Interface NavigationView.PoppedCallback

All Superinterfaces:

FunctionPointer

Enclosing class:

NavigationView

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface NavigationView.PoppedCallback
extends FunctionPointer

Functional interface declaration of the PoppedCallback callback.

Since:

1.4

See Also:

• run(NavigationPage)

Method Summary

Modifier and Type	Method	Description
void	run(@Nullable NavigationPage page)	Emitted after page has been popped from the navigation stack.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.
default void	upcall(MemorySegment sourceNavigationView, MemorySegment page)	The upcall method is called from native code.

Method Details

run

void run(@Nullable NavigationPage page)

Emitted after page has been popped from the navigation stack.

See NavigationView.pop().

When using NavigationView.popToPage(NavigationPage) or NavigationView.popToTag(String), this signal is emitted for each of the popped pages.

Since:

1.4

upcall

default void upcall(MemorySegment sourceNavigationView,
 MemorySegment page)

The upcall method is called from native code. The parameters are marshaled and run(NavigationPage) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer