Android SearchManager: How to set minimum number of characters to enable the Search
-
12-06-2021 - |
题
I am using the Android SearchManager. I defined all the needed attributes in the searchable.xml.
Now, I would like to set a limit for minimum numer of characters before the user can make the search. By default, the min is 1.
How can this be changed?
Thank you.
解决方案
Its the following attribute in searchable.xml
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
...
android:searchSuggestThreshold="2"
>
</searchable>
其他提示
if onQueryTextSubmit return false then only search action is performing , we can limit chars like this
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.menu_home, menu);
// Get the SearchView and set the searchable configuration
SearchManager searchManager = (SearchManager)getActivity().getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView();
// Assumes current activity is the searchable activity
searchView.setSearchableInfo(searchManager.getSearchableInfo(getActivity().getComponentName()));
//searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return query.length()<4; //number of char to limit
}
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
});
}
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