動態表格顯示使用kivy和sqlite 3

Question

我正在使用GUI來管理庫存（Python 3.4，Sqlite3和Kivy 1.9.1）並且這個想法是能夠基於它們不同的特徵識別產品，被列在數據庫中。

有沒有辦法使用kivy顯示sqlite表？我認爲ListView可能是解決方案，但我真的很努力去理解如何用args_converter來製作一個CustomListItem，以獲得其中有不同標籤的多個列。

Answer 1

是的，你可以使用RecycleView這個。
試試這個例子：

import sqlite3 as lite 

con = lite.connect('test.db') 
cur = con.cursor() 

try: 
    with con: 
     cur.execute("CREATE TABLE Cars(Id INT, Name TEXT, Price INT)") 
     cur.execute("INSERT INTO Cars VALUES(1,'Audi',52642)") 
     cur.execute("INSERT INTO Cars VALUES(2,'Mercedes',57127)") 
     cur.execute("INSERT INTO Cars VALUES(3,'Skoda',9000)") 
     cur.execute("INSERT INTO Cars VALUES(4,'Volvo',29000)") 
     cur.execute("INSERT INTO Cars VALUES(5,'Bentley',350000)") 
     cur.execute("INSERT INTO Cars VALUES(6,'Citroen',21000)") 
     cur.execute("INSERT INTO Cars VALUES(7,'Hummer',41400)") 
     cur.execute("INSERT INTO Cars VALUES(8,'Volkswagen',21600)") 
except: 
    pass 


from kivy.uix.boxlayout import BoxLayout 
from kivy.base import runTouchApp 
from kivy.lang import Builder 
from kivy.properties import ListProperty 


Builder.load_string(""" 

<MyLayout>: 
    Button: 
     text: "Get data" 
     on_press: root.get_data() 
    RecycleView: 
     data: [{'text':"Id:{} Brand:{} Km:{}".format(id,name,km)} for id,name,km in root.rows] 
     viewclass: "Label" 
     RecycleBoxLayout: 
      default_size: None, dp(56) 
      default_size_hint: 1, None 
      size_hint_y: None 
      height: self.minimum_height 
      orientation: 'vertical' 

""") 


class MyLayout(BoxLayout): 
    rows = ListProperty([("Id","Brand","Price")]) 
    def get_data(self): 
     cur.execute("SELECT * FROM Cars") 
     self.rows = cur.fetchall() 
     print(self.rows) 


runTouchApp(MyLayout())