draggableInClosed property
When this is set to true, the panel will be draggable, even when panel is closed. This also means that content behind the panel will not be able to receive gestures. (e.g., button taps).
In most cases, this should not be used, as the panel must be removed from the widget tree OR setting this option to 'false' after some interaction, to allow normal user interaction behind the panel.
Can be used to show user some alert dialog like things, where user has to make a choice and this blocks other interaction.
This will not work when panel is in PanelState.dismissed state.
This takes precedence over effectInCollapsedMode when applying shadowColor.
Default : false
Implementation
final bool draggableInClosed;