Java tutorial
/* * Copyright (C) 2013 jonas.oreland@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.runnerup.util; import android.annotation.TargetApi; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Build; @TargetApi(Build.VERSION_CODES.FROYO) public class SimpleCursorLoader extends android.support.v4.content.CursorLoader { private final SQLiteDatabase mDB; private final String mTable; private final ForceLoadContentObserver mObserver; public SimpleCursorLoader(final Context context, final SQLiteDatabase db, final String table, final String[] projection, final String selection, final String[] selectionArgs, final String sortOrder) { super(context, null, projection, selection, selectionArgs, sortOrder); mDB = db; mTable = table; mObserver = new ForceLoadContentObserver(); } @Override public Cursor loadInBackground() { final Cursor cursor = mDB.query(mTable, getProjection(), getSelection(), getSelectionArgs(), null, null, getSortOrder()); if (cursor != null) { // Ensure the cursor window is filled cursor.getCount(); cursor.registerContentObserver(mObserver); } return cursor; } }