使用kivy更改Textinput大小

Question

我在使用kivy时遇到了一些麻烦。 我的目标是在文本输入框旁边创建标签，以便人们记住他们应该输入的内容。我希望能够调整文本输入框的大小，或者如果有更好的方法，请告诉我！

<Phone>:
result: _result
h: _h
w: _w


AnchorLayout:
    anchor_x: 'center'
    anchor_y: 'top'

    ScreenManager:
        size_hint: 1, .9
        id: _screen_manager
        Screen:
            name: 'home'
            canvas.before:
                Rectangle:
                    pos: self.pos
                    size: self.size
                    source: "/home/aaron/Desktop/main.png"
            Label:
                markup: True
                text: '[size=50][color=ff3333]Welcome to [color=ff3333]Diabetes Manager[/color][/size]'
        Screen:
            name: 'menu'
            GridLayout: 
                cols: 2
                padding: 50
                canvas.before:
                    Rectangle:
                        pos: self.pos
                        size: self.size
                        source: "/home/aaron/Desktop/main.png"

                Button:
                    text: 'My Profile'
                    on_press: _screen_manager.current = 'profile' 
                Button:
                    text: 'History'
                    on_press: _screen_manager.current = 'history'     

                Button:
                    text: 'New Entry'
                    on_press: _screen_manager.current = 'new_entry' 
                Button:
                    text: 'Graph'
                    on_press: _screen_manager.current = 'graph' 
                Button:
                    text: 'Diet'
                    on_press: _screen_manager.current = 'diet' 
                Button:
                    text: 'Settings'
                    on_press: _screen_manager.current = 'settings' 

        Screen:
            name: 'profile'
            GridLayout: 
                rows: 1
                BoxLayout:
                    Label:
                        text: 'Name'
                    TextInput:
                        id: _name
                        hint_text: 'Name'

                    Label:  
                        text: 'Gender'
                    TextInput:
                        id: _gender1
                        hint_text: 'Gender'

                    Label:
                        text: 'Type of Diabetes'
                    TextInput:
                        id: _type
                        hint_text: 'Type of Diabetes'

                    Label:
                        text: 'Height(in)'
                    TextInput:
                        id: _h
                        hint_text: 'Height in inches'

                    Label:
                        text: 'Weight(lb)'
                    TextInput:
                        id: _w
                        hint_text: 'Weight in pounds'

                    Label:
                        id:_result
                        text: 'BMI'
                    Button:
                        text: 'Calculate BMI'
                        on_press: root.product(*args)

                    Label:
                        text: 'List of Medications'
                    TextInput:
                        id: _meds
                        hint_text: 'List of Medications'

                    Label:
                        text: 'Insulin Times'
                    TextInput:
                        id: _times
                        hint_text: 'Please Enter Times to Take Insulin'


        Screen:
            name: 'history'
            GridLayout: 
                cols:1

        Screen:
            name: 'new_entry'
            GridLayout:
                cols:1
                TextInput:
                    id: _time
                    text: 'Please Enter The Current Time'
                TextInput:
                    id: _glucose_reading
                    text: 'Please Enter Your Current Blood Sugar'
                TextInput:
                    id: _food
                    text: 'Please Enter Amount of Carbs for The Meal'
                TextInput:
                    id: _meds_taken
                    text: 'Please Enter Any Medications Taken'


        Screen:
            name: 'graph'
            GridLayout: 
                cols: 3
                padding: 50
            Label: 
                markup: True
                text: '[size=24][color=dd88ff]Your Graph[/color][/size]'

        Screen:
            name: 'diet'
            GridLayout: 
                cols: 3
                padding: 50
            Label: 
                markup: True
                text: '[size=24][color=dd88ff]Reccomended Diet[/color][/size]'


        Screen:
            name: 'settings'
            GridLayout: 
                cols: 3
                padding: 50
            Label: 
                markup: True
                text: '[size=24][color=dd88ff]Settings[/color][/size]'


AnchorLayout:
    anchor_x: 'center'
    anchor_y: 'bottom'
    BoxLayout:
        orientation: 'horizontal'
        size_hint: 1, .1
        Button:
            id: btnExit
            text: 'Exit'
            on_press: app.stop() 
        Button:
            text: 'Menu'
            on_press: _screen_manager.current = 'menu'

Answer 1

您需要在GridLayout为每个TextInput使用另一个布局，这将创建一个内部包含两个小部件的小部件：Label和TextInput。 结果将如下所示：

Screen:
    name: 'profile'
    GridLayout: 
        cols: 1
        BoxLayout: ## Box 1
            Label:
                text: 'Name Please'                    
            TextInput:
                id: _name
        BoxLayout: ## Box 2
            Label:
                text: 'Another Name Please'                    
            TextInput:
                id: _name

使用size_hint可以在BoxLayout甚至BoxLayout本身内设置Label或TextInput的大小。

或有另一种方法-hint_text将在您的TextInput为空时显示在其中。

例：

from kivy.lang import Builder
from kivy.base import runTouchApp
from kivy.uix.scrollview import ScrollView
Builder.load_string('''
<Test>:
    GridLayout: 
        cols: 1
        BoxLayout: ## here is one Box
            Label:
                text: 'Name Please'                    
            TextInput:
        BoxLayout: ## here is another Box
            Label:
                text: 'Name Please'                    
            TextInput:
''')
class Test(ScrollView):pass
runTouchApp(Test())