python – PyQt – 多次使用QLineEdit自动完成

我希望有可能在我的QLineEdit中多次使用自动完成器,我发现使用QTextEdit的例子,但我找不到QLineEdit.这是我使用的一段代码(非常简单)：

from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
from PyQt5.QtWidgets import *
import sys

def main():    
    app     = QApplication(sys.argv)
    edit    = QLineEdit()
    strList = ["Germany", "Spain", "France", "Norway"]
    completer = QCompleter(strList,edit)

    edit.setCompleter(completer)
    edit.show()

    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

例如,如果我添加一个逗号,我希望完成者再次“开始预测”同一QLineEdit中的单词.
谢谢.

解决方法:

我找到了答案,如果它可以帮助别人,我为Completer创建了一个类：

class Completer(QtWidgets.QCompleter):

    def __init__(self, parent=None):
        super(Completer, self).__init__(parent)

        self.setCaseSensitivity(Qt.CaseInsensitive)
        self.setCompletionMode(QtWidgets.QCompleter.PopupCompletion)
        self.setWrapAround(False)

    # Add texts instead of replace
    def pathFromIndex(self, index):
        path = QtWidgets.QCompleter.pathFromIndex(self, index)

        lst = str(self.widget().text()).split(',')

        if len(lst) > 1:
            path = '%s, %s' % (','.join(lst[:-1]), path)

        return path

    # Add operator to separate between texts
    def splitPath(self, path):
        path = str(path.split(',')[-1]).lstrip(' ')
        return [path]

我在QLineEdit的类中使用它,如：

class TextEdit(QtWidgets.QLineEdit):

    def __init__(self, parent=None):
        super(TextEdit, self).__init__(parent)

        self.setPlaceholderText("example : ")
        self._completer = Completer(self)
        self.setCompleter(self._completer)

标签：pyqt5,python,pyqt,qcompleter
来源： https://codeday.me/bug/20191002/1844825.html