Using 3rd part static library with QT Creator in Win7

[daynen]

thanks for the answer.

i used compiler from Android NDK and built 'libusb' for Android (i have downloaded the source files from the github). In result i got libs and obj folders with .so files in it.

So, i updated my .pro file accordingly...

unix:!macx: LIBS += -L$$PWD/../../libusb-master/android/libs/armeabi-v7a/ -lusb1.0
 
INCLUDEPATH += $$PWD/../../libusb-master/android/libs/armeabi-v7a
DEPENDPATH += $$PWD/../../libusb-master/android/libs/armeabi-v7a

unix:!macx: LIBS += -L$$PWD/../../libusb-master/android/libs/armeabi-v7a/ -lusb1.0

INCLUDEPATH += $$PWD/../../libusb-master/android/libs/armeabi-v7a
DEPENDPATH += $$PWD/../../libusb-master/android/libs/armeabi-v7a

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...and it finally compiled successfully.

Unfortunately, my program fails to start on Android tablet and QT creator shows the following:

Starting remote process.
 
Unable to start "org.qtproject.example.HidManager".

Starting remote process.

Unable to start "org.qtproject.example.HidManager".

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Checked the logcat and found:

E/dalvikvm(13795): dlopen("/data/app-lib/org.qtproject.example.HidManager-1/libH
idManager.so") failed: Cannot load library: soinfo_link_image(linker.cpp:1635):
could not load library "libusb1.0.so" needed by "libHidManager.so"; caused by lo
ad_library(linker.cpp:745): library "libusb1.0.so" not found

E/dalvikvm(13795): dlopen("/data/app-lib/org.qtproject.example.HidManager-1/libH
idManager.so") failed: Cannot load library: soinfo_link_image(linker.cpp:1635):
could not load library "libusb1.0.so" needed by "libHidManager.so"; caused by lo
ad_library(linker.cpp:745): library "libusb1.0.so" not found

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What could be the suggestions what i am doing wrong here (again)?

BTW, when removing the usage of libusb library from the project, application on android runs successfully.

[Infinity]

Since you're linking dynamically against libusb you need to deploy the library with your application. You can use ANDROID_EXTRA_LIBS to achieve that.
Have a look at the documentation: http://qt-project.org/doc/qt-5/deployment-android.html