Python PyQt5 我想设置我的网格布局的 position

Question

I need to set the position of my Grid Layout. It has to be exactly where I want it to be. I've tried some methods like ".setGeometry, .setAlignment" and I couldn't unfortunately have the result exactly I wanted.

As you can see from this photo, I want it to be in the bottom right but I guess there's no method for it. (I need to say that the interface in the photo below is a different interface. I don't need this interface. Because of I wanted to show you exactly what kind of stuff I wanted.)

Answer 1

You can achieve this using layouts and their setStretch methods.

Here is a runnable example:

from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *

class MainWindow(QMainWindow):
    def __init__(self, parent=None) -> None:
        super().__init__(parent)
        self.central = QWidget()
        self.layout = QVBoxLayout(self.central)
        self.hlayout = QHBoxLayout()
        self.btn1 = QPushButton("PushButton", self)
        self.btn2 = QPushButton("PushButton", self)
        self.btn3 = QPushButton("PushButton", self)
        self.hlayout.addStretch()
        self.hlayout.addWidget(self.btn1)
        self.hlayout.addWidget(self.btn2)
        self.hlayout.addWidget(self.btn3)
        self.layout.addStretch()
        self.layout.addLayout(self.hlayout)
        self.setCentralWidget(self.central)

app = QApplication([])
window = MainWindow()
window.show()
app.exec_()

The alternative would be to use the QHBoxLayout.setgeometry(QRect(x, y, w, h)) but this will force the layout into a specific position that will not adjust dynamically if you resize the window, or for any other reason.