How to stop an App closing with Swipe right?

[Guy_]

Is there a way to disable the Swipe right action from accidentally closing an App?

[Guy_]

How can you prompt the user before closing and if he refuses the close, to return to the App and continue?

[Guy_]

Does anyone know how - its far too easy to accidentally swipe right and the App just closes immediately, can it be stopped from doing this?

One can stop the back button doing this but what is the point if a simple swipe overrides that protection.

[Guy_ · Accepted solution]

Provided by @Gondwana to intercept Swipe exit

document.addEventListener("beforeunload", (evt) => {
  // prevent the actual swipe unload event
  evt.preventDefault();
  background.x = 0;
});

requires

<svg id="background">

[ac_devel]

How can I leverage this code so that when my user swipes right, I don't get a black background but the text(i.e) I was showing before? 

[Gondwana]

Are you using document.location.assign() and document.history.back()?

[ac_devel]

Actually no. Is there some example of it somewhere? 

[Gondwana]

https://dev.fitbit.com/blog/ Fitbit OS SDK 5.0.

The reference doco might also help.

You may find that you need an opaque background to one of your views, so that two don't get displayed simultaneously.

[ac_devel]

Thanks! I'll try that. I just tried the document.location.assign and it messes up the whole view and reactivates all components I have previously deactivated. 

[Gondwana]

I'm assuming you're using multiple views (documents)...

[ac_devel]

No. I'm using just one but I might have to transition to multiple views that are dependent to the situation the app is in when swipe happens. 

[Gondwana]

Oh; this might be overkill then. You may be able to do what you want just by using an animation (see that blog post).

[ac_devel]

That worked great!! Thanks! I was so worried I have to do multiple views. I'm surely considering re-doing the app and give it a more sensible structure since it's becoming bigger than it how it was conceived. Thanks!! 

[Gondwana]

No worries. I shouldn't have assumed multiple views. I doubtless did so because I'm using them myself at the moment.