Respect onSearchRequested in Dialog and actually launch search. Also dismiss self.

import android.content.Context;

import android.content.DialogInterface;

import android.content.ComponentName;

import android.graphics.drawable.Drawable;

import android.net.Uri;

import android.os.Bundle;

     * This hook is called when the user signals the desire to start a search.

     */

    public boolean onSearchRequested() {

        // not during dialogs, no.

        return false;

        final SearchManager searchManager = (SearchManager) mContext

                .getSystemService(Context.SEARCH_SERVICE);

        // associate search with owner activity if possible (otherwise it will default to

        // global search).

        final ComponentName appName = mOwnerActivity == null ? null

                : mOwnerActivity.getComponentName();

        final boolean globalSearch = (appName == null);

        searchManager.startSearch(null, false, appName, null, globalSearch);

        dismiss();

        return true;

    }