查看“模板:Qt使用方法”的源代码

==Qt 版本支持情况==
目前各平台支持的Qt版本如下:
{| class="wikitable"
|-
  | CPU
  | Debian 7
  | Debian 8
  | Debian 9
  | Ubuntu12.04
  | Ubuntu14.04 
  | Ubuntu16.04 
  | Yocto
  | BuildRoot
|-
  | i.Mx6
  | 
  | Qt 5.5.1
  | 
  | 
  | Qt 5.2.1
  | 
  | Qt 5.6.1
  | 
|-
  | i.Mx8
  | 
  | 
  | 
  | 
  | 
  | 
  | Qt 5.12.3
  | 
|-
  | RK3288
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | Qt 5.9.4
|-
  | RK3399
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | Qt 5.9.4
|-
  | RK1808
  | 
  | 
  | 
  |
  | 
  | 
  | 
  | Qt 5.12.2
|}

==Linux搭建Qt==
===Debian、Ubuntu===
====使用apt从官方源中获取====
*Qt5安装
<syntaxhighlight lang="bash">
sudo apt-get update
sudo apt-get install qt5-default
sudo apt-get install qtcreator
</syntaxhighlight>
*Qt4安装
<syntaxhighlight lang="bash">
sudo apt-get install build-essential
sudo apt-get install qt4-dev-tools qt4-doc qt4-qtconfig qt4-demos qt4-designer qtcreator
</syntaxhighlight>
====使用源码编译====
*不建议自行编译，可能会有编译报错、运行报错的问题
*以下是示例方法
<syntaxhighlight lang="bash">
wget http://mirror.bit.edu.cn/qtproject/archive/qt/5.9/5.9.3/single/qt-everywhere-opensource-src-5.9.3.tar.xz
xz -d qt-everywhere-opensource-src-5.9.3.tar.xz
tar xvf qt-everywhere-opensource-src-5.9.3.tar
./configure -confirm-license -opensource -release -make libs -linuxfb -xcb -pch -platform linux-aarch64-gnu-g++ -make examples -nomake tools -nomake tests -prefix /usr/lib/aarch64-linux-gnu/qt5
make -j4
make install
</syntaxhighlight>
*安装路径为-prefix参数后面的文件路径，还需要配置环境变量

===Yocto、Buildroot===
*系统中已经内建Qt，支持的版本如上
*[[Buildroot系统qt使用方法]]
*[[Yocto系统qt使用方法]]

==运行Demo==



<!--
==PC端开发环境搭建==
*主机环境：Ubuntu 16.04
*开发板平台：RK3399 Debian9
===配置编译环境===
*下载源码及交叉编译工具
<syntaxhighlight lang="bash">
wget https://releases.linaro.org/components/toolchain/binaries/6.3-2017.05/aarch64-linux-gnu/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu.tar.xz
xz -d gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu.tar.xz
tar -xvf gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu.tar
</syntaxhighlight>
<syntaxhighlight lang="bash">
wget http://download.qt.io/archive/qt/5.9/5.9.4/single/qt-everywhere-opensource-src-5.9.4.tar.xz
xz -d qt-everywhere-opensource-src-5.9.4.tar.xz
tar -xvf qt-everywhere-opensource-src-5.9.4.tar
</syntaxhighlight>
*配置交叉工具链
<syntaxhighlight lang="bash">
export ARCH=arm64
export CC_PATH=/home/work/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin #交叉编译链路径
export CROSS_COMPILE=${CC_PATH}/aarch64-linux-gnu-
export PATH=${PATH}:${CC_PATH}
</syntaxhighlight>
*查看支持的硬件平台
<syntaxhighlight lang="bash">
ls qt-everywhere-opensource-src-5.9.4/qtbase/mkspecs/
</syntaxhighlight>
*配置qmake.conf,修改如下(路径qt-everywhere-opensource-src-5.9.4/qtbase/mkspecs/linux-aarch64-gnu-g++/qmake.conf)
<syntaxhighlight lang="bash">
#
# qmake configuration for building with aarch64-linux-gnu-g++
#

MAKEFILE_GENERATOR      = UNIX
CONFIG                 += incremental
QMAKE_INCREMENTAL_STYLE = sublib

QT_QPA_DEFAULT_PLATFORM = linux #eglfs 

include(../common/linux.conf)
include(../common/gcc-base-unix.conf)
include(../common/g++-unix.conf)

# modifications to g++.conf
QMAKE_CC                = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc   #填写工具链的绝对路径，下同
QMAKE_CXX               = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++
QMAKE_LINK              = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++
QMAKE_LINK_SHLIB        = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++

# modifications to linux.conf
QMAKE_AR                = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-ar cqs
QMAKE_OBJCOPY           = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-objcopy
QMAKE_NM                = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-nm -P
QMAKE_STRIP             = /opt/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-strip
load(qt_config)
</syntaxhighlight>
*配置configure，需要编译的库
<syntaxhighlight lang="bash">
./configure -v -prefix  /home/me/work-note/linux_app/qt5.9.4 -release -opensource -no-accessibility -xplatform linux-aarch64-gnu-g++ -optimized-qmake -pch -make tools -no-gif -no-glib -no-opengl -no-sse2 -no-sse3 -no-ssse3 -no-sse4.1 -no-sse4.2 -no-avx -make examples  -no-pkg-config -no-separate-debug-info
</syntaxhighlight>
*编译安装Qt
<syntaxhighlight lang="bash">
make && make install
</syntaxhighlight>
===配置板端运行环境===
*进入PC端Qt的安装路径，将文件拷贝到开发板上
<syntaxhighlight lang="bash">
export LD_LIBRARY_PATH=/userdata/qt5.9.4/lib:$LD_LIBRARY_PATH  #开发板上Qt路径
export QT_QPA_PLATFORM_PLUGIN_PATH=/userdata/qt5.9.4/plugins
export QT_QPA_PLATFORM=linuxfb
</syntaxhighlight>
*根据实际情况配置运行环境库
<syntaxhighlight lang="bash">
export QT_QPA_FONTDIR=                #指定qt字体库
export QT_QPA_PLATFORM_PLUGIN_PATH=   #指定qt下的插件
export LD_LIBRARY_PATH=               #指定qt动态库
export QT_QPA_PLATFORM=               #指定屏幕设备文件
</syntaxhighlight>
-->