Rapid development of QT applications under Ubuntu14.04

Looking for: Demonstrate how to quickly develop QT applications.

1. Installing the QT Integration environment under Ubuntu

sudo apt-get install qt4-dev-tools qt4-doc qt4-qtconfig Qt4-demos Qt4-designer

2. Write a simple QT program

First: Create an app folder Qtapp and go to the folder

CD ~

mkdir Qtapp

CD Qtapp

To write a program:

Gedit Test1.cpp

The contents are as follows:

#include <QApplication> #include <qlabel>int main (int argc, char *argv[]) {    qapplication app (argc, argv) ;    Qlabel *label = new Qlabel ("Hello qt!");    Label->show ();    

3. Build a platform-agnostic project file

~/qtapp$ qmake-project

Got a project file named: Qtapp.pro

4. Generate the Makefile file
~/qtapp$ qmake Hello.pro

Get makefile File

5. Generate the target file

~/qtapp$ Make

The display information is:

g++-c-m64-pipe-o2-wall-w-d_reentrant-dqt_no_debug-dqt_gui_lib-dqt_core_lib-dqt_shared-i/usr/share/qt4/mkspecs/ Linux-g++-64-i.-i/usr/include/qt4/qtcore-i/usr/include/qt4/qtgui-i/usr/include/qt4-i.-O test1.o test1.cpp
g++-m64-wl,-o1-o Qtapp Test1.o-l/usr/lib/x86_64-linux-gnu-lqtgui-lqtcore-lpthread

Get the Qtapp executable file

6. Implementation of the target file

./qtapp

Visible program window (look carefully on the screen, because it is relatively small)

Rapid development of QT applications under Ubuntu14.04