前言

在用Qt做開發時，為了方便快速，一般都使用Qt設計師界面類來做界面相關的布局，這個類在當前工程中是沒有.cpp或.h文件的，但主類又有引入了這個頭文件，點開轉到定義或聲明時，是打不開的，如下圖：

如果要把整個項目導成dll和lib,就按當前的文件導出，是會報找不到ui_XXX類的路徑的。那什么樣才能把設計好的.ui界面導成dll和lib呢，看了好多種辦法，有真接是用手寫代碼的方式去而已界面，這樣的工作量有點。下面我演示下我覺得可行辦法，雖然有些笨，但起碼可以調用。

解決方法

1.新建一個工程，包含.ui文件，然后打開.ui文件拖入想要的控件,保存，編譯.ui文件。

2.打開當前工程，找到目錄下的.ui文件，復制下來，新建一個目錄把它放進去。

3.然后去qt安路徑下找到uic.exe文件，也把它復制到剛剛放.ui文件的目錄下，此時當前目錄只有兩個文件。


4.按住窗口加R件，輸入cmd，進入控件臺界面，運行uic xxx.ui -o xxx.h或者uic xxx.ui -o xxx.cpp,在當前目錄下就多了一個.h或者.cpp文件，這兩個文件只要一個就可以了。

5.新建一個工程,選擇類庫。

6.把剛才生成的.h文件導入到當前工程，然后打開剛剛生成的源碼，我們可以看到整個類的所有屬性和成員函數。
.ui文件生成的.h文件

/******************************************************************************** ** Form generated from reading UI file 'QtGuiDllDemo.ui' ** ** Created by: Qt User Interface Compiler version 5.7.1 ** ** WARNING! All changes made in this file will be lost when recompiling UI file! ********************************************************************************/#ifndef QTGUIDLLDEMO_H #define QTGUIDLLDEMO_H#include <QtCore/QVariant> #include <QtWidgets/QAction> #include <QtWidgets/QApplication> #include <QtWidgets/QButtonGroup> #include <QtWidgets/QHeaderView> #include <QtWidgets/QMainWindow> #include <QtWidgets/QMenu> #include <QtWidgets/QMenuBar> #include <QtWidgets/QPushButton> #include <QtWidgets/QStatusBar> #include <QtWidgets/QToolBar> #include <QtWidgets/QWidget>QT_BEGIN_NAMESPACEclass Ui_QtGuiDllDemoClass { public:QAction *actionOpen;QWidget *centralWidget;QPushButton *pushButton;QPushButton *pushButton_2;QMenuBar *menuBar;QMenu *menu;QToolBar *mainToolBar;QStatusBar *statusBar;void setupUi(QMainWindow *QtGuiDllDemoClass){if (QtGuiDllDemoClass->objectName().isEmpty())QtGuiDllDemoClass->setObjectName(QStringLiteral("QtGuiDllDemoClass"));QtGuiDllDemoClass->resize(1046, 786);actionOpen = new QAction(QtGuiDllDemoClass);actionOpen->setObjectName(QStringLiteral("actionOpen"));centralWidget = new QWidget(QtGuiDllDemoClass);centralWidget->setObjectName(QStringLiteral("centralWidget"));pushButton = new QPushButton(centralWidget);pushButton->setObjectName(QStringLiteral("pushButton"));pushButton->setGeometry(QRect(330, 210, 231, 111));pushButton_2 = new QPushButton(centralWidget);pushButton_2->setObjectName(QStringLiteral("pushButton_2"));pushButton_2->setGeometry(QRect(400, 430, 231, 81));QtGuiDllDemoClass->setCentralWidget(centralWidget);menuBar = new QMenuBar(QtGuiDllDemoClass);menuBar->setObjectName(QStringLiteral("menuBar"));menuBar->setGeometry(QRect(0, 0, 1046, 23));menu = new QMenu(menuBar);menu->setObjectName(QStringLiteral("menu"));QtGuiDllDemoClass->setMenuBar(menuBar);mainToolBar = new QToolBar(QtGuiDllDemoClass);mainToolBar->setObjectName(QStringLiteral("mainToolBar"));QtGuiDllDemoClass->addToolBar(Qt::TopToolBarArea, mainToolBar);statusBar = new QStatusBar(QtGuiDllDemoClass);statusBar->setObjectName(QStringLiteral("statusBar"));QtGuiDllDemoClass->setStatusBar(statusBar);menuBar->addAction(menu->menuAction());menu->addAction(actionOpen);retranslateUi(QtGuiDllDemoClass);QMetaObject::connectSlotsByName(QtGuiDllDemoClass);} // setupUivoid retranslateUi(QMainWindow *QtGuiDllDemoClass){QtGuiDllDemoClass->setWindowTitle(QApplication::translate("QtGuiDllDemoClass", "QtGuiDllDemo", Q_NULLPTR));actionOpen->setText(QApplication::translate("QtGuiDllDemoClass", "open", Q_NULLPTR));pushButton->setText(QApplication::translate("QtGuiDllDemoClass", "\346\216\247\344\273\266", Q_NULLPTR));pushButton_2->setText(QApplication::translate("QtGuiDllDemoClass", "\347\225\214\351\235\242", Q_NULLPTR));menu->setTitle(QApplication::translate("QtGuiDllDemoClass", "\346\226\207\344\273\266", Q_NULLPTR));} // retranslateUi};namespace Ui {class QtGuiDllDemoClass: public Ui_QtGuiDllDemoClass {}; } // namespace UiQT_END_NAMESPACE #endif // QTGUIDLLDEMO_H

7.按qt給的格式把.h更改之后加到當前類的下面。
在當前工程的類加了ui類的.h文件

#pragma once#include "guidlltest_global.h" #include <QtCore/QVariant> #include <QtWidgets/QAction> #include <QtWidgets/QApplication> #include <QtWidgets/QButtonGroup> #include <QtWidgets/QHeaderView> #include <QtWidgets/QMainWindow> #include <QtWidgets/QMenu> #include <QtWidgets/QMenuBar> #include <QtWidgets/QPushButton> #include <QtWidgets/QStatusBar> #include <QtWidgets/QToolBar> #include <QtWidgets/QWidget>class GUIDLLTEST_EXPORT GuiDllTest { public:GuiDllTest(); };QT_BEGIN_NAMESPACEclass GUIDLLTEST_EXPORT Ui_QtGuiDllDemoClass { public:QAction *actionOpen;QWidget *centralWidget;QPushButton *pushButton;QPushButton *pushButton_2;QMenuBar *menuBar;QMenu *menu;QToolBar *mainToolBar;QStatusBar *statusBar;void setupUi(QMainWindow *QtGuiDllDemoClass);void retranslateUi(QMainWindow *QtGuiDllDemoClass);};namespace Ui {class QtGuiDllDemoClass : public Ui_QtGuiDllDemoClass {}; } // namespace UiQT_END_NAMESPACE

加了ui類的.cpp文件

#include "GuiDllTest.h"GuiDllTest::GuiDllTest() { }void Ui_QtGuiDllDemoClass::setupUi(QMainWindow *QtGuiDllDemoClass) {if (QtGuiDllDemoClass->objectName().isEmpty())QtGuiDllDemoClass->setObjectName(QStringLiteral("QtGuiDllDemoClass"));QtGuiDllDemoClass->resize(1046, 786);actionOpen = new QAction(QtGuiDllDemoClass);actionOpen->setObjectName(QStringLiteral("actionOpen"));centralWidget = new QWidget(QtGuiDllDemoClass);centralWidget->setObjectName(QStringLiteral("centralWidget"));pushButton = new QPushButton(centralWidget);pushButton->setObjectName(QStringLiteral("pushButton"));pushButton->setGeometry(QRect(330, 210, 231, 111));pushButton_2 = new QPushButton(centralWidget);pushButton_2->setObjectName(QStringLiteral("pushButton_2"));pushButton_2->setGeometry(QRect(400, 430, 231, 81));QtGuiDllDemoClass->setCentralWidget(centralWidget);menuBar = new QMenuBar(QtGuiDllDemoClass);menuBar->setObjectName(QStringLiteral("menuBar"));menuBar->setGeometry(QRect(0, 0, 1046, 23));menu = new QMenu(menuBar);menu->setObjectName(QStringLiteral("menu"));QtGuiDllDemoClass->setMenuBar(menuBar);mainToolBar = new QToolBar(QtGuiDllDemoClass);mainToolBar->setObjectName(QStringLiteral("mainToolBar"));QtGuiDllDemoClass->addToolBar(Qt::TopToolBarArea, mainToolBar);statusBar = new QStatusBar(QtGuiDllDemoClass);statusBar->setObjectName(QStringLiteral("statusBar"));QtGuiDllDemoClass->setStatusBar(statusBar);menuBar->addAction(menu->menuAction());menu->addAction(actionOpen);retranslateUi(QtGuiDllDemoClass);QMetaObject::connectSlotsByName(QtGuiDllDemoClass); } // setupUivoid Ui_QtGuiDllDemoClass::retranslateUi(QMainWindow *QtGuiDllDemoClass) {QtGuiDllDemoClass->setWindowTitle(QApplication::translate("QtGuiDllDemoClass", "QtGuiDllDemo", Q_NULLPTR));actionOpen->setText(QApplication::translate("QtGuiDllDemoClass", "open", Q_NULLPTR));pushButton->setText(QApplication::translate("QtGuiDllDemoClass", "\346\216\247\344\273\266", Q_NULLPTR));pushButton_2->setText(QApplication::translate("QtGuiDllDemoClass", "\347\225\214\351\235\242", Q_NULLPTR));menu->setTitle(QApplication::translate("QtGuiDllDemoClass", "\346\226\207\344\273\266", Q_NULLPTR)); } // retranslateUi

8.重新生成解決方案，就在當前目錄下生成一個dll文件和lib文件，按正常類調用就可以了。

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