Add the Android QPA plugin to the CMake build

Had to apply on unused-variable -Werror fix on top.

Change-Id: I4e8decf1e0a1bd56d4168bc2c7153ef3f5e31e13
Reviewed-by: Leander Beernaert <leander.beernaert@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

src/plugins/platforms/CMakeLists.txt

@@ -1,5 +1,5 @@
 if(ANDROID) # AND NOT android-embedded
-#    TODO   add_subdirectory(android)
+    add_subdirectory(android)
 endif()
 
 if(NOT ANDROID)

src/plugins/platforms/android/CMakeLists.txt

@@ -0,0 +1,92 @@
+# Generated from android.pro.
+
+#####################################################################
+## qtforandroid Plugin:
+#####################################################################
+
+add_qt_plugin(qtforandroid
+    TYPE platforms
+    SOURCES
+        androidcontentfileengine.cpp androidcontentfileengine.h
+        androiddeadlockprotector.cpp androiddeadlockprotector.h
+        androidjniaccessibility.cpp androidjniaccessibility.h
+        androidjniclipboard.cpp androidjniclipboard.h
+        androidjniinput.cpp androidjniinput.h
+        androidjnimain.cpp androidjnimain.h
+        androidjnimenu.cpp androidjnimenu.h
+        androidplatformplugin.cpp
+        androidsurfaceclient.h
+        qandroidassetsfileenginehandler.cpp qandroidassetsfileenginehandler.h
+        qandroideventdispatcher.cpp qandroideventdispatcher.h
+        qandroidinputcontext.cpp qandroidinputcontext.h
+        qandroidplatformaccessibility.cpp qandroidplatformaccessibility.h
+        qandroidplatformbackingstore.cpp qandroidplatformbackingstore.h
+        qandroidplatformclipboard.cpp qandroidplatformclipboard.h
+        qandroidplatformdialoghelpers.cpp qandroidplatformdialoghelpers.h
+        qandroidplatformfiledialoghelper.cpp qandroidplatformfiledialoghelper.h
+        qandroidplatformfontdatabase.cpp qandroidplatformfontdatabase.h
+        qandroidplatformforeignwindow.cpp qandroidplatformforeignwindow.h
+        qandroidplatformintegration.cpp qandroidplatformintegration.h
+        qandroidplatformmenu.cpp qandroidplatformmenu.h
+        qandroidplatformmenubar.cpp qandroidplatformmenubar.h
+        qandroidplatformmenuitem.cpp qandroidplatformmenuitem.h
+        qandroidplatformoffscreensurface.cpp qandroidplatformoffscreensurface.h
+        qandroidplatformopenglcontext.cpp qandroidplatformopenglcontext.h
+        qandroidplatformopenglwindow.cpp qandroidplatformopenglwindow.h
+        qandroidplatformscreen.cpp qandroidplatformscreen.h
+        qandroidplatformservices.cpp qandroidplatformservices.h
+        qandroidplatformtheme.cpp qandroidplatformtheme.h
+        qandroidplatformwindow.cpp qandroidplatformwindow.h
+        qandroidsystemlocale.cpp qandroidsystemlocale.h
+    DEFINES
+        QT_STATICPLUGIN
+    INCLUDE_DIRECTORIES
+        ${CMAKE_CURRENT_SOURCE_DIR}
+        ${PROJECT_SOURCE_DIR}/src/3rdparty/android
+    LIBRARIES
+        Qt::AccessibilitySupportPrivate
+        Qt::CorePrivate
+        Qt::EglSupportPrivate
+        Qt::EventDispatcherSupportPrivate
+        Qt::FontDatabaseSupportPrivate
+        Qt::GuiPrivate
+    PUBLIC_LIBRARIES
+        Qt::AccessibilitySupport
+        Qt::Core
+        Qt::EglSupport
+        Qt::EventDispatcherSupport
+        Qt::FontDatabaseSupport
+        Qt::Gui
+        android
+        jnigraphics
+)
+
+#### Keys ignored in scope 1:.:.:android.pro:<TRUE>:
+# DESTDIR = "$$DESTDIR/android"
+# OTHER_FILES = "$$PWD/android.json"
+# PLUGIN_TYPE = "platforms"
+# _LOADED = "qt_plugin"
+# target.path = "$${target.path}/android"
+
+## Scopes:
+#####################################################################
+
+extend_target(qtforandroid CONDITION QT_FEATURE_vulkan
+    SOURCES
+        qandroidplatformvulkaninstance.cpp qandroidplatformvulkaninstance.h
+        qandroidplatformvulkanwindow.cpp qandroidplatformvulkanwindow.h
+    LIBRARIES
+        Qt::VulkanSupportPrivate
+    PUBLIC_LIBRARIES
+        Qt::VulkanSupport
+)
+
+extend_target(qtforandroid CONDITION QT_FEATURE_android_style_assets
+    SOURCES
+        extract.cpp
+)
+
+extend_target(qtforandroid CONDITION NOT QT_FEATURE_android_style_assets
+    SOURCES
+        extract-dummy.cpp
+)

src/plugins/platforms/android/qandroidplatformwindow.h

@@ -65,8 +65,8 @@ public:
     void setParent(const QPlatformWindow *window) override;
     WId winId() const override { return m_windowId; }
 
-    bool setMouseGrabEnabled(bool grab) override { return false; }
-    bool setKeyboardGrabEnabled(bool grab) override { return false; }
+    bool setMouseGrabEnabled(bool grab) override { Q_UNUSED(grab); return false; }
+    bool setKeyboardGrabEnabled(bool grab) override { Q_UNUSED(grab); return false; }
 
     QAndroidPlatformScreen *platformScreen() const;