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Binding few activities to one service - class which connected treated like service - can't destroy activity

I will start from my approach I want to have one service which is running even if none of application screen is visible for user. This service will scan for beacons.
Every screen of application needs to get access to method of service so I used binding to service here.
I designed serviceconnector class which will be connecting Activities with service, this class look like this.
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
public class ServiceConnector {
Context context;
BeaconScanningService scanningService;
boolean mBound = false;
public ServiceConnector(Context context) {
LogShower.printLogs("Service Connector created");
this.context = context;
createBinding();
}
public void createBinding()
{
Intent intent = new Intent(context, BeaconScanningService.class);
if(scanningService.isBeaconScanningServiceRunning())
{
LogShower.printLogs("Service is already running.");
context.bindService(intent, mConnection, 0);
}
else
{
LogShower.printLogs("Service is not running yet.");
context.startService(new Intent(context, BeaconScanningService.class));
context.bindService(intent, mConnection, 0);
}
}
public void startScanning()
{
LogShower.printLogs("Start Scanning.");
scanningService.startBeaconScanner();
}
public void stopScanning()
{
LogShower.printLogs("Stop Scanning.");
scanningService.stopBeaconScanner();
}
public void destroyBinding()
{
if (mBound) {
scanningService.unbindService(mConnection);
mBound = false;
}
}
/** Defines callbacks for service binding, passed to bindService() */
private ServiceConnection mConnection = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName className,
IBinder service)
{
LogShower.printLogs("onServiceConnected");
// We've bound to LocalService, cast the IBinder and get LocalService instance
BeaconScanningService.LocalBinder binder = (BeaconScanningService.LocalBinder) service;
scanningService = binder.getService();
mBound = true;
}
#Override
public void onServiceDisconnected(ComponentName arg0) {
LogShower.printLogs("onServiceDisconnected");
mBound = false;
}
};
}
This is activity when I make binding and try to unbind
import android.app.Activity;
import android.os.Bundle;
public class StartScreen extends Activity
{
ServiceConnector serviceConnector ;
#Override
protected void onCreate (Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.starting_screen_layout);
serviceConnector = new ServiceConnector(this);
}
#Override
protected void onDestroy ()
{
serviceConnector.destroyBinding();
super.onDestroy();
}
}
Name of service is BeaconScanningService and this is my manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.bka.tog.ole" >
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".ZooBeacon"
android:label="#string/app_name" >
</activity>
<service android:enabled="true" android:name=".beaconeserviceandconnector.BeaconScanningService">
</service>
<activity
android:name=".StartScreen"
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>
The problem is that I don't know why my ServiceConnector class is interprete as Service during unbinding process or just I can't make analysis of this logcat.
3405-3405/com.bka.tog.ole E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.bka.tog.ole, PID: 3405
java.lang.RuntimeException: Unable to destroy activity {com.bka.tog.ole/com.bka.tog.ole.StartScreen}: java.lang.IllegalArgumentException: Service not registered: com.bka.tog.ole.beaconeserviceandconnector.ServiceConnector$1#41d2f8d0
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3647)
at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3665)
at android.app.ActivityThread.access$1400(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1299)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5212)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: Service not registered: com.bka.tog.ole.beaconeserviceandconnector.ServiceConnector$1#41d2f8d0
at android.app.LoadedApk.forgetServiceDispatcher(LoadedApk.java:973)
at android.app.ContextImpl.unbindService(ContextImpl.java:1671)
at android.content.ContextWrapper.unbindService(ContextWrapper.java:536)
at com.bka.tog.ole.beaconeserviceandconnector.ServiceConnector.destroyBinding(ServiceConnector.java:59)
at com.bka.tog.ole.StartScreen.onDestroy(StartScreen.java:27)
at android.app.Activity.performDestroy(Activity.java:5412)
at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1118)
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3634)
            at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3665)
            at android.app.ActivityThread.access$1400(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1299)
            at android.os.Handler.dispatchMessage(Handler.java:106)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5212)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
            at dalvik.system.NativeStart.main(Native Method)
What is the reason of this behavior?

In my ServiceConnector class should be:
context.unbindService(mConnection);
instead of this line:
scanningService.unbindService(mConnection);
I don't know how this misscoding come from, but I lost few hours, so be sure that you unbind from context of activity.
Normally i would delete this question, but one person make it favorite so I want to show what was the reason of my error.

loginButton.setFragment(this); crashes app

I'm trying to make an app that simply logs into facebook and then logs out. My app would compile and load however adding the line: loginButton.setFragment(this) causes a compilation which I have fixed by using the package android.support.v4.app.Fragment rather than android.app.Fragment. The issue is that now my app crashes whenever I try to run it.
This is my MainFragment.java
//MainFragment.java
//import android.app.Fragment;
import android.support.v4.app.Fragment;
import android.content.Intent;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.facebook.AccessToken;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.Profile;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
/**
* A placeholder fragment containing a simple view.
*/
public class MainFragment extends Fragment {
private CallbackManager mCallBackManager;
private TextView mTextDetails;
private FacebookCallback<LoginResult> mCallBack = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
AccessToken accessToken = loginResult.getAccessToken();
Profile profile = Profile.getCurrentProfile();
if (profile != null){
mTextDetails.setText("Welcome" + profile.getName());
}
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException e) {
}
};
public MainFragment() {
}
#Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getActivity().getApplicationContext());
mCallBackManager=CallbackManager.Factory.create();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_main, container, false);
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
LoginButton loginButton = (LoginButton) view.findViewById(R.id.login_button);
loginButton.setReadPermissions("user_friends", "user_photos");
loginButton.setFragment(this);
loginButton.registerCallback(mCallBackManager, mCallBack);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data){
super.onActivityResult(requestCode, resultCode, data);
mCallBackManager.onActivityResult(requestCode, resultCode, data);
}
}
This is my MainActivity.java
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Here is my manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.stan.facebooktestexactexample" >
<uses-permission
android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:name=".MyApplication"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="#string/app_id"/>
<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>
<activity
android:name="com.facebook.FacebookActivity"
android:configChanges=
"keyboard|keyboardHidden|screenLayout|screenSize|orientation"
android:theme="#android:style/Theme.Translucent.NoTitleBar"
android:label="#string/app_name" />
</application>
</manifest>
And here is my MainFragment layout file
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:facebook="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivityFragment">
<TextView
android:text="#+id/text_details"
android:layout_width="match_parent"
android:gravity="center"
android:layout_above="#+id/login_button"
android:layout_height="wrap_content" />
<com.facebook.login.widget.LoginButton
android:id="#+id/login_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginTop="30dp"
android:layout_marginBottom="30dp" />
</RelativeLayout>
and here is the logcat
--------- beginning of crash
07-25 05:12:55.211 2473-2473/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.stan.facebooktestexactexample, PID: 2473
java.lang.RuntimeException: Unable to instantiate application com.example.stan.facebooktestexactexample.MyApplication: java.lang.ClassNotFoundException: Didn't find class "com.example.stan.facebooktestexactexample.MyApplication" on path: DexPathList[[zip file "/data/app/com.example.stan.facebooktestexactexample-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:563)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4529)
at android.app.ActivityThread.access$1500(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.stan.facebooktestexactexample.MyApplication" on path: DexPathList[[zip file "/data/app/com.example.stan.facebooktestexactexample-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newApplication(Instrumentation.java:980)
at android.app.LoadedApk.makeApplication(LoadedApk.java:558)
            at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4529)
            at android.app.ActivityThread.access$1500(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1364)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5257)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Suppressed: java.lang.ClassNotFoundException: com.example.stan.facebooktestexactexample.MyApplication
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
Please Help!!

if you set android:name=".MyApplication" on manifest you have to create MyApplication class.If you dont want that remove it or create class as
public class MyAppilcation extends Application{
...
}
it is used to declare global variables.
see this link How to declare global variables in Android?

Android Studio configuration still incorrect along with app stopping in emulator

I am trying to build a TTS for a school project. When I click run it says configuration still incorrect. However, the emulator still comes up, but when I click on the app to run it says it has stopped. I am very new to Android Studio so sorry if this seems like a dumb question. Here is what I have:
package com.example.james.texttospeech;
import android.os.Bundle;
import android.app.Activity;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.view.View;
import android.widget.EditText;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.content.Intent;
import java.util.Locale;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener, OnInitListener {
//TTS object
private TextToSpeech myTTS;
//status check code
private int MY_DATA_CHECK_CODE = 0;
//create the Activity
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//get a reference to the button element listed in the XML layout
Button speakButton = (Button)findViewById(R.id.speak);
//listen for clicks
speakButton.setOnClickListener(this);
//check for TTS data
Intent checkTTSIntent = new Intent();
checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkTTSIntent, MY_DATA_CHECK_CODE);
}
//respond to button clicks
public void onClick(View v) {
//get the text entered
EditText enteredText = (EditText)findViewById(R.id.enter);
String words = enteredText.getText().toString();
speakWords(words);
}
//speak the user text
private void speakWords(String speech) {
//speak straight away
myTTS.speak(speech, TextToSpeech.QUEUE_FLUSH, null);
}
//act on result of TTS data check
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == MY_DATA_CHECK_CODE) {
if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
//the user has the necessary data - create the TTS
myTTS = new TextToSpeech(this, this);
}
else {
//no data - install it now
Intent installTTSIntent = new Intent();
installTTSIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
startActivity(installTTSIntent);
}
}
}
//setup TTS
public void onInit(int initStatus) {
//check for successful instantiation
if (initStatus == TextToSpeech.SUCCESS) {
if(myTTS.isLanguageAvailable(Locale.US)==TextToSpeech.LANG_AVAILABLE)
myTTS.setLanguage(Locale.US);
}
else if (initStatus == TextToSpeech.ERROR) {
Toast.makeText(this, "Sorry! Text To Speech failed...", Toast.LENGTH_LONG).show();
}
}
}
Here is the logcat I know it's not pretty:
03-05 00:15:46.389 2264-2264/com.example.james.texttospeech D/AndroidRuntime﹕ Shutting down VM
--------- beginning of crash
03-05 00:15:46.390 2264-2264/com.example.james.texttospeech E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.james.texttospeech, PID: 2264
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.james.texttospeech/com.example.james.texttospeech.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.james.texttospeech.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.james.texttospeech-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.james.texttospeech.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.james.texttospeech-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1065)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2199)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
   at android.app.ActivityThread.access$800(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5221)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Suppressed: java.lang.ClassNotFoundException: com.example.james.texttospeech.MainActivity
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 13 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
Here is the AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.james.texttospeech" >
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<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>
</application>
</manifest>

Unable to run app android java.lang.NullPointerException

I started to learn Android a few days ago, and I'm stuck developing this app, what it does is basically connect to an API using volley, but when I try to run the app in my smartphone I get the following error:
-25 10:17:46.851 24476-24476/com.representemais E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.rep, PID: 24476
java.lang.NullPointerException
at com.rep.app.principal.InicioActivity$AutenticacaoLocalTask$1.onResponse(InicioActivity.java:89)
at com.representemais.app.principal.InicioActivity$AutenticacaoLocalTask$1.onResponse(InicioActivity.java:84)
at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5102)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
This is the InicioActivity:
package com.rep.app.principal;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.VolleyLog;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import com.rep.R;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
public class InicioActivity extends SherlockFragmentActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
AutenticacaoLocalTask mAutenticacaoLocalTask = new AutenticacaoLocalTask();
mAutenticacaoLocalTask.execute((Void) null);
}
private TextView txtDisplay;
RequestQueue queue = Volley.newRequestQueue(this);
public class AutenticacaoLocalTask extends AsyncTask<Void, Void, Boolean> {
#Override
protected Boolean doInBackground(Void... params) {
try {
txtDisplay = (TextView) findViewById(R.id.txtDisplay);
String url = "http://192.168.1.15/rep-api/api/clients";
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.GET,
url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
txtDisplay.setText("Response => "+response.toString());
findViewById(R.id.progressBar1).setVisibility(View.GONE);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("Error: " + error.getMessage());
}
})
{
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("X-API-TOKEN", "99KI9Gj68CgCf70deM22Ka64chef2C40Gm2lFJ2J0G9JkD0bDAcbFfd19MfacGf3FFm8CM1hG0eDiIk8");
return headers;
}
};
queue.add(jsonObjReq);
return true;
} catch (Exception e) {
Log.e("RM", e.getMessage());
return false;
}
}
#Override
protected void onPostExecute(final Boolean success) {
}
#Override
protected void onCancelled() {
}
}
And the Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rep"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme">
<activity
android:name=".app.principal.InicioActivity"
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=".app.login.LoginActivity"
android:configChanges="keyboardHidden"
android:label="#string/app_name">
</activity>
<activity
android:name=".app.principal.MainActivity"
android:label="#string/app_name"></activity>
<activity android:name=".app.cliente.ClienteDetalheActivity"
android:label="#string/app_name"></activity>
<activity android:name=".app.login.LoginTelaBloqueada"
android:label="#string/app_name"></activity>
</application>
</manifest>

I think your forget to
setContentView(R.layout.your_layout);
You should set layout in your onCreate(...) method and then reference TextView.
Correct:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layout);
txtDisplay = (TextView) findViewById(R.id.txtDisplay);
.........
........
}

At a quick glance, it looks like you aren't setting the content view, which would cause findViewById to return null. Attempting to set the text in the non-existing TextView is what seems to be the direct cause of the crash.

Unable to start activity error with Scene2D

We are trying to draw something with the scene2D from libGDX. We have our main activity then use the extends Androidapplication to initialize our testgame class. Here we define our screen and then make our stage and actors in the screen class.
Problem is that we are getting the same error over and over:
>
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.gamepadTest.app/com.gamepadTest.app.MainActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.gamepadTest.app/com.gamepadTest.app.TestGame}; have you declared this activity in your AndroidManifest.xml?
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2137)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
at android.app.ActivityThread.access$600(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.gamepadTest.app.MainActivity" on path: DexPathList[[zip file "/data/app/com.gamepadTest.app-1.apk"],nativeLibraryDirectories=[/data/app- lib/com.gamepadTest.app-1, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2128)
            
> at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
            at android.app.ActivityThread.access$600(ActivityThread.java:141)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:5103)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:525)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
            at dalvik.system.NativeStart.main(Native Method)
Have a look:
import android.os.Bundle;
import com.badlogic.gdx.backends.android.AndroidApplication;
import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
public class MainActivity extends AndroidApplication {
private TestGame testGame = new TestGame();
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
AndroidApplicationConfiguration cfg = new AndroidApplicationConfiguration();
initialize(testGame, cfg);
}
}
import com.badlogic.gdx.Game;
public class TestGame extends Game
{
TestScreen testScreen;
#Override
public void create() {
testScreen = new TestScreen();
setScreen(testScreen);
}
#Override
public void dispose() {
testScreen.dispose();
}
}
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.scenes.scene2d.Stage;
public class TestScreen implements Screen {
private Stage stage;
private TestActor testActor;
public TestScreen() {
stage = new Stage();
Gdx.input.setInputProcessor(stage);
testActor = new TestActor();
stage.addActor(testActor);
}
public void resize(int width, int height) {
stage.setViewport(800, 600, false);
stage.getCamera().translate(-stage.getGutterWidth(), -stage.getGutterHeight(), 0);
}
#Override
public void render(float delta) {
Gdx.gl.glClearColor(0, 0, 0, 1);
Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
stage.act(delta);
stage.draw();
}
#Override public void dispose() {
stage.dispose();
}
#Override public void show() {}
#Override public void hide() {}
#Override public void pause() {}
#Override public void resume() {}
}
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.scenes.scene2d.Actor;
public class TestActor extends Actor{
private ShapeRenderer renderer;
#Override
public void act(float delta) {
super.act(delta);
renderer = new ShapeRenderer();
}
#Override
public void draw (SpriteBatch batch, float parentAlpha) {
batch.end();
renderer.setProjectionMatrix(batch.getProjectionMatrix());
renderer.setTransformMatrix(batch.getTransformMatrix());
renderer.translate(getX(), getY(), 0);
renderer.begin(ShapeRenderer.ShapeType.Point);
renderer.rect(0, 0, 100, 100);
renderer.end();
batch.begin();
}
}
UPDATE:
Here is my manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.gamepadTest.app"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.gamepadTest.app.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>

You have to declare your activity TestGame inside your AndroidManifest.xml as <activity>
For more info about the manifest: http://developer.android.com/guide/topics/manifest/manifest-intro.html
Should look something like this, and needs to be inside the <application>-tag:
<activity
android:name="com.example.TestGame"
android:label="#string/app_name" >
</activity>

TestGame isn't an Activity:
public class TestGame extends Game{
The Activity you must declare is MainActivity. So its wierd, probably you made another Activity with that same name. But anyway, try setting it with dot notation instead of the whole package:
<activity
android:name=".TestGame"
android:label="#string/app_name" >
</activity>
See this:
Unable to find explicit activity class