[Problem] Sometimes when I open the form, the Gesture event does not happen

[kabiri 3]

Sometimes in IOS when I open the form, the Gesture event does not happen.

But in Android this event always happens.

I have a form on which I have placed the GestureManager component

I have selected it in the Touch section and only the Pan option is enabled.

In the event of closing the form, I have acted as follows: Action:=TCloseAction.caFree;

And I create it every time before the show.

In the Gesture event, I have acted like this

  
  if EventInfo.GestureID = igiPan then
  begin
    Handled := True;
    if TInteractiveGestureFlag.gfBegin in EventInfo.Flags then
    begin
      fPanPoint := EventInfo.Location;
    end
    else
    begin
      //
    end;
    if TInteractiveGestureFlag.gfEnd in EventInfo.Flags then
    begin
      //
    end;
  end

But in IOS, this event happens randomly.

Do you know what the problem is?
If the event happens after displaying the form, the event will happen until I close the form.
If the event doesn't happen after displaying the form, the event won't happen until I close the form.

[programmerdelphi2k 237]

have you see the sample on RAD Help ? : Topic "FMXInteractiveGestures (Delphi)" sample to "PAN" ... "Here is the event handler when the GestureID = igiPan"

[kabiri 3]

I wrote a simple program before and it was running well.
I did exactly the same things in the main program, but sometimes when I open the form it works and sometimes it doesn't.

In the main form, there are many layers and a rectangle as a background and a 3D view. Even if I hide all of them and the form remains, there is still a problem (only on IOS) I have a tap event on the form that always works.

I transferred the components of the previous program to the test program, but the test program works without problems.

I have not removed the Gesture event or changed the OnGesture event of the form anywhere in the source.

 

[programmerdelphi2k 237]

if "old layout works", then new should too.

Perhaps some component is in front of another that should receive focus. The hittest is disabled, etc...

[kabiri 3]

I tried that the rest of the controls do not have hittest equal to true.

I assign tap event for the form, which always works even when pan does not work.

When I enable all gestures the event always happens (but GestureID is never igipan)

[kabiri 3]

Because I did not understand the problem, I wrote with the touch event.
Now it works without problems.