如何捕获SearchView的清除按钮？

Question

如何SearchView通过单击右侧的X按钮捕获用户单击明文的事件

我已经捕获了onQueryTextChange事件但是,这适用于任何文本更改而不是该X按钮

Answer 1

在尝试了很多组合之后,我发现了如何捕获SearchView中X按钮后面的事件

以下是onCreateOptionsMenu我的某个应用中的功能代码段.mSearchMenu并且mSearchView是全局变量.X实际上是带ID的ImageView,search_close_btn文本区域是带ID的EditText视图search_src_text

@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);
    }

Answer 2

你可以使用onCloseListener()

sv= (SearchView) findViewById(R.id.searchView1);

sv.setOnCloseListener(new OnCloseListener() {
            @Override
            public boolean onClose() {
                Toast t = Toast.makeText(MainActivity.this, "close", Toast.LENGTH_SHORT);
                t.show();

                return false;
            }
        });

Answer 3

我在尝试通过其ID找到组件时遇到了问题,但我发现了使用相同SearchView的上下文搜索此组件的另一种方法

// Catch event on [x] button inside search view
int searchCloseButtonId = searchView.getContext().getResources()
                .getIdentifier("android:id/search_close_btn", null, null);
ImageView closeButton = (ImageView) this.searchView.findViewById(searchCloseButtonId);
// Set on click listener
closeButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
       // Manage this event.
    }
});

Answer 4

我使用此代码来捕获文本查询清除,并执行我的操作

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

        SearchView searchView = (SearchView) menu.findItem(R.id.search_button).getActionView();
        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));

        SearchView.OnQueryTextListener textChangeListener = new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextChange(String cs) {
                if (TextUtils.isEmpty(cs)){
                    //Text is cleared, do your thing
                }
                return false;
            }

            @Override
            public boolean onQueryTextSubmit(String query) {
                //text query submitted
            }
        };
        searchView.setOnQueryTextListener(textChangeListener);

        return true;
    }

Answer 5

如果您使用Appcompat库,而不是使用

getResources().getIdentifier("android:id/search_close_btn", null, null);

你可以这样做:

MenuItem searchItem = menu.findItem(R.id.action_search);
SearchView searchView = (SearchView) searchItem.getActionView();
View closeButton = searchView.findViewById(android.support.v7.appcompat.R.id.search_close_btn);
                closeButton.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        //handle click
                    }
                });

Answer 6

如果您使用的是 androidx 的 SearchView，您可以这样做：

val closeButton: View? = searchView.findViewById(androidx.appcompat.R.id.search_close_btn)
closeButton?.setOnClickListener { 
    //TODO: Set your action
}

Answer 7

爱德华多的解决方案对我不起作用。我发现了其他适用于 Kotlin 的东西。感谢SjoerdvGestel和它的答案，我找到了这个解决方案。

// Get the close button on the searchView
val closeButtonId: Int = searching.context.resources.getIdentifier("android:id/search_close_btn", null, null)
val closeButton = searching.findViewById(closeButtonId) as ImageView

// On close collapse the searchView
closeButton.setOnClickListener {
    searching.onActionViewCollapsed()
    true
}

Answer 8

    ImageView closeButton = (ImageView) this.searchView.findViewById(android.support.v7.appcompat.R.id.search_close_btn);

    closeButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // Manage this event.


        }
    });

使用R.id.search_go_btn的“提交”按钮

Answer 9

科特林回答：

mySearchView.setOnCloseListener(object : SearchView.OnCloseListener {
            override fun onClose(): Boolean {
                // Do your stuff
                return false
            }
        })