保存输入后重置 kivy 文本输入+任何其他评论

Question

我目前正在制作一个程序，该程序会记录带有与工作相关的一些不同事物的串起球拍。保存信息后，我无法重置 kivy 文本输入。该代码可能很难阅读，因为它是我在过去几天里弄乱的东西的轻微拼凑。如果您能帮助我了解如何重置文本输入和任何其他改进将不胜感激 - 克里斯 - 新手

            import kivy
            import gspread
            from kivy.app import App
            from kivy.uix.label import Label
            from kivy.uix.textinput import TextInput
            from kivy.core.window import Window
            from kivy.uix.gridlayout import GridLayout
            from kivy.core.window import Window
            from kivy.uix.button import Button
            from kivy.uix.screenmanager import ScreenManager , Screen
            from oauth2client.service_account import ServiceAccountCredentials

            list = []

            Client = ''
            Racquet = ''
            String = ''
            Tension = ''

            scope = ['https://www.googleapis.com/auth/drive']
            creds = ServiceAccountCredentials.from_json_keyfile_name('client_secret.json', scope)
            client = gspread.authorize(creds)

            sheet = client.open("Stringing Log MAIN").sheet1

            def clients(instance, value):
                print(value)
                global Client
                Client = str(value[8:])
                global list
                return

            def racquets(instance, value):
                print(value)
                global Racquet
                Racquet = str(value[9:])
                global list
                return

            def strings(instance, value):
                print(value)
                global String
                String = str(value[8:])
                global list
                return

            def tensions(instance, value):
                print(value)
                global Tension
                Tension = str(value[9:])
                global list
                return

            clienttxt = open("Client", "w")
            racquettxt = open("Racquet", "w")
            stringtxt = open("String", "w")
            tensiontxt = open("Tension", "w")

            def Test(x):
                global sheet
                list.insert(0, Client)
                list.insert(1, Racquet)
                list.insert(2, String)
                list.insert(3, Tension)
                sheet.insert_row(list, 1)
                list.clear()
                return

            class MyGrid(GridLayout):
                def __init__(self, **kwargs):

                    super(MyGrid, self).__init__(**kwargs)
                    self.cols = 1


                    client = TextInput(text = "Client: ", write_tab = False, multiline=False)
                    client.bind(text=clients)
                    self.add_widget(client)

                    racquet = TextInput(text= "Racquet: ", write_tab = False, multiline=False)
                    racquet.bind(text=racquets)
                    self.add_widget(racquet)

                    string = TextInput(text= "String: ", write_tab = False, multiline=False)
                    string.bind(text=strings)
                    self.add_widget(string)

                    tension = TextInput(text= "Tension: ", write_tab = False, multiline=False)
                    tension.bind(text=tensions)
                    self.add_widget(tension)

                    button1 = Button(text="Submit")
                    self.add_widget(button1)
                    button1.bind(on_press=Test)



            class StringingApp(App):
                def build(self):
                    return MyGrid()


            if __name__ == "__main__":
                StringingApp().run()

Answer 1

您可以在__init__() 方法中保存对每个TextInput 的引用，例如：

self.client = TextInput(text = "Client: ", write_tab = False, multiline=False)

然后，将 Test 方法移到 MyGrid 类中：

        def Test(self, x):
            global sheet
            list.insert(0, Client)
            list.insert(1, Racquet)
            list.insert(2, String)
            list.insert(3, Tension)
            sheet.insert_row(list, 1)
            list.clear()

            # clear the TextInput widgets here
            self.client.text = ''
            return

您的Button 绑定变为：

button1.bind(on_press=self.Test)

所以这是我建议的更改后的整个 MyGrid 类：

class MyGrid(GridLayout):
    def __init__(self, **kwargs):
        super(MyGrid, self).__init__(**kwargs)
        self.cols = 1

        # save a reference to the client TextInput
        self.client = TextInput(text="Client: ", write_tab=False, multiline=False)
        self.client.bind(text=clients)
        self.add_widget(self.client)

        racquet = TextInput(text="Racquet: ", write_tab=False, multiline=False)
        racquet.bind(text=racquets)
        self.add_widget(racquet)

        string = TextInput(text="String: ", write_tab=False, multiline=False)
        string.bind(text=strings)
        self.add_widget(string)

        tension = TextInput(text="Tension: ", write_tab=False, multiline=False)
        tension.bind(text=tensions)
        self.add_widget(tension)

        button1 = Button(text="Submit")
        self.add_widget(button1)
        button1.bind(on_press=self.Test)   # bind to Test() method below

    def Test(self, x):
        global sheet
        list.insert(0, Client)
        list.insert(1, Racquet)
        list.insert(2, String)
        list.insert(3, Tension)
        sheet.insert_row(list, 1)
        list.clear()

        # clear the TextInput widgets here
        self.client.text = ''   # or set it to anything you want, handle the other TextInputs similarly
        return