Use common functions in Android
<p>I have a set of 3 functions which i uses in 3 activity classes. Instead of putting the 3 methods in each of the 3 classes, how can i write the 3 methods only once and then call these methods in all other classes...</p>

<pre><code>@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
         // Handle item selection
        switch (item.getItemId()) {
        case R.id.icon:
            settingBoard();
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    public void settingBoard() {
        Log.i(MY_DEBUG_TAG, "Preparing settings page..");
        /*
         * progressDialog.setMessage("Preparing settings page.....");
         * progressDialog.show();
         */
        Intent lma = new Intent(this, SettingsActivity.class);
        startActivityForResult(lma, 3);
    }
</code></pre>

<p>Any help is appreciated</p>
