如何在单击搜索图标时使用工具栏中的 SearchView

Question

我正在处理以下屏幕：

1 个屏幕截图

在工具栏上，我有一个搜索图标。要添加此搜索图标，我使用了以下代码：

menu_friend_list_activity.xml

     <?xml version="1.0" encoding="utf-8"?>
    <menu xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto">
        <item
            android:id="@+id/action_search"
            android:icon="@drawable/search"
            android:orderInCategory="100"
            android:title="@string/action_search"
            app:actionViewClass="android.support.v7.widget.SearchView"
            app:showAsAction="always" />
    </menu>

Activity 中的代码

 @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater menuInflater = getMenuInflater();
        menuInflater.inflate(R.menu.menu_friend_list_activity, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
                case R.id.action_search:
                Toast.makeText(getApplicationContext(), "Search button clicked", Toast.LENGTH_SHORT).show();
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }

    }

单击搜索图标时，我想在工具栏中显示 SearchView（如果我在这里没有错的话）。简而言之，我想实现以下屏幕：

请告诉我如何实现这一点。对于不同的片段，搜索会有所不同。

Answer 1

我有类似的问题。我解决了以下问题：

MenuItem searchItem = menu.findItem(R.id.ot_action_search);
final SearchView searchView = (SearchView) searchItem.getActionView();

searchItem.expandActionView();
searchView.setIconified(false);
searchView.setQuery(searchQuery, false);

注意：expandActionView() 应该在 searchItem 菜单项上调用，而不是在 searchView 上。那是我的错。

Answer 2

试试这个

 @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            getMenuInflater().inflate(R.menu.search_actions, menu);

            MenuItem searchViewItem = menu.findItem(R.id.action_search);
            // Get the SearchView and set the searchable configuration
            SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
            SearchView searchView = (SearchView) searchViewItem.getActionView();
            searchView.setQueryHint("Search for Product,Brands...");
            searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
            searchView.setIconifiedByDefault(false);// Do not iconify the widget; expand it by defaul

            SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQueryTextListener() {
                public boolean onQueryTextChange(String newText) {
                    // This is your adapter that will be filtered
                    Toast.makeText(getApplicationContext(),"textChanged :"+newText,Toast.LENGTH_LONG).show();

                    return true;
                }

                public boolean onQueryTextSubmit(String query) {
                    // **Here you can get the value "query" which is entered in the search box.**

                    Toast.makeText(getApplicationContext(),"searchvalue :"+query,Toast.LENGTH_LONG).show();

                    return true;
                }
            };
            searchView.setOnQueryTextListener(queryTextListener); 

            return true;
        }

Answer 3

你没有正确充气菜单，这是你应该如何充气以获得你想要的屏幕

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    inflater.inflate(R.menu.yourmenyxml, menu);

    item = menu.findItem(R.id.action_search);
    SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);