[英]PyQt : Updating Custom List Widget Item in QListWidget
I was able to add custom QListWidgetItem in QListWidget using the following code - 我能够使用以下代码在QListWidget中添加自定义QListWidgetItem -
for item in dl_list:
widget = QtWidgets.QWidget()
card = Ui_DownloadCard()
card.setupUi(widget)
card.set_filename(item["title"])
card.set_progress_bar(item["progress"])
card.set_progress_text(item["progress"]/item["size"])
card.set_speed(item["speed"])
listItem = QtWidgets.QListWidgetItem(self.download_list)
listItem.setSizeHint(widget.sizeHint())
self.myListWidget.addItem(listItem)
self.myListWidget.setItemWidget(listItem, widget)
Now I wish to update each item with new speed & progress. 现在我希望以新的速度和进度更新每个项目。 I tried the following code - 我尝试了以下代码 -
self.myListWidget.item(0).set_speed("300 KB/s")
But it gives error saying 但它给出了错误的说法
AttributeError: 'QListWidgetItem' object has no attribute 'set_speed'
So what is the correct way to update the item? 那么更新项目的正确方法是什么?
listItem = QtWidgets.QListWidgetItem(self.download_list)
您需要使用自定义项目:
listItem = YourCustomListWidgetItem(self.download_list)
From specs: http://pyqt.sourceforge.net/Docs/PyQt4/qlistwidget.html#setItemWidget 来自规格: http : //pyqt.sourceforge.net/Docs/PyQt4/qlistwidget.html#setItemWidget
QListWidget.setItemWidget QListWidget.setItemWidget
This function should only be used to display static content in the place of a list widget item. 此功能仅应用于在列表小部件项目的位置显示静态内容。 If you want to display custom dynamic content or implement a custom editor widget, use QListView and subclass QItemDelegate instead. 如果要显示自定义动态内容或实现自定义编辑器窗口小部件,请改用QListView和子类QItemDelegate。
So if you want to work with dynamic components it's necessary to use QListView and subclass QItemDelegate instead. 因此,如果您想使用动态组件,则需要使用QListView和子类QItemDelegate。
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