Android Hardware Keys

How do I...?
1

Hello, is there a way to query the volume up and down button on mobile devices?
Greetings Markus

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2

Hat niemand eine Idee?

3

Tried to solve the problem with Javascript. I can define the volume up and down buttons. But since I’m not very familiar with Javascript (I only know the basics of C++) I can’t query the keys. Maybe someone can help.
I have a screenshot. I have problems with the last query.
The code works except for the last query. This shows me the fact that when I start it on my phone, the default function of the down key is non-functional.

I just have no idea how to query it in javascript.

VolumeDownKeyDown
VolumeDownKeyDown1412Ă—792 107 KB

4

The scene variable starts with 0.
I only used it for testing.
Perhaps one could create an extension from “onVolumeDownKeyDown” and from “volumeupKeyDown”.
Or maybe you could extend the BackButton function.

5

Hello, recently solved the problem myself to some extent. Have a javascript code that queries the “Volume Up button” and “Volume down button”.
In the project I created two global variables for this.
“var_VolumeDown” and “var_VolumeUP”
By pressing one of the two keys, the result “1” is returned, i.e. key pressed.

Here is the javascript code:
(Actually simple, maybe someone wants to write an official extension out of it…)

// -- Volume down button --
document.addEventListener("volumedownbutton", onVolumeDownKeyDown, false);


function onVolumeDownKeyDown() {
    // Handle the volume down button
    runtimeScene.getGame().getVariables().get("var_VolumeDown").setNumber(1);
    
}

// -- Volume up button  --
document.addEventListener("volumeupbutton", onVolumeUpKeyDown, false);

function onVolumeUpKeyDown() {
    // Handle the volume up button
   runtimeScene.getGame().getVariables().get("var_VolumeUP").setNumber(1);
   
}
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6

Here is a small example.
Sorry the text is in German.

ScreenRecorder_20220927-152017

7

p.s. needed the functionality for an Android tool that should appear in the Play store soon.
Of course nothing speaks against using it in games.
Maybe I could help someone with this post.

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