c++ - 如何在 Qt 中以编程方式向主窗口添加按钮并使用 css 文件更改它们的样式？

Question

我将向对话框添加两个按钮，并且我想使用 css 文件更改它们的样式表:

我还定义了以下不起作用的按钮:

sendButton = new QPushButton();
sendButton->setVisible(true);
sendButton->setText("sendButton");
sendButton->setStyleSheet("QPushButton#sendButton {\n"
                          "background-color: red;\n"
                          "border-style: outset;\n"
                          "border-width: 2px;\n"
                          "border-radius: 10px;\n"
                          "border-color: beige;\n"
                          "font: bold 14px;\n"
                          "min-width: 10em;\n"
                          "padding: 6px;\n"
                          "}\n"
                          "QPushButton#reciveButton {\n"
                          "background-color: green;\n"
                          "border-style: outset;\n"
                          "border-width: 2px;\n"
                          "border-radius: 10px;\n"
                          "border-color: beige;\n"
                          "font: bold 14px;\n"
                          "min-width: 10em;\n"
                          "padding: 6px;\n"
                          "}\n");


ui->horizontalLayout->addWidget(sendButton);

Answer 1

如果您使用ID选择器QPushButton#objectName，请确保还为您的QPushButton设置对象名称，否则选择器将无法工作

sendButton = new QPushButton();
sendButton->setVisible(true);
sendButton->setText("sendButton");

sendButton->setObjectName("sendButton"); /* Set the object name */

sendButton->setStyleSheet(...);

希望这有帮助 =)