仿折叠控件效果

.settings/org.eclipse.core.resources.prefs

@@ -30,6 +30,7 @@ encoding//QGraphicsDropShadowEffect/ShadowEffect.py=utf-8
 encoding//QGraphicsView/WorldMap.py=utf-8
 encoding//QListView/CustomWidgetSortItem.py=utf-8
 encoding//QListView/SortItemByRole.py=utf-8
+encoding//QListWidget/FoldWidget.py=utf-8
 encoding//QMessageBox/CustomColorIcon.py=utf-8
 encoding//QProgressBar/Lib/WaterRippleProgressBar.py=utf-8
 encoding//QProgressBar/MetroCircleProgress.py=utf-8

QListWidget/FoldWidget.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Created on 2019年5月27日
+@author: Irony
+@site: https://pyqt5.com https://github.com/PyQt5
+@email: 892768447@qq.com
+@file: FoldWidget
+@description: 自定义item折叠控件仿QTreeWidget
+"""
+
+from PyQt5.QtCore import QSize
+from PyQt5.QtWidgets import QWidget, QPushButton, QFormLayout,\
+    QLineEdit, QListWidget, QListWidgetItem, QCheckBox
+
+
+__Author__ = "Irony"
+__Copyright__ = "Copyright (c) 2019"
+__Version__ = "Version 1.0"
+
+
+class CustomWidget(QWidget):
+
+    def __init__(self, item, *args, **kwargs):
+        super(CustomWidget, self).__init__(*args, **kwargs)
+        self.oldSize = None
+        self.item = item
+        layout = QFormLayout(self)
+        layout.addRow('我是label', QLineEdit(self))
+        layout.addRow('点击', QCheckBox(
+            '隐藏下面的按钮', self, toggled=self.hideChild))
+        self.button = QPushButton('我是被隐藏的', self)
+        layout.addRow(self.button)
+
+    def hideChild(self, v):
+        self.button.setVisible(not v)
+        # 这里很重要 当隐藏内部子控件时 需要重新计算高度
+        self.adjustSize()
+
+    def resizeEvent(self, event):
+        # 解决item的高度问题
+        super(CustomWidget, self).resizeEvent(event)
+        self.item.setSizeHint(QSize(self.minimumWidth(), self.height()))
+
+
+class CustomButton(QPushButton):
+    # 按钮作为开关
+
+    def __init__(self, item, *args, **kwargs):
+        super(CustomButton, self).__init__(*args, **kwargs)
+        self.item = item
+        self.setCheckable(True)  # 设置可选中
+
+    def resizeEvent(self, event):
+        # 解决item的高度问题
+        super(CustomButton, self).resizeEvent(event)
+        self.item.setSizeHint(QSize(self.minimumWidth(), self.height()))
+
+
+class Window(QListWidget):
+
+    def __init__(self, *args, **kwargs):
+        super(Window, self).__init__(*args, **kwargs)
+
+        for _ in range(3):
+            # 开关
+            item = QListWidgetItem(self)
+            btn = CustomButton(item, '折叠', self, objectName='testBtn')
+            self.setItemWidget(item, btn)
+
+            # 被折叠控件
+            item = QListWidgetItem(self)
+            # 通过按钮的选中来隐藏下面的item
+            btn.toggled.connect(item.setHidden)
+            self.setItemWidget(item, CustomWidget(item, self))
+
+
+if __name__ == '__main__':
+    import sys
+    import cgitb
+    sys.excepthook = cgitb.enable(1, None, 5, '')
+    from PyQt5.QtWidgets import QApplication
+    app = QApplication(sys.argv)
+    # 通过qss改变按钮的高度
+    app.setStyleSheet('#testBtn{min-height:40px;}')
+    w = Window()
+    w.show()
+    sys.exit(app.exec_())

QListWidget/README.md

@@ -4,6 +4,7 @@
   - [删除自定义Item](#1删除自定义Item)
   - [自定义可拖拽Item](#2自定义可拖拽Item)
   - [腾讯视频热播列表](#3腾讯视频热播列表)
+  - [仿折叠控件效果](#4仿折叠控件效果)
 
 ## 1、删除自定义Item
 [运行 DeleteCustomItem.py](DeleteCustomItem.py)
@@ -41,4 +42,14 @@
 2. `setWrapping(True)`
 3. `setResizeMode(QListWidget.Adjust)`
 
-![HotPlaylist](ScreenShot/HotPlaylist.gif)
+![HotPlaylist](ScreenShot/HotPlaylist.gif)
+
+## 4、仿折叠控件效果
+[运行 FoldWidget.py](FoldWidget.py)
+
+1. 利用`QListWidget`设置Item的自定义控件
+2. `QListWidget`通过间隔设置`QPushButton`和`CustomWidget`来添加
+3. 绑定按钮的选中状态通过`setHidden`设置Item的隐藏和显示
+4. 自定义控件中尺寸发生变化后需要调用`adjustSize()`来同步
+
+![FoldWidget](ScreenShot/FoldWidget.gif)

README.md

@@ -54,6 +54,7 @@ https://pyqt5.com 社区是专门针对PyQt5学习和提升开设的博客网站
     - [删除自定义Item](QListWidget/DeleteCustomItem.py)
     - [自定义可拖拽Item](QListWidget/DragDrop.py)
     - [腾讯视频热播列表](QListWidget/HotPlaylist.py)
+    - [仿折叠控件效果](QListWidget/FoldWidget.py)
     - [在item中添加图标](Test/partner_625781186/13.combo_listwidget)
   - [QTreeWidget](QTreeWidget)
     - [通过json数据生成树形结构](QTreeWidget/ParsingJson.py)