Question

我正在使用kivy的应用程序工作，我遇到涉及GridLayout的问题。我有一个不同行的屏幕，我希望最后一行的按钮始终具有相同的height（屏幕高度的11,1％）。我试图修改按钮中的属性高度，但无法正常工作。使用size_hint_y工作正常，但事实是我想使用height，因为屏幕不会总是具有相同的行数（响应并且取决于之前屏幕的选择）。我在这里附上我通过命令Window.height/9计算的属性高度所做的代码：

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


class LoginScreen(GridLayout):
    def __init__(self,**kwargs):
        super(LoginScreen, self).__init__(**kwargs)
        self.cols=2
        self.add_widget(Label(text='Subject'))
        self.add_widget(Label(text=''))
        self.add_widget(Label(text='1'))
        self.add_widget(TextInput(multiline=False))
        self.add_widget(Label(text='2'))
        self.add_widget(TextInput(multiline=False))
        self.add_widget(Label(text='3'))
        self.add_widget(TextInput(multiline=False))
        self.add_widget(Label(text='4'))
        self.add_widget(TextInput(multiline=False))
        b1=Button(text='Exit',background_color=[0,1,0,1],height=int(Window.height)/9.0) #doesn't work properly 
        self.add_widget(b1)
        b2=Button(text='Run',background_color=[0,1,0,1],height=int(Window.height)/9.0) #doesn't work properly
        self.add_widget(b2)
        b1.bind(on_press=exit) 




class SimpleKivy(App):
    def build(self):
        return LoginScreen()


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

我知道可以用更简单的方式用kivy语言来完成，但对于我的应用程序，这样做更好。如果有人知道如何解决这个问题，我将非常感激。

Answer 1

如果您希望网格/框布局中的窗口小部件具有固定大小，则应首先将其The arraylist contains the following elements: [aaa, bbb, ccc, ddd] List of the other: [aaa] List of the other: [bbb]设置为size_hint。并且总是在这些任务中使用kivy lang - 没有例外。

None

Answer 2

试试这个

class LoginScreen(GridLayout):
def __init__(self,**kwargs):
    super(LoginScreen, self).__init__(**kwargs)
    self.cols=2
    self.add_widget(Label(text='Subject'))
    self.add_widget(Label(text=''))
    self.add_widget(Label(text='1'))
    self.add_widget(TextInput(multiline=False))
    self.add_widget(Label(text='2'))
    self.add_widget(TextInput(multiline=False))
    self.add_widget(Label(text='3'))
    self.add_widget(TextInput(multiline=False))
    self.add_widget(Label(text='4'))
    self.add_widget(TextInput(multiline=False))
    b1=Button(text='Exit',background_color=[0,1,0,1],size_hint_y=None, height=int(Window.height)/8.9)  
    self.add_widget(b1)
    b2=Button(text='Run',background_color=[0,1,0,1],size_hint_y=None, height=int(Window.height)/8.9)
    self.add_widget(b2)
    b1.bind(on_press=exit)

编辑将其更改为11％。

这里有一个按钮保持11％以响应窗口大小，每当窗口调整大小时重绘网格层（通过绑定到＆＃39; on_resize＆＃39;）。

from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
from kivy.uix.button import Button
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.core.window import Window
from kivy.uix.floatlayout import FloatLayout


class LoginScreen(GridLayout):


def __init__(self,**kwargs):
    super(LoginScreen, self).__init__(**kwargs)

    #init and add grid layer
    self.cols=2
    self.layout = GridLayout(cols=self.cols)
    self.add_widget(self.layout)
    #function to set the buttons based on the current window size
    self.set_content(Window.width, Window.height)
    #bind above function to get called whenever the window resizes
    Window.bind(on_resize=self.set_content)


def set_content(self, width, height, *args):
    #first remove the old sized grid layer
    self.remove_widget(self.layout)
    #now build a new grid layer with the current size
    self.layout =GridLayout(cols=self.cols)
    self.layout.add_widget(Label(text='Subject'))
    self.layout.add_widget(Label(text=''))
    self.layout.add_widget(Label(text='1'))
    self.layout.add_widget(TextInput(multiline=False))
    self.layout.add_widget(Label(text='2'))
    self.layout.add_widget(TextInput(multiline=False))
    self.layout.add_widget(Label(text='3'))
    self.layout.add_widget(TextInput(multiline=False))
    self.layout.add_widget(Label(text='4'))
    self.layout.add_widget(TextInput(multiline=False))
    b1=Button(text='Exit',background_color=[0,1,0,1],size_hint_y=None, height=int(Window.height)/8.9)  
    self.layout.add_widget(b1)
    b2=Button(text='Run',background_color=[0,1,0,1],size_hint_y=None, height=int(Window.height)/8.9)
    self.layout.add_widget(b2)
    b1.bind(on_press=exit) 
    #add the newly sized layer
    self.add_widget(self.layout)


class SimpleKivy(App):
def build(self):
    return LoginScreen()


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

如何在Kivy Python中为GridLayout的某些按钮设置高度？

2 个答案: