This code is not working properly. Whenever i search for an item starts with a capital letter it shows nothing in the list. It only shows letters starting with small alphabets.
#Override
public boolean onQueryTextChange(String s) {
String userinput= s.toLowerCase();
List<MultipleFoodWraper> newlist = new ArrayList<>();
for(MultipleFoodWraper name :multipleFoodWraperArrayList) {
if (name.getName().toString().contains(userinput)) {
newlist.add(name);
}
adapter.updatelist(newlist);
}
return true;
}
Converting name to lowercase does the trick
name.getName().toString().toLowerCase().contains(userinput)
I have a strange issue with onQueryTextChanged method with SearchView in android. My problem is that when specific text e.g: "Al a" has been entered (i.e. right after entering in letter 'a' in the search Field) the searchView closes by itself. But if I enter in "Al A" i.e. capitalizing 'a' there is no issue. Similarly the same issue persists with "Al b", "Al c",.....etc etc. At first I thought it had something to do with escape sequences but that's not true. I am clueless, please help.
private void search(SearchView searchView) {
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
System.out.println("text entered="+newText);
if (condition!= null) {
if (newText.length()!=0) { //if newText is not empty
} else {
isFiltersActive = false;
}
ListAdapter.getFilter().filter(newText);
} else
isFiltersActive = false;
return true;
}
});
searchView.setOnCloseListener(new SearchView.OnCloseListener() {
#Override
public boolean onClose() {
}
});
}
onQueryTextSubmit:
Called when the user submits the query. This could be due to a key
press on the keyboard or due to pressing a submit button. The listener
can override the standard behavior by returning true to indicate that
it has handled the submit request. Otherwise return false to let the
SearchView handle the submission by launching any associated intent.
Return true from onQueryTextSubmit function.
To Check whether String is empty or not, Use
TextUtils.isEmpty() Returns true if the string is null or 0-length.
Everybody,
I want to implement search on my app. I've been doing research here and there and some of it I can't really grasp. Android Search Listview using Filter is one of the very helpful example.
I want to implement a search functionality that give out a hint when I start searching. Also, when I clicked on the hint, it will move to the intended page.
For example, the hint is 'apple'. When I clicked on the hint it will directed me to the page of apple.
Is that possible?
Any site or tutorial that you can recommend for me?
Thanks!
I suggest you to use Material SearchView it worked for me.
MaterialSearchView searchView = (MaterialSearchView) findViewById(R.id.search_view);
searchView.setOnQueryTextListener(new MaterialSearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
//Do some magic
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
//Do some magic
return false;
}
});
searchView.setOnSearchViewListener(new MaterialSearchView.SearchViewListener() {
#Override
public void onSearchViewShown() {
//Do some magic
}
#Override
public void onSearchViewClosed() {
//Do some magic
}
});
https://github.com/Shahroz16/material-searchview
I am using search view in my app to search through a list of item and run a query on a URL.
I am using the following code :
public boolean onQueryTextSubmit(String s) {
mSearchView.setQuery("", false);
mSearchView.clearFocus();
mSearchView.setIconified(true);
url+="intitle="+s+"&site=stackoverflow";
// mSearchView.setQuery("", false);
// mSearchView.clearFocus();
// mSearchView.setIconified(true);
new JSONTask().execute();
return false;
}
So I modify the URL based on the search query and run the async task to load the list of results.
This works fine the first time I search, but all subsequent searches give the same result even when the query is changed.
How do I fix this ?
Thanks !
If the variable url is global, you should set it's value to the initial value at the end of your onQueryTextSubmit(String s) method, because then on every next step it will concat the strings ( += ) and will be something like this url = %your original value%intitle="s"&site=stackoverflowintitle="s"&site=stackoverflowintitle="s"&site=stackoverflow
I have created a searchable activity. Now, i want to add search suggestions that are taken from web service. I want to get those suggestions asynchronously. According to Adding Custom Suggestions I need to override the query method, do my suggestion search, build my own MatrixCursor and return it. but this is the problem, my request for getting the suggestion is an asynchronically one. so when result is back from net it out side of query method's scope.
Here is an example of SearchView with suggestions coming from a network service (I used Retrofit):
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_search_activity, menu);
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.search));
final CursorAdapter suggestionAdapter = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_1,
null,
new String[]{SearchManager.SUGGEST_COLUMN_TEXT_1},
new int[]{android.R.id.text1},
0);
final List<String> suggestions = new ArrayList<>();
searchView.setSuggestionsAdapter(suggestionAdapter);
searchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() {
#Override
public boolean onSuggestionSelect(int position) {
return false;
}
#Override
public boolean onSuggestionClick(int position) {
searchView.setQuery(suggestions.get(position), false);
searchView.clearFocus();
doSearch(suggestions.get(position));
return true;
}
});
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
MyApp.autocompleteService.search(newText, new Callback<Autocomplete>() {
#Override
public void success(Autocomplete autocomplete, Response response) {
suggestions.clear();
suggestions.addAll(autocomplete.suggestions);
String[] columns = {
BaseColumns._ID,
SearchManager.SUGGEST_COLUMN_TEXT_1,
SearchManager.SUGGEST_COLUMN_INTENT_DATA
};
MatrixCursor cursor = new MatrixCursor(columns);
for (int i = 0; i < autocomplete.suggestions.size(); i++) {
String[] tmp = {Integer.toString(i), autocomplete.suggestions.get(i), autocomplete.suggestions.get(i)};
cursor.addRow(tmp);
}
suggestionAdapter.swapCursor(cursor);
}
#Override
public void failure(RetrofitError error) {
Toast.makeText(SearchFoodActivity.this, error.getMessage(), Toast.LENGTH_SHORT).show();
Log.w("autocompleteService", error.getMessage());
}
});
return false;
}
});
return true;
}
It seems that the request to the suggestion content provider is not run on the UI thread, anyway, according to this answer: https://stackoverflow.com/a/12895381/621690 .
If you can change your http request you could simply call it blocking inside the query method. Might help to listen for interruptions or other signals (custom ones maybe) to stop unnecessary requests.
Another option - if you do not want to change any request classes that are already asynchronous (like if you are using Robospice) - should be to just return the MatrixCursor reference and populate it later on. The AbstractCursor class already implements the Observer pattern and sends out notifications in case of changes. If the search system is listening it should handle any changes in the data. I have yet to implement that myself so I cannot confirm that it will work out as nicely as I picture it. (Have a look at CursorLoader's source for more inspiration.)
And, anyway, isn't that the whole point of a cursor? Otherwise we could simply return a list with data.
UPDATE:
For me, using a MatrixCursor didn't work out. Instead, I have implemented two other solutions:
Using the AutoCompleteTextField in combination with a custom subclass of ArrayAdapter which itself uses a custom subclass of Filter. The method Filter#performFiltering() (which I override with the synchronous call to the remote service) is called asynchronously and the UI thread is not blocked.
Using the SearchWidget with a SearchableActivity and a custom ArrayAdapter (without custom Filter). When the search intent comes in, the remote request is started (Robospice) and when it comes back via callback, I call the following custom method on my ArrayAdapter<Tag> subclass:
public void addTags(List<Tag> items) {
if (items != null && items.size() > 0) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
super.setNotifyOnChange(false);
for (Tag tag : items) {
super.add(tag);
}
super.notifyDataSetChanged();
} else {
super.addAll(items);
}
}
}
This method takes care of triggering the notifications on the adapter and thus the search result list.
The closest thing I have found to solve this, is by using a ContentProvider and do the network request on the Query method of your provider (even when this goes against the best practices), with the result you can create a MatrixCursor as it's show here and here.
I'm still searching for other options like using a SyncAdapter, which seems overwhelming for the purpose of just showing suggestions that aren't used anywhere else.
Another option, that I took to do this asynchronously is to use an AutoCompleteTextView, that way you can create a custom adapter, where you can implement the getFilter function as it is shown in this answer.