Question

I’m searching a method to navigate in a app throw all elements with a virtual dpad. But how do I find the nearest neighbor in the directions up, down, left and right?
e.g I have an event received to go down, now I want to set the focus on the button below.

I don’t want to use the definition in the xml files like this:

<LinearLayout android:orientation="vertical" ... >

    <Button android:id="@+id/top" android:nextFocusUp="@+id/bottom" ... />
    <Button android:id="@+id/bottom" android:nextFocusDown="@+id/top" ... />

</LinearLayout>

How can I do that?

Thx.

Answer 1

I found the smart solution (e.g for go down):

bic=new BaseInputConnection(this.getWindow().getDecorView(),false);
KeyEvent event2 = new KeyEvent(0, 0, KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_DOWN,0, KeyEvent.META_SYM_ON, 0, 0, KeyEvent.FLAG_VIRTUAL_HARD_KEY); 

bic.sendKeyEvent(event2);

Thats all, an internal algortihm find the next element in your selected direction