bug: Hardware button not triggering with subscribeWithPriority

[Ketec]

this.platform.backButton.subscribeWithPriority(100, () => {
      console.log('#triggered');
})

In any page. Even app.component does not trigger.
Looking at the source, ionic uses 0 and everything higher should overwrite it.

Could easily get this even in using ionic tabs template and adding the code above to the constructor.
It also does it's own stack navigation instead, and does not close the app (instead routes to / or index.php and causes app to reload).

Is the subscription lost somewhere and the handlers in hardware-back-button.ts only got ionic handle?

Tested on Android 9. Cordova event does trigger.

Latest ionic angular and core.

When debugging, I never hit the ev.register(priority, callback); line.

looking at the code it seems to be "ev.detail.register" not "ev.register"

[liamdebeasi]

Thanks for the issue! I am going to close this as a duplicate of #17824.

[ionitron-bot]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.