android-如何使用kivy从TextInput写入并保存到文本文件

概述我想在TextInput小部件中输入文本以将其保存到文本文件中.请有人给我展示一个示例,该示例如何获取在TextInput小部件中输入的值以将其保存到文本文件中.fromkivy.appimportAppfromkivy.langimportBuilderfromkivy.uix.screenmanagerimportScreenManager,Screenfrom

我想在Textinput小部件中输入文本以将其保存到文本文件中.请有人给我展示一个示例,该示例如何获取在Textinput小部件中输入的值以将其保存到文本文件中.

from kivy.app import Appfrom kivy.lang import Builderfrom kivy.uix.screenmanager import ScreenManager, Screenfrom kivy.uix.label import Labelfrom kivy.uix.textinput import Textinputimport os

此方法是尝试保存到文本文件中的尝试,但是没有用

def save(self,nam):    fob = open('c:/test.txt','w')    write =    fob.write(str(name))Builder.load_string('''<MenuScreen>:    BoxLayout:        button:            text: 'Add New Staff'            on_press: root.manager.current = 'add_staff'        button:            text: 'VIEw Staff Profile'        button:            text: 'Salary report'<Add_new_staff>:    nam: str(name_input)    job: job_input    GrIDLayout:        cols: 2         Label:            text: 'name'        Textinput:            ID: name_input            multiline: False        Label:            text: 'Job'        Textinput:            ID: job_input        Label:            text: 'Salary'        Textinput:        Label:            text: 'Date of Joining'        Textinput:        button:            text: 'Back to menu'            on_press: root.manager.current = 'menu'        button:            text: 'Save'            on_press: app.save(self,nam)''')class MenuScreen(Screen):    passclass Add_new_staff(Screen):    passsm = ScreenManager()sm.add_Widget(MenuScreen(name='menu'))sm.add_Widget(Add_new_staff(name='add_staff'))class TestApp(App):    def build(self):        return smif __name__ == '__main__':    TestApp().run()

解决方法:

这是您的示例工作.

from kivy.app import Appfrom kivy.lang import Builderfrom kivy.uix.screenmanager import ScreenManager, Screenfrom kivy.uix.label import Labelfrom kivy.uix.textinput import TextinputBuilder.load_string('''<MenuScreen>:    BoxLayout:        button:            text: 'Add New Staff'            on_press: root.manager.current = 'add_staff'        button:            text: 'VIEw Staff Profile'        button:            text: 'Salary report'<Add_new_staff>:    nam: str(name_input)    job: job_input    GrIDLayout:        cols: 2        Label:            text: 'name'        Textinput:            ID: name_input            multiline: False        Label:            text: 'Job'        Textinput:            ID: job_input        Label:            text: 'Salary'        Textinput:        Label:            text: 'Date of Joining'        Textinput:        button:            text: 'Back to menu'            on_press: root.manager.current = 'menu'        button:            text: 'Save'            on_press: app.save(name_input.text, job_input.text)''')class MenuScreen(Screen):    passclass Add_new_staff(Screen):    passsm = ScreenManager()sm.add_Widget(MenuScreen(name='menu'))sm.add_Widget(Add_new_staff(name='add_staff'))class TestApp(App):    def build(self):        return sm    def save(self, name, job):        fob = open('c:/test.txt','w')        fob.write(name + "\n")        fob.write(job)        fob.close()    if __name__ == '__main__':    TestApp().run()

但是有几点建议.
 1.而是使用数据库(sqlite3？)存储此类数据.它将更有效地扩展,在数据变大时为您提供更快的查找.
 2.将您的数据存储在所有用户的“读/写”位置. Kivy为此提供了便利功能.

http://kivy.org/docs/api-kivy.app.html?highlight=data_dir#kivy.app.App.user_data_dir

希望有帮助吗？

干杯

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