The comment says is re-directs non-navigation keys to the content.  It isn't
intercepting the other keys, it is ignoring them (returning false).

On Thu, Mar 5, 2009 at 11:42 AM, ying lcs <[email protected]> wrote:

>
> Hi,
>
> I am trying to understand TabHost source code. In the setup() , it has:
>
>  // KeyListener to attach to all tabs. Detects non-navigation keys
>        // and relays them to the tab content.
>        mTabKeyListener = new OnKeyListener() {
>            public boolean onKey(View v, int keyCode, KeyEvent event) {
>                switch (keyCode) {
>                    case KeyEvent.KEYCODE_DPAD_CENTER:
>                    case KeyEvent.KEYCODE_DPAD_LEFT:
>                    case KeyEvent.KEYCODE_DPAD_RIGHT:
>                    case KeyEvent.KEYCODE_DPAD_UP:
>                    case KeyEvent.KEYCODE_DPAD_DOWN:
>                    case KeyEvent.KEYCODE_ENTER:
>                        return false;
>
>                }
>                mTabContent.requestFocus(View.FOCUS_FORWARD);
>                return mTabContent.dispatchKeyEvent(event);
>            }
>
>        };
>
> My question is why it intersects all LEFT/RIGHT/UP/DOWN key event? If
> that is the case, can i still use LEFT/RIGHT/UP/DOWN to navigate
> within the TabContent (let say I have a row of buttons in the
> TabContent. Can I use LEFT/RIGHT/UP/DOWN to move from 1 button to
> another in the TabContent)?
>
> Thank you.
>
> >
>


-- 
Dianne Hackborn
Android framework engineer
[email protected]

Note: please don't send private questions to me, as I don't have time to
provide private support.  All such questions should be posted on public
forums, where I and others can see and answer them.

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