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How to execute logic when NavigationLink is tapped?

FB10144005

Currently it doesn't seem possible to execute additional logic when a navigation link is tapped with the new NavigationLink(value:) initializer. When the link is tapped it updates path state all the way back at the root NavigationStack to drive navigation, but there are many times where we need to perform logic after the tap and before the drill down.

For example, after tapping a link we may want to pre-emptively load some data to show on the drill down screen. Or we may want to perform some form validation. Or we may want to track some analytics. This does not seem possible with the current link API.

A workaround is to use Buttons instead of NavigationLinks, but then you lose all of the styling and affordances given to links, such as chevrons when used in List.

If the API for NavigationLink cannot be changed to accomodate for this, perhaps a new ButtonStyle could be introduced that allows regular buttons to take on the sty

FormatStyle in Excruciating Detail

A collection of all of the various options and styles available to you if you'd like to format data into string on iOS 15.

See every option in detail at fuckingformatstyle.com or goshdarnformatstyle.com.

Download the Xcode Playground:

https://github.com/brettohland/FormatStylesDeepDive

WWDC                                2006  2007  2008  2009
2010 2011 2012 2013 2014

Disable:

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist

Enable:

sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist

	// Copyright (C) 2025 Gwendal Roué
	//
	// Permission is hereby granted, free of charge, to any person obtaining a
	// copy of this software and associated documentation files (the
	// "Software"), to deal in the Software without restriction, including
	// without limitation the rights to use, copy, modify, merge, publish,
	// distribute, sublicense, and/or sell copies of the Software, and to permit
	// persons to whom the Software is furnished to do so, subject to the
	// following conditions:
	//

	------------------------------------------------------------------------------------------------
	------------------------------------------------------------------------------------------------
	------------------------------------------------------------------------------------------------
	-------------------------------------------------------------- ------------------ --------------
	------------------------------------------------------------- --- --------- --- ----------
	------------------------- --- ---------------------------- --- --------- -- ---------
	------------- --------- ---- --------------------------- --- -------- ---------
	------------ --------- --- --------------------------- --- ----------- ---- ---
	-------- -- --------- --- ---------------------------- ---------- ---
	--------- ---------- ----------------------------- ---------- -----

	// Author: The SwiftUI-Lab
	// This code is part of the tutorial: https://swiftui-lab.com/swiftui-animations-part4/
	import SwiftUI

	// Sample usage
	struct ContentView: View {
	var body: some View {
	VStack {
	GifImage(url: URL(string: "https://media.giphy.com/media/YAlhwn67KT76E/giphy.gif?cid=790b7611b26260b2ad23535a70e343e67443ff80ef623844&rid=giphy.gif&ct=g")!)
	.padding(10)

	struct MultiSelectPickerView: View {
	//the list of all items to read from
	@State var sourceItems: [String]

	//a binding to the values we want to track
	@Binding var selectedItems: [String]

	var body: some View {
	Form {
	List {

	#############################################################
	# Illustrative script showing how to use SurvStat data
	# to make an age-stratified COVID-19 incidence plot for Germany.
	#
	# Author: Michael Höhle <https://www.math.su.se/~hoehle>
	# Date: 2020-10-07
	# Code License: MIT (https://en.wikipedia.org/wiki/MIT_License)
	#############################################################

	# Load packages

	//
	//
	// NTSolar.swift
	//
	// Created by Neil Tiffin on 5/8/19.
	// Copyright © 2019 Performance Champions, Inc.
	// Copyright © 2019 Neil Tiffin.
	//
	// Released to the public domain by Neil Tiffin, May 2019
	// Released to the public domain by Performance Champions, Inc., May 2019