如何在像Ä的Kivy上显示languange特定字符？

Question

我得到的是空框字符，而不是Ä字符。如何使它们显示在我的奇异应用程序上。我读了一些文章，建议将字体类型更改为支持这些字符的字体。我尝试了几次，但似乎并没有解决。

尝试了非常基本的Calibri字体，并且还随机选择了据说适合我的languange（AlegreyaSansSC）的字体

Python文件：

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.popup import Popup
from kivy.uix.button import Button
from kivy.uix.screenmanager import Screen, ScreenManager
from kivy.properties import StringProperty, BooleanProperty


class Row(BoxLayout):
    x1 = StringProperty('')
    x2 = StringProperty('')
    x3 = BooleanProperty(False)

    def __init__(self, x1, x2, x3, **kwargs):
        super(Row, self).__init__(**kwargs)
        self.x1 = x1
        self.x2 = x2
        self.x3 = x3

class MyPopup(Popup):
    pass


class MainScreen(Screen):
    pass

class SecondScreen(Screen):
    def fire_popup(self):
        pops = MyPopup()
        pops.open()

class ScreenManagement(ScreenManager):
    def changescreen(self, value):

        try:
            if value !='main':
                self.current = value
        except:
            print('No Screen named'+ value)




class testiApp(App):
    def build(self):
        self.title = 'Hello'

    def add_more(self, x1, x2, x3):
        addbutton = self.root.get_screen('Page2').ids.empty
        addbutton.add_widget(Row(x1, x2, x3))

    def remove(self):
        container = self.root.get_screen('Page2').ids.empty
        if len(container.children) > 0:
            container.remove_widget(container.children[0])

testiApp().run()

KV。文件：

<MyPopup>:
    id:pop
    size_hint: .4, .4
    auto_dismiss: False
    title: 'XXX!!'
    BoxLayout:
        orientation:'vertical'
        BoxLayout:
            orientation:'horizontal'
            Label:
                text:'X1'
            TextInput:
                id: X1

            Label:
                text:'X2'
            TextInput:
                id:X2

            CheckBox:
                id:X3

        BoxLayout:
            orientation:'horizontal'
            Button:
                text:'Lisää'
                on_release: app.add_more(X1.text, X2.text, X3.active)
            Button:
                text: 'Close'
                on_press: pop.dismiss()

<Row>:
    x1:''
    x2:''
    x3:False

    Label:
        text: root.x1
    Label:
        text: root.x2
    CheckBox:
        active: root.x3


ScreenManagement:
    MainScreen:
        name:'Main'
    SecondScreen:
        name:'Page2'



<MainScreen>:
    name:'Main'
    BoxLayout:
        Button:
            text:'Next Page'
            on_release: app.root.current ='Page2'



<SecondScreen>:
    name:'Page2'


    BoxLayout:
        orientation:'vertical'
        BoxLayout:
            orientation:'vertical'
            Label:
                text:'Popup Test'
            ScrollView:
                bar_width: 5
                bar_color: 1,0,0,1 #red
                bar_inactive_color: 0,0,1,1 #blue
                effect_cls: 'ScrollEffect'
                scroll_type:['bars','content']
                GridLayout:
                    orientation: "vertical"
                    size_hint_y: None
                    height: self.minimum_height
                    row_default_height: 60
                    cols:1
                    id:empty
            BoxLayout:
                Button:
                    text:'Open Popup'
                    on_press: root.fire_popup()

                Button:
                    text:'Add'
                    on_release: app.add_more()

                Button:
                    text:'remove'
                    on_release: app.remove()

Answer 1

问题

  

似乎只有在我使用单独的py时，才会出现此问题。和kv文件。

答案

我不认为问题是由单独的py和kv文件引起的。下面的示例正确显示了字符。

main.py

from kivy.base import runTouchApp
from kivy.lang import Builder


runTouchApp(Builder.load_file("main.kv"))

main.kv

GridLayout:
    cols: 2
    Label:
        text: 'Alegreya Sans SC font'
    Label:
        text: 'Roboto font (Default)'
    Label:
        text: 'Ä'
        font_size: 56
        font_name: '/home/iam/share/fonts/Alegreya_Sans_SC/AlegreyaSansSC-Medium.ttf'
    Label:
        text: 'Ä'
        font_size: 56

问题

  

我得到的是空框字符，而不是Ä字符。怎么做   它们显示在我的kivy应用程序上。

解决方案

• 从Google字体下载并提取Alegreya Sans SC字体。该字体在Open Font License
下
• 添加属性font_name:，并提供提取文件夹的路径以及字体类型（例如AlegreyaSansSC-Medium.ttf）。

示例

以下示例说明了使用属性font_name显示字符Ä来使用不同的字体。 Kivy使用的默认字体是Roboto。

main-kv.py

from kivy.base import runTouchApp
from kivy.lang import Builder


runTouchApp(Builder.load_string("""
GridLayout:
    cols: 2
    Label:
        text: 'Alegreya Sans SC font'
    Label:
        text: 'Roboto font (Default)'
    Label:
        text: 'Ä'
        font_size: 56
        font_name: '/home/iam/share/fonts/Alegreya_Sans_SC/AlegreyaSansSC-Medium.ttf'
    Label:
        text: 'Ä'
        font_size: 56
"""))

输出