PYQT5设计师尺寸策略在预览中无法正确反映

Question

我在PYQT5设计师中为我的项目制作了一个侧边栏，我注意到很难使侧边栏正确调整大小。理想情况下，侧边栏顶部的按钮应保持相同的尺寸，无论您如何尝试调整大小，都保持在顶部，并且底部的设置按钮应保留在底部。但是，我得到的是，按钮似乎具有固定的位置，如果我尝试使其较小，则按钮只会熄灭，如果我使其更大，则侧边栏将不会随屏幕放大。这是.ui格式的代码示例：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="enabled">
   <bool>true</bool>
  </property>
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>1585</width>
    <height>1072</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QWidget" name="Sidebar" native="true">
    <property name="geometry">
     <rect>
      <x>0</x>
      <y>0</y>
      <width>61</width>
      <height>1071</height>
     </rect>
    </property>
    <property name="sizePolicy">
     <sizepolicy hsizetype="Minimum" vsizetype="Expanding">
      <horstretch>0</horstretch>
      <verstretch>0</verstretch>
     </sizepolicy>
    </property>
    <property name="minimumSize">
     <size>
      <width>61</width>
      <height>1071</height>
     </size>
    </property>
    <property name="maximumSize">
     <size>
      <width>61</width>
      <height>16777215</height>
     </size>
    </property>
    <property name="contextMenuPolicy">
     <enum>Qt::NoContextMenu</enum>
    </property>
    <property name="autoFillBackground">
     <bool>false</bool>
    </property>
    <property name="styleSheet">
     <string notr="true">QWidget {
background-color: rgb(234, 234, 234);}</string>
    </property>
    <widget class="QPushButton" name="TabBtn1">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>0</y>
       <width>61</width>
       <height>61</height>
      </rect>
     </property>
     <property name="mouseTracking">
      <bool>false</bool>
     </property>
     <property name="styleSheet">
      <string notr="true">QPushButton {
    background: rgb(234, 234, 234);
}

QPushButton:hover {
    background: rgb(195, 195, 195);
}</string>
     </property>
     <property name="text">
      <string/>
     </property>
     <property name="icon">
      <iconset>
       <normaloff>../Downloads/machine-learning.png</normaloff>../Downloads/machine-learning.png</iconset>
     </property>
     <property name="iconSize">
      <size>
       <width>40</width>
       <height>40</height>
      </size>
     </property>
     <property name="checkable">
      <bool>false</bool>
     </property>
    </widget>
    <widget class="QPushButton" name="TabBtn2">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>60</y>
       <width>61</width>
       <height>61</height>
      </rect>
     </property>
     <property name="styleSheet">
      <string notr="true">QPushButton {
    background: rgb(234, 234, 234);
}

QPushButton:hover {
    background: rgb(195, 195, 195);
}</string>
     </property>
     <property name="text">
      <string/>
     </property>
     <property name="icon">
      <iconset>
       <normaloff>../Downloads/contact-list.png</normaloff>../Downloads/contact-list.png</iconset>
     </property>
     <property name="iconSize">
      <size>
       <width>40</width>
       <height>40</height>
      </size>
     </property>
    </widget>
    <widget class="QPushButton" name="TabBtn4">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>180</y>
       <width>61</width>
       <height>61</height>
      </rect>
     </property>
     <property name="styleSheet">
      <string notr="true">QPushButton {
    background: rgb(234, 234, 234);
}

QPushButton:hover {
    background: rgb(195, 195, 195);
}</string>
     </property>
     <property name="text">
      <string/>
     </property>
    </widget>
    <widget class="QPushButton" name="TabBtn5">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>240</y>
       <width>61</width>
       <height>61</height>
      </rect>
     </property>
     <property name="styleSheet">
      <string notr="true">QPushButton {
    background: rgb(234, 234, 234);
}

QPushButton:hover {
    background: rgb(195, 195, 195);
}</string>
     </property>
     <property name="text">
      <string/>
     </property>
    </widget>
    <widget class="QPushButton" name="TabBtn5_2">
     <property name="enabled">
      <bool>true</bool>
     </property>
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>1010</y>
       <width>61</width>
       <height>61</height>
      </rect>
     </property>
     <property name="sizePolicy">
      <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
       <horstretch>0</horstretch>
       <verstretch>1</verstretch>
      </sizepolicy>
     </property>
     <property name="styleSheet">
      <string notr="true">QPushButton {
    background: rgb(234, 234, 234);
}

QPushButton:hover {
    background: rgb(195, 195, 195);
}</string>
     </property>
     <property name="text">
      <string/>
     </property>
     <property name="icon">
      <iconset>
       <normaloff>../Downloads/settings (1).png</normaloff>../Downloads/settings (1).png</iconset>
     </property>
     <property name="iconSize">
      <size>
       <width>40</width>
       <height>40</height>
      </size>
     </property>
    </widget>
    <widget class="QPushButton" name="TabBtn3">
     <property name="geometry">
      <rect>
       <x>0</x>
       <y>120</y>
       <width>61</width>
       <height>61</height>
      </rect>
     </property>
     <property name="styleSheet">
      <string notr="true">QPushButton {
    background: rgb(234, 234, 234);
}

QPushButton:hover {
    background: rgb(195, 195, 195);
}</string>
     </property>
     <property name="text">
      <string/>
     </property>
    </widget>
   </widget>
   <widget class="QStackedWidget" name="stackedWidget">
    <property name="geometry">
     <rect>
      <x>60</x>
      <y>0</y>
      <width>1521</width>
      <height>1071</height>
     </rect>
    </property>
    <property name="currentIndex">
     <number>0</number>
    </property>
    <widget class="QWidget" name="page"/>
    <widget class="QWidget" name="page_2"/>
   </widget>
  </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

我尝试使用按钮的尺寸策略以及它所处的小部件的尺寸策略，不幸的是，我看不到任何修复它的东西。

Answer 1

导入OS

类UI（QMainWindow）：

**将此行添加到您的代码

os.environ["QT_AUTO_SCREEN_SCALE_FACTOR"] = "1"