問題描述
我對 Kivy 很陌生(昨天開始)，我正在嘗試創建一個足夠簡單的應用程序，該應用程序具有用于計算體積的多個高度和面積值的輸入框.我找不到任何這樣做的工作方法.到目前為止，我得到的只有這個:
I'm quite new to Kivy (started yesterday) and am trying to create a simple enough app that has input boxes for several values of height and area to calculate volumes. I cant find any working methods of doing this. So far all I have got is this:
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
Builder.load_string("""
<MenuScreen>:
FloatLayout:
Label:
text: 'Please Select an Area to Work With:'
pos: 230, 490
size_hint: .15, .05
font_size: 23
Button:
text: "A"
pos: 230, 100
size_hint: .4,.1
font_size: 23
on_press: root.manager.current = 'settings'
Button:
text: "B"
pos: 230, 210
size_hint: .4,.1
font_size: 23
on_press: root.manager.current = 'settings'
Button:
text: "C"
pos: 230, 320
size_hint: .4,.1
font_size: 23
on_press: root.manager.current = 'settings'
Button:
text: "D"
pos: 230, 420
size_hint: .4,.1
font_size: 23
on_press: root.manager.current = 'settings'
<SettingsScreen>:
GridLayout:
Label:
text: 'Room 1'
pos: 6, 460
size_hint: .15, .05
font_size: 23
Label:
text: 'Room 2'
pos: 6, 420
size_hint: .15, .05
font_size: 23
Label:
text: 'Room 3'
pos: 6, 380
size_hint: .15, .05
font_size: 23
Label:
text: 'Room 4'
pos: 6, 340
size_hint: .15, .05
font_size: 23
Label:
text: 'Room 5'
pos: 6, 300
size_hint: .15, .05
font_size: 23
Label:
text: 'Room 6'
pos: 6, 260
size_hint: .15, .05
font_size: 23
TextInput:
text1: "0"
multiline: False
pos: 200,420
font_size: 23
on_text: viewer.text = self.text1
size_hint: .001, .001
TextInput:
text2: "0"
multiline: False
pos: 200, 420
font_size: 23
on_text: viewer.text = self.text2
size_hint: .001, .001
TextInput:
text3: "0"
multiline: False
pos: 200,380
font_size: 23
on_text: viewer.text = self.text3
size_hint: .001, .001
TextInput:
text4: "0"
multiline: False
pos: 200,340
font_size: 23
on_text: viewer.text = self.text4
size_hint: .001, .001
TextInput:
text5: "0"
multiline: False
pos: 200,300
font_size: 23
on_text: viewer.text = self.text5
size_hint: .001, .001
TextInput:
text6: "0"
multiline: False
pos: 200,240
font_size: 23
on_text: viewer.text = self.text6
size_hint: .001, .001
""")
# Declare both screen
class MenuScreen(Screen):
pass
class SettingsScreen(Screen):
pass
# Create the screen manager
sm = ScreenManager()
sm.add_widget(MenuScreen(name='menu'))
sm.add_widget(SettingsScreen(name='settings'))
class TestApp(App):
def build(self):
return sm
if __name__ == '__main__':
TestApp().run()
我計劃為每個按下的按鈕設置唯一的第二頁，但希望有任何幫助.
Im planning to have the second page unique for each button pressed, but want Any help would be appreciated.
推薦答案
希望我能理解你的問題.您正在尋求執行此操作的方法.簡單的答案是您擁有整個 Python 來執行您想要的所有操作.Kivy 是一個提供大量組件來設計 GUI 的庫.它還為您提供了一種由 Builder.load_string() 解析的語言.這是一個可能或多或少是您正在尋找的示例.它有點像第一個屏幕上的計算器.第二個屏幕是空的，您可以使用底部按鈕在它們之間移動.
I hope I got to understand your question. You are asking for methods to do this. The plain answer is that you have the whole Python to do all the operations you want. Kivy is a library that provides a lot of components to design GUI. It also provides you with a language that is parsed by the Builder.load_string(). Here is an example that might be more or less what you are looking for. It is sort of a calculator on the first screen. The second screen is empty and you can move between them with the bottom buttons.
第一個屏幕上的計算器有兩個 InputTexts 和兩個按鈕(Sum 和 Product).Sum 按鈕直接在 kivy 語言上實現了求和.Product Button 調用根中的一個方法(Calc 的一個實例).該方法本身并不存在.我在 kivy 部分下面的 python 代碼中創建.對于我所說的代碼，有一些注釋.
The calculator on the first screen has two InputTexts and two buttons (Sum and Product). The Sum Button has the implementation of a sum directly on the kivy language. The Product Button calls a method in the root (an instance of Calc). The method doesn't exist by itself. I created in the python code below the kivy section. There is some comments on the code for what I am saying.
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.floatlayout import FloatLayout
Builder.load_string("""
<Calc>:
# This are attributes of the class Calc now
a: _a
b: _b
result: _result
AnchorLayout:
anchor_x: 'center'
anchor_y: 'top'
ScreenManager:
size_hint: 1, .9
id: _screen_manager
Screen:
name: 'screen1'
GridLayout:
cols:1
TextInput:
id: _a
text: '3'
TextInput:
id: _b
text: '5'
Label:
id: _result
Button:
text: 'sum'
# You can do the opertion directly
on_press: _result.text = str(int(_a.text) + int(_b.text))
Button:
text: 'product'
# Or you can call a method from the root class (instance of calc)
on_press: root.product(*args)
Screen:
name: 'screen2'
Label:
text: 'The second screen'
AnchorLayout:
anchor_x: 'center'
anchor_y: 'bottom'
BoxLayout:
orientation: 'horizontal'
size_hint: 1, .1
Button:
text: 'Go to Screen 1'
on_press: _screen_manager.current = 'screen1'
Button:
text: 'Go to Screen 2'
on_press: _screen_manager.current = 'screen2'""")
class Calc(FloatLayout):
# define the multiplication of a function
def product(self, instance):
# self.result, self.a and self.b where defined explicitely in the kv
self.result.text = str(int(self.a.text) * int(self.b.text))
class TestApp(App):
def build(self):
return Calc()
if __name__ == '__main__':
TestApp().run()
這篇關于用于簡單計算的 Kivy 輸入值的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！