Apple Map -- Swift4

Plist:

Privacy - Location When In Use Usage Description
Privacy - Location Usage Description

Code Implementation:

import UIKit

import CoreLocation

import MapKit

class ViewController: UIViewController , CLLocationManagerDelegate ,MKMapViewDelegate {

    @IBOutlet weak var loca_map: MKMapView!

    let locationMgr = CLLocationManager()

    override func viewDidLoad() {

        super.viewDidLoad()

        loca_map.delegate=self

        loca_map.showsUserLocation=true

        locationMgr.delegate = self

        

        locationMgr.delegate = self;

        locationMgr.desiredAccuracy = kCLLocationAccuracyThreeKilometers;

       

        let authorizationStatus = CLLocationManager.authorizationStatus()

        

        if (authorizationStatus == CLAuthorizationStatus.notDetermined) || (authorizationStatus == nil) {

            locationMgr.requestWhenInUseAuthorization()

        } else {

            locationMgr.startUpdatingLocation()

        }

        

        let coord = CLLocation (latitude: 12.961945, longitude: 80.258784)

        

        let CLLCoordType = CLLocationCoordinate2D(latitude: coord.coordinate.latitude,

                                                  longitude: coord.coordinate.longitude);

        let anno = MKPointAnnotation();

        anno.coordinate = CLLCoordType;

        loca_map.addAnnotation(anno);

        

        // Do any additional setup after loading the view, typically from a nib.

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

        let currentLocation = locations.last!

        print("Current location: \(currentLocation)")

        let viewRegion = MKCoordinateRegionMakeWithDistance(currentLocation.coordinate, 500, 500)

        loca_map.setRegion(viewRegion, animated: false)

    }

}

Universal Linking

Setup

AASA File

- (BOOL)application:(UIApplication *)application continueUserActivity:(NSUserActivity *)userActivity restorationHandler:(void (^)(NSArray *))restorationHandler {

    if ([userActivity.activityType isEqualToString:NSUserActivityTypeBrowsingWeb]) {

        NSString *myUrl = [userActivity.webpageURL absoluteString];

        NSLog(@"myUrl==%@",myUrl);

    }

    return YES;

}

Auto Layout Vs Adaptive Layout

Auto Layout: With Auto Layout, you can define constraints to control how your user interface adapts immediately to any size changes

Adaptive Layout: Design once in common storyboard and use for both iPad and iPhone.

Tutorial Adaptive Layout

Swift4--Tableview

import UIKit

class ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource,UITextFieldDelegate {

    

    private var sampleTbl:UITableView!

    

    

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        return 10

    }

    

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell:UITableViewCell=sampleTbl.dequeueReusableCell(withIdentifier: "identifier")!

        

        

        cell.textLabel?.text="sample done"

        return cell

    }

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

        let alert:UIAlertController=UIAlertController(title:"Test",message:"success",preferredStyle:UIAlertControllerStyle.actionSheet)

        let cancel:UIAlertAction=UIAlertAction(title:"Cancel",style:UIAlertActionStyle.default,handler:nil)

        alert.addAction(cancel)

        self.present(alert, animated: true, completion: nil)

    }

    override func viewDidLoad() {

        super.viewDidLoad()

        

        sampleTbl=UITableView(frame:CGRect(x:20,y:50,width:300,height:300))

        sampleTbl.delegate=self

        sampleTbl.dataSource=self

        sampleTbl.register(UITableViewCell.self, forCellReuseIdentifier: "identifier")

        self.view.addSubview(sampleTbl)

        

        let inptTxt:UITextField=UITextField(frame:CGRect(x:30,y:sampleTbl.frame.maxY+20,width:150,height:50))

        inptTxt.backgroundColor=UIColor.purple

        inptTxt.delegate=self

        self.view.addSubview(inptTxt)

        

        let butAdd:UIButton=UIButton(frame:CGRect(x:inptTxt.frame.origin.x,y:inptTxt.frame.maxY+10,width:200,height:100))

        butAdd.setTitle("Add", for:.normal)

        butAdd.setTitleColor(UIColor.red, for: .normal)

        butAdd.backgroundColor=UIColor.yellow

        butAdd.addTarget(self, action: #selector(ClickActio), for: .touchUpInside)

        self.view.addSubview(butAdd)

        

//        let activityView=UIActivityIndicatorView(activityIndicatorStyle:UIActivityIndicatorViewStyle.gray)

//        activityView.center=self.view.center

//        activityView.hidesWhenStopped=false

//        activityView.startAnimating()

////        activityView.backgroundColor=UIColor(red:(100/255),green:(98/255),blue:(8/255),alpha:1.0)

//        self.view .addSubview(activityView)

       

    }

    @objc func ClickActio(sender:UIButton!) {

        print("add")

    }

    func textFieldDidEndEditing(_ textField: UITextField) {

        textField.resignFirstResponder()

    }

    

Swift 4.0 -- CoreData

https://medium.com/xcblog/core-data-with-swift-4-for-beginners-1fc067cca707

Save:

let appDelegate1=UIApplication.shared.delegate as! AppDelegate

let context=appDelegate1.persistentContainer.viewContext

        let entity=NSEntityDescription.entity(forEntityName: "UserDetails", in: context)

        let objMode=NSManagedObject(entity: entity!, insertInto: context)

        objMode.setValue("asfff",forKey:"userId")

        do {

            try context.save()

        } catch {

            print("Failed saving")

        }

        

Fetch:

        let request = NSFetchRequest<NSFetchRequestResult>(entityName:"UserDetails")

        request.returnsObjectsAsFaults=false

        do {

            let result=try context.fetch(request)

            for data in result as! [NSManagedObject] {

              print(data.value(forKey: "userId") as! String)

            }

            

        } catch  {

             print("Failed")

        }

Study

1) http://abhijeetbargeios.blogspot.in/

2) https://www.codementor.io/mattgoldspink/ios-interview-tips-questions-answers-objective-c-du1088nfb

Generting ipa file to link.

https://www.diawi.com

Download ipa use:
www.i.diawi.com

Convert from Objective c to Swift:
https://objectivec2swift.com/#/home/converter/