SavedStateKt

public static final @NonNull T <T extends Object> read(
    @NonNull SavedState receiver,
    @ExtensionFunctionType @NonNull Function1<@NonNull SavedStateReader, @NonNull T> block
)

Calls the specified function block with a SavedStateReader value as its receiver and returns the block value.

IMPORTANT: The SavedStateReader passed as a receiver to the block is valid only inside that function. Using it outside of the function may produce an unspecified behavior.

public static final @NonNull SavedState savedState(
    @NonNull Map<@NonNull String, Object> initialState,
    @ExtensionFunctionType @NonNull Function1<@NonNull SavedStateWriter, Unit> builderAction
)

Builds a new SavedState with the specified initialState, given as a Map of String keys and Any value.

Allows further modification of the state using the builderAction.

IMPORTANT: The SavedStateWriter passed as a receiver to the builderAction is valid only inside that function. Using it outside of the function may produce an unspecified behavior.

public static final @NonNull T <T extends Object> write(
    @NonNull SavedState receiver,
    @ExtensionFunctionType @NonNull Function1<@NonNull SavedStateWriter, @NonNull T> block
)

Calls the specified function block with a SavedStateWriter value as its receiver and returns the block value.

IMPORTANT: The SavedStateWriter passed as a receiver to the block is valid only inside that function. Using it outside of the function may produce an unspecified behavior.