Android: How do I use the volume buttons to initialize an app?

Question

I'm like working on an app that will call home when I press down the volume.

I have a working Dial / Call method. Now I need help figuring out how to get it all encapsulated in a method that will activate when the volume key down is pressed and held.

Any advice would help immensely.

See http://stackoverflow.com/questions/6896746/android-is-there-a-broadcast-action-for-volume-changes — Tim, Jul 01 '12 at 17:25

score 1 · Accepted Answer · answered Jul 01 '12 at 17:27

1

You need to use the onKeyLongPress() method to capture this event, something like this:

@Override
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) 
    {
        //Your Code here
        return true;
    }
    return super.onKeyLongPress(keyCode, event);
}

This only captures the Volum down event, and passes everything else on back to it's normal implentation.

answered Jul 01 '12 at 17:27

Raghav Sood

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I am just having a little bit of an issue with the bottom line of the code: return super.onKeyLongPress(keyCode, event); that whole line of code is highlighted in red for some reason. – a.kollar Jul 02 '12 at 14:46
The problems tab should tell you what it is. If you can post that here I can help you with it. – Raghav Sood Jul 02 '12 at 14:56
Description Resource Path Location Type /WEBBSG4.0/res/layout line 11 Android Lint Problem KeyEvent cannot be resolved to a variable DHD.java /WEBBSG4.0/src/webb/four/zero line 21 Java Problem Syntax error on token "event", delete this token DHD.java /WEBBSG4.0/src/webb/four/zero line 21 Java Problem – a.kollar Jul 02 '12 at 15:01
Have you imported android.view.KeyEvent? – Raghav Sood Jul 02 '12 at 15:05
I have, I just double checked to be sure. – a.kollar Jul 02 '12 at 15:06
Is your second parameter called event? – Raghav Sood Jul 02 '12 at 15:07
Yes it is, is there anything I might be missing? – a.kollar Jul 02 '12 at 15:10
Open a new question for this. I can't say more without seeing the code you're using. – Raghav Sood Jul 02 '12 at 15:17

Android: How do I use the volume buttons to initialize an app?

1 Answers1