QListView在parent构造里创建并hide后show不显示

[qq188818520]

​class ArtNoCompleteView : public QListView{
...
}

ArtNoCompleteView::ArtNoCompleteView(QWidget *parent):QListView(parent){
...
}

class ArtNoComplete : public QWidget{
...
ArtNoCompleteView* view;
}

ArtNoComplete::ArtNoComplete(QWidget *parent) ：QWidget(parent) {
...
editor = new QLineEdit(this);

view =new ArtNoCompleteView(this);
view->setModel(model);
view->hide();//这里view在parent构造里先隐藏
connect(editor,&QLineEdit::textChanged,[this](QString str){
...
view->show();//这里我确认调用了，但窗口不显示
})
}

[军神关云长_大凡]

不hide的情况能够显示吗？如果不能就不是因为hide导致显示不了的，就可能是其他原因。