There must be an option (if there is, I can't find it...) to keep the screen on. A book is usually read aloud by a narrator, the kids listen and might not touch the screen for a while. Then, suddenly, the screen turns off, and when awaken (by one of the parents...), the page reloads and narrations starts over from the beginning. This is a big issue, in my eyes.
If there's a way around that, please advise.

Sure, that's what I meant.
BTW, I found a way to do it in Java, but not Javascript:
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

Many games do keep the screen on at all times. see Candy Crash for example. Obviously, it consumes a lot of power, but at least for a self-reading book it makes sense (to me).

Hi,
Fast forward 8 years. Is there now an option I can use for that?
If not, can you suggest JS code that will work for both iOS and Android?
I tried this (only on Android), but it didn't do the trick:

async function preventScreenTimeout() {
try {
if ('wakeLock' in navigator) {
const wakeLock = await navigator.wakeLock.request('screen');
console.log('Screen Wake Lock is active');
return wakeLock;
}
} catch (err) {
}
}

// To release the wake lock when no longer needed
async function releaseScreenTimeout(wakeLock) {
if (wakeLock) {
await wakeLock.release();
console.log('Screen Wake Lock is released');
}
}

// Example usage
let wakeLock = null;

document.addEventListener('visibilitychange', async () => {
if (document.visibilityState === 'visible') {
wakeLock = await preventScreenTimeout();
} else {
await releaseScreenTimeout(wakeLock);
}
});

What do you mean by "native app"? I've exported to Android for testing, via Wi-Fi, and the screen turns off per my phone's settings (after 30sec). What am I missing?

Ok, thanks. Let me know when, and I'll do the testing.

Hi, any update on this matter? that's the only thing standing between my app and the app stores ...
BTW, I've noticed 2 things:
First, even with PubReader, the screen dims after the set screen timeout. Still, it doesn't turn the screen off and stops reading, as in the native app.
Second, if I turn on (in Android, not sure about iOS) Settings --> Advanced --> Motions and gestures --> Keep screen while viewing, the problem is solved. Perhaps that could be done automatically be the app (even if you'll need to ask the user's permissions)?

Perfect, thanks. It seems to work, not even dimming (at least on my Android phone)!
I'll do the testing on iPhone next week.
Thanks again for the quick resolution
Ranco