android - 如何捕获 SearchView 清除按钮单击？

Question

如何通过单击右侧的 X 按钮捕获用户单击清除 SearchView 文本的事件

我已经捕获了 onQueryTextChange 事件，但是，这是针对任何文本更改而不是针对那个 X 按钮的

Answer 1

在尝试了很多组合之后，我找到了如何在SearchView中捕捉X按钮后面的事件

以下是我的一个应用中 onCreateOptionsMenu 函数的代码 fragment 。 mSearchMenu 和 mSearchView 是全局变量。 X 实际上是一个 ID 为 search_close_btn 的 ImageView，文本区域是一个 ID 为 search_src_text

的 EditText View

@SuppressLint("NewApi")
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu items for use in the action bar
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.country_list_activity_actions, menu);
        mSearchMenu = menu.findItem(R.id.action_search);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            // Get the SearchView and set the searchable configuration
            SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
            mSearchView = (SearchView) menu.findItem(R.id.action_search).getActionView();

            // Assumes current activity is the searchable activity
            mSearchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
            mSearchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default

            // Get the search close button image view
            ImageView closeButton = (ImageView)mSearchView.findViewById(R.id.search_close_btn);

            // Set on click listener
            closeButton.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    LoggerUtils.d(LOG, "Search close button clicked");
                    //Find EditText view
                    EditText et = (EditText) findViewById(R.id.search_src_text);

                    //Clear the text from EditText view
                    et.setText("");

                    //Clear query
                    mSearchView.setQuery("", false);
                    //Collapse the action view
                    mSearchView.onActionViewCollapsed();
                    //Collapse the search widget
                    mSearchMenu.collapseActionView();
                }
            });
        }

        // When using the support library, the setOnActionExpandListener() method is
        // static and accepts the MenuItem object as an argument
        mSearchMenu.setOnActionExpandListener(new OnActionExpandListener() {

            @Override
            public boolean onMenuItemActionExpand(MenuItem item) {
                //Nothing to do here
                LoggerUtils.d(LOG, "Search widget expand ");
                return true; // Return true to expand action view
            }

            @Override
            public boolean onMenuItemActionCollapse(MenuItem item) {
                LoggerUtils.d(LOG, "Search widget colapsed ");
                return true; // Return true to collapse action view
            }
        });

        return super.onCreateOptionsMenu(menu);
    }