I didn't say anything about C++ libraries, at least in case of my dream thing.
The problem with Qt is that it draws its own widgets. It is close on some platforms like with Gtk+ theme, but most people report how it does not look native on their platform. Also on Android it has to use JNI and NDK so it's not native to Android as DEX/Java is. On Windows I believe that CLR or at least COM (you can do it even C, but that requires effort) is a native platform.
Qt is from a time when C was kinda native for everyone. It's a different world now for better or worse.
Of course Qt has some advantage over one of many other widget toolkits drawing their own widgets. It hooks to native accessibility APIs for example. Other than that: dlangui, Lambda Native or even SDL2 can be seen as contenders.
I see the limitation.. but I must be missing some subtle distinction
b/c isn't Flutter doing essentially the same thing under the hood?
"The engine’s C/C++ code is compiled with Android’s NDK, and any Dart code is AOT-compiled into native code. The app runs using the native instruction set (no interpreter is involved)."
"The engine’s C/C++ code is compiled with LLVM, and any Dart code is AOT-compiled into native code. The app runs using the native instruction set (no interpreter is involved)."
It does the same thing, that's why my dream is not fulfilled by Dart. Or may even have worse accessibility, but I don't know.
If it would be compiled to DEX (native for Android APIs) or JVM (compilable to DEX) byte code it would be different. It would at least enable use of it to make such a dream.
I posted this earlier,
I think accessibility was a requirement for an internal google flutter app, have you had a chance to look at https://flutter.io/accessibility/
The problem with Qt is that it draws its own widgets. It is close on some platforms like with Gtk+ theme, but most people report how it does not look native on their platform. Also on Android it has to use JNI and NDK so it's not native to Android as DEX/Java is. On Windows I believe that CLR or at least COM (you can do it even C, but that requires effort) is a native platform.
Qt is from a time when C was kinda native for everyone. It's a different world now for better or worse.
Of course Qt has some advantage over one of many other widget toolkits drawing their own widgets. It hooks to native accessibility APIs for example. Other than that: dlangui, Lambda Native or even SDL2 can be seen as contenders.