经常将QStackedWidget和QListWidget或者QListView搭配使用
1 import sys 2 from PyQt5.QtWidgets import QApplication, QWidget, QStackedWidget, QLabel, QLineEdit, QDateEdit, 3 QComboBox, QTextEdit, QListWidget, QGridLayout, QHBoxLayout 4 5 class Demo(QWidget): 6 def __init__(self): 7 super(Demo, self).__init__() 8 self.stack1 = QWidget() #实例化一个窗口 9 self.stack2 = QWidget() 10 self.stack3 = QTextEdit() 11 12 self.stack1_init() 13 self.stack2_init() 14 15 self.stacked_widget = QStackedWidget(self) # 创建一个堆叠窗口【虚拟窗口】 16 self.stacked_widget.addWidget(self.stack1) #给堆叠窗口添加子窗口或子控件 17 self.stacked_widget.addWidget(self.stack2) 18 self.stacked_widget.addWidget(self.stack3) 19 self.stacked_widget.currentChanged.connect(lambda: print(self.stacked_widget.currentIndex())) 20 #堆叠窗口发生变化时，都会触发信号 21 #self.stacked_widget.currentIndex()返回堆叠窗口序列号 22 23 self.list_widget = QListWidget(self) #创建列表控件--用来放标签项 24 self.list_widget.addItem('Basic Info') #在列表控件中添加标签项。参数：标签显示文本 25 self.list_widget.addItem('Contact Info') 26 self.list_widget.addItem('More Info') 27 self.list_widget.clicked.connect(self.change_func) #单击列表控件时触发信号 28 29 self.h_layout = QHBoxLayout() 30 self.h_layout.addWidget(self.list_widget) 31 self.h_layout.addWidget(self.stacked_widget) 32 33 self.setLayout(self.h_layout) 34 35 def stack1_init(self): 36 name_label = QLabel('姓名:', self.stack1) 37 gender_label = QLabel('性别:', self.stack1) 38 bd_label = QLabel('出生日期:', self.stack1) 39 40 name_line = QLineEdit(self.stack1) 41 items = ['请选择性别', '男', '女'] 42 gender_combo = QComboBox(self.stack1) 43 gender_combo.addItems(items) 44 bd_dateedit = QDateEdit(self.stack1) 45 46 g_layout = QGridLayout() 47 g_layout.addWidget(name_label, 0, 0, 1, 1) 48 g_layout.addWidget(name_line, 0, 1, 1, 1) 49 g_layout.addWidget(gender_label, 2, 0, 1, 1) 50 g_layout.addWidget(gender_combo, 2, 1, 1, 1) 51 g_layout.addWidget(bd_label, 3, 0, 1, 1) 52 g_layout.addWidget(bd_dateedit, 3, 1, 1, 1) 53 54 self.stack1.setLayout(g_layout) 55 56 def stack2_init(self): 57 tel_label = QLabel('Tel:', self.stack2) 58 mobile_label = QLabel('Mobile:', self.stack2) 59 add_label = QLabel('Address:', self.stack2) 60 61 tel_line = QLineEdit(self.stack2) 62 mobile_line = QLineEdit(self.stack2) 63 add_line = QLineEdit(self.stack2) 64 65 g_layout = QGridLayout() 66 g_layout.addWidget(tel_label, 0, 0, 1, 1) 67 g_layout.addWidget(tel_line, 0, 1, 1, 1) 68 g_layout.addWidget(mobile_label, 1, 0, 1, 1) 69 g_layout.addWidget(mobile_line, 1, 1, 1, 1) 70 g_layout.addWidget(add_label, 2, 0, 1, 1) 71 g_layout.addWidget(add_line, 2, 1, 1, 1) 72 73 self.stack2.setLayout(g_layout) 74 75 def change_func(self): 76 self.stacked_widget.setCurrentIndex(self.list_widget.currentIndex().row()) 77 #设置堆叠窗口显示指定索引的窗口 78 #self.list_widget.currentIndex().row() 返回当前列表选中项的索引号 79 80 if __name__ == '__main__': 81 app = QApplication(sys.argv) 82 demo = Demo() 83 demo.show() 84 sys.exit(app.exec_())
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