How to Handle Physical Camera Button on Android Device

Question

I have a Droid X, which has a physical camera button. I am using the example used here: http://marakana.com/forums/android/examples/39.html

The app sort-of works. The on-screen button captures and displays the preview image. But if I push the physical camera button, the app crashes.

How should I handle this, and more importantly - is this going to cause problems across different devices that do / do not have physical buttons?

Answer 1

You need to override onKeyDown in your Activity

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {

    if(event.getAction() == KeyEvent.ACTION_DOWN)
    {
        switch(keyCode)
        {
        case KeyEvent.KEYCODE_CAMERA:
           // handle the event here
        }
    }

    return super.onKeyDown(keyCode, event);
}