Android Question SetVisibleAnimated works only once?

JeffT

Member
Licensed User
In a routine that performs an undo, by opening a 'last known good' file from internal storage

I use

B4X: 
Pane1.SetVisibleAnimated (500,false)

'do the file related work

Pane1.SetVisibleAnimated (500,True)

But the Pane does not become visible on the last line.

If I call the routine a second time, the Pane does re-appear.
What have I missed?
 
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JeffT

Member
Licensed User
1. I hope that Pane1 type is B4XView.

It is

2. You forgot that SetVisibleAnimated is an async method:

Not forgot - not aware.
Im guessing that the effect is that the first call does what it likes, and the second call may be trying to do what it does , while the first is still operating.
Is there a way to make one wait for the other to complete, or to call it with a delayed start?
 
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JeffT

Member
Licensed User
B4X: 
Pane1.SetVisibleAnimated (500,false)

'do the file related work
Sleep(500)
Pane1.SetVisibleAnimated (500,True)

Sadly, same result.
There is a small delay, the pane fades to black, but doesnt come back.

I'll think of some other way to show busy.
 
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JohnC

Expert
Licensed User
Longtime User
Try changing the Sleep(500) to sleep (1000) and see if it works.

My hunch is that the first animation has to complete before a new one will work, and setting the animation time to 500ms and the delay to 500ms is to close for comfort.
 
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