Develop Reference

Google Achievements Unlock But Don't Save

I added achievements to my Google Play game following Google's tutorial. They unlock fine and if I display achievements in-game immediately they show up. If I quit the game and go to the Google Game's app they don't show up and they disappear from in-game also. Any ideas? I've tried multiple accounts. Thanks!
package com.b1stable.tth;
import java.io.File;
import java.io.FileFilter;
import java.util.Locale;
import java.nio.file.Path;
import java.nio.file.PathMatcher;
import java.nio.file.FileSystems;
import java.util.Vector;
import android.os.Bundle;
import android.os.Build;
import android.content.Context;
import android.content.Intent;
import android.graphics.Canvas;
import android.graphics.Color;
import android.net.Uri;
import android.os.Vibrator;
import android.os.VibrationEffect;
import android.util.Log;
import android.view.Surface;
import android.view.Gravity;
import org.libsdl.app.SDLActivity;
import com.b1stable.tth.License_Viewer_Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentActivity;
import com.google.android.gms.auth.api.signin.GoogleSignIn;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInClient;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.games.AchievementsClient;
import com.google.android.gms.games.AnnotatedData;
import com.google.android.gms.games.EventsClient;
import com.google.android.gms.games.Games;
import com.google.android.gms.games.GamesClient;
import com.google.android.gms.games.LeaderboardsClient;
import com.google.android.gms.games.Player;
import com.google.android.gms.games.PlayersClient;
import com.google.android.gms.games.event.Event;
import com.google.android.gms.games.event.EventBuffer;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.android.gms.tasks.Task.*;
public class TTH_Activity extends SDLActivity
{
final static int LICENSE_REQUEST = 1;
native static void resume_after_showing_license();
native static void resume_after_showing_achievements();
native static void pause();
native static void resume();
// Client used to sign in with Google APIs
private GoogleSignInClient mGoogleSignInClient;
private AchievementsClient mAchievementsClient = null;
private boolean signin_failed = false;
// request codes we use when invoking an external activity
private static final int RC_UNUSED = 5001;
private static final int RC_SIGN_IN = 9001;
// This is so the screen is never cleared pure black, only shim::black (r:35, g:30, b:60)
static boolean paused = false;
private static final String TAG = "TTH";
#Override
public void onCreate(Bundle savedInstance)
{
super.onCreate(savedInstance);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == LICENSE_REQUEST) {
if (data != null) {
if (resultCode == RESULT_OK && data.getExtras().getString("MESSAGE").equals("OK")) {
show_license_result = 0;
}
else if (resultCode == RESULT_CANCELED && data.getExtras().getString("MESSAGE").equals("FAIL")) {
show_license_result = 1;
}
else {
show_license_result = 1;
}
}
else {
show_license_result = 1;
}
resume_after_showing_license();
}
if (requestCode == RC_SIGN_IN) {
GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
if (result.isSuccess()) {
// The signed in account is stored in the result.
GoogleSignInAccount signedInAccount = result.getSignInAccount();
onConnected(signedInAccount);
}
else {
String message = result.getStatus().getStatusMessage();
if (message == null || message.isEmpty()) {
message = "An error occurred!";
}
new AlertDialog.Builder(this).setMessage(message).setNeutralButton(android.R.string.ok, null).show();
onDisconnected();
}
}
}
public void onStart() {
super.onStart();
}
#Override
public void onStop()
{
super.onStop();
pause();
}
#Override
public void onRestart()
{
super.onRestart();
resume();
}
#Override
public void onResume()
{
super.onResume();
signInSilently();
}
#Override
public void onPause()
{
super.onPause();
mAchievementsClient = null;
}
#Override
public void onPostResume()
{
super.onPostResume();
paused = true;
}
public void logString(String s)
{
Log.d("TTH", s);
}
public String getAppdataDir()
{
return getFilesDir().getAbsolutePath();
}
public String getSDCardDir()
{
File f = getExternalFilesDir(null);
if (f != null) {
return f.getAbsolutePath();
}
else {
return getFilesDir().getAbsolutePath();
}
}
static int show_license_result;
public void showLicense()
{
show_license_result = -1;
Intent intent = new Intent(this, License_Viewer_Activity.class);
startActivityForResult(intent, LICENSE_REQUEST);
}
public int getShowLicenseResult()
{
return show_license_result;
}
/*
public void openURL(String url)
{
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
}
*/
public void rumble(int milliseconds)
{
Vibrator v = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
if (v != null && v.hasVibrator()) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
v.vibrate(VibrationEffect.createOneShot(milliseconds, VibrationEffect.DEFAULT_AMPLITUDE));
}
else {
v.vibrate(milliseconds);
}
}
}
public boolean has_touchscreen()
{
return getPackageManager().hasSystemFeature("android.hardware.touchscreen");
}
public boolean has_vibrator()
{
Vibrator v = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
if (v != null) {
return v.hasVibrator();
}
else {
return false;
}
}
public void start_draw()
{
if (paused) {
paused = false;
}
}
public String get_android_language()
{
return Locale.getDefault().getLanguage();
}
private static File[] list_dir_files = null;
public void list_dir_start(String path)
{
try {
int slash = path.lastIndexOf('/');
final String glob = path.substring(slash+1).replace("*", ".*"); // +1 works even if not found (-1+1 == 0)
String dir = path.substring(0, slash);
File f = new File(dir);
list_dir_files = f.listFiles(new FileFilter() {
public boolean accept(File f)
{
try {
if (f.getName().matches(glob)) {
return true;
}
else {
return false;
}
}
catch (Exception e) {
Log.d("TTH", "list_dir_start FileFilter throwing " + e.getMessage());
return false;
}
}
});
}
catch (Exception e) {
list_dir_files = null;
Log.d("TTH", "list_dir_start throwing " + e.getMessage());
}
}
public String list_dir_next()
{
if (list_dir_files == null) {
return "";
}
else if (list_dir_files.length == 0) {
list_dir_files = null;
return "";
}
else {
File f = list_dir_files[0];
String name = f.getName();
if (list_dir_files.length == 1) {
list_dir_files = null;
}
else {
File[] new_list = new File[list_dir_files.length-1];
for (int i = 1; i < list_dir_files.length; i++) {
new_list[i-1] = list_dir_files[i];
}
list_dir_files = new_list;
}
return name;
}
}
private static final String ARC_DEVICE_PATTERN = ".+_cheets|cheets_.+";
public boolean is_chromebook()
{
// Google uses this, so should work?
return Build.DEVICE != null && Build.DEVICE.matches(ARC_DEVICE_PATTERN);
}
private static final int RC_ACHIEVEMENT_UI = 9003;
public boolean show_achievements()
{
if (mAchievementsClient == null) {
return false;
}
mAchievementsClient.getAchievementsIntent().addOnSuccessListener(new OnSuccessListener<Intent>() {
#Override
public void onSuccess(Intent intent) {
startActivityForResult(intent, RC_ACHIEVEMENT_UI);
resume_after_showing_achievements();
}
}).addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(Exception e) {
resume_after_showing_achievements();
}
}).addOnCompleteListener(new OnCompleteListener<Intent>() {
#Override
public void onComplete(Task<Intent> task) {
resume_after_showing_achievements();
}
});
return true;
}
public void achieve(String id)
{
if (mAchievementsClient != null) {
mAchievementsClient.unlock(id);
}
}
private void startSignInIntent() {
GoogleSignInClient signInClient = GoogleSignIn.getClient(this, GoogleSignInOptions.DEFAULT_GAMES_SIGN_IN);
Intent intent = signInClient.getSignInIntent();
startActivityForResult(intent, RC_SIGN_IN);
}
private void signInSilently() {
if (signin_failed == true || mAchievementsClient != null) {
return;
}
GoogleSignInOptions signInOptions = GoogleSignInOptions.DEFAULT_GAMES_SIGN_IN;
GoogleSignInAccount account = GoogleSignIn.getLastSignedInAccount(this);
if (GoogleSignIn.hasPermissions(account, signInOptions.getScopeArray())) {
// Already signed in.
// The signed in account is stored in the 'account' variable.
//GoogleSignInAccount signedInAccount = account;
onConnected(account);
}
else {
// Haven't been signed-in before. Try the silent sign-in first.
GoogleSignInClient signInClient = GoogleSignIn.getClient(this, signInOptions);
signInClient.silentSignIn().addOnCompleteListener(
this,
new OnCompleteListener<GoogleSignInAccount>() {
#Override
public void onComplete(#NonNull Task<GoogleSignInAccount> task) {
if (task.isSuccessful()) {
// The signed in account is stored in the task's result.
GoogleSignInAccount signedInAccount = task.getResult();
onConnected(signedInAccount);
}
else {
// Player will need to sign-in explicitly using via UI.
// See [sign-in best practices](http://developers.google.com/games/services/checklist) for guidance on how and when to implement Interactive Sign-in,
// and [Performing Interactive Sign-in](http://developers.google.com/games/services/android/signin#performing_interactive_sign-in) for details on how to implement
// Interactive Sign-in.
startSignInIntent();
}
}
}
);
}
}
public void start_google_play_games_services() {
/*
runOnUiThread(new Runnable() {
public void run() {
signInSilently();
}
});
*/
}
private void onConnected(GoogleSignInAccount googleSignInAccount) {
Log.d(TAG, "onConnected(): connected to Google APIs");
GamesClient gamesClient = Games.getGamesClient(this, googleSignInAccount);
gamesClient.setViewForPopups(findViewById(android.R.id.content));
gamesClient.setGravityForPopups(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
mAchievementsClient = Games.getAchievementsClient(this, googleSignInAccount);
}
private void onDisconnected() {
Log.d(TAG, "onDisconnected()");
mAchievementsClient = null;
signin_failed = true;
}
}

Android bluetooth printer app works fine in debug mode but doesn't work in release mode

I am writing an Android app to print text on a bluetooth thermal printer.
Here is the complete code
The app works fine in the debug mode but when I generate a signed APK and install it on the device, it does not respond at all.
I have tried different solution suggested on stackoverflow but non of them worked.
This is my main activity
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import com.lvrenyang.io.IOCallBack;
import java.lang.ref.WeakReference;
public class MainActivity extends AppCompatActivity {
private Handler mHandler; // Our main handler that will receive callback notifications
// #defines for identifying shared types between calling functions
private final static int REQUEST_ENABLE_BT = 1; // used to identify adding bluetooth names
private static String TAG = "MAIN_ACTIVITY";
private Activity activity;
private Button btnConnect;
private String name = "MTP-II";
private String mac_address = "02:15:44:31:49:05";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Get the activity
this.activity = this;
//Button from the XML view
btnConnect = findViewById(R.id.btnConnect);
//Start the Init Work Service Async task
new InitWorkService().execute();
//Set onClickListener for test print button
btnConnect.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
try {
//Check if name and address are set
if (name != "null" && mac_address != "null" && mac_address.contains(":")) {
if (!WorkService.workThread.isConnected()) {
WorkService.workThread.connectBt(mac_address);
//Sleep for 3 seconds
try {
Thread.sleep(3000);
} catch (Exception e) {
}
}
//Check if connected
if (WorkService.workThread.isConnected()) {
//Collect data in background Thread
new PrintData().execute();
} else {
Toast.makeText(activity, Global.toast_notconnect, Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(activity, "Please setup printer first!", Toast.LENGTH_LONG).show();
}
}
catch(Exception e){
Log.e(TAG, e.getMessage(), e.fillInStackTrace());}
}
});
}
/**
* Background Async Task
* */
private class InitWorkService extends AsyncTask<String, String, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
protected String doInBackground(String... args){
try{
WorkService.cb = new IOCallBack() {
public void OnOpen() {
if (null != mHandler) {
Message msg = mHandler.obtainMessage(Global.MSG_IO_ONOPEN);
mHandler.sendMessage(msg);
}
}
public void OnClose() {
if (null != mHandler) {
Message msg = mHandler.obtainMessage(Global.MSG_IO_ONCLOSE);
mHandler.sendMessage(msg);
}
}
};
}
catch(Exception e){
Log.e(TAG, e.getMessage(), e.fillInStackTrace());
}
return null;
}
protected void onPostExecute(String file_url){
try {
mHandler = new MHandler(MainActivity.this);
WorkService.addHandler(mHandler);
if (null == WorkService.workThread) {
Intent intent = new Intent(activity, WorkService.class);
startService(intent);
}
}
catch (Exception e) {
Log.e(TAG, e.getMessage(), e.fillInStackTrace());
Toast.makeText(activity, "Unable to initiate the WorkService!", Toast.LENGTH_LONG).show();
}
}
}
/**
* Background Async Task
* */
class PrintData extends AsyncTask<String, String, String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
protected String doInBackground(String... args){
try{
int nTextAlign=1;
String text = "Test message!\r\n\r\n\r\n";
String encoding = "UTF-8";
byte[] hdrBytes = {0x1c, 0x26, 0x1b, 0x39, 0x01};
Bundle dataAlign = new Bundle();
Bundle dataTextOut = new Bundle();
Bundle dataHdr = new Bundle();
dataHdr.putByteArray(Global.BYTESPARA1, hdrBytes);
dataHdr.putInt(Global.INTPARA1, 0);
dataHdr.putInt(Global.INTPARA2, hdrBytes.length);
dataAlign.putInt(Global.INTPARA1, nTextAlign);
dataTextOut.putString(Global.STRPARA1, text);
dataTextOut.putString(Global.STRPARA2, encoding);
WorkService.workThread.handleCmd(Global.CMD_POS_WRITE,dataHdr);
WorkService.workThread.handleCmd(Global.CMD_POS_SALIGN,dataAlign);
WorkService.workThread.handleCmd(Global.CMD_POS_STEXTOUT,dataTextOut);
}catch(Exception e){
Log.e(TAG, e.getMessage(), e.fillInStackTrace());
}
return null;
}
protected void onPostExecute(String file_url){}
}
#Override
protected void onUserLeaveHint()
{
Log.d("onUserLeaveHint","Home button pressed");
super.onUserLeaveHint();
//Unregister bluetooth receiver
try{unregisterReceiver(bluetoothReceiver);}catch(Exception e){}
//Disconnect bt connection
try{WorkService.workThread.disconnectBt();}catch(Exception e){}
// remove the handler
try{WorkService.delHandler(mHandler);}catch(Exception e){}
mHandler = null;
}
/**
* Broadcast receiver for bluetooth state changes
*/
private final BroadcastReceiver bluetoothReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent)
{
final String action = intent.getAction();
if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED))
{
final int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,BluetoothAdapter.ERROR);
switch (state)
{
case BluetoothAdapter.STATE_OFF:
// closeConnection();//Close on going connection and disable button
Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
break;
case BluetoothAdapter.STATE_ON:
break;
}
}
}
};
private static class MHandler extends Handler {
WeakReference<MainActivity> mActivity;
MHandler(MainActivity activity) {
mActivity = new WeakReference<>(activity);
}
#Override
public void handleMessage(Message msg) {
MainActivity theActivity = mActivity.get();
switch (msg.what) {
case Global.CMD_POS_STEXTOUTRESULT:
case Global.CMD_POS_WRITERESULT: {
int result = msg.arg1;
Toast.makeText(
theActivity,
(result == 1) ? Global.toast_success
: Global.toast_fail, Toast.LENGTH_SHORT).show();
Log.v(TAG, "Result: " + result);
break;
}
}
}
}
}

Does your app manifest declare permissions for bluetooth to be used?
https://developer.android.com/guide/topics/connectivity/bluetooth#Permissions
In order to use Bluetooth features in your application, you must declare two permissions. The first of these is BLUETOOTH. You need this permission to perform any Bluetooth communication, such as requesting a connection, accepting a connection, and transferring data.
The other permission that you must declare is either
ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION. A location permission
is required because Bluetooth scans can be used to gather information
about the location of the user. This information may come from the
user's own devices, as well as Bluetooth beacons in use at locations
such as shops and transit facilities.

If it only happens when u sign the apk, it looks like u have to update ur proguard rules, to exclude the printer lib clases or similar

One reason for the application not responding is that you stop the main thread for 3 seconds on line 60 in the click listener of the button.
Replace the onCreate() method with the code below
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Get the activity
this.activity = this;
//Button from the XML view
btnConnect = findViewById(R.id.btnConnect);
//Start the Init Work Service Async task
new InitWorkService().execute();
final ExecutorService es = Executors.newFixedThreadPool(1);
//Set onClickListener for test print button
btnConnect.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
btnConnect.setEnabled(false);
es.submit(new Runnable() {
#Override
public void run() {
connect();
}
});
}
});
}
private void connect() {
try {
//Check if name and address are set
if (name != null && mac_address != null && mac_address.contains(":")) {
if (!WorkService.workThread.isConnected()) {
WorkService.workThread.connectBt(mac_address);
//Sleep for 3 seconds
try {
Thread.sleep(3000);
} catch (Exception e) {
}
}
//Check if connected
if (WorkService.workThread.isConnected()) {
//Collect data in background Thread
new PrintData().execute();
} else {
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
Toast.makeText(activity, Global.toast_notconnect, Toast.LENGTH_SHORT).show();
}
});
}
} else {
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
Toast.makeText(activity, "Please setup printer first!", Toast.LENGTH_LONG).show();
}
});
}
} catch (Exception e) {
Log.e(TAG, e.getMessage(), e.fillInStackTrace());
}
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
btnConnect.setEnabled(true);
}
});
}
Now the connection part executes in a new thread and only the UI operations go on the main one.
Please note that this code is not the optimal solution because it does not take into account the activity lifecycle. If the activity is re-created while the thread sleeps, there is still a reference kept to the old activity. But it should be a starting point for you.

Android - Is it possible to use Speech recognition as a command

I know this is obvious but there any tutorials or links can you guys provide on how to use Speech/Voice recognition to command your phone, like Turning on/off your camera flashlight, notify that a message recieved, just like an assistant. is there any links or tutorials can you provide? I'm planning to make an application just like that. thanks

Speech is a "STT" (Speech to Text) system, thus meaning that your input will be a String... you can make a receiveCommand(String input) function, and make method calls.
Since you want to operate your device, usually without hands, and performing tasks on other activities, you might want to run your input as a Service, even InputMethodService might be appropriate.
package your_package.goes.here;
import android.app.Service;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import java.util.ArrayList;
import java.util.Locale;
import java.util.Timer;
import java.util.TimerTask;
public class STT_Services extends Service {
private static Intent speechIntent;
private SpeechRecognizer speechRecognizer;
private ImageView microphoneView;
private WindowManager windowManager;
private Handler handler;
private static Timer timer;
public STT_Services() {
}
private void enforceTimeToLive() {
if (timer != null) {
timer.cancel();
}
timer = new Timer();
timer.schedule(
new TimerTask() {
#Override
public void run() {
stopSelf();
}
},
120000
);
}
private void showMic() {
handler.removeCallbacksAndMessages(null);
handler.post(new Runnable() {
#Override
public void run() {
if (microphoneView != null) {
microphoneView.setVisibility(View.VISIBLE);
}
}
});
}
private void hideMic() {
handler.removeCallbacksAndMessages(null);
handler.post(new Runnable() {
#Override
public void run() {
if (microphoneView != null) {
microphoneView.setVisibility(View.GONE);
}
}
});
}
#Override
public void onCreate() {
Log.v(TAG, "onCreate()");
super.onCreate();
handler = new Handler(getMainLooper());
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
if (windowManager != null) {
microphoneView = new ImageView(this);
microphoneView.setImageResource(R.drawable.microphone);
microphoneView.setColorFilter(Color.RED);
DisplayMetrics displayMetrics = new DisplayMetrics();
windowManager.getDefaultDisplay().getMetrics(displayMetrics);
windowManager.addView(
microphoneView,
new WindowManager.LayoutParams(
// (int w, int h, int xpos, int ypos, int _type, int _flags, int _format)
displayMetrics.widthPixels / 2,//ViewGroup.LayoutParams.WRAP_CONTENT,
displayMetrics.heightPixels / 2,//ViewGroup.LayoutParams.WRAP_CONTENT,
0,
0,
WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
PixelFormat.TRANSPARENT
)
);
hideMic();
}
speechIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
speechIntent.putExtra(
RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM
);
speechIntent.putExtra(
RecognizerIntent.EXTRA_LANGUAGE,
Locale.getDefault()
);
if (speechRecognizer == null) {
speechRecognizer = SpeechRecognizer.createSpeechRecognizer(getApplicationContext());
speechRecognizer.setRecognitionListener(
new RecognitionListener() {
#Override
public void onReadyForSpeech(Bundle params) {
Log.v(TAG, "onReadyForSpeech(Bundle params)");
showMic();
}
#Override
public void onBeginningOfSpeech() {
Log.v(TAG, "onBeginningOfSpeech()");
}
#Override
public void onRmsChanged(float rmsdB) {
// Log.v(TAG, "onRmsChanged(float rmsdB)");
}
#Override
public void onBufferReceived(byte[] buffer) {
Log.v(TAG, "onBufferReceived(byte[] buffer)");
}
#Override
public void onEndOfSpeech() {
Log.v(TAG, "onEndOfSpeech()");
hideMic();
}
#Override
public void onError(int error) {
Log.v(TAG, "onError(int error) -> " + error);
switch (error) {
case SpeechRecognizer.ERROR_AUDIO:
Log.v(TAG, "ERROR_AUDIO");
break;
case SpeechRecognizer.ERROR_CLIENT:
Log.v(TAG, "ERROR_CLIENT");
break;
case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS:
Log.v(TAG, "ERROR_INSUFFICIENT_PERMISSIONS");
break;
case SpeechRecognizer.ERROR_NETWORK:
Log.v(TAG, "ERROR_NETWORK");
break;
case SpeechRecognizer.ERROR_NETWORK_TIMEOUT:
Log.v(TAG, "ERROR_NETWORK_TIMEOUT");
break;
case SpeechRecognizer.ERROR_NO_MATCH:
Log.v(TAG, "ERROR_NO_MATCH");
break;
case SpeechRecognizer.ERROR_RECOGNIZER_BUSY:
Log.v(TAG, "ERROR_RECOGNIZER_BUSY");
break;
case SpeechRecognizer.ERROR_SERVER:
Log.v(TAG, "ERROR_SERVER");
break;
case SpeechRecognizer.ERROR_SPEECH_TIMEOUT:
Log.v(TAG, "ERROR_SPEECH_TIMEOUT");
break;
default:
Log.v(TAG, "switch (error) -> default: -> Unknown error: " + error);
break;
}
hideMic();
}
#Override
public void onResults(Bundle results) {
Log.v(TAG, "onResults(Bundle results)");
ArrayList<String> myResults = results.getStringArrayList(
SpeechRecognizer.RESULTS_RECOGNITION
);
if (myResults != null) {
if (myResults.size() > 0) {
String text = myResults.get(0);
Log.v(TAG, "Text: (" + text + ")");
// IN HERE, YOU DO THE SWITCH WITH YOUR COMMANDS
switch(text){
case "stuff":
break;
case "start":
break;
case "stop":
break;
default:
Log.v(TAG, "could not understand(" + text + ")");
break;
}
}
} else {
Log.v(TAG, "NO results in Bundle (getStringArrayList returned null)");
}
}
#Override
public void onPartialResults(Bundle partialResults) {
Log.v(TAG, "onPartialResults(Bundle partialResults)");
}
#Override
public void onEvent(int eventType, Bundle params) {
Log.v(TAG, "onEvent(int eventType, Bundle params)");
}
}
);
}
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.v(TAG, "onStartCommand(Intent intent, int flags, int startId)");
if (intent != null) {
String cmd = intent.getStringExtra(CONSTANTS.VOICE_SERVICE_COMMAND);
if (cmd != null) {
Log.v(TAG, "onStartCommand -> Cmd: " + cmd);
switch (cmd) {
case CONSTANTS.VOICE_SERVICE_COMMAND_LISTEN_START:
// if (isReadyToUse) {
speechRecognizer.startListening(speechIntent);
showMic();
// }
enforceTimeToLive();
break;
case CONSTANTS.VOICE_SERVICE_COMMAND_LISTEN_STOP:
speechRecognizer.stopListening();
hideMic();
break;
case CONSTANTS.VOICE_SERVICE_COMMAND_DIE:
hideMic();
stopSelf();
break;
default:
}
}
}
return super.onStartCommand(intent, flags, startId);
}
#Override
public void onDestroy() {
Log.v(TAG, "onDestroy()");
super.onDestroy();
speechIntent = null;
if (speechRecognizer != null) {
speechRecognizer.stopListening();
speechRecognizer.destroy();
}
// isReadyToUse = false;
if (windowManager != null) {
windowManager.removeView(microphoneView);
windowManager = null;
microphoneView = null;
}
handler = null;
if (timer != null) {
timer.cancel();
}
}
#Override
public IBinder onBind(Intent intent) {
Log.v(TAG, "onBind(Intent intent)");
return null; // no binding, Broadcasted texts only
}
}

solve android chat application

I designed a chat application but if I write text and click on send the application is force closed. I send username, ip and port information to the other activity.
messaging code :
import java.io.UnsupportedEncodingException;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.NotificationManager;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnKeyListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.android.chat.IAppManager;
import com.android.chat.IMService;
import com.android.chat.FriendController;
import com.android.chat.LocalStorageHandler;
import com.android.chat.FriendInfo;
import com.android.chat.MessageInfo;
import com.android.chats.R;
public class Messaging extends Activity {
private static final int MESSAGE_CANNOT_BE_SENT = 0;
public String username;
private EditText messageText;
private EditText messageHistoryText;
private Button sendMessageButton;
private IAppManager imService;
private FriendInfo friend = new FriendInfo();
private LocalStorageHandler localstoragehandler;
private Cursor dbCursor;
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
imService = ((IMService.IMBinder)service).getService();
}
public void onServiceDisconnected(ComponentName className) {
imService = null;
Toast.makeText(Messaging.this, R.string.local_service_stopped,
Toast.LENGTH_SHORT).show();
}
};
#Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.messaging_screen); //messaging_screen);
messageHistoryText = (EditText) findViewById(R.id.messageHistory);
messageText = (EditText) findViewById(R.id.message);
messageText.requestFocus();
sendMessageButton = (Button) findViewById(R.id.sendMessageButton);
Bundle extras = this.getIntent().getExtras();
friend.userName = extras.getString(FriendInfo.USERNAME);
friend.ip = extras.getString(FriendInfo.IP);
friend.port = extras.getString(FriendInfo.PORT);
String msg = extras.getString(MessageInfo.MESSAGETEXT);
setTitle("Messaging with " + friend.userName);
// EditText friendUserName = (EditText) findViewById(R.id.friendUserName);
// friendUserName.setText(friend.userName);
localstoragehandler = new LocalStorageHandler(this);
dbCursor = localstoragehandler.get(friend.userName, IMService.USERNAME );
if (dbCursor.getCount() > 0){
int noOfScorer = 0;
dbCursor.moveToFirst();
while ((!dbCursor.isAfterLast())&&noOfScorer<dbCursor.getCount())
{
noOfScorer++;
this.appendToMessageHistory(dbCursor.getString(2) , dbCursor.getString(3));
dbCursor.moveToNext();
}
}
localstoragehandler.close();
if (msg != null)
{
this.appendToMessageHistory(friend.userName , msg);
((NotificationManager)getSystemService(NOTIFICATION_SERVICE)).cancel((friend.userName+msg).hashCode());
}
sendMessageButton.setOnClickListener(new OnClickListener(){
CharSequence message;
Handler handler = new Handler();
public void onClick(View arg0) {
message = messageText.getText();
if (message.length()>0)
{
appendToMessageHistory(imService.getUsername(), message.toString());
localstoragehandler.insert(imService.getUsername(), friend.userName, message.toString());
messageText.setText("");
Thread thread = new Thread(){
public void run() {
try {
if (imService.sendMessage(imService.getUsername(), friend.userName, message.toString()) == null)
{
handler.post(new Runnable(){
public void run() {
Toast.makeText(getApplicationContext(),R.string.message_cannot_be_sent, Toast.LENGTH_LONG).show();
//showDialog(MESSAGE_CANNOT_BE_SENT);
}
});
}
} catch (UnsupportedEncodingException e) {
Toast.makeText(getApplicationContext(),R.string.message_cannot_be_sent, Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
};
thread.start();
}
}});
messageText.setOnKeyListener(new OnKeyListener(){
public boolean onKey(View v, int keyCode, KeyEvent event)
{
if (keyCode == 66){
sendMessageButton.performClick();
return true;
}
return false;
}
});
}
#Override
protected Dialog onCreateDialog(int id) {
int message = -1;
switch (id)
{
case MESSAGE_CANNOT_BE_SENT:
message = R.string.message_cannot_be_sent;
break;
}
if (message == -1)
{
return null;
}
else
{
return new AlertDialog.Builder(Messaging.this)
.setMessage(message)
.setPositiveButton(R.string.OK, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked OK so do some stuff */
}
})
.create();
}
}
#Override
protected void onPause() {
super.onPause();
unregisterReceiver(messageReceiver);
unbindService(mConnection);
FriendController.setActiveFriend(null);
}
#Override
protected void onResume()
{
super.onResume();
bindService(new Intent(Messaging.this, IMService.class), mConnection , Context.BIND_AUTO_CREATE);
IntentFilter i = new IntentFilter();
i.addAction(IMService.TAKE_MESSAGE);
registerReceiver(messageReceiver, i);
FriendController.setActiveFriend(friend.userName);
}
public class MessageReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent)
{
Bundle extra = intent.getExtras();
String username = extra.getString(MessageInfo.USERID);
String message = extra.getString(MessageInfo.MESSAGETEXT);
if (username != null && message != null)
{
if (friend.userName.equals(username)) {
appendToMessageHistory(username, message);
localstoragehandler.insert(username,imService.getUsername(), message);
}
else {
if (message.length() > 15) {
message = message.substring(0, 15);
}
Toast.makeText(Messaging.this, username + " says '"+
message + "'",
Toast.LENGTH_SHORT).show();
}
}
}
};
private MessageReceiver messageReceiver = new MessageReceiver();
public void appendToMessageHistory(String username, String message) {
if (username != null && message != null) {
messageHistoryText.append(username + ":\n");
messageHistoryText.append(message + "\n");
}
}
#Override
protected void onDestroy() {
super.onDestroy();
if (localstoragehandler != null) {
localstoragehandler.close();
}
if (dbCursor != null) {
dbCursor.close();
}
}
}
logcat message:

if I write text and click on send the application is force closed. I send username, ip and port information to the other activity.
code messageing :
public class Messaging extends Activity {
private static final int MESSAGE_CANNOT_BE_SENT = 0;
public String username;
private EditText messageText;
private EditText messageHistoryText;
private Button sendMessageButton;
private IAppManager imService;
private FriendInfo friend = new ir.android.chat.FriendInfo();
private LocalStorageHandler localstoragehandler;
private Cursor dbCursor;
public static String res="";
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
imService = ((IMService.IMBinder)service).getService();
}
public void onServiceDisconnected(ComponentName className) {
imService = null;
Toast.makeText(Messaging.this, R.string.local_service_stopped,
Toast.LENGTH_SHORT).show();
}
};
#Override
protected void onCreate(Bundle savedInstanceState)
{
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.messaging_screen); //messaging_screen);
messageHistoryText = (EditText) findViewById(R.id.messageHistory);
messageText = (EditText) findViewById(R.id.message);
messageText.requestFocus();
sendMessageButton = (Button) findViewById(R.id.sendMessageButton);
Bundle extras = this.getIntent().getExtras();
friend.userName = extras.getString(FriendInfo.USERNAME);
friend.userNamef = extras.getString(FriendInfo.USERNAMEF);
friend.ip = extras.getString(FriendInfo.IP);
friend.port = extras.getString(FriendInfo.PORT);
String msg = extras.getString(MessageInfo.MESSAGETEXT);
setTitle("Messaging with " + friend.userName);
// EditText friendUserName = (EditText) findViewById(R.id.friendUserName);
// friendUserName.setText(friend.userName);
localstoragehandler = new LocalStorageHandler(this);
dbCursor = localstoragehandler.get(friend.userName, IMService.USERNAME );
if (dbCursor.getCount() > 0){
int noOfScorer = 0;
dbCursor.moveToFirst();
while ((!dbCursor.isAfterLast())&&noOfScorer<dbCursor.getCount())
{
noOfScorer++;
this.appendToMessageHistory(dbCursor.getString(2) , dbCursor.getString(3));
dbCursor.moveToNext();
}
}
localstoragehandler.close();
if (msg != null)
{
this.appendToMessageHistory(friend.userName , msg);
((NotificationManager)getSystemService(NOTIFICATION_SERVICE)).cancel((friend.userName+msg).hashCode());
}
sendMessageButton.setOnClickListener(new OnClickListener(){
CharSequence message;
Handler handler = new Handler();
public void onClick(View arg0) {
message = messageText.getText();
if (message.length()>0)
{
//appendToMessageHistory(friend.userNamef, message.toString());
appendToMessageHistory(friend.userNamef, message.toString());
localstoragehandler.insert(friend.userNamef, friend.userName, message.toString());
messageText.setText("");
Thread thread = new Thread(){
public void run() {
try {
if (imService.sendMessage(friend.userNamef, friend.userName, message.toString()) == null)
{
handler.post(new Runnable(){
public void run() {
Toast.makeText(getApplicationContext(),R.string.message_cannot_be_sent, Toast.LENGTH_LONG).show();
//showDialog(MESSAGE_CANNOT_BE_SENT);
}
});
}
} catch (UnsupportedEncodingException e) {
Toast.makeText(getApplicationContext(),R.string.message_cannot_be_sent, Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
};
thread.start();
}
}});
messageText.setOnKeyListener(new OnKeyListener(){
public boolean onKey(View v, int keyCode, KeyEvent event)
{
if (keyCode == 66){
sendMessageButton.performClick();
return true;
}
return false;
}
});
}
#Override
protected Dialog onCreateDialog(int id) {
int message = -1;
switch (id)
{
case MESSAGE_CANNOT_BE_SENT:
message = R.string.message_cannot_be_sent;
break;
}
if (message == -1)
{
return null;
}
else
{
return new AlertDialog.Builder(Messaging.this)
.setMessage(message)
.setPositiveButton(R.string.OK, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
/* User clicked OK so do some stuff */
}
})
.create();
}
}
#Override
protected void onPause() {
super.onPause();
unregisterReceiver(messageReceiver);
unbindService(mConnection);
FriendController.setActiveFriend(null);
}
#Override
protected void onResume()
{
super.onResume();
bindService(new Intent(Messaging.this, IMService.class), mConnection , Context.BIND_AUTO_CREATE);
IntentFilter i = new IntentFilter();
i.addAction(IMService.TAKE_MESSAGE);
registerReceiver(messageReceiver, i);
FriendController.setActiveFriend(friend.userName);
}
public class MessageReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent)
{
Bundle extra = intent.getExtras();
String username = extra.getString(MessageInfo.USERID);
String message = extra.getString(MessageInfo.MESSAGETEXT);
if (username != null && message != null)
{
if (friend.userName.equals(username)) {
appendToMessageHistory(username, message);
localstoragehandler.insert(username,friend.userNamef, message);
}
else {
if (message.length() > 15) {
message = message.substring(0, 15);
}
Toast.makeText(Messaging.this, username + " says '"+
message + "'",
Toast.LENGTH_SHORT).show();
}
}
}
};
private MessageReceiver messageReceiver = new MessageReceiver();
public void appendToMessageHistory(String username, String message) {
if (username != null && message != null) {
messageHistoryText.append(username + ":\n");
messageHistoryText.append(message + "\n");
}
}
#Override
protected void onDestroy() {
super.onDestroy();
if (localstoragehandler != null) {
localstoragehandler.close();
}
if (dbCursor != null) {
dbCursor.close();
}
}
}
log chat :
http://i.stack.imgur.com/USsul.png

Android connection refuses sometimes (Not all times)

I wrote a WiFi-Direct Code connection and created a connection between them, then I created a ServerSocket on the first side and a Socket on the client side and started sending data between them, the first time I start the application it works Successfully, but when I close the Application and start it again it gives me an exception that says "Connection Refused ECONNREFUSED"
here is my code in the Server side:
package com.example.serverwifidirect;
import java.io.InputStream;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import android.annotation.SuppressLint;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.NetworkInfo;
import android.net.wifi.p2p.WifiP2pDeviceList;
import android.net.wifi.p2p.WifiP2pManager;
import android.net.wifi.p2p.WifiP2pManager.ActionListener;
import android.net.wifi.p2p.WifiP2pManager.Channel;
import android.net.wifi.p2p.WifiP2pManager.PeerListListener;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class BroadcastServer extends BroadcastReceiver
{
#SuppressLint("NewApi")
private WifiP2pManager mManager;
private Channel mChannel;
private Server mActivity;
static boolean temp=false;
Socket client=null;
static boolean isRunning = false;
ServerSocket serverSocket = null;
InetSocketAddress inet;
private void closeConnections()
{
try
{
if(client!=null || serverSocket!=null)
{
if(client!=null)
{
if(client.isInputShutdown()|| client.isOutputShutdown())
{
log("x1");
client.close();
}
if(client.isConnected())
{
log("x2");
client.close();
log("x2.1");
//client.bind(null);
log("x2.2");
}
if(client.isBound())
{
log("x3");
client.close();
}
client=null;
}
}
}
catch(Exception e)
{
log("Error :'(");
e.printStackTrace();
}
}
#SuppressLint("NewApi")
public BroadcastServer(WifiP2pManager manager, Channel channel, Server activity)
{
super();
this.mManager = manager;
this.mChannel = channel;
this.mActivity = activity;
try
{
serverSocket = new ServerSocket(8870);
serverSocket.setReuseAddress(true);
}
catch(Exception e)
{
}
}
#SuppressLint("NewApi")
#Override
public void onReceive(Context context, Intent intent)
{
String action = intent.getAction();
if (WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION.equals(action))
{
int state = intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, -1);
if (state == WifiP2pManager.WIFI_P2P_STATE_ENABLED)
{}
else
{}
}
else if(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action))
{
mManager.requestPeers(mChannel, new PeerListListener()
{
#Override
public void onPeersAvailable(WifiP2pDeviceList list)
{
}
});
} else if (WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION.equals(action))
{
Bundle b = intent.getExtras();
NetworkInfo info = (NetworkInfo)b.get(WifiP2pManager.EXTRA_NETWORK_INFO);
if(info.isFailover())
{
temp=false;
}
else if(info.isConnected())
{
temp=true;
log("c1");
new Thread(new Runnable(){
public void run()
{
try
{
client =serverSocket.accept();
InputStream input=null;
input = client.getInputStream();
log("q3");
while(BroadcastServer.temp)
{
final int n = input.read();
if(n==100)
{
closeConnections();
mManager.cancelConnect(mChannel, new ActionListener() {
#Override
public void onSuccess()
{
log("done");
mManager.removeGroup(mChannel, new ActionListener()
{
#Override
public void onSuccess()
{
log("group removed");
}
#Override
public void onFailure(int reason)
{
log("fail!!!!!");
}
});
}
#Override
public void onFailure(int reason) {
log("fail");
mManager.removeGroup(mChannel, new ActionListener()
{
#Override
public void onSuccess()
{
log("group removed");
}
#Override
public void onFailure(int reason)
{
log("fail!!!!!");
}
});
}
});
}
log("q4");
if(n==-1)
{
log("n = -1");
break;
}
log("n= "+n);
mActivity.runOnUiThread(new Runnable()
{
public void run()
{
Toast.makeText(mActivity.getBaseContext(), "--"+n, Toast.LENGTH_SHORT).show();
}
});
}
log("After loop");
}
catch(Exception e)
{
}
}
});
mActivity.runOnUiThread(new Runnable(){
public void run()
{
//Toast.makeText(mActivity, "Connected to WiFi-Direct!", Toast.LENGTH_SHORT).show();
}
});
log("c2");
}
else if(info.isConnectedOrConnecting())
{
temp=false;
}
else if(!info.isConnected())
{
temp=false;
try
{
if(client!=null || serverSocket!=null)
{
if(client!=null)
{
if(client.isInputShutdown()|| client.isOutputShutdown())
{
log("x1");
client.close();
}
if(client.isConnected())
{
log("x2");
client.close();
log("x2.1");
//client.bind(null);
log("x2.2");
}
if(client.isBound())
{
log("x3");
client.close();
}
client=null;
}
}
}
catch(Exception e)
{
log("Error :'(");
e.printStackTrace();
}
mManager.clearLocalServices(mChannel, new ActionListener()
{
#Override
public void onSuccess()
{
log("success");
}
#Override
public void onFailure(int reason)
{
}
});
}
}
else if (WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION.equals(action))
{
log("Device change Action!");
}
}
public static void log(String shusmu)
{
Log.d("status", shusmu);
}
}
this code is in the Server side, and the following code is in the Client side:
package com.example.wifidirect;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.NetworkInfo;
import android.net.wifi.p2p.WifiP2pConfig;
import android.net.wifi.p2p.WifiP2pDevice;
import android.net.wifi.p2p.WifiP2pDeviceList;
import android.net.wifi.p2p.WifiP2pManager;
import android.net.wifi.p2p.WifiP2pManager.ActionListener;
import android.net.wifi.p2p.WifiP2pManager.Channel;
import android.net.wifi.p2p.WifiP2pManager.PeerListListener;
import android.os.Bundle;
import android.util.Log;
import android.widget.Button;
#SuppressLint("NewApi")
public class WiFiDirectBroadcastReceiver extends BroadcastReceiver
{
static WifiP2pDevice connectedDevice = null;
boolean found=false;
boolean connected = false;
private WifiP2pManager mManager;
private Channel mChannel;
Button find = null;
Activity mActivity = null;
#SuppressLint("NewApi")
public WiFiDirectBroadcastReceiver(WifiP2pManager manager, Channel channel, WifiDirect activity)
{
super();
this.mManager = manager;
this.mChannel = channel;
mActivity = activity;
find = (Button)mActivity.findViewById(R.id.discover);
}
#SuppressLint("NewApi")
#Override
public void onReceive(Context context, Intent intent)
{
String action = intent.getAction();
if (WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION.equals(action))
{
int state = intent.getIntExtra(WifiP2pManager.EXTRA_WIFI_STATE, -1);
if (state == WifiP2pManager.WIFI_P2P_STATE_ENABLED)
{
// Wifi Direct is enabled
} else
{
// Wi-Fi Direct is not enabled
}
}
else if (WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action))
{
mManager.requestPeers(mChannel, new PeerListListener()
{
#Override
public void onPeersAvailable(WifiP2pDeviceList list)
{
WifiP2pDevice d = null;
if(!found)
{
Log.d("status", "2");
Collection<WifiP2pDevice>li = list.getDeviceList();
ArrayList<WifiP2pDevice> arrayList = new ArrayList<WifiP2pDevice>();
Iterator<WifiP2pDevice>peers = li.iterator();
while(peers.hasNext())
{
WifiP2pDevice device = peers.next();
arrayList.add(device);
}
for(int i=0;i<arrayList.size();i++)
{
log("xxx");
log(arrayList.get(i).deviceName);
if(arrayList.get(i).deviceName.equalsIgnoreCase("Android_144b"))
{
d = arrayList.get(i);
arrayList.clear();
found = true;
break;
}
}
}
if(d!=null)
{
WifiP2pConfig config = new WifiP2pConfig();
config.deviceAddress = d.deviceAddress;
if(!connected)
{
mManager.connect(mChannel, config, new ActionListener()
{
#Override
public void onSuccess()
{
connected = true;
}
#Override
public void onFailure(int reason)
{
connected=false;
mManager.cancelConnect(mChannel, new ActionListener()
{
#Override
public void onSuccess()
{
Log.d("status", "success on cancelConnect()");
}
#Override
public void onFailure(int reason)
{
Log.d("status", "Fail on cancelConnect()");
}
});
}
});
}
}
}
});
} else if (WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION.equals(action))
{
Bundle b = intent.getExtras();
NetworkInfo info = (NetworkInfo)b.get(WifiP2pManager.EXTRA_NETWORK_INFO);
if(info.isFailover())
{
connected=false;
Log.d("status", "connection failure!");
}
else if(info.isConnected())
{
connected=true;
find.setEnabled(false);
Log.d("status", "connection is Connected!");
}
else if(info.isConnectedOrConnecting())
{
connected=false;
log("Connecting !!!");
}
else if(!info.isConnected())
{
if(connected)
{
//closeConnections();
connected=false;
}
find.setEnabled(true);
mManager.removeGroup(mChannel, new ActionListener()
{
#Override
public void onSuccess()
{
log("Success disconnect");
}
#Override
public void onFailure(int arg0)
{
log("Fail disconnect");
}
});
}
}
else if (WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION.equals(action))
{}
}
public static void log(String shusmu)
{
Log.d("status", shusmu);
}
}
And this is the class Connection
package com.example.wifidirect;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;
import android.annotation.SuppressLint;
import android.net.wifi.p2p.WifiP2pManager;
import android.net.wifi.p2p.WifiP2pManager.ActionListener;
import android.net.wifi.p2p.WifiP2pManager.Channel;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
#SuppressLint("NewApi")
public class Connection
{
boolean found = false;
OutputStream out=null;
Socket socket = null;
boolean connected =false;
WiFiDirectBroadcastReceiver mReceiver=null;
WifiDirect instance=null;
#SuppressLint("NewApi")
Channel mChannel=null;
WifiP2pManager mManager=null;
public void sendMessage(int msg)
{
try
{
out.write(msg);
}
catch(Exception e)
{
e.printStackTrace();
}
}
public Connection(WiFiDirectBroadcastReceiver mReceiver,WifiDirect instance,Channel mChannel,WifiP2pManager mManager) throws UnknownHostException, IOException
{
this.instance=instance;
this.mReceiver=mReceiver;
this.mChannel=mChannel;
this.mManager= mManager;
socket = null;
Button send = (Button)instance.findViewById(R.id.send);
send.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View arg0)
{
try
{
log("z1");
if(socket==null)
{
log("z2");
Thread t = new Thread(new Runnable()
{
public void run()
{
try
{
log("z3");
socket= new Socket("192.168.49.1",8870);
socket.setReuseAddress(true);
log("z4");
out = socket.getOutputStream();
connected = true;
}
catch(Exception e)
{
e.printStackTrace();
}
}
});
t.setDaemon(false);
t.start();
}
new Thread(new Runnable()
{
public void run()
{
log("trying to Send !");
while(!connected);
sendMessage(10);
log(" Data sent !");
}
}).start();
}
catch(Exception e)
{
log("exception_1");
e.printStackTrace();
log("exception_2");
log(e.getMessage());
}
}
});
}
public void closeConnections()
{
try
{
if(out!=null)
{
out.close();
out=null;
}
if(socket!=null)
{
socket.shutdownInput();
socket.shutdownOutput();
if(socket.isInputShutdown()|| socket.isOutputShutdown())
{
socket.close();
}
if(!socket.isClosed())socket.close();
}
if(socket.isConnected())
{
socket.close();
}
socket=null;
}
catch(Exception e)
{
Log.d("status", "error :( ");
e.printStackTrace();
}
}
public void connect()
{
mManager.discoverPeers(mChannel, new ActionListener()
{
#Override
public void onSuccess()
{
Log.d("status", "1");
}
#Override
public void onFailure(int reason)
{
mManager.cancelConnect(mChannel, new ActionListener() {
#Override
public void onSuccess()
{
Log.d("status", "success cancel connect");
connect();
}
#Override
public void onFailure(int reason)
{
Log.d("status", "failed cancel connect");
}
});
}
});
}
public static void log(String shusmu)
{
Log.d("status", shusmu);
}
}
finally this is my main Activity class
package com.example.wifidirect;
import java.io.IOException;
import java.net.UnknownHostException;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.wifi.WifiManager;
import android.net.wifi.p2p.WifiP2pManager;
import android.net.wifi.p2p.WifiP2pManager.Channel;
import android.net.wifi.p2p.WifiP2pManager.PeerListListener;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class WifiDirect extends Activity
{
WifiP2pManager mManager;
Channel mChannel;
WiFiDirectBroadcastReceiver mReceiver;
PeerListListener listener = null;
IntentFilter mIntentFilter;
String host;
Connection con=null;
PeerListListener myPeerListListener;
#SuppressLint("NewApi")
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.wifi_direct);
StrictMode.enableDefaults();
WifiManager wifiManager = (WifiManager)this.getSystemService(Context.WIFI_SERVICE);
wifiManager.setWifiEnabled(true);
mManager = (WifiP2pManager) getSystemService(Context.WIFI_P2P_SERVICE);
mChannel = mManager.initialize(this, getMainLooper(), null);
mReceiver = new WiFiDirectBroadcastReceiver(mManager, mChannel, this);
mIntentFilter = new IntentFilter();
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_STATE_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_CONNECTION_CHANGED_ACTION);
mIntentFilter.addAction(WifiP2pManager.WIFI_P2P_THIS_DEVICE_CHANGED_ACTION);
try {
con = new Connection(mReceiver,this,mChannel,mManager);
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
final Button discover = (Button)findViewById(R.id.discover);
discover.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
con.connect();
}
});
}
#Override
protected void onResume()
{
super.onResume();
registerReceiver(mReceiver, mIntentFilter);
}
#Override
protected void onPause() {
super.onPause();
}
#SuppressLint("NewApi")
#Override
protected void onDestroy()
{
super.onDestroy();
con.sendMessage(100);
unregisterReceiver(mReceiver);
}
#SuppressLint("NewApi")
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
String action = data.getAction();
if (WifiP2pManager.WIFI_P2P_PEERS_CHANGED_ACTION.equals(action))
{
if (mManager != null)
{
mManager.requestPeers(mChannel, myPeerListListener);
}
}
}
void log(String s)
{
Log.d("status ", s);
}
}

Just in case someone run into similar issue, I was having similar problem of seeing connection refused messages sometimes and fixed this by allowing client thread,to sleep for a second to prevent race conditions. The idea is that once two devices are connected, the ConnectionListener gets fired. After that, both server\client will launch server thread or client thread based on the role. A group owner will issue a server thread and group member will launch a client thread. Sometimes, the client thread will launch before the server thread and those fail to find a server to connect to. So, I added a one-second-sleep for the client to ensure that server thread gets registered first. Now, I don't see the problem happening. Here is my code:
private WifiP2pManager.ConnectionInfoListener connectionListener
= new WifiP2pManager.ConnectionInfoListener(){
#Override
public void onConnectionInfoAvailable(WifiP2pInfo info) {
// TODO Auto-generated method stub
Log.i(TAG, "onConnectionInfoAvailable");
//String groupOwnerAddress = info.groupOwnerAddress.getHostAddress();
if (info.groupFormed && info.isGroupOwner) {
// Do whatever tasks are specific to the group owner.
// One common case is creating a server thread and accepting
// incoming connections.
Log.i(TAG, "Connected as group owner...");
WifiDirectServerThread wifiDirectServerThread = new WifiDirectServerThread(context);
wifiDirectServerThread.execute();
} else if (info.groupFormed) {
// The other device acts as the client. In this case,
// you'll want to create a client thread that connects to the group
// owner.
Log.i(TAG, "Connected as group member...");
Log.i(TAG, "Sleep before launching client thread to avoid race conditions...");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
WifiDirectClientDataThread wifiDirectClientThread = new WifiDirectClientDataThread(info.groupOwnerAddress.getHostAddress(), PORT, context);
wifiDirectClientThread.start();
}
}
};