工具栏SearchView

Question

我已经实施了搜索小部件以及建议。以下是我的明确条目：

<activity android:name=".HomeActivity"
            android:theme="@style/AppTheme.NoActionBar" android:screenOrientation="portrait">
            <meta-data android:name="android.app.default_searchable"
                android:value=".SearchActivity" />
        </activity>

        <activity android:name=".SearchActivity" android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>

            <meta-data android:name="android.app.searchable"
                android:resource="@xml/searchable"/>
        </activity>

HomeActivity中的oncreateOptions菜单方法：

@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.options_menu, menu);
        searchItem= menu.findItem(R.id.search);

        // Associate searchable configuration with the SearchView
        SearchManager searchManager =
                (SearchManager) getSystemService(getApplicationContext().SEARCH_SERVICE);
        searchView =
                (SearchView) menu.findItem(R.id.search).getActionView();

        searchView.setSearchableInfo(
                searchManager.getSearchableInfo(getComponentName()));

        searchAdapter = new SuggestionAdapter(this, R.layout.suggestion_layout, null, columns,null, -1000);
        searchView.setSuggestionsAdapter(searchAdapter);

        SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextChange(final String newText) {
                if(newText.length()>3){
                    handler.removeCallbacksAndMessages(null);
                    handler.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            EventBus.getDefault().post(new TriggerTrickSuggestion(newText));
                        }
                    },500);

                }
                return true;
            }

            @Override
            public boolean onQueryTextSubmit(String query) {
                if(!query.trim().equals(""))
                {
                    Intent intent = new Intent(getApplicationContext(), SearchActivity.class);
                    intent.setAction(Intent.ACTION_SEARCH);
                    intent.putExtra("query", query);
                    startActivity(intent);
                }
                return true;
            }




        };



        SearchView.OnSuggestionListener suggestionListener= new SearchView.OnSuggestionListener() {

            @Override
            public boolean onSuggestionSelect(int position) {
                return false;
            }

            @Override
            public boolean onSuggestionClick(int position) {
                Cursor cursor= searchView.getSuggestionsAdapter().getCursor();
                cursor.moveToPosition(position);
                int id= cursor.getInt(0);
                showTrickDetails(id);
                return false;
            }
        };


        searchView.setOnQueryTextListener(queryTextListener);
        searchView.setOnSuggestionListener(suggestionListener);

        return true;
    }

搜索工作正常。列表视图中的建议也很好。但是它与其他应用程序的搜索视图看起来并不相同。在检查其他应用程序时，我注意到在点击搜索视图时它会展开，另一个屏幕覆盖主要活动。例如：Youtube搜索小部件。

我不知道如何才能实现这样的外观。找不到任何代码。