Solution to qt5.12 unable to input Chinese (unable to switch Chinese input method) in deepin system

One . What happened

         The process was installed yesterday deepin System to QT Development , Everything is going well , But when inputting Chinese , You can't input any switch , That is to say, the Chinese input method cannot be switched , The input method status changes to the default keyboard type and any operation of switching input methods does not work  . I had a headache all afternoon yesterday , Can't do it .

Two . Why is this problem ？

         For the use of fcitx Framework of the Chinese input method , Need to compile manually fcitx-qt5 Generate Chinese input method Library file ,qt There is no configuration in it , Need to be in qt You can only configure these files in some directories of .

         Check the information and see that many people use git clone github Download under fcitx-qt5.git, But my computer doesn't work

        git clone https://github.com/fcitx/fcitx-qt5.git

            After returning home, I will use my own computer to remotely log in to my Alibaba cloud server , Use this command remotely to download , When the download is complete , I copy the downloaded file to my computer , And then upload QQ mailbox .

         I put this plug-in directly under the network disk link ： There is a problem like me , Just download it directly

         link : https://pan.baidu.com/s/1gP1LQr_W7lR9O7x4wcgYcA

         Extraction code : 8ypp 

         After returning to the company the next day , Log in right now QQ mailbox , take fcitx-qt5, Download to deepin In the system , Follow these steps to compile ：

For the use of fcitx Chinese input method of frame （ Such as Sogou input method ）, Need to compile manually fcitx-qt5 Generate the library file of Chinese input method

3、 ... and . How to solve it ？

1. install cmake, Used to compile fcitx-qt5

First, check whether it is installed cmake:

cmake --verison

If the version information is displayed, it indicates that it has been installed , Then you can go to the next step ; If not installed , First install ：

sudo apt install cmake

2. install fcitx-libs-dev

sudo apt install fcitx-libs-dev

3. Download the fcitx-qt5 after , decompression fcitx-qt5

4. Get into fcitx-qt5 Unpack the directory

cd fcitx-qt5

5. Set up qmake environment variable

export PATH="$HOME/Qt/Qt5.12.0/5.12.0/gcc_64/bin":$PATH

Be careful ： The specific path is determined according to your installation directory

6.  Generate makefile file

cmake .

If the result shown in the figure below appears , It was successful , You can skip the following steps

If something goes wrong , Pay attention to the error message

  For me, the file in the path shown in the figure is missing libcomposeplatforminputcontextplugin.so

Let's go directly to the system to find , See if there are... Anywhere else

use find command

find / -name libcomposeplatforminputcontextplugin.so

  And will find libcomposeplatforminputcontextplugin.so Copy the library file to , The error prompt is in the missing path

Re execution

cmake .

Look at the error prompt , What's less , Use... In the system directory find Just find the command , Until no error is reported , As shown in the figure below

That's what I mean cmake success , Successfully generated makefile file

7. compile

make

 

Can compile to 100%, The compilation is successful

  We see the ficitx-qt5 The catalog of , The discovery produced qt5 and qt6 Two files of two

  Because I'm using qt5.12.0 Version of Qt, So what I want to use is qt5 In the catalog libfcitxplatforminputcontextplugin.so The library files

 8. copy to Qt In the specified two directories

cp -f libfcitxplatforminputcontextplugin.so /home/yicaobao/Qt5.12.0/5.12.0/gcc_64/plugins/platforminputcontexts/

cp -f libfcitxplatforminputcontextplugin.so /home/yicaobao/Qt5.12.0/Tools/QtCreator/lib/Qt/plugins/platforminputcontexts

Be careful ： The specific path is determined according to your installation directory

ok, Everything is open !

9. restart Qt, that will do