When i click the login button it logs me in facebook (asking for permission the first time) and everything is fine. But when i click logout after that i receive the “unfortunately myapp has stopped” error and the app closes. I looked up for solution to that problem but couldnt find any that works for me. Here is my code:
import java.io.IOException;
import java.net.MalformedURLException;
import com.facebook.android.DialogError;
import com.facebook.android.Facebook;
import com.facebook.android.Facebook.DialogListener;
import com.facebook.android.FacebookError;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.ActivityInfo;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
public class MainMenu extends Activity {
ImageView btnLogin;
Facebook fb;
private SharedPreferences shared_pref;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_menu);
btnLogin = (ImageView) findViewById(R.id.buttonFb);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
String APP_ID = getString(R.string.APP_ID);
fb = new Facebook(APP_ID);
//tryToGetDataFromPreviousLogin();
createButtons();
}
private void tryToGetDataFromPreviousLogin() {
shared_pref = getPreferences(MODE_PRIVATE);
String access_token = shared_pref.getString("access_token", null);
long expires = shared_pref.getLong("access_expires", 0);
if(access_token != null) {
fb.setAccessToken(access_token);
}
if(expires != 0) {
fb.setAccessExpires(expires);
}
}
private void createButtons() {
createBtnExit();
createBtnStart();
createBtnFbLogin();
createBtnSettings();
}
private void createBtnExit() {
Button btnExit = (Button) findViewById(R.id.buttonExit);
btnExit.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
popQuitDialog();
}
});
}
private void createBtnStart() {
Button btnStart = (Button) findViewById(R.id.buttonStart);
btnStart.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainMenu.this, MainActivity.class);
MainMenu.this.startActivity(intent);
}
});
}
private void createBtnFbLogin() {
btnLogin.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if(fb.isSessionValid()) {
try {
fb.logout(MainMenu.this);
updateFbButtonImage();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
else {
fb.authorize(MainMenu.this, new DialogListener() {
@Override
public void onFacebookError(FacebookError e) {
Toast.makeText(MainMenu.this, "onFacebookError", Toast.LENGTH_SHORT).show();
}
@Override
public void onError(DialogError e) {
Toast.makeText(MainMenu.this, "onError", Toast.LENGTH_SHORT).show();
}
@Override
public void onComplete(Bundle values) {
/*
Editor editor = shared_pref.edit();
editor.putString("access_token", fb.getAccessToken());
editor.putLong("access_expires", fb.getAccessExpires());
editor.commit(); */
updateFbButtonImage();
}
@Override
public void onCancel() {
Toast.makeText(MainMenu.this, "onCancel", Toast.LENGTH_SHORT).show();
}
});
}
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
fb.authorizeCallback(requestCode, resultCode, data);
}
private void updateFbButtonImage() {
if(fb.isSessionValid()) {
btnLogin.setImageResource(R.drawable.logout_button);
}
else {
btnLogin.setImageResource(R.drawable.login_button);
}
}
private void createBtnSettings() {
Button btnSettings = (Button) findViewById(R.id.buttonStatistics);
btnSettings.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainMenu.this, Statistics.class);
MainMenu.this.startActivity(intent);
}
});
}
public void popQuitDialog() {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(MainMenu.this);
alertDialog.setTitle("Do you really want to quit?");
alertDialog.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
alertDialog.setNegativeButton("No", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
alertDialog.show();
}
}
this is the stacktrace (running it on my android 4.0.4):
01-25 19:09:06.028: D/dalvikvm(23201): GC_FOR_ALLOC freed 50K, 7% free 12768K/13663K, paused 23ms
01-25 19:09:06.088: I/dalvikvm-heap(23201): Grow heap (frag case) to 21.362MB for 9216016-byte allocation
01-25 19:09:06.118: D/dalvikvm(23201): GC_FOR_ALLOC freed <1K, 5% free 21767K/22691K, paused 15ms
01-25 19:09:06.168: D/dalvikvm(23201): GC_CONCURRENT freed 1K, 5% free 21766K/22691K, paused 2ms+2ms
01-25 19:09:06.248: D/dalvikvm(23201): GC_FOR_ALLOC freed <1K, 5% free 21766K/22691K, paused 12ms
01-25 19:09:06.368: I/dalvikvm-heap(23201): Grow heap (frag case) to 36.985MB for 16384016-byte allocation
01-25 19:09:06.398: D/dalvikvm(23201): GC_FOR_ALLOC freed 0K, 3% free 37766K/38755K, paused 19ms
01-25 19:09:06.448: D/dalvikvm(23201): GC_CONCURRENT freed 0K, 3% free 37767K/38755K, paused 2ms+3ms
01-25 19:09:06.558: D/TextLayoutCache(23201): Using debug level: 0 - Debug Enabled: 0
01-25 19:09:06.568: D/libEGL(23201): loaded /system/lib/egl/libGLES_android.so
01-25 19:09:06.568: D/libEGL(23201): loaded /system/lib/egl/libEGL_adreno200.so
01-25 19:09:06.578: D/libEGL(23201): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
01-25 19:09:06.588: D/libEGL(23201): loaded /system/lib/egl/libGLESv2_adreno200.so
01-25 19:09:06.598: I/Adreno200-EGLSUB(23201): <ConfigWindowMatch:2078>: Format RGBA_8888.
01-25 19:09:06.618: D/memalloc(23201): /dev/pmem: Mapped buffer base:0x5c6c6000 size:21016576 offset:17248256 fd:64
01-25 19:09:06.618: E/(23201): Can't open file for reading
01-25 19:09:06.618: E/(23201): Can't open file for reading
01-25 19:09:06.628: D/OpenGLRenderer(23201): Enabling debug mode 0
01-25 19:09:06.818: D/memalloc(23201): /dev/pmem: Mapped buffer base:0x5ee47000 size:11022336 offset:7254016 fd:67
01-25 19:09:09.048: D/memalloc(23201): /dev/pmem: Mapped buffer base:0x5f9d2000 size:7254016 offset:3485696 fd:70
01-25 19:09:09.208: D/OpenGLRenderer(23201): Flushing caches (mode 1)
01-25 19:09:10.038: D/OpenGLRenderer(23201): Flushing caches (mode 0)
01-25 19:09:10.038: D/memalloc(23201): /dev/pmem: Unmapping buffer base:0x5c6c6000 size:21016576 offset:17248256
01-25 19:09:10.038: D/memalloc(23201): /dev/pmem: Unmapping buffer base:0x5ee47000 size:11022336 offset:7254016
01-25 19:09:10.038: D/memalloc(23201): /dev/pmem: Unmapping buffer base:0x5f9d2000 size:7254016 offset:3485696
01-25 19:09:16.588: I/Adreno200-EGLSUB(23201): <ConfigWindowMatch:2078>: Format RGBA_8888.
01-25 19:09:16.598: D/memalloc(23201): /dev/pmem: Mapped buffer base:0x5c6c6000 size:7254016 offset:3485696 fd:64
01-25 19:09:16.738: D/memalloc(23201): /dev/pmem: Mapped buffer base:0x5ceb1000 size:11563008 offset:7794688 fd:67
01-25 19:09:18.498: D/memalloc(23201): /dev/pmem: Mapped buffer base:0x600ce000 size:21016576 offset:17248256 fd:70
01-25 19:09:18.578: D/Facebook-Util(23201): GET URL: https://api.facebook.com/restserver.php?access_token=BAAHxNZCKUYeABAOumBne8GijZA3qZAUimZBQVsGu19qjSfRXIWBSy5t5WpsT3SV4GmqSFFZAdOWpmu7SJrH51V245ZBHh1RMMQybkpP2OH7GRDGMNAgc0Fudaztq07ZCVRMbcHb14nfYAZDZD&method=auth.expireSession&format=json
01-25 19:09:18.578: D/AndroidRuntime(23201): Shutting down VM
01-25 19:09:18.578: W/dalvikvm(23201): threadid=1: thread exiting with uncaught exception (group=0x40a9f210)
01-25 19:09:18.608: E/AndroidRuntime(23201): FATAL EXCEPTION: main
01-25 19:09:18.608: E/AndroidRuntime(23201): android.os.NetworkOnMainThreadException
01-25 19:09:18.608: E/AndroidRuntime(23201): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1108)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.io.IoBridge.connectErrno(IoBridge.java:133)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.io.IoBridge.connect(IoBridge.java:118)
01-25 19:09:18.608: E/AndroidRuntime(23201): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
01-25 19:09:18.608: E/AndroidRuntime(23201): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
01-25 19:09:18.608: E/AndroidRuntime(23201): at java.net.Socket.connect(Socket.java:849)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:77)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:351)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:86)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpConnection.connect(HttpConnection.java:117)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:308)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:460)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:432)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:282)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:232)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:273)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:168)
01-25 19:09:18.608: E/AndroidRuntime(23201): at libcore.net.http.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:270)
01-25 19:09:18.608: E/AndroidRuntime(23201): at com.facebook.android.Util.openUrl(Util.java:219)
01-25 19:09:18.608: E/AndroidRuntime(23201): at com.facebook.android.Facebook.requestImpl(Facebook.java:806)
01-25 19:09:18.608: E/AndroidRuntime(23201): at com.facebook.android.Facebook.request(Facebook.java:709)
01-25 19:09:18.608: E/AndroidRuntime(23201): at com.facebook.android.Facebook.logoutImpl(Facebook.java:651)
01-25 19:09:18.608: E/AndroidRuntime(23201): at com.facebook.android.Facebook.logout(Facebook.java:644)
01-25 19:09:18.608: E/AndroidRuntime(23201): at taxi.route.MainMenu$3.onClick(MainMenu.java:93)
01-25 19:09:18.608: E/AndroidRuntime(23201): at android.view.View.performClick(View.java:3574)
01-25 19:09:18.608: E/AndroidRuntime(23201): at android.view.View$PerformClick.run(View.java:14293)
01-25 19:09:18.608: E/AndroidRuntime(23201): at android.os.Handler.handleCallback(Handler.java:605)
01-25 19:09:18.608: E/AndroidRuntime(23201): at android.os.Handler.dispatchMessage(Handler.java:92)
01-25 19:09:18.608: E/AndroidRuntime(23201): at android.os.Looper.loop(Looper.java:137)
01-25 19:09:18.608: E/AndroidRuntime(23201): at android.app.ActivityThread.main(ActivityThread.java:4441)
01-25 19:09:18.608: E/AndroidRuntime(23201): at java.lang.reflect.Method.invokeNative(Native Method)
01-25 19:09:18.608: E/AndroidRuntime(23201): at java.lang.reflect.Method.invoke(Method.java:511)
01-25 19:09:18.608: E/AndroidRuntime(23201): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
01-25 19:09:18.608: E/AndroidRuntime(23201): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
01-25 19:09:18.608: E/AndroidRuntime(23201): at dalvik.system.NativeStart.main(Native Method)
01-25 19:09:22.068: I/Process(23201): Sending signal. PID: 23201 SIG: 9
Also as you can see the commented code is a code that should try to log in automatically the user but it doesnt work as intended and i can’t find a solution for it aswell. I dont know if i have to make new question about it so advises are appreciated.
This is what i did added this in MainMenu.java
private class PostTask extends AsyncTask<String, Integer, String> {
@Override
protected String doInBackground(String... params) {
try {
fb.logout(MainMenu.this);
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
}
And replace commented with
//fb.logout(MainMenu.this);
new PostTask().doInBackground();
You are getting a
NetworkOnMainThreadExceptionas indicated by your stack trace. This happens on Android versions 3.0+ since they have a new StrictMode which does not allow network operations to be done on the main (native Thread). Consider using anAsyncTaskto do your network stuff.Here is an example of an AsyncTask which. It consists of two basic parts –
doInBackground()which does the network stuff on a separate Thread, then passes its result over toonPostExecute(). In this second method, you make the necessary changes to the UI. Like the example notes, if you want to do something before yourdoInBackground()method executes, you useonPreExecute().Also an interesting read: Keeping Your App Responsive. It also provides an AsyncTask example.