KivyMD MDTextField不接受任何输入

Question

我正在尝试KivyMD构建一个应用程序，所有的东西都运行得很好，直到我遇到了一个问题，我昨天花了一整天的时间才解决它。我正在构建一个应用程序，在其中我可以存储我的训练，并在添加两个MDTextField时遇到问题。首先，它们无法正确对齐，并且一直移动到boxlayout之外，然后经过一些调整（KV文件中的self.minimum_height）之后，它们现在可以单击（您可以看到提示文本发生了变化），但它们不允许任何输入。有人能帮我解释一下为什么MDTextField不起作用吗？我猜这与导致字段被移出boxlayout的同一个问题有关，但我不明白是什么导致了这个问题

以下是修改后的KV：

NavigationLayout:
    id:nav_layout
    MainAppScreenManager:
        id: screen_manager

        AddWorkoutMenu:  

<MainAppScreenManager>

<AddWorkoutMenu>
    name: "addworkoutmenu"
    id: "addworkoutmenu"
    workoutname:workoutname
    setlist:setlist
    BoxLayout:
        orientation: 'vertical'

        MDToolbar:
            title: "Add Workout"
            elevation: 10

        MDTextField:
            id: workoutname
            hint_text: "Workout name"

        ScrollView:
            MDList:
                id: setlist
                Sets:
                    id: workoutboxlist

        MDRoundFlatIconButton:
            id:addset
            icon: "plus"
            text: "Add set"
            on_release:
                root.add_set()

<Sets>
    id:workoutbox
    workoutexerciselist:workoutexerciselist
    addbutton:addbutton
    reps:reps
    rest:rest
    orientation: "vertical"
    md_bg_color: app.theme_cls.primary_color
    radius: 15, 15, 15, 15
    padding: "16dp"
    spacing: "4dp"
    size_hint_y: None
    height: self.minimum_height

    BoxLayout:
        pos_hint: {"center_x": .5, "center_y": 0}
        orientation: "horizontal"
        MDLabel:
            pos_hint: {"center_x": .5, "center_y": .2}
            theme_text_color: "Custom"
            text_color: [1,1,1,1]
            text: root.id


        MDIconButton:
            pos_hint: {"center_x": .5, "center_y": 0}
            icon: "trash-can"
            theme_text_color: "Custom"
            text_color: [1,1,1,1]
            on_release:
                self.parent.parent.remove_set()

    MDBoxLayout:
        size_hint_y: None
        height: self.minimum_height / 4
        pos_hint: {"center_x": .5, "y": 0}
        orientation: "horizontal"
        MDLabel:
            size_hint: (0.15,None)
            pos_hint: {"center_x": .5, "center_y": 0}
            theme_text_color: "Custom"
            text_color: [1,1,1,1]
            text: "Reps:"

        MDTextField:
            id: reps
            size_hint: (0.4,None)
            pos_hint: {"center_x": .5, "center_y": 0.1}
            spacing: "4dp"
            current_hint_text_color: [1,1,1,1]
            line_color_normal: [1,1,1,1]
            hint_text: "# reps"

        MDLabel:
            size_hint: (0.1,None)
            pos_hint: {"center_x": .5, "center_y": 0}
            spacing: "4dp"
            theme_text_color: "Custom"
            text_color: [1,1,1,1]
            text: "Rest:"

        MDTextField:
            id: rest
            size_hint: (0.4,None)
            pos_hint: {"center_x": .5, "center_y": 0.1}
            spacing: "4dp"
            current_hint_text_color: [1,1,1,1]
            line_color_normal: [1,1,1,1]
            hint_text: "in seconds"

    MDList:
        id:workoutexerciselist

    MDRoundFlatIconButton:
        id:addbutton
        icon: "plus"
        theme_text_color: "Custom"
        text_color: [1,1,1,1]
        text: "Add exercise"
        on_release:
            root.open_the_menu()


<WorkoutExerciseListItem>
    id: listitem
    theme_text_color: "Custom"
    text_color: [1,1,1,1]
    DeleteItem:

<DeleteItem>
    name: "deleteicon"
    icon: "close"
    theme_text_color: "Custom"
    text_color: [1,1,1,1]
    on_release:
        root.remove()

下面是修改后的Python：

from kivymd.app import MDApp
from kivymd.theming import ThemableBehavior
from kivymd.toast import toast
from kivymd.uix.list import OneLineIconListItem, MDList, IRightBodyTouch, OneLineRightIconListItem
from kivymd.uix.menu import MDDropdownMenu, RightContent
from kivymd.uix.button import MDIconButton
from kivymd.uix.boxlayout import MDBoxLayout
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.behaviors import ButtonBehavior
from kivy.uix.widget import Widget
from kivy.properties import StringProperty, ObjectProperty, NumericProperty
from kivy.uix.screenmanager import ScreenManager, Screen
from database import DataBaseExercises, DataBaseWorkouts


class AddWorkoutMenu(Screen):
    def __init__(self, **kwargs):
        super(AddWorkoutMenu, self).__init__(**kwargs)


    def add_set(self):
        self.ids.setlist.add_widget(Sets(id = ""))
        for i in self.ids.setlist.children:
            if not hasattr(i, 'menu_1'):
                i.create_self()

    def save(self):
        workout = self.workoutname.text
        sets = self.ids.workoutboxlist._sets
        if workout != "":
            db_workouts.add(workout, sets)
            self.parent.current = "workouts"
            self.clear_all()
            toast("Exercise saved")
        else:
            toast("Please fill in all information")

    def clear_all(self):
        self.workoutname.text = ""
        for i in list(self.setlist.children):
            self.setlist.remove_widget(i)
        Sets._ids = 0
        self.add_set()

    def update_ids(self, removed, total):
        if removed != total:
            for i in self.ids.setlist.children:
                current_number = int(i.id[-1])
                if current_number > removed:
                    current_number -= 1
                    i.id = "Set " + str(current_number)


class Sets(MDBoxLayout):
    _ids = 0
    _sets = {}

    def __init__(self, **kwargs):
        super(Sets, self).__init__(**kwargs)
        Sets._ids += 1
        self.id = "Set " + str(Sets._ids)
        self._sets[self.id] = {}
        self._sets[self.id]["Exercise"] = []
        self._sets[self.id]["Reps"] = []
        self._sets[self.id]["Rest"] = []

    def add_selection(self, name):
        self.workoutexerciselist.add_widget(WorkoutExerciseListItem(text=name))
        self._sets[self.id]["Exercise"].append(name)
        print(self._sets[self.id]["Exercise"])
        self.update_height()

    def update_height(self):
        if self.workoutexerciselist.height == 16.0:
            self.workoutexerciselist.height = 0.0
        self.height = self.minimum_height + self.workoutexerciselist.height

    def create_menu(self, text, instance):
        menu_items = [{"text": i} for i in text]
        return MDDropdownMenu(position = "auto", caller=instance, items=menu_items, width_mult=5, callback=self.set_item)

    def create_self(self):
        exerciselist = db_exercise.get_all()
        self.menu_1 = self.create_menu(exerciselist, self.addbutton)

    def update_self(self, value):
        new_list = []
        new_list.append(value)
        for i in self.menu_1.items:
            for u in i.values():
                new_list.append(u)
        self.menu_1 = self.create_menu(new_list, self.addbutton)

    def set_item(self, instance):
        self.menu_1.on_dismiss()
        self.add_selection(instance.text)
        self.remove_item(instance.text)

    def remove_item(self, item):
        new_list = []
        for i in self.menu_1.items:
            for u in i.values():
                if u != item:
                    new_list.append(u)
        self.menu_1 = self.create_menu(new_list, self.addbutton)

    def open_the_menu(self):
        self.menu_1.open()

    def remove_set(self):
        number = int(self.id[-1])
        self._sets.pop("Set "+str(number))
        self.update_set(number)
        self.id = "Set 0"
        self.parent.parent.parent.parent.parent.update_ids(number, Sets._ids)
        Sets._ids -= 1
        self.parent.remove_widget(self)

    def update_set(self, number):
        for i in range(number, Sets._ids):
            self._sets["Set " + str(i)] = self._sets["Set " + str(i+1)]
            self._sets.pop("Set " + str(i + 1))

    def save_reps_and_rest(self):
        self._sets[self.id]["Reps"] = self.reps
        self._sets[self.id]["Rest"] = self.rest



class WorkoutExerciseListItem(OneLineRightIconListItem):
    pass


class DeleteItem(IRightBodyTouch, MDIconButton):
    pass

class MainAppScreenManager(ScreenManager):
    pass

class MainApp(MDApp):
    pass


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

Answer 1

不确定发生了什么，但添加：

        color_mode: 'custom'
        line_color_focus: 1, 1, 1, 1

对每个人来说MDTextField似乎都是可行的