/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cn.walcl.ulauncher;
import cn.walcl.ulauncher.appdb.AppDB;
import cn.walcl.ulauncher.settings.LauncherSettings;
import cn.walcl.ulauncher.settings.Preferences;
import android.app.Application;
import android.content.ContentResolver;
import android.content.IntentFilter;
import android.database.ContentObserver;
import android.os.Handler;
public class LauncherApplication extends Application {
private static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE = "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
private static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE = "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
private LauncherModel mModel;
private IconCache mIconCache;
private AppDB mAppDB;
@Override
public void onCreate() {
//VMRuntime.getRuntime().setMinimumHeapSize(4 * 1024 * 1024);
super.onCreate();
mIconCache = new IconCache(this);
mAppDB = new AppDB(this, mIconCache);
mModel = new LauncherModel(this, mIconCache);
// Register intent receivers
IntentFilter filter = new IntentFilter(AppDB.INTENT_DB_CHANGED);
registerReceiver(mModel, filter);
filter = new IntentFilter();
filter.addAction(ACTION_EXTERNAL_APPLICATIONS_AVAILABLE);
filter.addAction(ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE);
registerReceiver(mModel, filter);
// Register for changes to the favorites
ContentResolver resolver = getContentResolver();
resolver.registerContentObserver(LauncherSettings.Favorites.CONTENT_URI, true,
mFavoritesObserver);
}
/**
* There's no guarantee that this function is ever called.
*/
@Override
public void onTerminate() {
super.onTerminate();
unregisterReceiver(mModel);
ContentResolver resolver = getContentResolver();
resolver.unregisterContentObserver(mFavoritesObserver);
Preferences.getInstance().setLauncher(null);
}
/**
* Receives notifications whenever the user favorites have changed.
*/
private final ContentObserver mFavoritesObserver = new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
mModel.startLoader(LauncherApplication.this, false);
}
};
LauncherModel setLauncher(Launcher launcher) {
mModel.initialize(launcher);
return mModel;
}
IconCache getIconCache() {
return mIconCache;
}
LauncherModel getModel() {
return mModel;
}
AppDB getAppDB() {
return mAppDB;
}
}