下面是我的一个应用程序中 onCreateOptionsMenu函数的代码片段。 mSearchMenu和 mSearchView是全局变量。
X 实际上是一个 ID 为 search_close_btn的 ImageView,而文本区域是一个 ID 为 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);
}
// 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
}