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org.holoeverywhere.ArrayAdapter Maven / Gradle / Ivy
package org.holoeverywhere;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Filter;
import android.widget.Filterable;
import android.widget.TextView;
public class ArrayAdapter extends BaseAdapter implements Filterable {
private class ArrayFilter extends Filter {
@Override
protected FilterResults performFiltering(CharSequence prefix) {
FilterResults results = new FilterResults();
if (mOriginalValues == null) {
synchronized (mLock) {
mOriginalValues = new ArrayList(mObjects);
}
}
if (prefix == null || prefix.length() == 0) {
ArrayList list;
synchronized (mLock) {
list = new ArrayList(mOriginalValues);
}
results.values = list;
results.count = list.size();
} else {
String prefixString = prefix.toString().toLowerCase();
ArrayList values;
synchronized (mLock) {
values = new ArrayList(mOriginalValues);
}
final int count = values.size();
final ArrayList newValues = new ArrayList();
for (int i = 0; i < count; i++) {
final T value = values.get(i);
final String valueText = value.toString().toLowerCase();
if (valueText.startsWith(prefixString)) {
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;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,
FilterResults results) {
mObjects = (List) results.values;
if (results.count > 0) {
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
}
public static ArrayAdapter createFromResource(
Context context, int textArrayResId, int textViewResId) {
CharSequence[] strings = context.getResources().getTextArray(
textArrayResId);
return new ArrayAdapter(context, textViewResId, strings);
}
private boolean mAutoSetNotifyFlag = true;
private Context mContext;
private int mDropDownResource;
private int mFieldId = 0;
private ArrayFilter mFilter;
private LayoutInflater mInflater;
private final Object mLock = new Object();
private boolean mNotifyOnChange = true;
private List mObjects;
private ArrayList mOriginalValues;
private int mResource;
public ArrayAdapter(Context context, int textViewResourceId) {
init(context, textViewResourceId, 0, new ArrayList());
}
public ArrayAdapter(Context context, int resource, int textViewResourceId) {
init(context, resource, textViewResourceId, new ArrayList());
}
public ArrayAdapter(Context context, int resource, int textViewResourceId,
List objects) {
init(context, resource, textViewResourceId, objects);
}
public ArrayAdapter(Context context, int resource, int textViewResourceId,
T[] objects) {
init(context, resource, textViewResourceId, Arrays.asList(objects));
}
public ArrayAdapter(Context context, int textViewResourceId, List objects) {
init(context, textViewResourceId, 0, objects);
}
public ArrayAdapter(Context context, int textViewResourceId, T[] objects) {
init(context, textViewResourceId, 0, Arrays.asList(objects));
}
public void add(T object) {
synchronized (mLock) {
if (mOriginalValues != null) {
mOriginalValues.add(object);
} else {
mObjects.add(object);
}
}
if (mNotifyOnChange) {
notifyDataSetChanged();
}
}
public void addAll(Collection collection) {
synchronized (mLock) {
if (mOriginalValues != null) {
mOriginalValues.addAll(collection);
} else {
mObjects.addAll(collection);
}
}
if (mNotifyOnChange) {
notifyDataSetChanged();
}
}
public void addAll(T... items) {
synchronized (mLock) {
if (mOriginalValues != null) {
Collections.addAll(mOriginalValues, items);
} else {
Collections.addAll(mObjects, items);
}
}
if (mNotifyOnChange) {
notifyDataSetChanged();
}
}
public void clear() {
synchronized (mLock) {
if (mOriginalValues != null) {
mOriginalValues.clear();
} else {
mObjects.clear();
}
}
if (mNotifyOnChange) {
notifyDataSetChanged();
}
}
private View createViewFromResource(int position, View convertView,
ViewGroup parent, int resource) {
View view;
TextView text = null;
if (convertView == null) {
view = FontLoader.apply(mInflater.inflate(resource, parent, false));
} else {
view = convertView;
}
try {
if (view != null) {
if (mFieldId > 0) {
text = (TextView) view.findViewById(mFieldId);
} else {
text = (TextView) view.findViewById(android.R.id.text1);
}
if (text == null && view instanceof TextView) {
text = (TextView) view;
}
}
if (text == null) {
throw new NullPointerException();
}
} catch (RuntimeException e) {
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);
}
T item = getItem(position);
if (item instanceof CharSequence) {
text.setText((CharSequence) item);
} else {
text.setText(item.toString());
}
return view;
}
public Context getContext() {
return mContext;
}
@Override
public int getCount() {
return mObjects.size();
}
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
return createViewFromResource(position, convertView, parent,
mDropDownResource);
}
@Override
public Filter getFilter() {
if (mFilter == null) {
mFilter = new ArrayFilter();
}
return mFilter;
}
@Override
public T getItem(int position) {
return mObjects.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
public int getPosition(T item) {
return mObjects.indexOf(item);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return createViewFromResource(position, convertView, parent, mResource);
}
private void init(Context context, int resource, int textViewResourceId,
List objects) {
mContext = context;
mInflater = LayoutInflater.from(context);
mResource = mDropDownResource = resource;
mObjects = objects;
mFieldId = textViewResourceId;
}
public void insert(T object, int index) {
synchronized (mLock) {
if (mOriginalValues != null) {
mOriginalValues.add(index, object);
} else {
mObjects.add(index, object);
}
}
if (mNotifyOnChange) {
notifyDataSetChanged();
}
}
public boolean isAutoSetNotifyFlag() {
return mAutoSetNotifyFlag;
}
@Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
if (mAutoSetNotifyFlag) {
mNotifyOnChange = true;
}
}
public void remove(T object) {
synchronized (mLock) {
if (mOriginalValues != null) {
mOriginalValues.remove(object);
} else {
mObjects.remove(object);
}
}
if (mNotifyOnChange) {
notifyDataSetChanged();
}
}
public void setAutoSetNotifyFlag(boolean autoSetNotifyFlag) {
this.mAutoSetNotifyFlag = autoSetNotifyFlag;
}
public void setDropDownViewResource(int resource) {
this.mDropDownResource = resource;
}
public void setNotifyOnChange(boolean notifyOnChange) {
mNotifyOnChange = notifyOnChange;
}
public void sort(Comparator comparator) {
synchronized (mLock) {
if (mOriginalValues != null) {
Collections.sort(mOriginalValues, comparator);
} else {
Collections.sort(mObjects, comparator);
}
}
if (mNotifyOnChange) {
notifyDataSetChanged();
}
}
}
