/** 初始化书列表 */
private void initBookList() {
bookList.clear();
Cursor cursor = DBHelper.getAllCursor(db, "book_list");
while (cursor.moveToNext()) {
String bookname = cursor.getString(cursor.getColumnIndex("bookname"));
File file = new File(bookname);
bookList.add(file);
}
}
public void openDb() {
if (db == null || !db.isOpen()) {
db = DBHelper.openDb(this);
}
}