Android Question Still LostFocus

[LucaMs]

I've looked everywhere, on the site and on Web, but I can not find a way to get the LostFocus (HasFocus = False) when the view that gets the focus has not an editable text, such as buttons, imageviews, ...

 

[stevel05]

Have you tried the Reflection library and the SetOnFocusListener?

 

[LucaMs]

Yes, I remember and found your post, Steve.

But there are two problems:
1) The button is in the Pressed state
2) the button does not get the click, it must be pressed twice

 

[stevel05]

A button wouldn't normally take the focus, so if you make it focusable, the first click is consumed by the focus.

Can you explain your intended usage, there may be an other way to achieve what you're after.

 

[LucaMs]

The feature that I would get is simple, in theory .

Let's say I have a EditText; the user enters text and then press the OK button.

It is obvious that I could check the contents entered in the EditText inside the btnOK_Click event, but it is just an example to say that when the user presses OK, the event EditText_FocusChanged does not fire.

 

[thedesolatesoul]

Isnt that because the Edit text still has focus even on the button click? The button wouldnt normally take focus.

 

[stevel05]

Where does the Focus go once OK is pressed?

 

[stevel05]

Isnt that because the Edit text still has focus even on the button click? The button wouldnt normally take focus.

Yes, that's here I was going

 

[thedesolatesoul]

Yes, that's here I was going

I know

 

[LucaMs]

    Private Sub TextBox1_LostFocus(sender As Object, e As System.EventArgs) Handles TextBox1.LostFocus
    If TextBox1.Text.Length = 0 Then
        MessageBox.Show("Invalid value")
        TextBox1.Focus()
    End If
End Sub

 

[stevel05]

As thedesolatesoul said, pressing the OK button in an edittext doesn't necessarily move the focus, unless there is another focusable view for it to go to and you haven't set force done on the keyboard.

 

[thedesolatesoul]

One trick is to keep an edittext off screen, and request focus to it.

 

[LucaMs]

One trick is to keep an edittext off screen, and request focus to it.

From? So I need to call xxx_request_focus inside the button_click event (and in all views for each EditText).
In this case, you might as well write:
EditText1_FocusChanged (True)

In VB.Net, buttons receive focus, same as other not editable controls

 

[stevel05]

If you want the buttons to be focusable you can set it using JavaObject:

DIm JO AS JavaObject = Button1
JO.RunMethod("setFocusable",Array As Object(True))

Or

DIm JO AS JavaObject = Button1
JO.RunMethod("setFocusableInTouchMode",Array As Object(True))

In this case, you might as well write:
EditText1_FocusChanged (True)

You'd probably be better off using the TextChanged event

 

[LucaMs]

#3

 

[stevel05]

1) the button is in the focused state, it can have a different graphic (Which may be the same as pressed by default because buttons are not normally focusable) but you can change it using a statelistdrawable if you really want to.

2) see #4

 

[LucaMs]

Please, try to develop a small app which behaves like this in VB.Net

 

[stevel05]

Try this one.

 

[LucaMs]

Same as #13

 

[LucaMs]

I'm sorry, thanks anyway for the attached file, Steve