How to import custom qml components via import <Module>.<Submodule> statements？>?

[Kamichanw]

I've written a custom qml UI library named KmcUI for instance. Here is directory strucuture.

Myproject
 |- KmcUI
     |- Controls
          |- MyComponent.qml 
     |- qmldir
|- main.qml

And here is the content of qmldir

module Kmc.Controls
MyComponent 1.0 MyComponent.qml 

I also set QML_IMPORT_PATH to $$PWD/KmcUI in .pro file.
However, when I use import KmcUI.Controls in main.qml, it still shows QML module not found.

[Kamichanw]

I finally found the solution!!! Everyone who is confused by Qt documentation should read my answer.

You should do the following:

1. Write qmldir for every sub directory, just like I described in question.
2. Add all of the qmldirs and .qml files to a .qrc file that located in the outermost directory, in my case, is .\KmcUi. Don't forget to change the default prefix \ to the module name, in my case, is KmcUI.
3. Create a .pri file, just include the .qrc just created in step 3. This step is optional, the most important is ensuring add .qrc in your .pro.
4. In your own .pro file, include .pri or .qrc created in step 3 or step 2.
5. Call engine.addImportPath("qrc:/"). You can also add following line to your .pro file. Then use INSTALL_PATH(engine).

DEFINES += INSTALL_PATH\\(E\\)=\"E.addImportPath(QStringLiteral(\\\"qrc:/\\\"));\"

6. Import your module in your own qml file!

[Kamichanw]

I have posted the same quesiton here. Anyone can help?

[Kamichanw]

I finally found the solution!!! Everyone who is confused by Qt documentation should read my answer.

You should do the following:

1. Write qmldir for every sub directory, just like I described in question.
2. Add all of the qmldirs and .qml files to a .qrc file that located in the outermost directory, in my case, is .\KmcUi. Don't forget to change the default prefix \ to the module name, in my case, is KmcUI.
3. Create a .pri file, just include the .qrc just created in step 3. This step is optional, the most important is ensuring add .qrc in your .pro.
4. In your own .pro file, include .pri or .qrc created in step 3 or step 2.
5. Call engine.addImportPath("qrc:/"). You can also add following line to your .pro file. Then use INSTALL_PATH(engine).

DEFINES += INSTALL_PATH\\(E\\)=\"E.addImportPath(QStringLiteral(\\\"qrc:/\\\"));\"

6. Import your module in your own qml file!