Add sdkVersion() to QNativeInterface::QAndroidApplication

The androidSdkVersion() is probably the most used call from
QtAndroidPrivate, so instead of waiting long time for a cross platform
api that could offer this functionality, it's better to have it now
under the NativeInterface.

Task-number: QTBUG-90497
Change-Id: I008d4c77d347d36e0a7e8ca4d6f33f993b02511b
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

src/corelib/kernel/qcoreapplication_platform.h

@@ -57,6 +57,7 @@ struct Q_CORE_EXPORT QAndroidApplication
     QT_DECLARE_NATIVE_INTERFACE(QAndroidApplication)
     static jobject context();
     static bool isActivityContext();
+    static int sdkVersion();
 };
 #endif
 }

src/corelib/platform/android/qandroidnativeinterface.cpp

@@ -82,4 +82,15 @@ bool QNativeInterface::QAndroidApplication::isActivityContext()
     return QtAndroidPrivate::activity();
 }
 
+/*!
+    \fn int QNativeInterface::QAndroidApplication::sdkVersion()
+
+    Returns the Android SDK version. This is also known as the API level.
+
+    \since 6.2
+*/
+int QNativeInterface::QAndroidApplication::sdkVersion()
+{
+    return QtAndroidPrivate::androidSdkVersion();
+}
 QT_END_NAMESPACE