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_())
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