andresr-dev

Create a new Data Model file: "CoreDataExample.xcdatamodeld"
Once inside add a new entity and attributes:
 
ENTITIES:
Student
 
ATTRIBUTE:
id: UUID
firstName: String
lastName: String

andresr-dev

import SwiftUI

// MARK: CORE DATA MODEL
/*
 ENTITY: ShipEntity
 
 ATTRIBUTES:
 name: String
 universe: String
 */

andresr-dev

First create your data model file: "CoreDataExample.xcdatamodeld" and add this two entities:

1.
 ENTITY: "CountryEntity"
 ATTRIBUTES:
 shortName: String
 fullName: String
 
 NOTE: While having Country Entity selected, Open Data Model Inspector on the right side of the screen and add "shortName" 
 constraint, this is because this property must be unique.

andresr-dev

First create a data model file: "CoreDataExample.xcdatamodeld", once inside create this entity with this attributes:
ENTITY: "SingerEntity"

ATTRIBUTES:
firstName: String
lastName: String
 
Now let's generate a class of our entity manually so that we don't have to deal with optionals, like this:
1. While having "SingerEntity" selected, open the Data Model inspector on the right side of the screen and change Codegen 
from "Class Definition" to "Manual/None"

andresr-dev

// To test this code: Run the simulator, tap request permission and grant it.
// Now tap schedule notification and lock the screen, the notification should appear in 5 seconds

import SwiftUI
import UserNotifications

struct LocalNotifications: View {
    var body: some View {
        VStack {
            Button("Request Permission") {

andresr-dev

First open Create ML App:
 1. Go to Xcode/Open Developer Tool/Create ML. In the prompt click New Document
 2. Choose a template: "Tabular Regression" in this case and click Next.
 3. Give it a project name "BetterRest" in this case, click Next and save the project.
 
 Now we need to provide training data to our ML, you can use this sample data from Hacking with swift:
 https://github.com/twostraws/HackingWithSwift/blob/main/SwiftUI/project4-files/BetterRest.csv
 This is a spreadsheet with 10.000 samples of 4 values:
 1. When someone want to wakeup
 2. How much sleep they want to have

andresr-dev

func gcd(_ a: Int, _ b: Int) -> Int {
    var a = a
    var b = b
    
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a

andresr-dev

import SwiftUI

extension View {
    @ViewBuilder func phoneOnlyStackNavigation() -> some View {
        if UIDevice.current.userInterfaceIdiom == .phone {
            self.navigationViewStyle(.stack)
        } else {
            self
        }
    }

andresr-dev

// Note: to actually see the result of this code please use the iPhone 13 Pro Max simulator or any Plus device
// Since these are the ones with the largest screens.
import SwiftUI

struct UserView: View {
    var body: some View {
        Group {
            Text("Name: Andrés")
            Text("Country: Colombia")
            Text("Pets: No pets at the moment!")

andresr-dev

// Note: you can change the text size directly from Xcode going to the Environment Override button, on the bottom side of the screen.
struct UserView: View {
    var body: some View {
        Group {
            Text("Name: Andrés")
            Text("Country: Colombia")
            Text("Pets: No pets")
        }
    }
}