我如何捕获用户单击清除SearchView
文本的事件,通过单击右侧的X按钮?
我已经捕获了onQueryTextChange
事件,但是这适用于任何文本更改,而不仅仅是针对那个X按钮。
我如何捕获用户单击清除SearchView
文本的事件,通过单击右侧的X按钮?
我已经捕获了onQueryTextChange
事件,但是这适用于任何文本更改,而不仅仅是针对那个X按钮。
onCreateOptionsMenu
函数的代码片段。 mSearchMenu
和 mSearchView
是全局变量。
该“X”实际上是一个具有ID search_close_btn
的ImageView,而文本区域则是具有ID search_src_text
的EditText视图。@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);
}
您可以直接使用 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;
}
});
我在尝试按照ID查找组件时出现了问题,但我找到了另一种通过相同SearchView的上下文来搜索该组件的方法
// 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.
}
});
searchView.setIconified(true);
或 searchView.setIconified(false);
即可。 - Gidi Sprintzin我使用这段代码来捕获文本查询的清除,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;
}
getResources().getIdentifier("android:id/search_close_btn", null, null);
你可以做到这一点:
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
}
});
2019年8月修订:
如果您使用androidx,请使用:androidx.appcompat.R.id.search_close_btn
如果您正在使用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
}
searchView.setQuery("", false)
。 - djserva来自 Eduardo 的解决方案对我不起作用。我找到了另一种适用于Kotlin的方法。我感谢SjoerdvGestel,他的回答帮助了我。
// 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
}
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.
}
});
mySearchView.setOnCloseListener(object : SearchView.OnCloseListener {
override fun onClose(): Boolean {
// Do your stuff
return false
}
})
我通过检查androidx.appcompat.widget.SearchView
类并查找关闭按钮的id,发现ImageView mCloseButton = findViewById(R.id.search_close_btn);
。因此解决方案是在您的searchView实现中获取此id的引用并将onClick监听器附加到它上面。内部发生的事情是我们覆盖了imageView的setOnClickListener并添加了我们的实现。以下是代码。
SearchView searchView = findViewById(R.id.search_view);
ImageView closeButton = searchView.findViewById(R.id.search_close_btn);
if (closeButton != null) closeButton.setOnClickListener(v -> {
//your logic goes in here
});