iOS 10 Archives - Page 2 of 2

How to work with IBDesignable and IBInspectable in Swift Language?

February 7, 2021August 8, 2015 by Ashish Kakkad

How to use the @IBDesignable and @IBInspectable?

By giving you a simple example that we can not change the corner radius from the design view. We have to change it run time. If you want to make possible it with design time then you can use the @IBDesignable and @IBInspectable.

So, We are taking an example as IBButtonExtender for this the functionality

Border Color
Border Width
Corner Radius

Create an Custom Class for UIButton with @IBDesignable

@IBDesignable
class ButtonExtender: UIButton {
}

@IBDesignable

class ButtonExtender: UIButton {

}

Create an @IBInspectable for Inspect the element. the Border Color property will be added to the list in the right panel when you create button with this class.

@IBInspectable var borderColor: UIColor = UIColor.white {
    didSet {
        layer.borderColor = borderColor.cgColor
    }
}

@IBInspectable var borderColor: UIColor = UIColor.white {

didSet {

layer.borderColor = borderColor.cgColor

}

Set Initialization functions and other @IBInspectable as above.
You can check the code for the ButtonExtender.swift

IBButtonExtender

Presenting the ButtonExtender for Border Color, Border Width and Corner Radius function with the @IBDesignable and @IBInspectable in the Swift Language.

By making some corner radius and colors, You will get neat and clean output.

Github

Find IBButtonExtender on github 🙂
Check other articles on Swift Language.
All suggestions are acceptable. Put it in the comments!
Happy Coding 🙂

Facebook Login – Swift Language – iOS 10 – Swift 3

February 7, 2021May 30, 2015 by Ashish Kakkad

Facebook Login using custom button in Swift Language
Xcode Version 8
Article is Updated with the Facebook 4.16 SDK [27-September-2016].

Install Pods

platform :ios, '9.0'
target 'FBSwiftLogin' do
  use_frameworks!
  # Pods for FBSwiftLogin
    pod 'FacebookCore'
    pod 'FacebookLogin'
    pod 'FacebookShare'
end

platform :ios, '9.0'

target 'FBSwiftLogin' do

use_frameworks!

# Pods for FBSwiftLogin

pod 'FacebookCore'

pod 'FacebookLogin'

pod 'FacebookShare'

end

Appdelegate.swift

import UIKit
import FBSDKLoginKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
    }
    func applicationWillResignActive(_ application: UIApplication) {
        FBSDKAppEvents.activateApp()
    }
    func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
        return FBSDKApplicationDelegate.sharedInstance().application(application, open: url, sourceApplication: sourceApplication, annotation: annotation)
    }
}

import UIKit

import FBSDKLoginKit

@UIApplicationMain

class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)

}

func applicationWillResignActive(_ application: UIApplication) {

FBSDKAppEvents.activateApp()

}

func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {

return FBSDKApplicationDelegate.sharedInstance().application(application, open: url, sourceApplication: sourceApplication, annotation: annotation)

}

ViewController.swift
Create touch up inside event for custom button like as follows

//
//  ViewController.swift
//  FBSwiftLogin
//
//  Created by Ashish Kakkad on 05/10/16.
//  Copyright © 2016 Kode. All rights reserved.
//
import UIKit
import FBSDKLoginKit
class ViewController: UIViewController {
    var dict : [String : AnyObject]!
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
    @IBAction func btnFBLoginPressed(_ sender: AnyObject) {
        let fbLoginManager : FBSDKLoginManager = FBSDKLoginManager()
        fbLoginManager.logIn(withReadPermissions: ["email"], from: self) { (result, error) in
            if (error == nil){
                let fbloginresult : FBSDKLoginManagerLoginResult = result!
                if fbloginresult.grantedPermissions != nil {
                    if(fbloginresult.grantedPermissions.contains("email"))
                    {
                        self.getFBUserData()
                        fbLoginManager.logOut()
                    }
                }
            }
        }
    }
    func getFBUserData(){
        if((FBSDKAccessToken.current()) != nil){
            FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id, name, first_name, last_name, picture.type(large), email"]).start(completionHandler: { (connection, result, error) -> Void in
                if (error == nil){
                    self.dict = result as! [String : AnyObject]
                    print(result!)
                    print(self.dict)
                }
            })
        }
    }
}

// ViewController.swift

// FBSwiftLogin

// Created by Ashish Kakkad on 05/10/16.

import UIKit

import FBSDKLoginKit

class ViewController: UIViewController {

var dict : [String : AnyObject]!

override func viewDidLoad() {

super.viewDidLoad()

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

}

@IBAction func btnFBLoginPressed(_ sender: AnyObject) {

let fbLoginManager : FBSDKLoginManager = FBSDKLoginManager()

fbLoginManager.logIn(withReadPermissions: ["email"], from: self) { (result, error) in

if (error == nil){

let fbloginresult : FBSDKLoginManagerLoginResult = result!

if fbloginresult.grantedPermissions != nil {

if(fbloginresult.grantedPermissions.contains("email"))

{

self.getFBUserData()

fbLoginManager.logOut()

}

func getFBUserData(){

if((FBSDKAccessToken.current()) != nil){

FBSDKGraphRequest(graphPath: "me", parameters: ["fields": "id, name, first_name, last_name, picture.type(large), email"]).start(completionHandler: { (connection, result, error) -> Void in

if (error == nil){

self.dict = result as! [String : AnyObject]

print(result!)

print(self.dict)

}

})

}

In iOS 10 don’t forget to set capabilities (Keychain Sharing) :
Go to your project targets -> Capabilities -> Keychain Sharing -> Toggle Switch ON

Detailed Output Log :

{
    email = "ashishkakkad8@gmail.com";
    "first_name" = Ashish;
    id = 1227390383984537;
    "last_name" = Kakkad;
    name = "Ashish Kakkad";
    picture =     {
        data =         {
            "is_silhouette" = 0;
            url = "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-xpf1/v/t1.0-1/p200x200/14192077_1193042490752660_7942165287960590731_n.jpg?oh=bf3bedc4f98190a8f588fc8c3f911328&oe=58ABC3CC&__gda__=1486868896_cfe22abf7b2d6559f3609d8c51fc0663";
        };
    };
}

{

email = "ashishkakkad8@gmail.com";

"first_name" = Ashish;

id = 1227390383984537;

"last_name" = Kakkad;

name = "Ashish Kakkad";

picture = {

data = {

"is_silhouette" = 0;

url = "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-xpf1/v/t1.0-1/p200x200/14192077_1193042490752660_7942165287960590731_n.jpg?oh=bf3bedc4f98190a8f588fc8c3f911328&oe=58ABC3CC&__gda__=1486868896_cfe22abf7b2d6559f3609d8c51fc0663";

};

}

Happy Coding 😀

Update : JSON Array Parsing in Swift Language – Swift 3 – iOS 10 – Xcode 8

August 21, 2022October 28, 2014 by Ashish Kakkad

So, how to parse following type of JSON?

"contacts": [
        {
                "id": "c200",
                "name": "Ashish Kakkad",
                "email": "ashishhkakkad@gmail.com",
                "address": "xx-xx-xxxx,x - street, x - country",
                "gender" : "male",
                "phone": {
                    "mobile": "+91 0000000000",
                    "home": "00 000000",
                    "office": "00 000000"
                }
        },
        {
                "id": "c201",
                "name": "Johnny Depp",
                "email": "johnny_depp@gmail.com",
                "address": "xx-xx-xxxx,x - street, x - country",
                "gender" : "male",
                "phone": {
                    "mobile": "+91 0000000000",
                    "home": "00 000000",
                    "office": "00 000000"
                }
        }
]

"contacts": [

{

"id": "c200",

"name": "Ashish Kakkad",

"email": "ashishhkakkad@gmail.com",

"address": "xx-xx-xxxx,x - street, x - country",

"gender" : "male",

"phone": {

"mobile": "+91 0000000000",

"home": "00 000000",

"office": "00 000000"

}

{

"id": "c201",

"name": "Johnny Depp",

"email": "johnny_depp@gmail.com",

"address": "xx-xx-xxxx,x - street, x - country",

"gender" : "male",

"phone": {

"mobile": "+91 0000000000",

"home": "00 000000",

"office": "00 000000"

}

]

Create JSON Array Object :

let url=URL(string:"https://ashishkakkad.com/contacts.json")
do {
    let allContactsData = try Data(contentsOf: url!)
    let allContacts = try JSONSerialization.jsonObject(with: allContactsData, options: JSONSerialization.ReadingOptions.allowFragments) as! [String : AnyObject]
    if let arrJSON = allContacts["contacts"] {
    }
}
catch {
}

let url=URL(string:"https://ashishkakkad.com/contacts.json")

do {

let allContactsData = try Data(contentsOf: url!)

let allContacts = try JSONSerialization.jsonObject(with: allContactsData, options: JSONSerialization.ReadingOptions.allowFragments) as! [String : AnyObject]

if let arrJSON = allContacts["contacts"] {

}

catch {

}

Parse JSON Array Object :

if let arrJSON = allContacts["contacts"] {
    for index in 0...arrJSON.count-1 {
        let aObject = arrJSON[index] as! [String : AnyObject]
        names.append(aObject["name"] as! String)
        contacts.append(aObject["email"] as! String)
    }
}
print(names)
print(contacts)

if let arrJSON = allContacts["contacts"] {

for index in 0...arrJSON.count-1 {

let aObject = arrJSON[index] as! [String : AnyObject]

names.append(aObject["name"] as! String)

contacts.append(aObject["email"] as! String)

}

print(names)

print(contacts)

Complete code snippet with UITableView:

//
//  ViewController.swift
//  SwiftJSONParsingDemo
//
//  Created by Ashish Kakkad on 12/10/16.
//  Copyright © 2016 Kode. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
    @IBOutlet weak var tableView: UITableView!
    var names: [String] = []
    var contacts: [String] = []
    override func viewDidLoad() {
        super.viewDidLoad()
        let url=URL(string:"https://ashishkakkad.com/contacts.json")
        do {
            let allContactsData = try Data(contentsOf: url!)
            let allContacts = try JSONSerialization.jsonObject(with: allContactsData, options: JSONSerialization.ReadingOptions.allowFragments) as! [String : AnyObject]
            if let arrJSON = allContacts["contacts"] {
                for index in 0...arrJSON.count-1 {
                    let aObject = arrJSON[index] as! [String : AnyObject]
                    names.append(aObject["name"] as! String)
                    contacts.append(aObject["email"] as! String)
                }
            }
            print(names)
            print(contacts)
            self.tableView.reloadData()
        }
        catch {
        }
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    func tableView(_ tableView: UITableView!, numberOfRowsInSection section: Int) -&gt; Int {
        return self.names.count;
    }
    func tableView(_ tableView: UITableView!, didSelectRowAtIndexPath indexPath: IndexPath!) {
        print("You selected name : "+names[indexPath.row])
    }
    func tableView(_ tableView: UITableView, cellForRowAtIndexPath indexPath: IndexPath) -&gt; UITableViewCell{
        var cell = tableView.dequeueReusableCell(withIdentifier: "cell")
        if !(cell != nil) {
            cell = UITableViewCell(style: .subtitle, reuseIdentifier: "cell")
        }
        cell?.textLabel?.text=self.names[indexPath.row]
        cell?.detailTextLabel?.text = self.contacts[indexPath.row]
        return cell!
    }
}

// ViewController.swift

// SwiftJSONParsingDemo

// Created by Ashish Kakkad on 12/10/16.

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var tableView: UITableView!

var names: [String] = []

var contacts: [String] = []

override func viewDidLoad() {

super.viewDidLoad()

let url=URL(string:"https://ashishkakkad.com/contacts.json")

do {

let allContactsData = try Data(contentsOf: url!)

let allContacts = try JSONSerialization.jsonObject(with: allContactsData, options: JSONSerialization.ReadingOptions.allowFragments) as! [String : AnyObject]

if let arrJSON = allContacts["contacts"] {

for index in 0...arrJSON.count-1 {

let aObject = arrJSON[index] as! [String : AnyObject]

names.append(aObject["name"] as! String)

contacts.append(aObject["email"] as! String)

}

print(names)

print(contacts)

self.tableView.reloadData()

}

catch {

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

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

return self.names.count;

}

func tableView(_ tableView: UITableView!, didSelectRowAtIndexPath indexPath: IndexPath!) {

print("You selected name : "+names[indexPath.row])

}

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

var cell = tableView.dequeueReusableCell(withIdentifier: "cell")

if !(cell != nil) {

cell = UITableViewCell(style: .subtitle, reuseIdentifier: "cell")

}

cell?.textLabel?.text=self.names[indexPath.row]

cell?.detailTextLabel?.text = self.contacts[indexPath.row]

return cell!

}

Posted a gist on github.
Helping, Learning, Coding 🙂

XML Parsing in Swift Language – iOS 10 – XMLParser

February 7, 2021October 28, 2014 by Ashish Kakkad

Code syntax is changed in version Swift 3. So, I have updated this article with Xcode 8 – iOS 10

Here is tutorial about how to parse the XML data in Swift Language – iOS 10 – XMLParser
Start with creating object of XMLParser
[code language=”obj-c”]
var parser = XMLParser(contentsOf: urlToSend)!
parser.delegate = self
[/code]
Delegate your class with XMLParserDelegate
[code language=”obj-c”]
class ViewController: UIViewController,XMLParserDelegate {
}
[/code]
Add Delegate methods
[code language=”obj-c”]
func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attributeDict: [String : String]) {
}
func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
}
func parser(_ parser: XMLParser, foundCharacters string: String) {
}
func parser(_ parser: XMLParser, parseErrorOccurred parseError: Error) {
}
[/code]
Parse the XML with following method
[code language=”obj-c”]
parser.parse()
[/code]
Complete sample code:
[code language=”obj-c”]
import UIKit
class ViewController: UIViewController,XMLParserDelegate {
var strXMLData:String = ""
var currentElement:String = ""
var passData:Bool=false
var passName:Bool=false
var parser = XMLParser()
@IBOutlet var lblNameData : UILabel! = nil
override func viewDidLoad() {
super.viewDidLoad()
let url:String="http://api.androidhive.info/pizza/?format=xml"
let urlToSend: URL = URL(string: url)!
// Parse the XML
parser = XMLParser(contentsOf: urlToSend)!
parser.delegate = self
let success:Bool = parser.parse()
if success {
print("parse success!")
print(strXMLData)
lblNameData.text=strXMLData
} else {
print("parse failure!")
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attributeDict: [String : String]) {
currentElement=elementName;
if(elementName=="id" || elementName=="name" || elementName=="cost" || elementName=="description")
{
if(elementName=="name"){
passName=true;
}
passData=true;
}
}
func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
currentElement="";
if(elementName=="id" || elementName=="name" || elementName=="cost" || elementName=="description")
{
if(elementName=="name"){
passName=false;
}
passData=false;
}
}
func parser(_ parser: XMLParser, foundCharacters string: String) {
if(passName){
strXMLData=strXMLData+"\n\n"+string
}
if(passData)
{
print(string)
}
}
func parser(_ parser: XMLParser, parseErrorOccurred parseError: Error) {
print("failure error: ", parseError)
}
}
[/code]
Code Demo on My Github. Both Swift 2.2 and Swift 3 versions are available.
Helping, Learning, Coding 🙂