Android App Development ฉบับสมบูรณ์

public Book insertBook(Book book) {
ContentValues values = new ContentValues();
values.put(SimpleSQLiteHelper.COLUMN_ISBN, book.getIsbn());
values.put(SimpleSQLiteHelper.COLUMN_TITLE, book.getTitle());
values.put(SimpleSQLiteHelper.COLUMN_PRICE, book.getPrice());
values.put(SimpleSQLiteHelper.COLUMN_PUBLISHER, book.getPublisher());
long insertId = database.insert(SimpleSQLiteHelper.TABLE_BOOKS, null,
values);
5
ส่วนเพิ่มรายการหนังสือ
}
Cursor cursor = database.query(SimpleSQLiteHelper.TABLE_BOOKS,
allColumns, SimpleSQLiteHelper.COLUMN_ID + " = " + insertId,
null, null, null, null);
cursor.moveToFirst();
return cursorToBook(cursor);
public void deleteBook(Book book) {
long id = book.getId();
Log.d(TAG,"Book deleted with id: " + id);
database.delete(SimpleSQLiteHelper.TABLE_BOOKS,
SimpleSQLiteHelper.COLUMN_ID + " = " + id, null);
}
public void updateBook(Book book) {
ContentValues values = new ContentValues();
values.put(SimpleSQLiteHelper.COLUMN_ISBN, book.getIsbn());
values.put(SimpleSQLiteHelper.COLUMN_TITLE, book.getTitle());
values.put(SimpleSQLiteHelper.COLUMN_PRICE, book.getPrice());
values.put(SimpleSQLiteHelper.COLUMN_PUBLISHER, book.getPublisher());
database.update(SimpleSQLiteHelper.TABLE_BOOKS, values,
SimpleSQLiteHelper.COLUMN_ID + "=" + book.getId(), null);
}
public List getAllBook() {
List comments = new ArrayList();
Cursor cursor = database.query(SimpleSQLiteHelper.TABLE_BOOKS,
allColumns, null, null, null, null, null);
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
Book comment = cursorToBook(cursor);
comments.add(comment);
cursor.moveToNext();
}
cursor.close();
return comments;
}
6
7
ส่วนลบรายการหนังสือ
ส่วนแสดงรายการหนังสือ
ส่วนอัพเดตรายการหนังสือ
}
private Book cursorToBook(Cursor cursor) {
Book book = new Book();
book.setId(cursor.getLong(0));
book.setIsbn(cursor.getString(1));
book.setTitle(cursor.getString(2));
book.setPrice(cursor.getDouble(3));
book.setPublisher(cursor.getString(4));
return book;
}
บทที ่ 11 การพัฒนาแอพพลิเคชันทำงานกับฐานข้อมูล 221