Android ActionBar和蓝牙键盘

Question

My android application uses a bluetooth pedal for hands free navigation. The pedal - an AirTurn BT105 - registers itself as a hardware keyboard.

I can capture the keys sent by the pedal in my activity via dispatchKeyEvent(KeyEvent event) , and everything works OK.

However, even though I return true when I intercept the key, the actionbar is also responding to the key event. In my ActionBar , I have a series of ImageView s for specialised layout purposes. The first ImageView is getting highlighted, as if it receives just an ACTION_DOWN message. In addition, although the layout file specifies that the ImageView should not receive focus, when I look at it through the view hierarchy viewer, they are all stated as being focusable.

Is there a means to stop this behaviour ?

Can I intercept the navigation key events for the ActionBar window as well ?

Note : using native ActionBar in Android 4.4.2

Answer 1

The solution to this "problem", was to manually set the focusable property when building the actionbar menu.

1 - Get the actionview item with

View v = menu.findItem(itemId).getActionView();

2 - After having done your setup and enabled or disabled it, set the focusable values

v.setFocusable(false);
v.setFocusableInTouchMode(false);

When enabled the user will still be able to tap / click on the widget and it will still respond.

I hope this helps someone, eventually