事件处理程序TabbedPanel

我无法找到有关每个元素的事件处理程序的信息（如标签，按钮，TabbedPanel等）事件处理程序TabbedPanel

我有一个默认显示TabbedPanel第一个标签的问题。

程序启动时，它显示第一个选项卡“tab_def”，它是空的。但我想看到通过SHOW_DEF（）获得的文本。如果我点击另一个选项卡，然后点击第一个选项卡 - 我得到我想要的。

我该如何解决？在此先感谢。

.kv代码

<GeneralForm>: 
    do_default_tab: False 
    txt1:txt1 
    txt2:txt2 
    txt3:txt3 
    txt_def:txt_def 
    tab1:tab1 
    tab_def:tab_def 

    TabbedPanelItem: 
     id:tab_def 
     text: 'Today' 
     on_release:root.SHOW_DEF() 
     BoxLayout: 
      ScrollView: 
       Label: 
        id:txt_def 
        text:''  <=== !!!! 
        text_size: self.width, None 
        height: self.texture_size[1] 
        size_hint_y: None 
        halign: 'center' 
    TabbedPanelItem: 
     id:tab1 
     text: 'Mon' 
     on_release: root.SHOW_CONTENT(tab1.text,'txt1') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       ScrollView: 
        Label: 
         id:txt1 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab1.text) 
       Button: 
        text: 'Exit' 
        on_press: root.EXIT()

的.py代码

class GeneralForm(TabbedPanel): 
    shutil.copy('data','data_backup') 
    txt1 = ObjectProperty() 
    txt2 = ObjectProperty() 
    txt_def = ObjectProperty() 


    def SHOW_DEF(self): 
     now_date = datetime.date.today() 
     TIME=now_date.weekday() 
     if TIME==0: 
      DDAY='Mon' 
     elif TIME==1: 
      DDAY='Tue' 
     elif TIME==2: 
      DDAY='Wed' 
     elif TIME==3: 
      DDAY='Thu' 
     elif TIME==4: 
      DDAY='Fri' 
     elif TIME==5: 
      DDAY='Sat' 
     elif TIME==6: 
      DDAY='Sun' 

     DATA=GeneralForm.PARSE(self,DDAY) 
     DATA=DATA.split('|||') 
     DATA='\n'.join(DATA) 

     self.txt_def.text=DATA <======= !!!

.py文件的全码：

import shutil, datetime 
from kivy.app import App 
from kivy.uix.boxlayout import BoxLayout 
from kivy.properties import ObjectProperty 
from kivy.uix.tabbedpanel import TabbedPanel 
from kivy.uix.label import Label 
from kivy.uix.popup import Popup 
from kivy.uix.button import Button 
from kivy.uix.scrollview import ScrollView 
from kivy.uix.textinput import TextInput 
############################################################################### 

class GeneralForm(TabbedPanel): 
    shutil.copy('data','data_backup') 
    txt1 = ObjectProperty() 
    txt2 = ObjectProperty() 
    txt3 = ObjectProperty() 
    txt4 = ObjectProperty() 
    txt5 = ObjectProperty() 
    txt6 = ObjectProperty() 
    txt7 = ObjectProperty() 
    txt_def = ObjectProperty() 


    def SHOW_DEF(self): 
     now_date = datetime.date.today() 
     TIME=now_date.weekday() 
     if TIME==0: 
      DDAY='Mon' 
     elif TIME==1: 
      DDAY='Tue' 
     elif TIME==2: 
      DDAY='Wed' 
     elif TIME==3: 
      DDAY='Thu' 
     elif TIME==4: 
      DDAY='Fri' 
     elif TIME==5: 
      DDAY='Sat' 
     elif TIME==6: 
      DDAY='Sun' 

     DATA=GeneralForm.PARSE(self,DDAY) 
     DATA=DATA.split('|||') 
     DATA='\n'.join(DATA) 

     #box1=ScrollView() 
     #l1=Label(text=DATA,text_size=(self.width,None),halign='center',size_hint_y=None) 
     #box1.add_widget(l1) 
     #return box1 

     self.txt_def.text=DATA 


    def SHOW_CONTENT(self,D,TXT): 
     DATA=GeneralForm.PARSE(self,D) 
     DATA=DATA.split('|||') 
     DATA='\n'.join(DATA) 

     if TXT=='txt1': 
      self.txt1.text=DATA 
     elif TXT=='txt2': 
      self.txt2.text=DATA 
     elif TXT=='txt3': 
      self.txt3.text=DATA 
     elif TXT=='txt4': 
      self.txt4.text=DATA 
     elif TXT=='txt5': 
      self.txt5.text=DATA 
     elif TXT=='txt6': 
      self.txt6.text=DATA 
     elif TXT=='txt7': 
      self.txt7.text=DATA 

    def PARSE(self,D): 
     FILE=open('data') 
     RAW=FILE.read() 
     for i in RAW.split('====='): 
      i=i.strip() 

      if D in i: 
       DATA=i.splitlines() 
       DATA.remove(D) 
       DATA='\n'.join(DATA) 
       return(DATA) 


    def EDIT(self,D): 
     DATA=GeneralForm.PARSE(self,D) 
     DATA=DATA.split('|||') 
     DATA='\n'.join(DATA) 


     box1=BoxLayout(size_hint_y=6) 
     t1=TextInput(text=DATA) 
     box1.add_widget(t1) 

     box2=BoxLayout(size_hint_y=1) 
     b2=Button(text='Save') 
     b3=Button(text='Cancel') 
     box2.add_widget(b2) 
     box2.add_widget(b3) 

     box3=BoxLayout(orientation='vertical') 
     box3.add_widget(box1) 
     box3.add_widget(box2) 

     popup = Popup(content=box3,auto_dismiss=False,size_hint=(.75,.75),title='Edit') 
     b2.bind(on_press=lambda instance: self.SAVE_EDIT(instance, TXT=t1.text, DAY=D)) 
     b3.bind(on_press=popup.dismiss) 
     popup.open() 


    def SAVE_EDIT(self,instance,TXT,DAY): 
     TXT=TXT.strip() 
     if TXT=='': 
      pass 
     else: 
      TXT=TXT.split('\n') 
      TXT='|||'.join(TXT) 
      TMP_FILE=open('temp','w') 
      DATA=GeneralForm.PARSE(self,DAY) 
      for line in open('data'): 
       line=line.replace(DATA,TXT) 
       TMP_FILE.write(line) 
      TMP_FILE.close() 
      shutil.move('temp','data') 


    def EXIT(self): 
     App.get_running_app().stop() 


class TimeTable(App): 
    def build(self): 
     return GeneralForm() 

if __name__ == '__main__': 
    TimeTable().run()

.kv文件的

全码：

<GeneralForm>: 
    do_default_tab: False 
    #default_tab_text: 'Today' 
    #default_tab_content: root.SHOW_DEF() 

    txt1:txt1 
    txt2:txt2 
    txt3:txt3 
    txt4:txt4 
    txt5:txt5 
    txt6:txt6 
    txt7:txt7 
    txt_def:txt_def 
    tab1:tab1 
    tab_def:tab_def 

    TabbedPanelItem: 
     id:tab_def 
     text: 'Today' 
     on_release:root.SHOW_DEF() 
     BoxLayout: 
      ScrollView: 
       Label: 
        id:txt_def 
        text:'' 
        text_size: self.width, None 
        height: self.texture_size[1] 
        size_hint_y: None 
        halign: 'center' 
    TabbedPanelItem: 
     id:tab1 
     text: 'Mon' 
     on_release: root.SHOW_CONTENT(tab1.text,'txt1') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       size_hint_y:6 
       ScrollView: 
        Label: 
         id:txt1 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       size_hint_y:1 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab1.text) 
       Button: 
        text: 'Exit' 
        on_press: root.EXIT() 
    TabbedPanelItem: 
     id:tab2 
     text: 'Tue' 
     on_release: root.SHOW_CONTENT(tab2.text,'txt2') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       size_hint_y:6 
       ScrollView: 
        Label: 
         id:txt2 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       size_hint_y:1 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab2.text) 
       Button: 
        text: 'Exit' 
        on_press: root.EXIT() 
    TabbedPanelItem: 
     id:tab3 
     text: 'Wed' 
     on_release: root.SHOW_CONTENT(tab3.text,'txt3') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       size_hint_y:6 
       ScrollView: 
        Label: 
         id:txt3 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       size_hint_y:1 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab3.text) 
       Button: 
        text: 'Exit' 
        on_press: root.EXIT() 
    TabbedPanelItem: 
     id:tab4 
     text: 'Thu' 
     on_release: root.SHOW_CONTENT(tab4.text,'txt4') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       size_hint_y:6 
       ScrollView: 
        Label: 
         id:txt4 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       size_hint_y:1 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab4.text) 
       Button: 
        text: 'Exit' 
        on_press: root.EXIT() 
    TabbedPanelItem: 
     id:tab5 
     text: 'Fri' 
     on_release: root.SHOW_CONTENT(tab5.text,'txt5') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       size_hint_y:6 
       ScrollView: 
        Label: 
         id:txt5 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       size_hint_y:1 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab5.text) 
       Button: 
        text: 'Exit' 
        on_press: root.EXIT() 
    TabbedPanelItem: 
     id:tab6 
     text: 'Sat' 
     on_release: root.SHOW_CONTENT(tab6.text,'txt6') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       size_hint_y:6 
       ScrollView: 
        Label: 
         id:txt6 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       size_hint_y:1 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab6.text) 
       Button: 
        text: 'Exit' 
        on_press: root.EXIT() 
    TabbedPanelItem: 
     id:tab7 
     text: 'Sun' 
     on_release: root.SHOW_CONTENT(tab7.text,'txt7') 
     BoxLayout: 
      orientation: 'vertical' 
      BoxLayout: 
       size_hint_y:6 
       ScrollView: 
        Label: 
         id:txt7 
         text: '' 
         text_size: self.width, None 
         height: self.texture_size[1] 
         size_hint_y: None 
         halign: 'center' 
      BoxLayout: 
       size_hint_y:1 
       Button: 
        text: 'Edit' 
        on_press: root.EDIT(tab7.text) 
       Button: 
        text: 'Exit'

“数据” 文件：

===== 
Mon 
1.00 - go 
===== 
Tue 
19.00 - go 
===== 
Wed 
20.00 - go 
===== 
Thu 
21.00 - go 
===== 
Fri 
22.00 - go 
===== 
Sat 
24.00 - go 
===== 
Sun 
25.00 - go 
=====

来源

2015-02-10 Antony Makaruk

您曾经试图打电话给SHOW_DEF（）在类的构造函数？

@EDIT：试试这个

class GeneralForm(TabbedPanel): 
    def __init__(self, **kwargs): 
     super(GeneralForm, self).__init__(**kwargs) 
     shutil.copy('data','data_backup') 
     txt1 = ObjectProperty() 
     txt2 = ObjectProperty() 
     txt_def = ObjectProperty() 
     self.SHOW_DEF() 


    def SHOW_DEF(self): 
     now_date = datetime.date.today() 
     TIME=now_date.weekday() 
     if TIME==0: 
      DDAY='Mon' 
     elif TIME==1: 
      DDAY='Tue' 
     elif TIME==2: 
      DDAY='Wed' 
     elif TIME==3: 
      DDAY='Thu' 
     elif TIME==4: 
      DDAY='Fri' 
     elif TIME==5: 
      DDAY='Sat' 
     elif TIME==6: 
      DDAY='Sun' 

     DATA=GeneralForm.PARSE(self,DDAY) 
     DATA=DATA.split('|||') 
     DATA='\n'.join(DATA) 

     self.txt_def.text=DATA

我所做的是我添加了一个构造函数，它告诉你的对象一旦创建它做什么。你不应该在类中的指定函数或构造函数之外做任何事情，所以我也将你的变量移到了构造函数中，最后调用SHOW_DEF（）。

来源

2015-02-11 00:08:10 Nhor

对不起，我是python新手，所以我不明白你的意思。你能解释还是展示一个小例子？ – 2015-02-11 07:39:49

对不起，我刚刚用exmaple代码编辑了答案:) – Nhor 2015-02-11 13:03:44

如果我这样做，我还有另一个问题。当我在某些选项卡中编辑某些信息并转到第一个选项卡时，我看到 - 文本未更新。它仍处于启动阶段。 – 2015-02-11 14:43:40

事件处理程序TabbedPanel

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