如何使用 PyQt4.uic.loadUi 将第二个 .ui 加载到 self 中? [英] How to load second .ui into self with PyQt4.uic.loadUi?

问题描述

我正在创建一个加载几个 .ui 文件的应用程序.第一个是 QMainWindow 类型，其他是 QWidget 类型.

我不知道如何将第二个 UI (module.ui) 加载到 self 中，从而通过 self. 访问小部件.

如何实现?

from PyQt4 import QtGui从 PyQt4 导入 uic类 TestApp(QtGui.QMainWindow):def __init__(self):super(TestApp, self).__init__()# 加载主窗口和模块uic.loadUi('main_window.ui', self) # QMainWindow，包含testLayout，加载到selfui_module = uic.loadUi('module.ui') # QWidget# 将模块附加到主窗口self.testLayout.addWidget(ui_module) # 这很好用# 在 UI 模块中编辑小部件self.label.setText('Hello') # 不起作用(因为 self.label 不存在)

我可以这样做:

self.label = ui_module.labelself.label.setText('你好')

...但我想从一开始就将 UI 加载到 self 中.

如果我尝试将 UI 加载到 self 中，则会出现错误:

uic.loadUi('module.ui', self)>>>QLayout: 试图将 QLayout "" 添加到已经有布局的 TestApp "Form"

解决方案

您需要创建一个小部件来加载 ui 文件

self.widget = QWidget(self)uic.loadUi('module.ui', self.widget)self.widget.label.setText('你好')

话虽如此，如果您为其他小部件创建一个单独的类可能会更好.

class MyWidget(QWidget):def __init__(self, **args, **kwargs):super(MyWidget, self).__init__(*args, **kwargs)uic.loadUi('module.ui', self)self.label.setText('你好')类 TestApp(QtGui.QMainWindow):def __init__(self):...self.widget = MyWidget(self)

I'm creating an application which loads a couple of .ui files. The first one is of type QMainWindow and the others are of type QWidget.

I can't figure out how to load the second UI (module.ui) into self, making widgets accessible through self.<widget_name>.

How can this be achieved?

from PyQt4 import QtGui
from PyQt4 import uic


class TestApp(QtGui.QMainWindow):
    def __init__(self):
        super(TestApp, self).__init__()

        # Load main window and the module
        uic.loadUi('main_window.ui', self)  # QMainWindow, contains testLayout, loads into self
        ui_module = uic.loadUi('module.ui')  # QWidget

        # Attach module to main window
        self.testLayout.addWidget(ui_module)  # this works fine

        # Edit widget in UI module
        self.label.setText('Hello')  # does not work (since self.label doesn't exist)

I could do this:

self.label = ui_module.label
self.label.setText('Hello')

...but I'd like to instead load the UI into self from the start.

If I try to load the UI into self, I get an error:

uic.loadUi('module.ui', self)
>>> QLayout: Attempting to add QLayout "" to TestApp "Form", which already has a layout

解决方案

You need to create a widget to load the ui file onto

self.widget = QWidget(self)
uic.loadUi('module.ui', self.widget)

self.widget.label.setText('Hello')

That being said, it would probably be better if you created a separate class for the other widget.

class MyWidget(QWidget):
    def __init__(self, **args, **kwargs):
        super(MyWidget, self).__init__(*args, **kwargs)
        uic.loadUi('module.ui', self)
        self.label.setText('Hello')

class TestApp(QtGui.QMainWindow):
    def __init__(self):
        ...
        self.widget = MyWidget(self)

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