/*
* Firetweet - Twitter client for Android
*
* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.getlantern.firetweet.preference;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import java.io.File;
import java.io.FileFilter;
public class ClearCachePreference extends AsyncTaskPreference {
public ClearCachePreference(final Context context) {
this(context, null);
}
public ClearCachePreference(final Context context, final AttributeSet attrs) {
this(context, attrs, android.R.attr.preferenceStyle);
}
public ClearCachePreference(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
}
@Override
protected void doInBackground() {
final Context context = getContext();
if (context == null) return;
final File externalCacheDir = context.getExternalCacheDir();
if (externalCacheDir != null) {
for (final File file : externalCacheDir.listFiles((FileFilter) null)) {
deleteRecursive(file);
}
}
final File internalCacheDir = context.getCacheDir();
if (internalCacheDir != null) {
for (final File file : internalCacheDir.listFiles((FileFilter) null)) {
deleteRecursive(file);
}
}
}
private static void deleteRecursive(final File f) {
if (f.isDirectory()) {
for (final File c : f.listFiles()) {
deleteRecursive(c);
}
}
if (!f.delete()) {
Log.w(LOGTAG, String.format("Unable to delete %s", f));
}
}
}