fix android build

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "modules/SingleApplication"]
 	path = modules/SingleApplication
 	url = https://github.com/itay-grudev/SingleApplication.git
+[submodule "modules/qt-android-cmake"]
+	path = modules/qt-android-cmake
+	url = https://github.com/maz-1/qt-android-cmake

CMakeLists.txt

@@ -123,10 +123,20 @@ if(USE_SINGLE_APP)
     include_directories(${CMAKE_CURRENT_SOURCE_DIR}/modules/SingleApplication)
 endif()
 
-add_executable(${PROJECT_NAME}
-                ${DUKTO_HDR}
-                ${DUKTO_SRC}
-                ${DUKTO_RESOURCES})
+if(ANDROID)
+    add_library(${PROJECT_NAME} SHARED
+                    ${DUKTO_HDR}
+                    ${DUKTO_SRC}
+                    ${DUKTO_RESOURCES})
+    include(modules/qt-android-cmake/AddQtAndroidApk.cmake)
+    add_qt_android_apk(${PROJECT_NAME}_apk ${PROJECT_NAME})
+else()
+    add_executable(${PROJECT_NAME}
+                    ${DUKTO_HDR}
+                    ${DUKTO_SRC}
+                    ${DUKTO_RESOURCES})
+endif()
+
 
 if(USE_SINGLE_APP)
     add_dependencies(${PROJECT_NAME} SingleApplication)
@@ -144,6 +154,9 @@ find_program(WINDEPLOYQT_EXECUTABLE windeployqt HINTS "${_qt_bin_dir}")
 find_program(MACDEPLOYQT_EXECUTABLE macdeployqt HINTS "${_qt_bin_dir}")
 
 if(WIN32)
+    set_target_properties(${PROJECT_NAME} PROPERTIES
+        WIN32_EXECUTABLE True
+    )
     target_link_libraries(${PROJECT_NAME} Ws2_32 ole32 user32)
     if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
         # Visual Studio C++

main.cpp

@@ -26,10 +26,10 @@
 #include "duktowindow.h"
 
 #ifdef SINGLE_APP
-#include <singleapplication.h>
-#ifdef Q_OS_WIN
-#include <windows.h>
-#endif
+    #include <singleapplication.h>
+    #ifdef Q_OS_WIN
+        #include <windows.h>
+    #endif
 #endif
 
 int main(int argc, char *argv[])
@@ -41,6 +41,8 @@ int main(int argc, char *argv[])
     qputenv("QSG_RHI_BACKEND", "gl");
 #endif
 
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+
 #ifndef SINGLE_APP
     QApplication app(argc, argv);
 #else
@@ -54,7 +56,7 @@ int main(int argc, char *argv[])
         return 0;
     }
 #endif
-    
+
     QCommandLineParser parser;
     parser.setApplicationDescription("Dukto is a simple, fast and multi-platform file transfer tool for LAN users.");
     parser.addHelpOption();
@@ -66,11 +68,12 @@ int main(int argc, char *argv[])
 
     GuiBehind gb(&settings);
     app.installEventFilter(&gb);
-    
+
     DuktoWindow viewer(&gb, &settings);
 #ifdef SINGLE_APP
     QObject::connect(&app, &SingleApplication::receivedMessage, [&viewer]()->void {
-        if (viewer.isMinimized()) {
+        if (viewer.isMinimized())
+        {
             viewer.showNormal();
         }
         viewer.activateWindow();
@@ -82,6 +85,6 @@ int main(int argc, char *argv[])
 
     gb.setViewer(&viewer, &tray);
     viewer.setVisible(!parser.isSet(hideOption));
-    
+
     return app.exec();
 }