Another strange thing is that I am not able to build the apk of these apps if I do not remove the Screen2. Ok, there is no way to switch between the 2 screens but this should be only a logical problem or I may suppose that the author wanted to implement a more complex examples and then abandoned the idea. But anyway, why can't be built the apk? I do not find any good explanation.
I am not sure which project you are talking about, if the flipbook one, then I am not sure why you are persisting with this as it doesn't work well.
The last aia I put up was for image swiping using the horizontal pager extension. This only had one screen, and it compiles just fine, installs and runs on Android 11 device.
Not only flipbook.aia, all flipbook "variants" give me the same problem if I do not delete Screen2. Deleting Screen2 solves the problem but I would like to know why, I can not exclude it may happen on other projects
(also if it is the first time happened to me).
In the example aia for FlipBook, one of the blocks on Screen2 is related to a component that does not exist (you will see it has a red border). This is why.
If I develop the code for turnjs to run on a common web browser can I reuse the code also for the web viewer? Should it run on both without any modification or with minimum modifications?