最全解决Qt5无法输入中文的问题

最全解决Qt5无法输入中文的问题https://blog.csdn.net/future_ai/article/details/80059338

https://www.cnblogs.com/liuxuzzz/p/6409294.html

https://my.oschina.net/lieefu/blog/505363?p&＃61;%7B%7BcurrentPage%201%7D%7D

Qt5.3及以前的版本&＃xff1a;

qt creator插件目录&＃xff1a;qt安装目录/Tools/QtCreator/lib/Qt/plugins/platforminputcontexts。

需要的fcitx输入法插件文件&＃xff1a;libfcitxplatforminputcontextplugin.so

解决方法&＃xff1a;

使用dpkg查找插件文件&＃xff0c;fcitx在fcitx-frontend-qt5中&＃xff0c;没有就用apt安装即可。

1. $ dpkg -L fcitx-frontend-qt5 | grep .so
3. /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libfcitxplatforminputcontextplugin.so

然后复制这个文件到QT Creator目录&＃xff1a;

1. $ cd qt安装目录/Tools/QtCreator/lib/Qt/plugins/platforminputcontexts/
2. $ cp /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libfcitxplatforminputcontextplugin.so .
3. $ chmod &＃43;x libfcitxplatforminputcontextplugin.so

然后重启QT Creator即可输入中文。

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编译程序后程序无法输入中文问题&＃xff0c;也是缺少插件的原因。

1. $ cd QT安装目录/5.8/gcc_64/plugins/platforminputcontexts
2. $ cp /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libfcitxplatforminputcontextplugin.so .
3. $ chmod &＃43;x libfcitxplatforminputcontextplugin.so

然后重新编译即可。

Qt5.3以上的版本&＃xff1a;

    Qt5.4以及Qt5.5&＃xff0c;旧办法失效&＃xff0c;原因是Qt5.4后对之前Qt5版本不再二进制兼容&＃xff0c;libfcitxplatforminputcontextplugin.so 需要编译最新的fcitx-qt5。

编译fcitx-qt需要cmake&＃xff0c;安装cmake命令&＃xff0c;如果已经安装&＃xff0c;请略过。

sudo apt-get install cmake

• 安装 fcitx-libs-dev

sudo apt-get install fcitx-libs-dev

• 设置qmake的环境变量&＃xff1a;

export PATH&＃61;"/home/lieefu/Qt5.9.0/5.9/gcc_64/bin":$PATH


• 下载fcitx-libs源码&＃xff1a;

git clone git&＃64;github.com:fcitx/fcitx-qt5.git

• 编译方法&＃xff1a;

1. cd fcitx-qt5
2. cmake .
3. make
4. sudo make install

最后把编译得到 libfcitxplatforminputcontextplugin.so 拷贝到 Qt5.5安装目录的 Tools/QtCreator/bin/plugins/platforminputcontexts

Qt5.6的目录是 Tools/QtCreator/lib/Qt/plugins/platforminputcontexts

大功告成&＃xff01;

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!

遇到上述错误处里方法&＃xff1a;

这个页面 https://launchpad.net/ubuntu/&＃43;source/extra-cmake-modules/1.4.0-0ubuntu1 下载 extra-cmake-modules_1.4.0.orig.tar.xz

 https://launchpad.net/ubuntu/&＃43;source/extra-cmake-modules/5.18.0-0ubuntu1  extra-cmake-modules_5.18.0.orig.tar.xz

解压后:

2. cd extra-cmake-modules-1.4.0
3. cmake .
4. make
5. sudo make install

CMake Error at /home/lieefu/Qt5.5.0/5.5/gcc_64/lib/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake:9 (message):

  Failed to find "GL/gl.h" in "/usr/include/libdrm".

处里方法&＃xff1a;

sudo apt-get install libgl1-mesa-dev libglu1-mesa-dev

-- 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")

处里方法&＃xff1a;

Ubuntu 16.04中可以执行 sudo apt install libxkbcommon-dev 安装

1. wget http://xkbcommon.org/download/libxkbcommon-0.5.0.tar.xz
2. tar xf libxkbcommon-0.5.0.tar.xz
3. ./configure —prefix&＃61;/usr —libdir&＃61;/usr/lib/x86_64-linux-gnu —disable-x11
4. make
5. sudo make install

编译libxkbcommon用到yacc&＃xff0c;如果没有这个命令&＃xff0c;会遇到下面的错误&＃xff0c;yacc在 bison软件包中

 sudo apt-get install bison

 YACC     src/xkbcomp/parser.c

./build-aux/ylwrap: line 176: yacc: command not found

make: *** [src/xkbcomp/parser.c] Error 127