android - 单击搜索图标时如何在工具栏中使用 SearchView

Question

我正在处理以下屏幕:

1 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(如果我没记错的话)。简而言之，我想实现以下屏幕:

请告诉我如何实现这个。不同的 fragment 搜索会有所不同。

Answer 1

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;
        }