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Connection to xmpp gives Socket Exception (Permission denied)

i am trying to connect to openfire server through my android app using smack library. when i am connecting to server it gives me and error of
The following addresses failed: '192.168.0.31:5222' failed because java.net.SocketException: socket failed: EACCES (Permission denied)
However i have given a permission of Internet in my manifest.
The code i am using is..
public void init(String mUsername, String mPassword) {
Log.i(TAG, "connect()");
config = XMPPTCPConnectionConfiguration.builder();
config.setServiceName(mServiceName);
config.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
config.setHost(mServiceName);
config.setPort(5222);
config.setDebuggerEnabled(true);
config.setResource("sender");
// config.setCompressionEnabled(true);
config.setUsernameAndPassword(mUsername, mPassword);
XMPPTCPConnection.setUseStreamManagementResumptiodDefault(true);
XMPPTCPConnection.setUseStreamManagementDefault(true);
mConnection = new XMPPTCPConnection(config.build());
mConnection.addConnectionListener(this);
ChatManager.getInstanceFor(mConnection).addChatListener(this);
gson = new Gson();
connectAndLoginAnonymously();
}
public void connectAndLoginAnonymously() {
mRegisterTask = new AsyncTask<Void, Void, Void>() {
#Override
protected Void doInBackground(Void... params) {
try {
mConnection.connect();
DeliveryReceiptManager dm = DeliveryReceiptManager
.getInstanceFor(mConnection);
dm.setAutoReceiptMode(DeliveryReceiptManager.AutoReceiptMode.always);
dm.addReceiptReceivedListener(new ReceiptReceivedListener() {
#Override
public void onReceiptReceived(final String fromid,
final String toid, final String msgid,
final Stanza packet) {
}
});
mConnection.login();
} catch (SmackException | XMPPException | IOException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void res) {
}
};
// execute AsyncTask
mRegisterTask.execute();
}
public void disconnect() {
Log.i(TAG, "disconnect()");
if (mConnection != null) {
mConnection.disconnect();
}
}
//For Creating new User.
public boolean createNewAccount(String username, String newpassword) {
boolean status = false;
if (mConnection == null) {
try {
mConnection.connect();
} catch (SmackException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (XMPPException e) {
e.printStackTrace();
}
}
try {
// String newusername = username + mConnection.getServiceName();
Log.i("service", mConnection.getServiceName());
AccountManager accountManager = AccountManager.getInstance(mConnection);
accountManager.createAccount(username, newpassword);
status = true;
} catch (SmackException.NoResponseException e) {
status = false;
e.printStackTrace();
} catch (XMPPException.XMPPErrorException e) {
e.printStackTrace();
status = false;
} catch (SmackException.NotConnectedException e) {
e.printStackTrace();
status = false;
}
mConnection.disconnect();
return status;
}
From my login Activity when i am calling smackConnection.init(user,password);
it gives me the error of java.net.SocketException permission denied.
The error log is as below.
04-05 18:28:18.142 9575-9575/dhaval.com.chatdemo I/SMACK: connect()
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err:
org.jivesoftware.smack.SmackException$ConnectionException: The following addresses failed: '192.168.0.31:5222' failed because java.net.SocketException: socket failed: EACCES (Permission denied)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectUsingConfiguration(XMPPTCPConnection.java:605)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection.java:839)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at org.jivesoftware.smack.AbstractXMPPConnection.connect(AbstractXMPPConnection.java:365)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at dhaval.com.chatdemo.SmackConnection$1.doInBackground(SmackConnection.java:104)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at dhaval.com.chatdemo.SmackConnection$1.doInBackground(SmackConnection.java:100)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at android.os.AsyncTask$2.call(AsyncTask.java:288)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:237)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
04-05 18:28:18.152 9575-9604/dhaval.com.chatdemo W/System.err: at java.lang.Thread.run(Thread.java:841)
Manifest code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="dhaval.com.chatdemo">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".CreateAccountPage"></activity>
</application>
am i doing anything wrong here? any help would be much appreciated.

Hopefully, you are missing uses-permission INTERNET in your manifest.
<uses-permission android:name="android.permission.INTERNET"></uses-permission>

ConcurrentModificationException on with using google play services

I am new to android programming . I am trying to develop simple gcm test application to register the app on gcm server. the code is
public class MainActivity extends ActionBarActivity implements OnClickListener {
Button btnRegId;
Context context;
EditText etRegId;
GoogleCloudMessaging gcm;
AtomicInteger msgId = new AtomicInteger();
String regid;
public static final String EXTRA_MESSAGE = "message";
public static final String PROPERTY_REG_ID = "registration_id";
private static final String PROPERTY_APP_VERSION = "appVersion";
String SENDER_ID = "507707796382";
private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
static final String TAG = "GCM";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = getApplicationContext();
btnRegId = (Button) findViewById(R.id.btnGetRegId);
etRegId = (EditText) findViewById(R.id.etRegId);
if (checkPlayServices()) {
btnRegId.setOnClickListener(this);
gcm = GoogleCloudMessaging.getInstance(this);
regid = getRegistrationId(context);
if (regid.isEmpty()) {
registerInBackground();
}
} else {
Log.i(TAG, "No valid Google Play Services APK found.");
Toast.makeText(getApplicationContext(), "No valid Google Play Services APK found.", Toast.LENGTH_LONG).show();
}
}
/**
* Gets the current registration ID for application on GCM service.
*
* If result is empty, the app needs to register.
*
* #return registration ID, or empty string if there is no existing
* registration ID.
*/
private String getRegistrationId(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
String registrationId = prefs.getString(PROPERTY_REG_ID, "");
if (registrationId.isEmpty()) {
Log.i(TAG, "Registration not found.");
return "";
}
// Check if app was updated; if so, it must clear the registration ID
// since the existing registration ID is not guaranteed to work with
// the new app version.
int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
int currentVersion = getAppVersion(context);
if (registeredVersion != currentVersion) {
Log.i(TAG, "App version changed.");
return "";
}
return registrationId;
}
/**
* #return Application's {#code SharedPreferences}.
*/
private SharedPreferences getGCMPreferences(Context context) {
// This sample app persists the registration ID in shared preferences, but
// how you store the registration ID in your app is up to you.
return getSharedPreferences(MainActivity.class.getSimpleName(),
Context.MODE_PRIVATE);
}
/**
* #return Application's version code from the {#code PackageManager}.
*/
private static int getAppVersion(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (PackageManager.NameNotFoundException e) {
// should never happen
throw new RuntimeException("Could not get package name: " + e);
}
}
#Override
public void onClick(View view) {
}
#Override
protected void onResume() {
super.onResume();
checkPlayServices();
}
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Log.i("GCM", "This device is not supported.");
finish();
}
return false;
}
return true;
}
/**
* Registers the application with GCM servers asynchronously.
*
* Stores the registration ID and app versionCode in the application's
* shared preferences.
*/
private void registerInBackground() {
new AsyncTask<Void, Void, String>() {
#Override
protected String doInBackground(Void... params) {
String msg = "";
try {
if (gcm == null) {
gcm = GoogleCloudMessaging.getInstance(context);
}
regid = gcm.register(SENDER_ID);
msg = "Device registered, registration ID=" + regid;
// send the registration ID to server over HTTP,
// so it can use GCM/HTTP or CCS to send messages to app.
// The request to server should be authenticated if app
// is using accounts.
sendRegistrationIdToBackend();
// For this demo: we don't need to send it because the device
// will send upstream messages to a server that echo back the
// message using the 'from' address in the message.
// Persist the registration ID - no need to register again.
storeRegistrationId(context, regid);
} catch (IOException ex) {
msg = "Error :" + ex.getMessage();
// If there is an error, don't just keep trying to register.
// Require the user to click a button again, or perform
// exponential back-off.
}
return msg;
}
#Override
protected void onPostExecute(String msg) {
etRegId.setText(msg + "\n");
}
}.execute(null, null, null);
}
/**
* Sends the registration ID to your server over HTTP, so it can use GCM/HTTP
* or CCS to send messages to your app. Not needed for this demo since the
* device sends upstream messages to a server that echoes back the message
* using the 'from' address in the message.
*/
private void sendRegistrationIdToBackend() {
// implementation .
}
/**
* Stores the registration ID and app versionCode in the application's
* {#code SharedPreferences}.
*
* #param context application's context.
* #param regId registration ID
*/
private void storeRegistrationId(Context context, String regId) {
final SharedPreferences prefs = getGCMPreferences(context);
int appVersion = getAppVersion(context);
Log.i(TAG, "Saving regId on app version " + appVersion);
SharedPreferences.Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regId);
editor.putInt(PROPERTY_APP_VERSION, appVersion);
editor.commit();
}
}
while executing this i get an error . My logcat window shows:
03-15 09:48:58.052 2686-2702/com.example.bhaskar.mygcm E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1
Process: com.example.bhaskar.mygcm, PID: 2686
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.SecurityException: Not allowed to start service Intent { act=com.google.android.c2dm.intent.REGISTER pkg=com.google.android.gms (has extras) } without permission com.google.android.c2dm.permission.RECEIVE
at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1710)
at android.app.ContextImpl.startService(ContextImpl.java:1687)
at android.content.ContextWrapper.startService(ContextWrapper.java:515)
at com.google.android.gms.gcm.GoogleCloudMessaging.e(Unknown Source)
at com.google.android.gms.gcm.GoogleCloudMessaging.register(Unknown Source)
at com.example.bhaskar.mygcm.MainActivity$1.doInBackground(MainActivity.java:158)
at com.example.bhaskar.mygcm.MainActivity$1.doInBackground(MainActivity.java:150)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
On line no 158 I have ;
regid = gcm.register(SENDER_ID);
AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.bhaskar.mygcm" >
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="com.google.android.c2dm.permission.C2D_RECEIVE"/>
<permission android:name="com.google.android.c2dm.permission.C2D_MESSAGE" android:protectionLevel="signature"/>
<uses-permission android:name="com.google.android.c2dm.permission.C2D_MESSAGE"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<receiver android:name=".GcmBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.C2D_SEND">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE"/>
<category android:name="com.example.bhaskar.mygcm"/>
</intent-filter>
</receiver>
<service android:name=".GcmMessageHandler"/>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version"/>
</application>
</manifest>
Can anyone help me figure out the bug.Any help would be appreciated.

have you added the
<uses-permission android:name=" com.google.android.c2dm.permission.RECEIVE " />
<uses-permission android:name="com.google.android.c2dm.permission.C2D_MESSAGE">
in your manifest? The logcat says otherwise.

Android Handler Chain NullPointerException

I'm trying to create communication between Activity - Service - Thread by Handlers. Activity starts a Service that starts a Thread. Thread sends request to the server, waits answer and resend it to Service by Handler (work fine). But when i have try to send message from Service's Handler to Activity app closed with NullPointerException. What am i do wrong?
Handler code based on Android Handler changing WeakReference
My Activity
public class ActivityLogin extends Activity{
public static LoginHandler loginHandler = null;
public static class LoginHandler extends Handler {
private WeakReference<ActivityLogin> target = null;
LoginHandler(ActivityLogin target) {
this.target = new WeakReference<ActivityLogin>(target);
}
public void setTarget(ActivityLogin target) {
this.target.clear();
this.target = new WeakReference<ActivityLogin>(target);
}
#Override
public void handleMessage(Message msg) {
ActivityLogin activity = this.target.get();
if(activity == null) return;
String response = msg.getData().getString("RESPONSE");
System.err.println("RESPONSE "+response);
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
Log.d("TAG","---------------------APP STARTED---------------------");
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_login);
if(loginHandler == null) loginHandler = new LoginHandler(this);
else loginHandler.setTarget(this);
}
public void onLogin(View v){
JsonUser user = new JsonUser();
user.login = "Name";
user.password = "Pazzword";
user.device = "4567-753-5768-2343";
Intent intent = new Intent(this,ComService.class);
intent.putExtra("DATA_KEY", new Gson().toJson(user));
this.startService(intent);
}
}
My Service
public class ComService extends Service {
public static ServiceHandler serviceHandler = null;
public static class ServiceHandler extends Handler {
private WeakReference<ComService> target = null;
ServiceHandler(ComService target) {
this.target = new WeakReference<ComService>(target);
}
public void setTarget(ComService target) {
this.target.clear();
this.target = new WeakReference<ComService>(target);
}
#Override
public void handleMessage(Message msg) {
//ComService service = this.target.get();
//Process message (msg) and resend to activity
ActivityLogin.loginHandler.sendMessage(msg);
}
}
#Override
public void onCreate() {
super.onCreate();
if(serviceHandler == null) serviceHandler = new ServiceHandler(this);
else serviceHandler.setTarget(this);
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
String message = intent.getStringExtra("DATA_KEY");
new SendData("http://xxx.xxx.xxx.xxx:27019/WebService.svc/login",message);
stopSelf(startId);
return START_REDELIVER_INTENT;
}
}
My Thread
public class SendData extends Thread {
private String requestUrl;
private String message;
public SendData(String requestUrl, String message){
super();
this.requestUrl = requestUrl;
this.message = message;
this.start();
}
public void run(){
String serverResponse = request();
if(serverResponse == null) return;
System.err.println(serverResponse);
Message msg = new Message();
Bundle bundle = new Bundle();
bundle.putString("RESPONSE", serverResponse);
msg.setData(bundle);
ComService.serviceHandler.sendMessage(msg);
}
private String request(){...}//if need, i can post request code too
}
UPDATE
04-15 18:36:35.292 24524-24524/com.example.test E/Trace﹕ error opening trace file: No such file or directory (2)
04-15 18:36:35.332 24524-24524/com.example.test D/TAG﹕ ---------------------APP STARTED---------------------
04-15 18:36:35.462 24524-24524/com.example.test D/libEGL﹕ loaded /system/lib/egl/libEGL_mali.so
04-15 18:36:35.462 24524-24524/com.example.test D/libEGL﹕ loaded /system/lib/egl/libGLESv1_CM_mali.so
04-15 18:36:35.462 24524-24524/com.example.test D/libEGL﹕ loaded /system/lib/egl/libGLESv2_mali.so
04-15 18:36:35.492 24524-24524/com.example.test D/OpenGLRenderer﹕ Enabling debug mode 0
04-15 18:36:36.442 24554-24554/com.example.test:background E/Trace﹕ error opening trace file: No such file or directory (2)
04-15 18:36:36.682 24554-24567/com.example.test:background W/System.err﹕ {"status":{"success":false,"message":"some_text"},"result":null}
04-15 18:36:36.682 24554-24554/com.example.test:background D/AndroidRuntime﹕ Shutting down VM
04-15 18:36:36.682 24554-24554/com.example.test:background W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x41712300)
04-15 18:36:36.682 24554-24554/com.example.test:background E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.NullPointerException
at com.example.test.ComService$ServiceHandler.handleMessage(ComService.java:31)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
AndroidManifext.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="14"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-feature android:name="android.hardware.camera" android:required="true" />
<application android:label="#string/app_name" android:icon="#drawable/ic_launcher"
android:theme="#android:style/Theme.Holo.Light.NoActionBar.Fullscreen">
<activity android:name=".ActivityLogin"
android:label="#string/app_name"
android:windowSoftInputMode="stateHidden"
android:theme="#android:style/Theme.Holo.Light.NoActionBar.Fullscreen">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<service android:name=".ComService"
android:exported="false"
android:process=":background"
/>
</application>
</manifest>

In conclusion, i deleted Service from my application. Android Service is cancer tumor, threads without benefits. It's just my opinion.

Unable to instantiate application java.lang.RuntimeException:...BackupDB cannot be cast to android.app.Application

MANIFEST:(partial view)
MainActivity, program immediately terminates and issues the messages in the Log.
It should have started showing the buttons to select options to continue execution.
After days of researching this forum, I found postings that suggest to place the BackupDb inside the application in the Manifest.
After doing that, I ended up with the message in the log.
Having exhausted my research venues, I'd like to know what could be the problem and how to solve it.
MANIFEST:(partial view)
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.peter.databasetest"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<supports-screens
android:xlargeScreens="true"
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="false"
/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme"
**android:name="com.peter.databasetest.BackupDB">**
<activity
android:name="com.peter.databasetest.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".CheckDatabase"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.CHECKDATABASE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".CheckSDcard"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.CHECKSDCARD" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name="com.peter.databasetest.Insert"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.peter.databasetest.INSERT" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
MainActivity: Calls checkSDcard and CheckDatabase. Checks if there is SDCard present and the database in main, exists.
public class MainActivity extends Activity implements OnClickListener {
DBAdapter db;
Button insertButton; //ADD A NEW RECORD
Button listAllButton; //LIST ALL
Button cancelButton; //CANCEL PGM
Button backupDbButton; //REQUEST BACKUP DB TO SDCARD
Button restoreButton; //RESTORE DB FROM SDCARD TO MAIN
Button memsizeButton; //SHOW MEMORY SIZES ON DEVICE
int retcode;
int chk;
String message;
public Context context;
public static final String NO_DB ="Database does not exist. Backup is not possible";
public static final String DB_PB ="ERROR- Check log";
public static final String UNWR_SDCARD ="Your SDCard must be set to writable. Check the card lock";
public static final String NO_SDCARD ="No SDcard detected. No backup is possible";
public static final String BKP_OK = "Backup was SUCCESSFUL.";
public static final String BKP_NOK = "Backup FAILED. ";
static final int SD_CHECK = 1;
static final int DB_CHECK = 2;
static final int BK_CHECK = 3;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
insertButton = (Button) findViewById(R.id.insertButton);
listAllButton = (Button) findViewById(R.id.listAllButton);
cancelButton = (Button) findViewById(R.id.cancelButton);
backupDbButton = (Button) findViewById(R.id.backupDbButton);
restoreButton = (Button) findViewById(R.id.restoreButton);
memsizeButton = (Button) findViewById(R.id. memsizeButton);
insertButton.setOnClickListener(this); //insert record into DB
listAllButton.setOnClickListener(this); //list ALL records from DB
cancelButton.setOnClickListener(this); //cancel the program
backupDbButton.setOnClickListener(this); //request backup to sdcard
restoreButton.setOnClickListener(this); //request restore from sdcard
memsizeButton.setOnClickListener(this); //Get Meory sizes
public void onClick(View v ) {
if (v == insertButton) {
startActivity(new Intent(getApplicationContext(), Insert.class));
}else if (v == listAllButton){
startActivity (new Intent(MainActivity.this, ListDr.class));
}else if (v == backupDbButton){
**Intent checksd = new Intent(this,CheckSDcard.class);**
**startActivityForResult(checksd, SD_CHECK);**
}else if (v == restoreButton) {
startActivity (new Intent(MainActivity.this,RestoreDB.class));
}else if (v == memsizeButton) {
startActivity (new Intent(MainActivity.this,GetMemorySizes.class));
}else if (v == cancelButton){
finish();
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == SD_CHECK && resultCode == RESULT_OK) {
Intent checkdb = new Intent(MainActivity.this,CheckDatabase.class);
startActivityForResult(checkdb, DB_CHECK);
}else if (requestCode == DB_CHECK && resultCode == RESULT_OK){
**Intent backup = new Intent(MainActivity.this,BackupDB.class);**
**startActivityForResult(backup, BK_CHECK);**
}else if (requestCode == BK_CHECK && resultCode == RESULT_OK){
message = BKP_OK;
SendMessageDialog(message);
finish();
}
if(resultCode == RESULT_CANCELED && resultCode == -1){
message = NO_DB;
SendMessageDialog(message);
finish();
}else if(resultCode == RESULT_CANCELED && resultCode == -2) {
message = DB_PB;
SendMessageDialog(message);
finish();
}
}
BackupDb: Copies the database to the SDCARD.
package com.peter.databasetest;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import com.peter.databasetest.DBAdapter;
public class BackupDB extends AsyncTask<Void, Void, Integer> {
DBAdapter db;
intrc= -10;
intretcode;
intchk;
Stringmessage;
String mypackage;
public Context context;
public static String FOLDER_NAME = "DBfolder";
public static final String DATABASE_NAME = "UserDB.db";
public static final String DATABASE_BACKUP= "UserDB.db";
public static final String BKP_OK = "Backup was SUCCESSFUL.";
public static final String BKP_NOK = "Backup FAILED. ";
#Override
protected void onPreExecute() {
// GET PACKAGE NAME
mypackage = context.getApplicationContext().getPackageName() ;
}
// START BACKUP TO SDCARD
#Override
protected Integer doInBackground(Void... params) {
// DOING BACKUP
Log.i("00000" , "STARTING BACKUP...BACKUP ");
File sd = Environment.getExternalStorageDirectory();
File data = Environment.getDataDirectory();
CREATE A FOLDER /mnt/sdcard<packagename>FOLDER_NAME if it does not exist
File folder = new File(Environment.getExternalStorageDirectory()
+ "/"
+ mypackage
+ "/"
+ FOLDER_NAME);
if(!folder.exists()) {
if (folder.mkdirs()) ;
}
// GET THE PATH OF THE BACKUP ON THE SDCARD
FilefileBackupDir = new File(Environment.getExternalStorageDirectory()
+ "/"
+mypackage
+ "/"
+ FOLDER_NAME
+"/"
+ DATABASE_BACKUP) ;
// IF WE HAVE A BACKUP ON SDCARD, DELETE IT TO MAKE ROOM FOR THE NEW BACKUP
if (fileBackupDir.exists()) {
fileBackupDir.delete();
}else {
* DO NOTHING */
}
// GET CURRENT DB PATH FOR THE COPY
String currentDBPath = "/data/" + mypackage + "/databases/"+ DATABASE_NAME;
// GET CURRENT DB PATH FOR THE BACKUP
String backupDBPath = "/" + mypackage + "/" +FOLDER_NAME + "/" + DATABASE_BACKUP;
FilecurrDB = new File(data, currentDBPath) ;
FilebkpDB = new File(sd, backupDBPath);
FileChannel from = null;
try {
from = new FileInputStream(currDB).getChannel();
} catch (FileNotFoundException e) {
e.printStackTrace();
}
FileChannel to = null;
try {
to = new FileOutputStream(bkpDB).getChannel();
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
to.transferFrom(from, 0, from.size());
} catch (IOException e) {
e.printStackTrace();
}
try {
from.close();
} catch (IOException e) {
e.printStackTrace();
}
try {
to.close();
} catch (IOException e) {
e.printStackTrace();
}
retcode = 0;
returnretcode;
// end DoInBackgroung
protectedvoid onPostExecute(Integer retcode, String message) {
if(retcode == 0) {
message = BKP_OK;
SendMessageDialog(message);
}else {
message = BKP_NOK;
SendMessageDialog(message);
}
}
public void SendMessageDialog(String message) {
if (message == BKP_OK ) {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setTitle("My Database")
.setMessage(message) // Title of the dialog
.setCancelable(true) // Does allow the use of Back Button on the hardware
.setIcon(R.drawable.ecg)// da picture
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
}else {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setTitle("My Database")
.setMessage(message) // Title of the dialog
.setCancelable(true) // Does allow the use of Back Button on the hardware
.setIcon(R.drawable.bad)// da picture
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
}
}
}
Logcat:
02-12 07:36:06.015: E/AndroidRuntime(987): FATAL EXCEPTION: main
02-12 07:36:06.015: E/AndroidRuntime(987): java.lang.RuntimeException: Unable to instantiate application com.peter.databasetest.BackupDB:
: com.peter.databasetest.BackupDB cannot be cast to android.app.Application
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.LoadedApk.makeApplication(LoadedApk.java:501)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4124)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.ActivityThread.access$1300(ActivityThread.java:130)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.os.Handler.dispatchMessage(Handler.java:99)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.os.Looper.loop(Looper.java:137)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.ActivityThread.main(ActivityThread.java:4745)
02-12 07:36:06.015: E/AndroidRuntime(987): at java.lang.reflect.Method.invokeNative(Native Method)
02-12 07:36:06.015: E/AndroidRuntime(987): at java.lang.reflect.Method.invoke(Method.java:511)
02-12 07:36:06.015: E/AndroidRuntime(987): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
02-12 07:36:06.015: E/AndroidRuntime(987): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-12 07:36:06.015: E/AndroidRuntime(987): at dalvik.system.NativeStart.main(Native Method)
02-12 07:36:06.015: E/AndroidRuntime(987): Caused by: java.lang.ClassCastException: com.peter.databasetest.BackupDB cannot be cast to android.app.Application
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.Instrumentation.newApplication(Instrumentation.java:982)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.Instrumentation.newApplication(Instrumentation.java:967)
02-12 07:36:06.015: E/AndroidRuntime(987): at android.app.LoadedApk.makeApplication(LoadedApk.java:496)
02-12 07:36:06.015: E/AndroidRuntime(987): ... 11 more
Comment:
I removed the BackupDb from the application and reinstated it as activity.
<activity
android:name=".BackupDB"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.peter.databasetest.BACKUPDB" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
The program now brings up the buttons as expected, but when trying the backup I still get the same message as in the earlier log. (Catch-22?)
Most current log:
02-12 13:00:16.569: W/dalvikvm(30656): threadid=1: thread exiting with uncaught exception (group=0x40a13300)
02-12 13:00:16.650: E/AndroidRuntime(30656): FATAL EXCEPTION: main
02-12 13:00:16.650: E/AndroidRuntime(30656): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.peter.databasetest/com.peter.databasetest.BackupDB}: java.lang.ClassCastException: com.peter.databasetest.BackupDB cannot be cast to android.app.Activity
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.app.ActivityThread.access$600(ActivityThread.java:130)
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.os.Handler.dispatchMessage(Handler.java:99)
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.os.Looper.loop(Looper.java:137)
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.app.ActivityThread.main(ActivityThread.java:4745)
02-12 13:00:16.650: E/AndroidRuntime(30656): at java.lang.reflect.Method.invokeNative(Native Method)
02-12 13:00:16.650: E/AndroidRuntime(30656): at java.lang.reflect.Method.invoke(Method.java:511)
02-12 13:00:16.650: E/AndroidRuntime(30656): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
02-12 13:00:16.650: E/AndroidRuntime(30656): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
02-12 13:00:16.650: E/AndroidRuntime(30656): at dalvik.system.NativeStart.main(Native Method)
02-12 13:00:16.650: E/AndroidRuntime(30656): Caused by: java.lang.ClassCastException: com.peter.databasetest.BackupDB cannot be cast to android.app.Activity
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
02-12 13:00:16.650: E/AndroidRuntime(30656): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
02-12 13:00:16.650: E/AndroidRuntime(30656): ... 11 more
>Question:
>Is there any known limitation calling an AsyncTask by way of startActivityForResult?
>Could this be a factor?

The problem is in the Manifest file, you are setting your application:name to be te BackupDB class and this class is only an AsyncTask not an Application.
As can be seen on the explanation of "android:name":
An optional name of a class implementing the overall
android.app.Application for this package. [string]

Android - java.lang.RuntimeException:App is crashing as soon as it launches

I am trying to send GPS coordinates to server in android, but my app is crashing as soon as i run it, i am new to android so i'm not getting how to resolve this
Here is my logcat file
01-23 14:03:40.220: E/AndroidRuntime(880): FATAL EXCEPTION: main
01-23 14:03:40.220: E/AndroidRuntime(880): Process: com.example.server2, PID: 880
01-23 14:03:40.220: E/AndroidRuntime(880): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.server2/com.example.server2.MainActivity}: java.lang.IllegalArgumentException: invalid provider: null
01-23 14:03:40.220: E/AndroidRuntime(880): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
01-23 14:03:40.220: E/AndroidRuntime(880):at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.app.ActivityThread.access$800(ActivityThread.java:135)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.os.Handler.dispatchMessage(Handler.java:102)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.os.Looper.loop(Looper.java:136)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.app.ActivityThread.main(ActivityThread.java:5017)
01-23 14:03:40.220: E/AndroidRuntime(880): at java.lang.reflect.Method.invokeNative(Native Method)
01-23 14:03:40.220: E/AndroidRuntime(880): at java.lang.reflect.Method.invoke(Method.java:515)
01-23 14:03:40.220: E/AndroidRuntime(880): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
01-23 14:03:40.220: E/AndroidRuntime(880): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
01-23 14:03:40.220: E/AndroidRuntime(880): at dalvik.system.NativeStart.main(Native Method)
01-23 14:03:40.220: E/AndroidRuntime(880): Caused by: java.lang.IllegalArgumentException: invalid provider: null
01-23 14:03:40.220: E/AndroidRuntime(880): at android.location.LocationManager.checkProvider(LocationManager.java:1623)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.location.LocationManager.getLastKnownLocation(LocationManager.java:1167)
01-23 14:03:40.220: E/AndroidRuntime(880): at com.example.server2.MainActivity.onCreate(MainActivity.java:71)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.app.Activity.performCreate(Activity.java:5231)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
01-23 14:03:40.220: E/AndroidRuntime(880): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
And here is my MainActivity.java:
public class MainActivity extends Activity implements LocationListener {
private TextView latituteField;
private TextView longitudeField;
private LocationManager locationManager;
private String provider;
String lat,lng;
EditText etResponse;
TextView tvIsConnected;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// get reference to the views
etResponse = (EditText) findViewById(R.id.etResponse);
tvIsConnected = (TextView) findViewById(R.id.tvIsConnected);
// check if you are connected or not
if(isConnected()){
tvIsConnected.setBackgroundColor(0xFF00CC00);
tvIsConnected.setText("You are conncted");
}
else{
tvIsConnected.setText("You are NOT conncted");
}
latituteField = (TextView) findViewById(R.id.TextView02);
longitudeField = (TextView) findViewById(R.id.TextView04);
// Get the location manager
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
// Define the criteria how to select the locatioin provider -> use
// default
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
// Initialize the location fields
if (location != null) {
System.out.println("Provider " + provider + " has been selected.");
onLocationChanged(location);
} else {
latituteField.setText("Location not available");
longitudeField.setText("Location not available");
}
// call AsynTask to perform network operation on separate thread
new HttpAsyncTask().execute("http://182.18.144.140:80");
}
public static String GET(String url){
InputStream inputStream = null;
String result = "";
try {
// create HttpClient
HttpClient httpclient = new DefaultHttpClient();
// make GET request to the given URL
HttpResponse httpResponse = httpclient.execute(new HttpGet(url));
// receive response as inputStream
inputStream = httpResponse.getEntity().getContent();
// convert inputstream to string
if(inputStream != null)
result = convertInputStreamToString(inputStream);
else
result = "Did not work!";
} catch (Exception e) {
Log.d("InputStream", e.getLocalizedMessage());
}
return result;
}
private static String convertInputStreamToString(InputStream inputStream) throws IOException{
BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
String line = "";
String result = "";
while((line = bufferedReader.readLine()) != null)
result += line;
inputStream.close();
return result;
}
public boolean isConnected(){
ConnectivityManager connMgr = (ConnectivityManager) getSystemService(this.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected())
return true;
else
return false;
}
#Override
public void onLocationChanged(Location location) {
lat = Double.toString(location.getLatitude());
lng = Double.toString (location.getLongitude());
latituteField.setText(String.valueOf(lat));
longitudeField.setText(String.valueOf(lng));
// TODO Auto-generated method stub
}
#Override
public void onProviderDisabled(String arg0) {
// TODO Auto-generated method stub
}
#Override
public void onProviderEnabled(String arg0) {
// TODO Auto-generated method stub
}
#Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
// TODO Auto-generated method stub
}
private class HttpAsyncTask extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... urls) {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://182.18.144.140:80");
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
// nameValuePairs.add(new BasicNameValuePair("android", editText1.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("LAT", lat));
nameValuePairs.add(new BasicNameValuePair("LON", lng));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
try {
httpclient.execute(httppost);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
} catch (IOException e) {
// TODO Auto-generated catch block
Log.i("HTTP Failed", e.toString());
}
return null;
}
// onPostExecute displays the results of the AsyncTask.
#Override
protected void onPostExecute(String result) {
Toast.makeText(getBaseContext(), "Received!", Toast.LENGTH_LONG).show();
etResponse.setText(result);
}
}
}
And my manifest.xml is like this
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.server2"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.server2.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

provider is null. You declare it here
private String provider;
but you never initialize it properly.
This line is returning null
provider = locationManager.getBestProvider(criteria, false);
which is causing your initial exception at this line
Location location = locationManager.getLastKnownLocation(provider);
you can see that by stepping back through the stacktrace.
Debug that and see why provider is null.

i can see a couple things that might have a problem here:
provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
provider is null at this point, and also you need to set the permissions to get fine or coarse user location.