BaseActivity.java

package oraculum.droid.ui;

import oraculum.droid.util.ActivityHelper;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;

public class BaseActivity extends FragmentActivity {
	   final ActivityHelper mActivityHelper = ActivityHelper.createInstance(this);

	    @Override
	    protected void onPostCreate(Bundle savedInstanceState) {
	        super.onPostCreate(savedInstanceState);
	        mActivityHelper.onPostCreate(savedInstanceState);
	    }

	    @Override
	    public boolean onKeyLongPress(int keyCode, KeyEvent event) {
	        return mActivityHelper.onKeyLongPress(keyCode, event) ||
	                super.onKeyLongPress(keyCode, event);
	    }

	    @Override
	    public boolean onKeyDown(int keyCode, KeyEvent event) {
	        return mActivityHelper.onKeyDown(keyCode, event) ||
	                super.onKeyDown(keyCode, event);
	    }

	    @Override
	    public boolean onCreateOptionsMenu(Menu menu) {
	        return mActivityHelper.onCreateOptionsMenu(menu) || super.onCreateOptionsMenu(menu);
	    }

	    @Override
	    public boolean onOptionsItemSelected(MenuItem item) {
	        return mActivityHelper.onOptionsItemSelected(item) || super.onOptionsItemSelected(item);
	    }

	    /**
	     * Returns the {@link ActivityHelper} object associated with this activity.
	     */
	    protected ActivityHelper getActivityHelper() {
	        return mActivityHelper;
	    }

	    /**
	     * Takes a given intent and either starts a new activity to handle it (the default behavior),
	     * or creates/updates a fragment (in the case of a multi-pane activity) that can handle the
	     * intent.
	     *
	     * Must be called from the main (UI) thread.
	     */
	    public void openActivityOrFragment(Intent intent) {
	        // Default implementation simply calls startActivity
	        startActivity(intent);
	    }

	    /**
	     * Converts an intent into a {@link Bundle} suitable for use as fragment arguments.
	     */
	    public static Bundle intentToFragmentArguments(Intent intent) {
	        Bundle arguments = new Bundle();
	        if (intent == null) {
	            return arguments;
	        }

	        final Uri data = intent.getData();
	        if (data != null) {
	            arguments.putParcelable("_uri", data);
	        }

	        final Bundle extras = intent.getExtras();
	        if (extras != null) {
	            arguments.putAll(intent.getExtras());
	        }

	        return arguments;
	    }

	    /**
	     * Converts a fragment arguments bundle into an intent.
	     */
	    public static Intent fragmentArgumentsToIntent(Bundle arguments) {
	        Intent intent = new Intent();
	        if (arguments == null) {
	            return intent;
	        }

	        final Uri data = arguments.getParcelable("_uri");
	        if (data != null) {
	            intent.setData(data);
	        }

	        intent.putExtras(arguments);
	        intent.removeExtra("_uri");
	        return intent;
	    }

		protected void onBeforeCommitReplaceFragment(FragmentManager fm,
				FragmentTransaction ft, Fragment fragment) {
			// TODO Auto-generated method stub
			
		}
}