("-1")){
recovered_string = " ";
CharSequence text = "Never caught that \uD83D\uDE22 \nPlease Could You Retransmit";
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
else{
MemberData data = new MemberData(recovered_string.substring(0,9), getRandomColor());
boolean belongsToCurrentUser=false;
final Message message = new Message(recovered_string, data, belongsToCurrentUser);
printmessage(message);
}
recovered_textView.setText(" " + recovered_string + " ");
}
});
} catch (final Exception ex) {
}
}
}.start();
}
//add message in message list after every receive and transfer
public void printmessage(final Message message){
initHistory();
messagesView = (ListView) findViewById(R.id.messages_view);
messagesView.setAdapter(messageAdapter);
runOnUiThread(new Runnable() {
@Override
public void run() {
messageAdapter.add(message);
messagesView.setSelection(messagesView.getCount() - 1);
System.out.println("message added");
}
});
int x=messageAdapter.getCount();
List<Message> messages= messageAdapter.getmessages();
JsonUtil jsonstring= new JsonUtil();
String JSONcontent = jsonstring.toJSON(messages,x);
Context context=getApplicationContext();
write(JSONcontent,message,context,myInternalFile);
}
//write messages to file storage.json
public void write(String JSONcontent,Message message,Context context,File myInternalFile){
if(isFilePresent(context, "storage.json")) {
try {
FileOutputStream fOut = new FileOutputStream(myInternalFile);
fOut.write(JSONcontent.getBytes());
fOut.close();
System.out.println("Done");
} catch (IOException e) {
e.printStackTrace();
}
//proceed with storing the first todo or show ui
} else {
create(context, "storage.json", "{}");
if(context.getClass()==android.app.Application.class)
printmessage(message);
}
}
//read messages from file storage.json
public String loadJSONFromAsset(File myInternalFile) {
String json = "";
try {
FileInputStream fis = new FileInputStream(myInternalFile);
DataInputStream in = new DataInputStream(fis);
BufferedReader br =
new BufferedReader(new InputStreamReader(in));
String strLine;
while ((strLine = br.readLine()) != null) {
json = json + strLine;
}
in.close();
} catch (IOException e) {
e.printStackTrace();
}
return json;
}
}
//converting message to JSON format for storage
class JsonUtil extends Activity {
public static String toJSON(List<Message> messages , int n) {
try {
// Here we convert Java Object to JSON
JSONObject messageslist= new JSONObject();
JSONArray Jarray= new JSONArray();
for(int i=0;i<n;i++) {
JSONObject jsonTxt = new JSONObject();
jsonTxt.put("text", messages.get(i).getText());
JSONObject jsondata = new JSONObject();
jsondata.put("name", messages.get(i).getData().getName());
jsondata.put("color", messages.get(i).getData().getColor());
jsonTxt.put("data", jsondata);
jsonTxt.put("user", String.valueOf(messages.get(i).isBelongsToCurrentUser()));
Jarray.put(jsonTxt);
}
messageslist.put("messages",Jarray);
System.out.println(messageslist.toString());
return messageslist.toString();
} catch (JSONException ex) {
ex.printStackTrace();
}
return null;
}
}
//received message user handling
class MemberData {
private String name;
private String color;
public MemberData(String name, String color) {
this.name = name;
this.color = color;
}
public MemberData() {
}
public String getName() {
return name;
}
public String getColor() {
return color;
}
@Override
public String toString() {
return "MemberData{" +
"name='" + name + '\'' +
", color='" + color + '\'' +
'}';
}
}
