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This article editor for you detailed introduction of "Python how to modify single-column QVBoxLayout for multi-column", detailed content, clear steps, details handled properly, I hope that this "Python how to modify single-column QVBoxLayout for multi-column" article can help you solve doubts, the following follow the editor's ideas slowly in-depth, together to learn new knowledge.

Replacing the layout of QWidget is not that simple, assigning another object to a variable that stores other layout references.

Self.layout = Foo () widget.setLayout (self.layout) self.layout = Bar ()

Objects are different from variables in that the object itself is the entity that performs the operation, but the variable is only the place where the object reference is stored. For example, the object may be a person and change our names, so if they change our names, it doesn't mean they change us as a person.

The solution is to use sip. Delete delete Q layout, and then set up a new layout:

Import sysfrom PyQt5.QtCore import pyqtSlotfrom PyQt5.QtWidgets import (QApplication, QHBoxLayout, QMainWindow, QPushButton, QVBoxLayout, QWidget ) import sipclass TestCase (QMainWindow): def _ init__ (self): super (). _ init__ () test = QWidget () self.setCentralWidget (test) layout = QVBoxLayout (test) for i in range (10): temp_btn = QPushButton (str (I)) temp_btn.pressed.connect (self.multi_col) layout .addWidget (temp_btn) @ pyqtSlot () def multi_col (self): cols = [QVBoxLayout () QVBoxLayout ()] old_layout = self.centralWidget () .layout () while old_layout.count (): child = old_layout.takeAt (0) widget = child.widget () if widget is not None: old_layout.removeItem (child) cols [0] .ad dWidget (widget) cols [1], cols [0] = cols [0] Cols [1] sip.delete (old_layout) lay = QHBoxLayout (self.centralWidget ()) lay.addLayout (cols [0]) lay.addLayout (cols [1]) def main (): app = QApplication (sys.argv) window = TestCase () window.show () app.exec_ () if _ name__ = = "_ _ main__": main () reads here This article "Python how to modify single-column QVBoxLayout to multiple columns" has been introduced. If you want to master the knowledge points of this article, you still need to practice and use it yourself. If you want to know more about related articles, welcome to follow the industry information channel.

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