[英]How to add a widget into central Widget using code in Qt
I need to add a widget to the form using code, but don't by use QHBoxLayout or QVBoxLayout. 我需要使用代码向窗体添加小部件,但不必使用QHBoxLayout或QVBoxLayout。
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
fields[0] = new CustomLabel();
fields[0]->setText("Hello");
//how to show it
}
You can simply use setCentralWidget()
您可以简单地使用setCentralWidget()
documentation of setCentralWidget() setCentralWidget()的文档
like this ui->setCentralWidget(fields[0]);
像这样的ui->setCentralWidget(fields[0]);
or maybe with this
replacing ui
或者用this
替换ui
But, to displayed many widget you have to use a widget that contains the matrix of labels (widget). 但是,要显示许多小部件,您必须使用包含标签矩阵(小部件)的小部件。 When you have the parent widget that contain the matrix display it with setCentralWidget()
当您具有包含矩阵的父窗口小部件时,使用setCentralWidget()
对其进行显示
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