PyQT5 在 Gridview 小部件下方添加第二个布局

Question

Good day! I hope someone can tell me where I am going wrong with the following simple code. I am displaying images in a gridview (shown as buttons for simplicity below) These use the usual row and columns to display in formation. My issue is under the gridview I wish to add two independent buttons (ok/cancel). These I don't want to be part of grid but on their own underneath.

From many hours of messing around I thought I would need to add my grid view to a vertical box ie top slot and then the buttons i've made to the bottom one but i'm not sure of the correct way to achieve this. My poor attempt at this code is below. One thing to mention is the completed gridview is passed into a scrollable area. I don't know if that's why I don't see the buttons appear in my example. Thank you

Hoping for it to look like this

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *

class Window(QMainWindow):
    def __init__(self):
        super().__init__()
        self.title = "Lost with widgets"
        self.main_window()

    def main_window(self):
        self.setWindowTitle(self.title)
        self.setGeometry(0, 0, 600, 600)
        # Make Grid
        self.grid = QGridLayout()
        self.grid.setSpacing(100)
        # Make buttons
        folder_button = QPushButton('Top Buttons 1', self)
        self.grid.addWidget(folder_button, 0, 1, alignment=Qt.AlignCenter)  # Add to grid
        folder_button1 = QPushButton('Top Buttons 2', self)
        self.grid.addWidget(folder_button1, 0, 2, alignment=Qt.AlignCenter)  # Add to grid
        # Complete layout of Grid
        self.setLayout(self.grid)
        #########################################################
        # Create Ok and Cancel bottom buttons#
        ########################################################
        okButton = QPushButton("OK")
        cancelButton = QPushButton("Cancel")
        # Horizonal
        hbox = QHBoxLayout()
        hbox.addStretch(1)
        hbox.addWidget(okButton)
        hbox.addWidget(cancelButton)
        # Vertical
        vbox = QVBoxLayout()
        vbox.addStretch(1)
        vbox.addLayout(hbox)
        # Set layout
        self.setLayout(hbox)
        # add widget and set its layout
        wrapper_widget = QWidget()
        wrapper_widget.setLayout(self.grid)
        # Scroll
        scroll = QScrollArea()
        scroll.setWidget(wrapper_widget)
        scroll.setSizeAdjustPolicy(scroll.AdjustToContents)
        scroll.setWidgetResizable(False) # Spaces out
        self.setCentralWidget(scroll)
        # Show
        self.show()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    sys.exit(app.exec())

Answer 1

It's because you set scroll widget as central widget. scroll widget contains only wrapper_widget , which contains gridlayout , not vbox .

Try creating vbox and add scroll widget and hbox to vbox , and set central widget with QWidget which has vbox layout.

I modified some of your code, adding master_widget which has vbox layout that contains scroll and hbox layout. Check this!

class Window(QMainWindow):
    def __init__(self):
        super().__init__()
        self.title = "Lost with widgets"
        self.main_window()

    def main_window(self):
        self.setWindowTitle(self.title)
        self.setGeometry(0, 0, 600, 600)
        # Make Grid
        self.grid = QGridLayout()
        self.grid.setSpacing(100)
        # Make buttons
        folder_button = QPushButton('Top Buttons 1', self)
        self.grid.addWidget(folder_button, 0, 1, alignment=Qt.AlignCenter)  # Add to grid
        folder_button1 = QPushButton('Top Buttons 2', self)
        self.grid.addWidget(folder_button1, 0, 2, alignment=Qt.AlignCenter)  # Add to grid
        # Complete layout of Grid
        self.setLayout(self.grid)
        #########################################################
        # Create Ok and Cancel bottom buttons#
        ########################################################
        okButton = QPushButton("OK")
        cancelButton = QPushButton("Cancel")
        # Horizonal
        hbox = QHBoxLayout()
        hbox.addStretch(1)
        hbox.addWidget(okButton)
        hbox.addWidget(cancelButton)
        # Vertical
        vbox = QVBoxLayout()
        vbox.addStretch(1)
        # vbox.addLayout(hbox)
        # Set layout
        # self.setLayout(vbox)
        # add widget and set its layout
        wrapper_widget = QWidget()
        wrapper_widget.setLayout(self.grid)
        # Scroll
        scroll = QScrollArea()
        scroll.setWidget(wrapper_widget)
        # scroll.setSizeAdjustPolicy(scroll.AdjustToContents)
        scroll.setWidgetResizable(False) # Spaces out
        master_widget = QWidget()
        master_widget.setLayout(vbox)
        vbox.addWidget(scroll)
        vbox.addLayout(hbox)
        self.setCentralWidget(master_widget)
        # Show
        self.show()