Maintain Focus with two textbox and button using Brightscript - focus

Question

I created a one Login Form in the bright script. It's following
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TextBox 1 ' Here the focus is active I set by default in TextBox field active = true
TextBox 2 ' Here the press down key to active true
Button 1 ' Here again press down key to focus true
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Here, I maintain the 3 Items using 3 different key. Now I want to maintain the single key for all 3 items using the down key. Anyone idea to How to maintain Focus using Brightscript.
I used the one function for key handling It's here
function onKeyEvent(key as String, press as Boolean) as Boolean
.................
end function
Now, I maintained the key like
I set TextBox Focus active in ByDefault to XML File.Now I apply Logic to below.
First item focus set on XML file by default.
if key = "down" then
'Here Second item focus
m.keypass.active = true ' Here work successfully First time
if key = "down" and m.keypass.active = true and m.btnsub.active = false then
'Here not maintain successfully its directly call here I press the down key.
m.keypass.active = false
m.btnsub.active = true 'Here third item focus is not maintained
end if
end if
I first-time press the down key It's working fine But its second time How handling the Focus. I used the same thing in Up key.
Here I am using "and" then the issue will happen is there any idea.
Pls, Check Here's an image really what I want to do.
Edited Post:
I handle with up and down key with below code. It's working But, Its only work in a single time.
if key = "up" or key = "down"
if key = "down"
?"here down key"
if m.keypass.id = "instructpass" and m.keypass.active = true
? "down key if part"
m.btngrp.setFocus(true)
m.keypass.active = false
handled = true
else if m.keyid.id = "instructid" and m.keyid.active = true
?" down key else part"
m.keypass.active = true
m.keyid.active = false
handled = true
else if m.btngrp.buttonSelected = 0
m.keyid.active = true
m.btngrp.setFocus(false)
handled = true
end if
handled = true
else if key = "up"
? "here up key"
if m.keypass.active = true
?"up key if part"
m.keyid.active = true
m.keypass.active = false
handled = true
else if m.keyid.active = true
?"id key"
m.btngrp.setFocus(true)
m.btngrp.focusButton = 1
m.keyid.active = false
handled = true
else if m.btngrp.focusButton = 0 and m.btngrp.buttonSelected = 0
?"up key else part"
m.keypass.active = true
m.keypass.setFocus(true)
m.btngrp.setFocus(false)
handled = true
end if
handled = true
end if
handled = true
end if
Thank you.

Answer 1

Check here.
You should use .setFocus(true) and .hasFocus(), which are available to most renderable nodes such as TextEditBox and Button.
E.g.
if key = "down" then
if textBox1.hasFocus() then
textBox2.setFocus(true)
elseif textBox2.hasFocus() then
button.setFocus(true)
end if
end if
if key = "up" then
if button.hasFocus() then
textBox2.setFocus(true)
elseif textBox2.hasFocus() then
textBox1.setFocus(true)
end if
end if