Question

@Override
public void onCreate(SQLiteDatabase db) {
    db.execSQL("CREATE TABLE " + INFR_TABLE
            + "(_id INTEGER PRIMARY KEY NOT NULL," + CATEGORY + " integer,"
            + STATUS + " text, " + FEEDBACK + " text, " + DATE + " text,  "
            + IMAGE + " BLOB)");

    System.out.println("Database Createeeeeeeeeeeeeee");

}




public byte getimage( String id)

    {
        db = this.getReadableDatabase();
        cursor = db.query(INFR_TABLE, new String[] { "_id", "cateogry",
                "status", "feedback", "date", "image" }, null, null, null,
                null, null);

        return 0;

    }

我将数据库中的图像保存为Blob，我想基于id获取特定的图像，但是我无法在字节中获取它，因为我必须在图像视图中打印它请帮我怎样根据id从数据库中获取图像。

Answer 1

public byte[] getimage(String id)

    {

        db = this.getReadableDatabase();
        cursor = db.query(INFR_TABLE, new String[] { "_id", "cateogry",
                "status", "feedback", "date", "image" }, ID + "=?",
                new String[] { String.valueOf(id) }, null, null, null, null);
        cursor.moveToFirst();
        byteImage2 = cursor.getBlob(cursor.getColumnIndex("image"));
        // setImage(byteImage2);
        cursor.close();
        return byteImage2;

    }

请添加此代码并享受.........如果有任何查询更新我

如何根据id从Sqlite读取图像并在image-view android中显示

1 个答案: