pyqt |由对象生成的GUI不会显示

Question

我的“程序”的简要说明。当我单击主窗口中的菜单条目时，将打开一个弹出窗口以获取用户输入，触发子帧显示在主窗口中（此窗口直到那时一直处于隐藏状态）。该子帧具有一个按钮，该按钮应创建嵌入在子帧中的另一个帧（另一类的一部分）。问题是单击按钮时它不会显示。我一直在寻找解决方案，但找不到。 预先感谢！

import sys
from PyQt5.Qt import *
from PyQt5.uic import *

class Main_fr(QMainWindow):

    def __init__(self):
        super().__init__()

        self.mainwin = loadUi("Main.ui", self)
        self.menu_crnewwin.triggered.connect(self.inputwindow)

        self.subWin = loadUi("subwin_Fr.ui", self.mainwin.mainFrame)
        self.subWin.createObj.clicked.connect(self.obj_fr)

        self.subWin.hide()
        self.mainwin.show()


    def inputwindow(self):
        text, ok = QInputDialog.getText(self, "Input Window", "Some input:")
        if ok:
            self.subWin_fr()


    def subWin_fr(self):
        self.subWin.show()

    def obj_fr(self):
        self.w = Some_obj(self.subWin.objframe, "userentry").gui()



class Some_obj():
    def __init__(self, master, userinput):
        self.master = master
        self.userinput = userinput
        self.iterable = loadUi("subsubWin.ui", self.master)
        self.iterable.hide()


    def gui(self):
        self.iterable.show()


def run():    
    app = QApplication(sys.argv)
    GUI = Main_fr()
    sys.exit(app.exec_())

run()

主文件：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>df</class>
 <widget class="QMainWindow" name="df">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>584</width>
    <height>578</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Fruchtfolge</string>
  </property>
  <widget class="QWidget" name="mainFrame"/>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>584</width>
     <height>25</height>
    </rect>
   </property>
   <widget class="QMenu" name="menuFile">
    <property name="title">
     <string>File</string>
    </property>
    <addaction name="menu_crnewwin"/>
    <addaction name="open"/>
    <addaction name="close"/>
    <addaction name="separator"/>
    <addaction name="close_prog"/>
   </widget>
   <addaction name="menuFile"/>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
  <widget class="QToolBar" name="toolBar">
   <property name="windowTitle">
    <string>toolBar</string>
   </property>
   <attribute name="toolBarArea">
    <enum>TopToolBarArea</enum>
   </attribute>
   <attribute name="toolBarBreak">
    <bool>false</bool>
   </attribute>
  </widget>
  <action name="menu_crnewwin">
   <property name="text">
    <string>New</string>
   </property>
  </action>
  <action name="open">
   <property name="text">
    <string>Open</string>
   </property>
  </action>
  <action name="close">
   <property name="text">
    <string>Close</string>
   </property>
  </action>
  <action name="close_prog">
   <property name="text">
    <string>Close program</string>
   </property>
  </action>
 </widget>
 <resources/>
 <connections/>
</ui>

子文件：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Form</class>
 <widget class="QWidget" name="Form">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>761</width>
    <height>413</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Form</string>
  </property>
  <layout class="QGridLayout" name="gridLayout_2">
   <item row="3" column="0" colspan="2">
    <layout class="QHBoxLayout" name="horizontalLayout">
     <item>
      <layout class="QVBoxLayout" name="verticalLayout">
       <item>
        <widget class="QCheckBox" name="checkBox_3">
         <property name="text">
          <string>option 1</string>
         </property>
        </widget>
       </item>
       <item>
        <widget class="QCheckBox" name="checkBox_2">
         <property name="text">
          <string>option 2</string>
         </property>
        </widget>
       </item>
      </layout>
     </item>
     <item>
      <widget class="QCheckBox" name="checkBox">
       <property name="text">
        <string>option 3</string>
       </property>
      </widget>
     </item>
    </layout>
   </item>
   <item row="0" column="0" colspan="2">
    <layout class="QVBoxLayout" name="verticalLayout_3">
     <item>
      <widget class="QLabel" name="label">
       <property name="text">
        <string>some text</string>
       </property>
      </widget>
     </item>
    </layout>
   </item>
   <item row="1" column="0" colspan="2">
    <layout class="QHBoxLayout" name="horizontalLayout_2">
     <item>
      <widget class="QPushButton" name="createObj">
       <property name="text">
        <string>new object</string>
       </property>
      </widget>
     </item>
    </layout>
   </item>
   <item row="2" column="0" colspan="2">
    <widget class="QWidget" name="objframe" native="true">
     <layout class="QHBoxLayout" name="horizontalLayout_5"/>
    </widget>
   </item>
  </layout>
 </widget>
 <resources/>
 <connections/>
</ui>

subsubwin文件：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Form</class>
 <widget class="QWidget" name="Form">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>746</width>
    <height>48</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>Form</string>
  </property>
  <layout class="QGridLayout" name="gridLayout_2">
   <property name="spacing">
    <number>0</number>
   </property>
   <item row="0" column="0">
    <layout class="QGridLayout" name="gridLayout">
     <property name="horizontalSpacing">
      <number>0</number>
     </property>
     <item row="0" column="23">
      <widget class="QWidget" name="widget_28" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="25">
      <widget class="QWidget" name="widget_25" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="35">
      <widget class="QWidget" name="widget_13" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="4">
      <widget class="QWidget" name="widget_2" native="true">
       <property name="sizePolicy">
        <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
         <horstretch>0</horstretch>
         <verstretch>0</verstretch>
        </sizepolicy>
       </property>
       <property name="layoutDirection">
        <enum>Qt::LeftToRight</enum>
       </property>
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="33">
      <widget class="QWidget" name="widget_18" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="28">
      <widget class="QWidget" name="widget_15" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="0">
      <widget class="QLabel" name="name">
       <property name="text">
        <string>Name:</string>
       </property>
      </widget>
     </item>
     <item row="0" column="36">
      <widget class="QWidget" name="widget_23" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="27">
      <widget class="QWidget" name="widget_26" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="21">
      <widget class="QWidget" name="widget_27" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="20">
      <widget class="QWidget" name="widget_10" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="8">
      <widget class="QWidget" name="widget_8" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="37">
      <widget class="QWidget" name="widget_17" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="14">
      <widget class="QWidget" name="widget_21" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="22">
      <widget class="QWidget" name="widget_11" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="13">
      <widget class="QWidget" name="widget_9" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="32">
      <widget class="QWidget" name="widget_20" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="31">
      <widget class="QWidget" name="widget_19" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="19">
      <widget class="QWidget" name="widget_24" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="9">
      <widget class="QWidget" name="widget_32" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="16">
      <widget class="QWidget" name="widget_30" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="24">
      <widget class="QWidget" name="widget_12" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="2">
      <widget class="QComboBox" name="comboBox">
       <property name="sizeAdjustPolicy">
        <enum>QComboBox::AdjustToContentsOnFirstShow</enum>
       </property>
       <item>
        <property name="text">
         <string>some list</string>
        </property>
       </item>
      </widget>
     </item>
     <item row="0" column="18">
      <widget class="QWidget" name="widget_29" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="6">
      <widget class="QWidget" name="widget_5" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="11">
      <widget class="QWidget" name="widget_31" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="15">
      <widget class="QWidget" name="widget_34" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="30">
      <widget class="QWidget" name="widget_16" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="17">
      <widget class="QWidget" name="widget_14" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="5">
      <widget class="QWidget" name="widget_4" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="26">
      <widget class="QWidget" name="widget_7" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="12">
      <widget class="QWidget" name="widget_33" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="34">
      <widget class="QWidget" name="widget_3" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="7">
      <widget class="QWidget" name="widget_6" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="3">
      <widget class="QWidget" name="widget_36" native="true"/>
     </item>
     <item row="0" column="38">
      <widget class="QWidget" name="widget" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string notr="true">background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="10">
      <widget class="QWidget" name="widget_35" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="29">
      <widget class="QWidget" name="widget_22" native="true">
       <property name="autoFillBackground">
        <bool>false</bool>
       </property>
       <property name="styleSheet">
        <string>background-color: rgb(204, 0, 0);</string>
       </property>
      </widget>
     </item>
     <item row="0" column="1">
      <widget class="QWidget" name="widget_37" native="true"/>
     </item>
    </layout>
   </item>
  </layout>
 </widget>
 <resources/>
 <connections/>
</ui>

Answer 1

根据您的代码，您试图将一个窗口小部件替换为另一个窗口小部件，并且由于更改引用不会更改对象，因此这是不可能的，在这种情况下，解决方案是使用您在Qt Designer中设置的版式：

objframe