I am using Facebook SDK in my app but my app crashes after i click on the login button.
But the time is not fixed.
Sometimes it crashes after i have logged in, sometimes at the instant i click on login button, sometimes in between when i am filling out the details for login.
Also can anybody tell me why the shared preferences are not working.
MainActivity.this
import com.facebook.android.FacebookError;
import com.facebook.android.Facebook.DialogListener;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
Facebook fb;
ImageView login;
SharedPreferences sp;
String APP_ID = "123456";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
fb = new Facebook(APP_ID);
sp = getPreferences(MODE_PRIVATE);
String access_token = sp.getString("access_token", null);
long expires = sp.getLong("expires", 0);
if (access_token != null) {
fb.setAccessToken(access_token);
}
if (expires != 0) {
fb.setAccessExpires(expires);
}
login = (ImageView) findViewById(R.id.imageView1);
login.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v.getId() == R.id.imageView1) {
fbLogin();
}
}
private void fbLogin() {
if (fb.isSessionValid()) {
Intent i = new Intent(MainActivity.this, com.example.test.Register.class);
startActivity(i);
} else {
fb.authorize(MainActivity.this, new String[] { "email" },
new DialogListener() {
@Override
public void onFacebookError(FacebookError e) {
// TODO Auto-generated method stub
e.printStackTrace();
Toast.makeText(MainActivity.this, "fbError",Toast.LENGTH_SHORT).show();
}
@Override
public void onError(DialogError e) {
// TODO Auto-generated method stub
e.printStackTrace();
Toast.makeText(MainActivity.this, "onError",Toast.LENGTH_SHORT).show();
}
@Override
public void onComplete(Bundle values) {
// TODO Auto-generated method stub
Editor editor = sp.edit();
editor.putString("access_token",fb.getAccessToken());
editor.putLong("access_expires",fb.getAccessExpires());
editor.commit();
Intent i = new Intent(MainActivity.this, com.example.test.Register.class);
startActivityForResult(i, RESULT_OK);
}
@Override
public void onCancel() {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, "onCancel",Toast.LENGTH_SHORT).show();
}
});
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
fb.authorizeCallback(requestCode, resultCode, data);
}
}
So please can anybody help me to identify :
- Why the app is crashing at any time after i click on the the login button.
- Why the shared preferences is not working.
Logcat
03-31 00:31:47.459: E/AndroidRuntime(5121): FATAL EXCEPTION: Timer-0
03-31 00:31:47.459: E/AndroidRuntime(5121): java.lang.NoClassDefFoundError: android.support.v4.content.LocalBroadcastManager
03-31 00:31:47.459: E/AndroidRuntime(5121): at com.facebook.AppEventsLogger.flushAndWait(AppEventsLogger.java:760)
03-31 00:31:47.459: E/AndroidRuntime(5121): at com.facebook.AppEventsLogger.access$1(AppEventsLogger.java:732)
03-31 00:31:47.459: E/AndroidRuntime(5121): at com.facebook.AppEventsLogger$2.run(AppEventsLogger.java:605)
03-31 00:31:47.459: E/AndroidRuntime(5121): at java.util.Timer$TimerImpl.run(Timer.java:284)
03-31 00:31:47.589: D/OpenGLRenderer(5121): Flushing caches (mode 0)
03-31 00:31:50.319: I/Process(5121): Sending signal. PID: 5121 SIG: 9