python - 如何在 PyQt5 中制作多页应用程序?
问题描述
我想在 PyQt 中制作一个简单的 GUI-App。当一个按钮被点击时,它应该带你到下一页。就像您在安装程序时知道的这些安装对话框一样。
我试图在与 MainWindow 完全相同的位置打开一个新窗口,但这感觉不对。
苏,这是我的代码:
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.title = "MainWindow"
# Here are some height & width variables
self.initUI()
def initUI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
self.UiComponents()
def UiComponents(self):
self.searchButton = QPushButton("", self)
# alot of UiComponents go here
self.searchButton.clicked.connect(self.make_handleButton("searchButton"))
def make_handleButton(self, button):
def handleButton():
if button == "searchButton":
### here it should go to SearchWindow ###
#elif button == "importButton":
# self.importWindow()
return handleButton
class SearchWindow(QMainWindow):
def __init__(self):
super().__init__()
self.title = "Search for something"
# Here are some height & width variables
self.initUI()
def initUI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
self.UiComponents()
self.hide()
def goToMain(self):
### here it should go back to the MainWindow ###
def UiComponents(self):
self.backButton = QPushButton("BackButton", self)
self.backButton.setGeometry(QRect(5, 5, self.backButtonWidth, self.backButtonHeight))
self.backButton.clicked.connect(self.goToMain)
解决方案
您必须使用 QStackWidget,在以下部分中有一个示例:
from PyQt5 import QtCore, QtGui, QtWidgets
class PageWindow(QtWidgets.QMainWindow):
gotoSignal = QtCore.pyqtSignal(str)
def goto(self, name):
self.gotoSignal.emit(name)
class MainWindow(PageWindow):
def __init__(self):
super().__init__()
self.initUI()
self.setWindowTitle("MainWindow")
def initUI(self):
self.UiComponents()
def UiComponents(self):
self.searchButton = QtWidgets.QPushButton("", self)
self.searchButton.clicked.connect(
self.make_handleButton("searchButton")
)
def make_handleButton(self, button):
def handleButton():
if button == "searchButton":
self.goto("search")
return handleButton
class SearchWindow(PageWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setWindowTitle("Search for something")
self.UiComponents()
def goToMain(self):
self.goto("main")
def UiComponents(self):
self.backButton = QtWidgets.QPushButton("BackButton", self)
self.backButton.setGeometry(QtCore.QRect(5, 5, 100, 20))
self.backButton.clicked.connect(self.goToMain)
class Window(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super().__init__(parent)
self.stacked_widget = QtWidgets.QStackedWidget()
self.setCentralWidget(self.stacked_widget)
self.m_pages = {}
self.register(MainWindow(), "main")
self.register(SearchWindow(), "search")
self.goto("main")
def register(self, widget, name):
self.m_pages[name] = widget
self.stacked_widget.addWidget(widget)
if isinstance(widget, PageWindow):
widget.gotoSignal.connect(self.goto)
@QtCore.pyqtSlot(str)
def goto(self, name):
if name in self.m_pages:
widget = self.m_pages[name]
self.stacked_widget.setCurrentWidget(widget)
self.setWindowTitle(widget.windowTitle())
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
w = Window()
w.show()
sys.exit(app.exec_())
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