mbrandonw

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

brettohland

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

MichaelKreil

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

swiftui-lab

// 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)

dippnerd

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 {

mhoehle

#############################################################
# 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

IsaacXen

WWDC                                      2007  2008  2009
2010 2011 2012 2013 2014 2015 

kappuchino

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

neilt

//
//  
//	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

AliSoftware

/*:
 This is a concept re-implementation of the @Binding and @State property wrappers from SwiftUI

 The only purpose of this code is to implement those wrappers myself
   just to understand how they work internally and why they are needed,

 ⚠️ This is not supposed to be a reference implementation nor cover all
      subtleties of the real Binding and State types.
    The only purpose of this playground is to show how re-implementing
      them myself has helped me understand the whole thing better