Support new_as_child and set_bounds on iOS / Android

[lucasmerlin]

I'd like to use egui_wry in my egui app but for that I'd need support for new_as_child on iOS and Android, so I can use set_bounds to integrate the webview with the egui ui.

[amrbashir]

Unfortunately this is not supported since egui runs in a NativeActivity where the webview on Android requires AppCompatActivity

[lucasmerlin]

I'm using egui with GameActivity which is based on AppCombatActivity so I think this should not be a problem. And egui was only an example usecase, I'm sure new_as_child and set_bounds could be useful for things not related to egui.

The bigger question is whether it is possible to implement this or if there is some kind of limitation with iOS and android that makes this impossible.

[amrbashir]

I'm using egui with GameActivity which is based on AppCombatActivity

Nice, didn't know that.

Anyways, we didn't spend time researching it but it should be possible given that android has layouts to support laying widgets on top of each other.