I'm having a hard time using AutoCompleteTextView with accented words.
For example:
I'm looking for bank branch names, by typing only ita the bank Itaú is finding, as shown below:
However,ifItypethelastuofthewordItaúwithouttheaccent,autocompletecannolongerfindit,asshownbelow:
Isthereanywaytoignoretheseaccentsandfindwhetherornottoplacetextwithaccents?
Note:I'malreadydoingwithcustomadapter,whichimplementsFilterable
Thefollowingisthecustomadaptercode:
publicclassHRArrayAdapter<T>extendsBaseAdapterimplementsFilterable{privateList<T>mObjects;privatefinalObjectmLock=newObject();privateintmResource;privateintmFieldId=0;privatebooleanmNotifyOnChange=true;privateContextmContext;privateArrayList<T>mOriginalValues;privateHRArrayFiltermFilter;privateLayoutInflatermInflater;publicHRArrayAdapter(Contextcontext,inttextViewResourceId){init(context,textViewResourceId,0,newArrayList<T>());}publicHRArrayAdapter(Contextcontext,intresource,inttextViewResourceId){init(context,resource,textViewResourceId,newArrayList<T>());}publicHRArrayAdapter(Contextcontext,inttextViewResourceId,T[]objects){init(context,textViewResourceId,0,Arrays.asList(objects));}publicHRArrayAdapter(Contextcontext,intresource,inttextViewResourceId,T[]objects){init(context,resource,textViewResourceId,Arrays.asList(objects));}publicHRArrayAdapter(Contextcontext,inttextViewResourceId,List<T>objects){init(context,textViewResourceId,0,objects);}publicHRArrayAdapter(Contextcontext,intresource,inttextViewResourceId,List<T>objects){init(context,resource,textViewResourceId,objects);}publicvoidadd(Tobject){if(mOriginalValues!=null){synchronized(mLock){mOriginalValues.add(object);if(mNotifyOnChange)notifyDataSetChanged();}}else{mObjects.add(object);if(mNotifyOnChange)notifyDataSetChanged();}}publicvoidinsert(Tobject,intindex){if(mOriginalValues!=null){synchronized(mLock){mOriginalValues.add(index,object);if(mNotifyOnChange)notifyDataSetChanged();}}else{mObjects.add(index,object);if(mNotifyOnChange)notifyDataSetChanged();}}publicvoidremove(Tobject){if(mOriginalValues!=null){synchronized(mLock){mOriginalValues.remove(object);}}else{mObjects.remove(object);}if(mNotifyOnChange)notifyDataSetChanged();}publicvoidclear(){if(mOriginalValues!=null){synchronized(mLock){mOriginalValues.clear();}}else{mObjects.clear();}if(mNotifyOnChange)notifyDataSetChanged();}publicvoidsort(Comparator<?superT>comparator){Collections.sort(mObjects,comparator);if(mNotifyOnChange)notifyDataSetChanged();}@OverridepublicvoidnotifyDataSetChanged(){super.notifyDataSetChanged();mNotifyOnChange=true;}publicvoidsetNotifyOnChange(booleannotifyOnChange){mNotifyOnChange=notifyOnChange;}privatevoidinit(Contextcontext,intresource,inttextViewResourceId,List<T>objects){mContext=context;mInflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);mResource=mDropDownResource=resource;mObjects=objects;mFieldId=textViewResourceId;}publicContextgetContext(){returnmContext;}publicintgetCount(){returnmObjects.size();}publicTgetItem(intposition){returnmObjects.get(position);}publicintgetPosition(Titem){returnmObjects.indexOf(item);}publiclonggetItemId(intposition){returnposition;}publicViewgetView(intposition,ViewconvertView,ViewGroupparent){returncreateViewFromResource(position,convertView,parent,mResource);}privateViewcreateViewFromResource(intposition,ViewconvertView,ViewGroupparent,intresource){Viewview;TextViewtext;if(convertView==null){view=mInflater.inflate(resource,parent,false);}else{view=convertView;}try{if(mFieldId==0){//Ifnocustomfieldisassigned,assumethewholeresourceisaTextViewtext=(TextView)view;}else{//Otherwise,findtheTextViewfieldwithinthelayouttext=(TextView)view.findViewById(mFieldId);}}catch(ClassCastExceptione){Log.e("ArrayAdapter", "You must supply a resource ID for a TextView");
throw new IllegalStateException(
"ArrayAdapter requires the resource ID to be a TextView", e);
}
text.setText(getItem(position).toString());
return view;
}
public void setDropDownViewResource(int resource) {
this.mDropDownResource = resource;
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
return createViewFromResource(position, convertView, parent, mDropDownResource);
}
public static HRArrayAdapter<CharSequence> createFromResource(Context context,
int textArrayResId, int textViewResId) {
CharSequence[] strings = context.getResources().getTextArray(textArrayResId);
return new HRArrayAdapter<CharSequence>(context, textViewResId, strings);
}
public HRArrayFilter getFilter() {
if (mFilter == null) {
mFilter = new HRArrayFilter();
}
return mFilter;
}
private class HRArrayFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence prefix) {
FilterResults results = new FilterResults();
if (mOriginalValues == null) {
synchronized (mLock) {
mOriginalValues = new ArrayList<T>(mObjects);
}
}
if (prefix == null || prefix.length() == 0) {
synchronized (mLock) {
ArrayList<T> list = new ArrayList<T>(mOriginalValues);
results.values = list;
results.count = list.size();
}
} else {
String prefixString = prefix.toString().toLowerCase();
ArrayList<T> values = mOriginalValues;
final int count = values.size();
final ArrayList<T> newValues = new ArrayList<T>(count);
final ArrayList<String> strippedAccents = new ArrayList<String>();
for (int i = 0; i < count; i++) {
final T value = values.get(i);
final String valueText = value.toString().toLowerCase();
String valueTextNoPalatals = stripAccents(valueText);
String prefixStringNoPalatals = stripAccents(prefixString);
// First match against the whole, non-splitted value
if (valueText.startsWith(prefixString) || valueTextNoPalatals.startsWith(prefixStringNoPalatals)) {
newValues.add(value);
} else {
final String[] words = valueText.split(" ");
final int wordCount = words.length;
for (int k = 0; k < wordCount; k++) {
if (words[k].startsWith(prefixString)) {
newValues.add(value);
break;
}
}
}
}
results.values = newValues;
results.count = newValues.size();
}
return results;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults results) {
//noinspection unchecked
mObjects = (List<T>) results.values;
if (results.count > 0) {
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
}
private static Map<Character, Character> MAP_NORM;
private static String stripAccents(String value) {
if (MAP_NORM == null || MAP_NORM.size() == 0)
{
MAP_NORM = new HashMap<Character, Character>();
MAP_NORM.put('À', 'A');
MAP_NORM.put('Á', 'A');
MAP_NORM.put('Â', 'A');
MAP_NORM.put('Ã', 'A');
MAP_NORM.put('Ä', 'A');
MAP_NORM.put('È', 'E');
MAP_NORM.put('É', 'E');
MAP_NORM.put('Ê', 'E');
MAP_NORM.put('Ë', 'E');
MAP_NORM.put('Í', 'I');
MAP_NORM.put('Ì', 'I');
MAP_NORM.put('Î', 'I');
MAP_NORM.put('Ï', 'I');
MAP_NORM.put('Ù', 'U');
MAP_NORM.put('Ú', 'U');
MAP_NORM.put('Û', 'U');
MAP_NORM.put('Ü', 'U');
MAP_NORM.put('Ò', 'O');
MAP_NORM.put('Ó', 'O');
MAP_NORM.put('Ô', 'O');
MAP_NORM.put('Õ', 'O');
MAP_NORM.put('Ö', 'O');
MAP_NORM.put('Ñ', 'N');
MAP_NORM.put('Ç', 'C');
MAP_NORM.put('ª', 'A');
MAP_NORM.put('º', 'O');
MAP_NORM.put('§', 'S');
MAP_NORM.put('³', '3');
MAP_NORM.put('²', '2');
MAP_NORM.put('¹', '1');
MAP_NORM.put('à', 'a');
MAP_NORM.put('á', 'a');
MAP_NORM.put('â', 'a');
MAP_NORM.put('ã', 'a');
MAP_NORM.put('ä', 'a');
MAP_NORM.put('è', 'e');
MAP_NORM.put('é', 'e');
MAP_NORM.put('ê', 'e');
MAP_NORM.put('ë', 'e');
MAP_NORM.put('í', 'i');
MAP_NORM.put('ì', 'i');
MAP_NORM.put('î', 'i');
MAP_NORM.put('ï', 'i');
MAP_NORM.put('ù', 'u');
MAP_NORM.put('ú', 'u');
MAP_NORM.put('û', 'u');
MAP_NORM.put('ü', 'u');
MAP_NORM.put('ò', 'o');
MAP_NORM.put('ó', 'o');
MAP_NORM.put('ô', 'o');
MAP_NORM.put('õ', 'o');
MAP_NORM.put('ö', 'o');
MAP_NORM.put('ñ', 'n');
MAP_NORM.put('ç', 'c');
}
if (value == null) {
return "";
}
StringBuilder sb = new StringBuilder(value);
for(int i = 0; i < value.length(); i++) {
Character c = MAP_NORM.get(sb.charAt(i));
if(c != null) {
sb.setCharAt(i, c.charValue());
}
}
return sb.toString();
}
}