virginian | experimental heterogeneous SQL database written to compare | GPU library
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kandi X-RAY | virginian Summary
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QUESTION
I'm trying to detect the overall movement of the panel in respect to the screen, not the movement inside the panel itself, so I can fade away the image when the panel moves up. And bring it back when the panel moves down.
So far I had no luck.
I tried to use GestureDetector onVerticalDragUpdate, but it didn't work either.
Thanks in advance...
Here's my code:-
...ANSWER
Answered 2021-Mar-16 at 17:13If I understand your Question correctly then you need to use onPanelSlide:
callback to report the sliding percentage of your panel.
so in your SlidingUpPannel will be
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