Android SearchView setOnQueryTextListener 不工作？

Question

我正在我的应用程序的操作栏中创建一个搜索选项。我显示了“搜索”图标，当我单击它时它会折叠，我可以输入查询。

当我的应用程序启动时，将调用 onCreateOptionsMenu。我打印一个测试语句来验证它，然后在该函数中设置一个 setOnQueryTextListener。但它不起作用。当我在搜索 View 中键入内容时，我尝试通过打印来测试它，但它不起作用。请帮我找出错误。还有一个用于展开和折叠的监听器，但它也不起作用。

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {

    inflater.inflate(R.menu.manageusersmenu, menu);
    MenuItem item = menu.findItem(R.id.action_search);
    SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);

    Log.i("onCreateOptionsMenu: ", "I made it in here");

    MenuItemCompat.setOnActionExpandListener(item,
            new MenuItemCompat.OnActionExpandListener() {
                @Override
                public boolean onMenuItemActionCollapse(MenuItem item) {
                     mAdapter.setFilter(mUsers);
                    Log.i("ActionCollapse: ", "Collapsed");
                    return true;
                }
                @Override
                public boolean onMenuItemActionExpand(MenuItem item) {
                    Log.i("ActionExpand: ", "Expanded");
                    return true;
                }
            });

    searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {
            return false;
        }

        @Override
        public boolean onQueryTextChange(String newText) {
            Log.i("on query: ", newText);
            List<User> filteredModelList = filter(mUsers, newText);
            for (int i = 0; i < filteredModelList.size(); i++) {
                Log.i("user, ", filteredModelList.get(i).getFName().toString());
            }
            mAdapter.setFilter(filteredModelList);
            return true;
        }

        private List<User> filter(List<User> users, String query) {
            query = query.toLowerCase();

            final List<User> filteredModelList = new ArrayList<>();
            for (User u : users) {
                final String text = u.getFName().toLowerCase();
                if (text.contains(query)) {
                    filteredModelList.add(u);
                }
            }
            return filteredModelList;
        }
    });

}

菜单文件

<menu
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    >

    <!-- "Mark Favorite", should appear as action button if possible -->
    <item
        android:id="@+id/add_new_user"
        android:icon="@drawable/ic_action_name"
        android:title="@string/add_new_user"
        app:showAsAction="ifRoom"/>

    <item
        android:id="@+id/action_search"
        android:icon="@android:drawable/ic_menu_search"
        android:title="action_search"
        app:actionViewClass="android.support.v7.widget.SearchView"
        app:showAsAction="always|collapseActionView" />

</menu>

Answer 1

我用过这个，但不知道为什么有效:

Android abs with SearchView, onQueryTextListener not working

 @Override
    public void onPrepareOptionsMenu(Menu menu) {
        super.onPrepareOptionsMenu(menu);
        MenuItem item = menu.findItem(R.id.action_search);
        SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);

        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {
                Log.i("well", " this worked");
                return false;
            }
        });
    }