Quick GUI: Tweak styling for Android

CMakeLists.txt

@@ -149,6 +149,11 @@ endif()
 find_package(passwordfile 3.1.0 REQUIRED)
 use_password_file()
 
+# require Qt AndroidExtras
+if(ANDROID AND QUICK_GUI)
+    list(APPEND ADDITIONAL_QT_MODULES AndroidExtras)
+endif()
+
 # include modules to apply configuration
 if(WIDGETS_GUI OR QUICK_GUI)
     include(QtGuiConfig)

quickgui/initiatequick.cpp

@@ -9,6 +9,7 @@
 
 #include <QGuiApplication>
 #include <QQmlApplicationEngine>
+#include <QQmlContext>
 #include <QSettings>
 #include <QTextCodec>
 #include <QIcon>
@@ -18,10 +19,27 @@
 #include <QApplication>
 #endif
 
+#ifdef Q_OS_ANDROID
+#include <QtAndroid>
+#endif
+
 using namespace ApplicationUtilities;
 
 namespace QtGui {
 
+#ifdef Q_OS_ANDROID
+namespace Android {
+namespace WindowManager {
+namespace LayoutParams {
+enum RelevantFlags {
+    TranslucentStatus = 0x04000000,
+    DrawsSystemBarBackgrounds = 0x80000000,
+};
+}
+}
+}
+#endif
+
 int runQuickGui(int argc, char *argv[], const QtConfigArguments &qtConfigArgs, const QString &file)
 {
     // init application
@@ -63,11 +81,21 @@ int runQuickGui(int argc, char *argv[], const QtConfigArguments &qtConfigArgs, c
     // init Quick GUI
     QQmlApplicationEngine engine;
     Controller controller(settings, file);
-    QQmlContext *const context(engine.rootContext());
+    auto *const context(engine.rootContext());
     context->setContextProperty(QStringLiteral("userPaths"), userPaths);
     context->setContextProperty(QStringLiteral("nativeInterface"), &controller);
     engine.load(QUrl(QStringLiteral("qrc:/qml/main.qml")));
 
+#ifdef Q_OS_ANDROID
+    QtAndroid::runOnAndroidThread([=]() {
+        QAndroidJniObject window = QtAndroid::androidActivity().callObjectMethod("getWindow", "()Landroid/view/Window;");
+        window.callMethod<void>("addFlags", "(I)V", Android::WindowManager::LayoutParams::DrawsSystemBarBackgrounds);
+        window.callMethod<void>("clearFlags", "(I)V", Android::WindowManager::LayoutParams::TranslucentStatus);
+        window.callMethod<void>("setStatusBarColor", "(I)V", QColor("#2196f3").rgba());
+        window.callMethod<void>("setNavigationBarColor", "(I)V", QColor("#2196f3").rgba());
+    });
+#endif
+
     // run event loop
     return a.exec();
 }

resources/qml.qrc

@@ -1,4 +1,7 @@
 <RCC>
+    <qresource prefix="/">
+        <file>qtquickcontrols2.conf</file>
+    </qresource>
     <qresource prefix="/qml">
         <file alias="main.qml">../qml/main.qml</file>
         <file alias="BasicDialog.qml">../qml/BasicDialog.qml</file>

resources/qtquickcontrols2.conf

@@ -0,0 +1,8 @@
+[Material]
+Primary=#2196F3
+Accent=#2196F3
+Theme=System
+
+[Universal]
+Accent=#2196F3
+Theme=System