浏览按钮在软件 gui 中不起作用

Question

我正在为一个为不同客户端自动输入数据的软件开发 GUI，现在我正在实施第一个名为 Galicia 的客户端，但我无法使用浏览按钮，该按钮应该允许用户浏览文件数据存储的位置。目前它甚至没有像按钮一样做出反应。 （默认情况下，在 PyQt 中，当鼠标悬停在按钮上时，按钮会覆盖蓝色边框，甚至没有响应。）

这是我的代码

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QComboBox, QPushButton
from PyQt5.QtGui import QIcon, QStandardItemModel, QStandardItem
from PyQt5.QtWidgets import (
    QApplication, QMainWindow, QWidget, QLabel, QLineEdit,
    QPushButton, QFileDialog, QProgressBar
)
from PyQt5.QtCore import Qt, QThread, pyqtSignal, QSize
from analysis import analyze


class WorkerThread(QThread):
    progress_changed = pyqtSignal(int)

    def run(self):
        # Here you can put your own code to be executed in the main loop
        for i in range(101):
            self.progress_changed.emit(i)
            self.msleep(50)


class GaliciaGUI(QWidget):
    def __init__(self):
        super().__init__()


        central_widget = QWidget(self)


        self.search_label = QLabel("Search for a file:", central_widget)
        self.search_label.setGeometry(50, 50, 170, 30)

        self.search_button = QPushButton("Browse", central_widget)
        self.search_button.setGeometry(50, 80, 80, 30)
        self.search_button.clicked.connect(self.browse_file)

        self.date_start = QLabel("Fecha:", central_widget)
        self.date_start.setGeometry(350, 50, 170, 30)

        self.date_start_input = QLineEdit(central_widget)
        self.date_start_input.setGeometry(350, 80, 250, 30)

        self.date_start_input = QLineEdit(central_widget)
        self.date_start_input.setGeometry(50, 150, 200, 30)
        self.date_start_input.setEchoMode(QLineEdit.Password)

        self.selected_file_label = QLabel("", central_widget)
        self.selected_file_label.setGeometry(50, 80, 300, 30)

        self.password_label = QLabel("Enter password:", central_widget)
        self.password_label.setGeometry(50, 120, 150, 30)

        self.password_input = QLineEdit(central_widget)
        self.password_input.setGeometry(50, 150, 200, 30)
        self.password_input.setEchoMode(QLineEdit.Password)

        self.start_button = QPushButton("Start", central_widget)
        self.start_button.setGeometry(50, 190, 80, 30)
        self.start_button.clicked.connect(self.start_main_loop)

        self.progress_bar = QProgressBar(central_widget)
        self.progress_bar.setGeometry(50, 230, 300, 30)
        self.progress_bar.setValue(0)

        self.status_label = QLabel("", central_widget)
        self.status_label.setGeometry(50, 250, 150, 30)

        self.file_path = None
        self.worker_thread = WorkerThread()
        self.worker_thread.progress_changed.connect(self.update_progress_bar)

    def browse_file(self):
        file_path, _ = QFileDialog.getOpenFileName(
            self, "Select a file", "", "All Files (*);;Text Files (*.txt)"
        )
        if file_path:
            self.selected_file_label.setText(f"Selected file: {file_path}")
            self.file_path = file_path

    def start_main_loop(self):
        password = self.password_input.text() or None
        if self.file_path:
            self.worker_thread.start()
            analyze(self.file_path, password)

    def update_progress_bar(self, value):
        self.progress_bar.setValue(value)
        if value == 100:
            self.status_label.setText("Success")


class LandingPage(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('Client Selection')
        self.setGeometry(100, 100, 400, 300)
        
        self.client_label = QLabel('Select a client:', self)
        self.client_label.move(50, 50)
        
        self.client_dropdown = QComboBox(self)
        self.client_dropdown.addItems(['Galicia', 'Client 2', 'Client 3'])  # Add more clients here
        self.client_dropdown.move(150, 50)
        
        self.submit_button = QPushButton('Submit', self)
        self.submit_button.move(150, 100)
        self.submit_button.clicked.connect(self.open_gui)
        
        self.galicia_gui = None  # Initialize instance variable for GaliciaGUI
        
        self.show()
    
    def open_gui(self):
        client = self.client_dropdown.currentText()
        if client == 'Galicia':
            self.galicia_gui = GaliciaGUI()
            self.galicia_gui.setGeometry(100, 100, 700, 600)
            self.galicia_gui.activateWindow()
            self.galicia_gui.raise_()
            self.galicia_gui.show()
            app = QApplication.instance()
            app.setActiveWindow(self.galicia_gui)
        elif client == 'Client 2':
            # Open Client 2 GUI
            pass  # Replace client
        elif client == 'Client 3':
            # Open Client 3 GUI
            pass  # Replace with client
if __name__ == '__main__':
    app = QApplication(sys.argv)
    landing_page = LandingPage()
    app.exec_()

我尝试实现一个按钮，它可以调出文件资源管理器（该软件适用于 windows），可以在其中浏览所需的文件，然后通过分析功能将所述文件输入到数据处理中。

Answer 1

固定支票

from PyQt5.QtCore import *
from PyQt5.QtGui import *
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QComboBox, QPushButton
from PyQt5.QtGui import QIcon, QStandardItemModel, QStandardItem
from PyQt5.QtWidgets import (
    QApplication, QMainWindow, QWidget, QLabel, QLineEdit,
    QPushButton, QFileDialog, QProgressBar
)
from PyQt5.QtCore import Qt, QThread, pyqtSignal, QSize
# from analysis import analyze


class WorkerThread(QThread):
    progress_changed = pyqtSignal(int)

    def run(self):
        # Here you can put your own code to be executed in the main loop
        for i in range(101):
            self.progress_changed.emit(i)
            self.msleep(50)


class GaliciaGUI(QWidget):
    def __init__(self):
        super().__init__()


        central_widget = QWidget(self)


        self.search_label = QLabel("Search for a file:", central_widget)
        self.search_label.setGeometry(50, 50, 170, 30)

        # self.browse_file()

        self.date_start = QLabel("Fecha:", central_widget)
        self.date_start.setGeometry(350, 50, 170, 30)

        self.date_start_input = QLineEdit(central_widget)
        self.date_start_input.setGeometry(350, 80, 250, 30)

        self.date_start_input = QLineEdit(central_widget)
        self.date_start_input.setGeometry(50, 150, 200, 30)
        self.date_start_input.setEchoMode(QLineEdit.Password)

        self.selected_file_label = QLabel("", central_widget)
        self.selected_file_label.setGeometry(50, 80, 300, 30)

        self.password_label = QLabel("Enter password:", central_widget)
        self.password_label.setGeometry(50, 120, 150, 30)

        self.password_input = QLineEdit(central_widget)
        self.password_input.setGeometry(50, 150, 200, 30)
        self.password_input.setEchoMode(QLineEdit.Password)

        self.start_button = QPushButton("Start", central_widget)
        self.start_button.setGeometry(50, 190, 80, 30)
        self.start_button.clicked.connect(self.start_main_loop)

        self.progress_bar = QProgressBar(central_widget)
        self.progress_bar.setGeometry(50, 230, 300, 30)
        self.progress_bar.setValue(0)

        self.status_label = QLabel("", central_widget)
        self.status_label.setGeometry(50, 250, 150, 30)

        
        self.search_button = QPushButton("Browse", central_widget)
        self.search_button.setGeometry(50, 80, 80, 30)
        self.search_button.pressed.connect(lambda: self.browse_file())

        self.file_path = None
        self.worker_thread = WorkerThread()
        self.worker_thread.progress_changed.connect(self.update_progress_bar)

    def browse_file(self):
        file_path, _ = QFileDialog.getOpenFileName(
            self, "Select a file", "", "All Files (*);;Text Files (*.txt)"
        )
        if file_path:
            self.selected_file_label.setText(f"Selected file: {file_path}")
            self.file_path = file_path

    def start_main_loop(self):
        password = self.password_input.text() or None
        if self.file_path:
            self.worker_thread.start()
            analyze(self.file_path, password)

    def update_progress_bar(self, value):
        self.progress_bar.setValue(value)
        if value == 100:
            self.status_label.setText("Success")


class LandingPage(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('Client Selection')
        self.setGeometry(100, 100, 400, 300)
        
        self.client_label = QLabel('Select a client:', self)
        self.client_label.move(50, 50)
        
        self.client_dropdown = QComboBox(self)
        self.client_dropdown.addItems(['Galicia', 'Client 2', 'Client 3'])  # Add more clients here
        self.client_dropdown.move(150, 50)
        
        self.submit_button = QPushButton('Submit', self)
        self.submit_button.move(150, 100)
        self.submit_button.clicked.connect(self.open_gui)
        
        self.galicia_gui = None  # Initialize instance variable for GaliciaGUI
        
        self.show()
    
    def open_gui(self):
        client = self.client_dropdown.currentText()
        if client == 'Galicia':
            self.galicia_gui = GaliciaGUI()
            self.galicia_gui.setGeometry(100, 100, 700, 600)
            self.galicia_gui.activateWindow()
            self.galicia_gui.raise_()
            self.galicia_gui.show()
            app = QApplication.instance()
            app.setActiveWindow(self.galicia_gui)
        elif client == 'Client 2':
            # Open Client 2 GUI
            pass  # Replace client
        elif client == 'Client 3':
            # Open Client 3 GUI
            pass  # Replace with client
if __name__ == '__main__':
    app = QApplication(sys.argv)
    landing_page = LandingPage()
    app.exec_()

（不要忘记验证答案。谢谢）