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package github.ankushsachdeva.emojicon;
import android.content.Context;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
/**
* Created by aleksandr.naumov on 14.05.2015.
*/
class EmojiconGroupsLoader {
private static EmojiconGroupsLoader sInstance;
private final List<EmojiconGroup> mGroups;
public static synchronized EmojiconGroupsLoader getInstance(Context context) {
if (sInstance == null) {
sInstance = new EmojiconGroupsLoader(context);
}
return sInstance;
}
private EmojiconGroupsLoader(Context context) {
try {
mGroups = parseEmojiXml(context);
} catch (IOException | XmlPullParserException ex) {
throw new RuntimeException(ex);
}
}
private List<EmojiconGroup> parseEmojiXml(Context context) throws IOException, XmlPullParserException {
ArrayList<EmojiconGroup> groups = new ArrayList<>();
XmlPullParser parser = context.getResources().getXml(R.xml.emoji);
parser.next();
String groupName = null;
for (int eventType = parser.getEventType(); eventType != XmlPullParser.END_DOCUMENT; eventType = parser.next()) {
switch (eventType) {
case XmlPullParser.START_TAG:
if ("group".equals(parser.getName())) {
groupName = parser.getAttributeValue(0);
}
break;
case XmlPullParser.TEXT:
if (groupName != null) {
groups.add(EmojiconGroup.fromString(
parser.getText(),
getGroupNameIcon(groupName)
));
groupName = null;
}
break;
}
}
return groups;
}
private int getGroupNameIcon(String groupName) {
for (KnownGroupNames knownGroupName : KnownGroupNames.values()) {
if (groupName.toLowerCase().equals(knownGroupName.name().toLowerCase())) {
return knownGroupName.getIconResId();
}
}
throw new IllegalArgumentException(String.format("Unknown group name '%s'", groupName));
}
public List<EmojiconGroup> getGroups() {
return mGroups;
}
public enum KnownGroupNames {
RECENT(R.drawable.ic_emoji_recent_light),
SMILES(R.drawable.ic_emoji_people_light),
NATURE(R.drawable.ic_emoji_nature_light),
OBJECTS(R.drawable.ic_emoji_objects_light),
TECH(R.drawable.ic_emoji_places_light),
SYMBOLS(R.drawable.ic_emoji_symbols_light);
private final int iconResId;
KnownGroupNames(int iconResId) {
this.iconResId = iconResId;
}
public int getIconResId() {
return iconResId;
}
}
}
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