Python 文本溢出了Kivy的视区

这一点已经在另一个帖子中得到了回答: Wrapping the text of a Kivy Label个

您需要使用text_size来换行文本.请参阅https://kivy.org/doc/stable/api-kivy.uix.label.html#中的文档

下面是一个使用KV字符串和一个基本应用程序构建的示例.如果运行此命令，您应该会看到文本换行. text_size: self.width, None设置宽度以适应应用程序窗口的宽度，不设置高度.

kv_string = '''
BoxLayout:
    orientation: 'horizontal'
    padding: 10
    spacing: 10

    Label:
        id: content_label
        pos_hint: {"center_x":0.5, "center_y":0.5}
        font_size: '16'

        # generate sample text
        text: 'lorem ipsum '*1000
        # set text to adapt to the width of the window
        text_size: self.width, None
        
'''
 
from kivy.lang import Builder
from kivy.app import App

class MainApp(App):
    def build(self):
        return Builder.load_string(kv_string)
        
if __name__ == '__main__': 
    MainApp().run()

但是，这只会水平换行文本，但仍会垂直剪裁文本.如果您希望在全文垂直溢出时能够查看和滚动全文，则需要将标签放入ScrollView.见https://kivy.org/doc/stable/api-kivy.uix.scrollview.html

在该示例的基础上，下面是生成的换行文本也垂直滚动的情况:

kv_string = '''
BoxLayout:
    orientation: 'horizontal'
    padding: 10
    spacing: 10
    
    ScrollView:
        # sets scrolling only vertically
        do_scroll_x: False
        do_scroll_y: True
        
        Label:
            id: content_label
            pos_hint: {"center_x":0.5, "center_y":0.5}
            font_size: '16'
            # resets the height of the Label
            size_hint_y: None
            # sets the height of the Label to the height of the texture
            height: self.texture_size[1]
            text: 'lorem ipsum '*1000
            text_size: self.width, None
        
'''


from kivy.lang import Builder
from kivy.app import App

class MainApp(App):
    def build(self):
        return Builder.load_string(kv_string)
    
if __name__ == '__main__': 
    MainApp().run()