pyqt5的QCompleter自动补全 使用模板

相关说明

使用QCompleter类，就可以实现自动补全功能，效果图如下：

对应的代码很简单

 def init_lineedit(self): # 增加自动补全 self.completer = QCompleter(items_list) # 设置匹配模式 有三种： Qt.MatchStartsWith 开头匹配（默认） Qt.MatchContains 内容匹配 Qt.MatchEndsWith 结尾匹配 self.completer.setFilterMode(Qt.MatchContains) # 设置补全模式 有三种： QCompleter.PopupCompletion（默认） QCompleter.InlineCompletion QCompleter.UnfilteredPopupCompletion self.completer.setCompletionMode(QCompleter.PopupCompletion) # 给lineedit设置补全器 self.lineedit.setCompleter(self.completer) def init_combobox(self): # 增加选项元素 for i in range(len(items_list)): self.combobox.addItem(items_list[i]) self.combobox.setCurrentIndex(-1) # 增加自动补全 self.completer = QCompleter(items_list) self.completer.setFilterMode(Qt.MatchContains) self.completer.setCompletionMode(QCompleter.PopupCompletion) self.combobox.setCompleter(self.completer)

【如下代码，完全复制，直接运行，即可使用】

import sys from PyQt5.QtWidgets import * from PyQt5.QtGui import * from PyQt5.QtCore import * ################################################ items_list=["C","C++","Java","Python","JavaScript","C#","Swift","go","Ruby","Lua","PHP"] ################################################ class Widget(QWidget): def __init__(self, *args, **kwargs): super(Widget, self).__init__(*args, **kwargs) layout = QHBoxLayout(self) self.lineedit = QLineEdit(self, minimumWidth=200) self.combobox = QComboBox(self, minimumWidth=200) self.combobox.setEditable(True) layout.addWidget(QLabel("QLineEdit", self)) layout.addWidget(self.lineedit) layout.addItem(QSpacerItem(20, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)) layout.addWidget(QLabel("QComboBox", self)) layout.addWidget(self.combobox) #初始化combobox self.init_lineedit() self.init_combobox() #增加选中事件 self.combobox.activated.connect(self.on_combobox_Activate) def init_lineedit(self): # 增加自动补全 self.completer = QCompleter(items_list) # 设置匹配模式 有三种： Qt.MatchStartsWith 开头匹配（默认） Qt.MatchContains 内容匹配 Qt.MatchEndsWith 结尾匹配 self.completer.setFilterMode(Qt.MatchContains) # 设置补全模式 有三种： QCompleter.PopupCompletion（默认） QCompleter.InlineCompletion QCompleter.UnfilteredPopupCompletion self.completer.setCompletionMode(QCompleter.PopupCompletion) # 给lineedit设置补全器 self.lineedit.setCompleter(self.completer) def init_combobox(self): # 增加选项元素 for i in range(len(items_list)): self.combobox.addItem(items_list[i]) self.combobox.setCurrentIndex(-1) # 增加自动补全 self.completer = QCompleter(items_list) self.completer.setFilterMode(Qt.MatchContains) self.completer.setCompletionMode(QCompleter.PopupCompletion) self.combobox.setCompleter(self.completer) def on_combobox_Activate(self, index): print(self.combobox.count()) print(self.combobox.currentIndex()) print(self.combobox.currentText()) print(self.combobox.currentData()) print(self.combobox.itemData(self.combobox.currentIndex())) print(self.combobox.itemText(self.combobox.currentIndex())) print(self.combobox.itemText(index)) if __name__ == "__main__": app = QApplication(sys.argv) w = Widget() w.show() sys.exit(app.exec_())

本文如有帮助，敬请留言鼓励。
本文如有错误，敬请留言改进。