解决Qt5.6无法使用输入法输入中文

最近在ubantu上使用Qt开发进行开发,遇到不能使用输入法输入中文的问题,有点头疼,于是百度谷歌双管齐下,查阅各方资料,综合各种解决方案,kill 了这个问题,在此做下笔记,也希望能够帮助到同样遇到此问题的人。

系统版本: ubantu 16.04 LTS
输入法: 搜狗输入法
本人Qt版本: Qt5.6
解决方法,编译 fcitx-qt5 源码

解决步骤

前期准备工作

安装cmake
1
sudo apt-get install cmake
安装fcitx-libs-dev
1
sudo apt-get install fcitx-libs-dev

设置环境变量(根据个人Qt的安装位置做修改)

1	export PATH="/home/ProgramFiles/Qt5.6.1/5.6/gcc_64/bin":$PATH

下载fcitx-qt5源码(如果显示没有权限获取,及表明没有秘钥,则可以打开这个网址直接到github上去下载压缩包,再解压即可)
1
git clone https://github.com/fcitx/fcitx-qt5

执行编译操作

编译fcitx-qt:

cd fcitx-qt5
cmake .
make
sudo make install

拷贝编译得到的so文件

编译成功之后,将编译得到的“libfcitxplatforminputcontextplugin.so”文件拷贝到Qt的安装目录“Tools/QtCreator/bin/plugins/platforminputcontexts” 或“Tools/QtCreator/lib/Qt/plugins/platforminputcontext”之中,两个目录由安装情况而定,有的会是第一个路径,有的则是第二个路径,然后再继续将这个文件放在“Qt5.6.1/5.6/gcc_64/plugins/platforminputcontexts”之下，最后重启Qt或则重启电脑则可以了。

在此过程中可能遇到的问题

缺少ECMConfig.cmake 和ecm-config.cmake

CMake Error at CMakeLists.txt:8 (find_package):

Could not find a package configuration file provided by "ECM" (requested

version 1.4.0) with any of the following names:

ECMConfig.cmake

ecm-config.cmake

Add the installation prefix of "ECM" to CMAKE_PREFIX_PATH or set "ECM_DIR"

to a directory containing one of the above files. If "ECM" provides a

separate development package or SDK, be sure it has been installed.

-- Configuring incomplete, errors occurred!

下载 extra-cmake-modules_1.4.0.orig.tar.xz

链接: https://launchpad.net/ubuntu/+source/extra-cmake-modules/1.4.0-0ubuntu1

解压后进行如下操作:

1
2
3

cd  extra-cmake-modules-1.4.0
cmake .
sudo make install

缺少Qt5Config.cmake 和qt5-config.cmake

CMake Error at CMakeLists.txt:29 (find_package):

Could not find a package configuration file provided by "Qt5" (requested

version 5.1.0) with any of the following names:

Qt5Config.cmake

qt5-config.cmake

Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"

to a directory containing one of the above files. If "Qt5" provides a

separate development package or SDK, be sure it has been installed.

设置 CMAKE_PREFIX_PATH 环境变量

1	export CMAKE_PREFIX_PATH="/home/cc/ProgramFiles/Qt5.6.1/5.6/gcc_64/lib/cmake/"

缺少xkbcommon

- Found PkgConfig: /usr/bin/pkg-config (found version "0.26")

-- Could NOT find XKBCommon_XKBCommon (missing: XKBCommon_XKBCommon_LIBRARY XKBCommon_XKBCommon_INCLUDE_DIR)

CMake Error at /usr/share/cmake-2.8/Modules/FindPackageHandleStandardArgs.cmake:108 (message):

Could NOT find XKBCommon (missing: XKBCommon_LIBRARIES XKBCommon) (Required is at least version "0.5.0")

进行安装即可.

sudo apt-get install libxkcommon-dev
``` 
编译:
```bash
sudo apt-get install bison

./configure --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --disable-x11

make

sudo make install