Thank you Dianne. I have another related question. I appreciate if you can help me with that.
Let's say the a button in a tab content currently has focus. When I click the UP button, the tab-widget has the focus. My question is how can the Tabhost knows that The tab-content reaches the end of its focusable control and decide to give tab-widget the focus? Thank you. On Thu, Mar 5, 2009 at 12:06 PM, Dianne Hackborn <[email protected]> wrote: > 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. > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
