(ios) fixed no initial notification

[doug-a-brunner]

Platforms affected

• iOS

Motivation and Context

On iOS, no batterystatus events are emitted until the battery level changes. This is a problem because an app should be able to find out what the battery level is without waiting an arbitrarily long time for it to change. (If a device stays plugged in and at 100%, it might never change at all.) Android, by comparison, emits immediately.

Description

Calls updateBatteryStatus every time start runs, so that new listeners get a value immediately.

Testing

Confirmed using that window.addEventListener('batterystatus', v => console.log(v); produces immediate output, which it did not do before the change. Also validated in our app.

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[zabojad]

Any chance to get this merged soon?

[esskar]

agreed; this should be merged asap.

[doug-a-brunner]

Bump: can this be merged in soon?

[ShinZ6]

Will this ever be merged?

[u01jmg3]

@breautek, @erisu, @timbru31: sorry for the prompt but it would be great to get this PR merged. Or feedback on why it can't be. Thanks

[tbordinat]

Same here, would be great !