I have manage to create a custom adapter and read data from web API but the suggestions are not displayed in the dropdown. I followed the tutorial at
Here is my custom AutoCompleteTextView
public class AutoCompleteDelay extends AutoCompleteTextView {
private static final int MESSAGE_TEXT_CHANGED = 100;
private static final int DEFAULT_AUTOCOMPLETE_DELAY = 750;
private int mAutoCompleteDelay = DEFAULT_AUTOCOMPLETE_DELAY;
private ProgressBar mLoadingIndicator;
private final Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
AutoCompleteDelay.super.performFiltering((CharSequence) msg.obj, msg.arg1);
}
};
public AutoCompleteDelay(Context context, AttributeSet attrs) {
super(context, attrs);
}
public void setLoadingIndicator(ProgressBar progressBar) {
mLoadingIndicator = progressBar;
}
public void setAutoCompleteDelay(int autoCompleteDelay) {
mAutoCompleteDelay = autoCompleteDelay;
}
@Override
protected void performFiltering(CharSequence text, int keyCode) {
if (mLoadingIndicator != null) {
mLoadingIndicator.setVisibility(View.VISIBLE);
}
mHandler.removeMessages(MESSAGE_TEXT_CHANGED);
mHandler.sendMessageDelayed(mHandler.obtainMessage(MESSAGE_TEXT_CHANGED, text), mAutoCompleteDelay);
}
@Override
public void onFilterComplete(int count) {
if (mLoadingIndicator != null) {
mLoadingIndicator.setVisibility(View.GONE);
}
super.onFilterComplete(count);
}
}
This is my custom Adapter
public class SearchAdapter extends BaseAdapter implements Filterable {
private static final int MAX_RESULTS = 10;
private Context mContext;
private List<User> resultList = new ArrayList<User>();
public SearchAdapter(Context context) {
mContext = context;
}
@Override
public int getCount() {
return resultList.size();
}
@Override
public User getItem(int index) {
return resultList.get(index);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.search_results, parent, false);
}
((TextView) convertView.findViewById(R.id.user_name)).setText(getItem(position).getName());
((TextView) convertView.findViewById(R.id.user_phone)).setText(getItem(position).getPhone());
return convertView;
}
@Override
public Filter getFilter() {
Filter filter = new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
FilterResults filterResults = new FilterResults();
if (constraint != null) {
List<User> users = findUsers(mContext, constraint.toString());
// Assign the data to the FilterResults
filterResults.values = users;
filterResults.count = users.size();
}
return filterResults;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
if (results != null && results.count > 0) {
resultList = (List<User>) results.values;
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}};
return filter;
}
/**
* Returns a search result for the given book title.
*/
private List<User> findUsers(Context context, String query) {
// GoogleBooksProtocol is a wrapper for the Google Books API
SearchUser request = new SearchUser(context);
return request.sendRequest(query);
}
}
This is xml file for Adapter View
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:orientation="vertical">
<TextView
android:id="@+id/user_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Name"
android:textSize="18dp"
android:textIsSelectable="false"
android:layout_marginBottom="4dp"
android:textColor="@color/abc_background_cache_hint_selector_material_dark" />
<TextView
android:id="@+id/user_phone"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="0000000000"
android:textSize="16dp"
android:textIsSelectable="false"
android:layout_marginBottom="4dp"
android:textColor="@color/switch_thumb_disabled_material_dark" />
</LinearLayout>
This is the xml file where I am using 'AutoCompleteTextView`
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/error_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="User already exists"
android:visibility="gone"
android:textStyle="bold"
android:textColor="@color/design_textinput_error_color_light"
android:singleLine="true"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.example.krazz.futsaladmin.classes.AutoCompleteDelay
android:id="@+id/query"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:imeOptions="actionNext"
android:inputType="textAutoComplete"></com.example.krazz.futsaladmin.classes.AutoCompleteDelay>
</android.support.design.widget.TextInputLayout>
<ProgressBar
android:id="@+id/pb_loading_indicator"
style="?android:attr/progressBarStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:visibility="gone" />
</RelativeLayout>
</LinearLayout>
This is the method that returns ArrayList<User>
public ArrayList<User> sendRequest(final String query) {
RequestQueue requestQueue = VolleySingleton.getsInstance().getmRequestQueue();
//mErrorText.setVisibility(View.GONE);
String url = String.format(AppConfig.URL_SEARCH_USERS, query, AppConfig.APP_KEY, 4);
debug.L(url);
StringRequest strReq = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
debug.L(response.toString());
JSONObject jObj = new JSONObject(response);
JSONArray jsonArray = jObj.getJSONArray("results");
if(jsonArray != null){
for(int i=0; i<jsonArray.length(); i++){
JSONObject currentUser = jsonArray.getJSONObject(i);
int id = currentUser.getInt("id");
String name = currentUser.getString("name");
String phone = currentUser.getString("phone");
User users = new User(id, name, phone);
searchArrayList.add(users);
}
}
else{
/*mErrorText.setText("Users not found.");
mErrorText.setVisibility(View.VISIBLE);*/
debug.L("users not found");
}
} catch (JSONException e) {
/*mErrorText.setText(e.getMessage());
mErrorText.setVisibility(View.VISIBLE);*/
debug.L(e.toString());
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
/*mErrorText.setText(R.string.error_try_again);
mErrorText.setVisibility(View.VISIBLE);*/
debug.L(error.toString());
}
});
requestQueue.add(strReq);
return searchArrayList;
}
And finally here is where I am using my AutoCompleteTextView
mQueryInputView = (AutoCompleteDelay) view.findViewById(R.id.query);
mErrorText = (TextView) view.findViewById(R.id.error_text);
mQueryInputView.setThreshold(THRESHOLD);
mQueryInputView.setAdapter(new SearchAdapter(mContext));
mQueryInputView.setLoadingIndicator((ProgressBar) view.findViewById(R.id.pb_loading_indicator));
mQueryInputView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
User book = (User) adapterView.getItemAtPosition(position);
mQueryInputView.setText(book.getPhone());
}
});
There is no error or anything but my dropdown suggestion list is not showing even though API returns the values. What am I doing wrong?
