completer = new QCompleter();
string_list_model = new QStringListModel();
completer->setCaseSensitivity(Qt::CaseInsensitive);
completer->setModel(string_list_model);
search_line_edit->setCompleter(completer);
connect(search_line_edit, &QLineEdit::editingFinished, this,
&MainWidget::editComplete);
槽函数如下:
void MainWidget::editComplete()
{
QString text = search_line_edit->text();
if(QString::compare(text, QString("")) != 0)
{
bool is_contains = word_list.contains(text, Qt::CaseInsensitive);
if(!is_contains)
{
word_list<<text;
string_list_model->setStringList(word_list);
}
}
}
初始word_list中无任何单词,当输入框编辑完成之后,首先判断是否为空,若非空,则检测word_list中是否包含该文本(忽略大小写),若不包含,则进行添加。
效果如下: