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/*
This file is part of Subsonic.
Subsonic is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Subsonic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Subsonic. If not, see <http://www.gnu.org/licenses/>.
Copyright 2009 (C) Sindre Mehus
*/
package github.daneren2005.dsub.view;
import android.content.Context;
import android.os.Handler;
import android.util.Log;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.LinearLayout;
import java.util.WeakHashMap;
public class UpdateView extends LinearLayout {
private static final String TAG = UpdateView.class.getSimpleName();
private static final WeakHashMap<UpdateView, ?> INSTANCES = new WeakHashMap<UpdateView, Object>();
private static Handler handler;
public UpdateView(Context context) {
super(context);
setLayoutParams(new AbsListView.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
INSTANCES.put(this, null);
int instanceCount = INSTANCES.size();
if (instanceCount > 50) {
Log.w(TAG, instanceCount + " live UpdateView instances");
}
startUpdater();
}
@Override
public void setPressed(boolean pressed) {
}
private static synchronized void startUpdater() {
if (handler != null) {
return;
}
handler = new Handler();
Runnable runnable = new Runnable() {
@Override
public void run() {
updateAll();
handler.postDelayed(this, 1000L);
}
};
handler.postDelayed(runnable, 1000L);
}
private static void updateAll() {
try {
for (UpdateView view : INSTANCES.keySet()) {
if (view.isShown()) {
view.update();
}
}
} catch (Throwable x) {
Log.w(TAG, "Error when updating song views.", x);
}
}
protected void update() {
}
}
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