Re: backKey with DataGrid

[Tore Nilsen via use-livecode]

This is a shot in the dark but this may have to do with the fact that once the 
dataGrid is in focus the template stack for the dataGrid becomes the recipient 
of your backKey message. Have you tried to add a backKey message to the 
template stack, and tweaking it to reference the button of the card in the 
original stack?

Best regards
Tore Nilsen


> 7. okt. 2020 kl. 00:19 skrev Dan Friedman via use-livecode 
> :
> 
> Here's a weird one...   I have a card with a number of objects on it.  There 
> is a button named "Back" which takes you back to card X.  There is also a 
> dataGrid.  In the mainStack script, I have a this backKey command:
> 
> on backKey
>  //this is sent only on Android when the user presses the hardware "back" key
>  if there is a btn "Back" of this card then
>send "mouseUp" to btn "Back" of this card in 1 tick
>  end if
> 
>  exit to top
> end backKey
> 
> When the card opens, and you tap the backKey (on an android device of 
> course), it works great!   Now, if I scroll the dataGrid, the backKey message 
> fails.  If I then tap any other control on the screen (not the dataGrid), 
> then the backKey message works again.  This is true even if the dataGrid has 
> no data (ie.:  set the dgData of grp "myDataGrid" to "").
> 
> I have verified that there is only 1 button named "Back" on the entire card 
> (including the template for the dataGrid).
> 
> When I say the "backKey" message fails, what really happens is the statement  
> "if there is a btn "Back" of this card" does result as true, but the sending 
> of the "mouseUp" message isn't sent (or perhaps it's not received).  Also, if 
> I just tap the "Back" button it does go back.
> 
> Any ideas?
> 
> -Dan
> 
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backKey with DataGrid

[Dan Friedman via use-livecode]

Here's a weird one...   I have a card with a number of objects on it.  There is 
a button named "Back" which takes you back to card X.  There is also a 
dataGrid.  In the mainStack script, I have a this backKey command:

on backKey
  //this is sent only on Android when the user presses the hardware "back" key
  if there is a btn "Back" of this card then
send "mouseUp" to btn "Back" of this card in 1 tick
  end if
  
  exit to top
end backKey

When the card opens, and you tap the backKey (on an android device of course), 
it works great!   Now, if I scroll the dataGrid, the backKey message fails.  If 
I then tap any other control on the screen (not the dataGrid), then the backKey 
message works again.  This is true even if the dataGrid has no data (ie.:  set 
the dgData of grp "myDataGrid" to "").

I have verified that there is only 1 button named "Back" on the entire card 
(including the template for the dataGrid).

When I say the "backKey" message fails, what really happens is the statement  
"if there is a btn "Back" of this card" does result as true, but the sending of 
the "mouseUp" message isn't sent (or perhaps it's not received).  Also, if I 
just tap the "Back" button it does go back.

Any ideas?

-Dan

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